阅读说明：本技术 影像声音再生装置、影像声音再生方法、程序以及记录介质 (Video/audio reproducing device, video/audio reproducing method, program, and recording medium ) 是由 宫阪修二 于 2017-07-31 设计创作，主要内容包括：影像声音再生装置(1),通过调整与多个个别参数相关联的共同参数,从而调整画质以及音质,具备：参数输出部(110),接受共同参数的输入,输出多个个别参数之中的与输入的共同参数相关联的第一个别参数以及第二个别参数；画质调整部(106),按照输出的第一个别参数调整画质；以及音质调整部(107),按照输出的第二个别参数调整音质,第一个别参数是,按照共同参数的变化而发生变化的画质调整参数,第二个别参数是,按照共同参数的变化而发生变化的音质调整参数。(A video/audio reproducing device (1) adjusts a common parameter associated with a plurality of individual parameters to adjust image quality and sound quality, and is provided with: a parameter output unit (110) that receives an input of a common parameter and outputs a first individual parameter and a second individual parameter associated with the input common parameter, from among the plurality of individual parameters; an image quality adjustment unit (106) that adjusts the image quality according to the output first individual parameter; and a sound quality adjustment unit (107) that adjusts the sound quality in accordance with the output second individual parameter, wherein the first individual parameter is a sound quality adjustment parameter that changes in accordance with a change in the common parameter, and the second individual parameter is a sound quality adjustment parameter that changes in accordance with a change in the common parameter.)

1. An image/sound reproducing apparatus for adjusting image quality and sound quality by adjusting a common parameter associated with a plurality of individual parameters,

the video/audio reproducing apparatus includes:

a parameter output unit that receives an input of the common parameter and outputs a first individual parameter and a second individual parameter associated with the input common parameter, among the plurality of individual parameters;

an image quality adjustment unit that adjusts image quality according to the first individual parameter; and

a sound quality adjusting unit for adjusting the sound quality according to the second individual parameter,

the first individual parameter is an image quality adjustment parameter that changes in accordance with a change in the common parameter,

the second individual parameter is a sound quality adjustment parameter that changes in accordance with a change in the common parameter.

2. The video/audio reproducing apparatus according to claim 1,

the common parameters include a first common parameter associated with the first individual parameter and a second common parameter associated with the second individual parameter,

the parameter output unit receives inputs of the first common parameter and the second common parameter, and outputs the first individual parameter and the second individual parameter associated with the input first common parameter and second common parameter, respectively.

3. The video/audio reproducing apparatus according to claim 1 or 2,

the common parameter is a parameter indicating the age stage of the viewer as the subject.

4. The video/audio reproducing apparatus according to claim 3,

the first individual parameter is an image quality adjustment parameter for changing the image quality so as to compensate for a decrease in eyesight due to age increase,

the second individual parameter is a sound quality adjustment parameter for changing the sound quality so as to compensate for the hearing deterioration caused by aging,

the first individual parameter and the second individual parameter are changed in a linked manner in response to a change in the common parameter.

5. The video/audio reproducing apparatus according to claim 4,

the first individual parameter is a parameter for increasing or decreasing at least one of a brightness gradation, a brightness profile, and a color tone of the image quality,

the range of increase or decrease in at least one of the brightness gradation, the brightness profile, and the hue includes a range that impairs the quality of image that can be perceived by a viewer who is visually normal,

the second individual parameter is a parameter for increasing or decreasing the dynamic range of the sound quality.

6. The video/audio reproducing apparatus according to any one of claims 3 to 5,

the parameter output unit increases or decreases the first individual parameter as the age indicated by the common parameter increases,

the parameter output unit increases or decreases the second individual parameter as the age indicated by the common parameter increases.

7. The video/audio reproducing apparatus according to claim 6,

the parameter output unit changes the first individual parameter to such an extent that the first individual parameter impairs the perceived image quality of a viewer who normally sees the image,

the parameter output unit changes the second individual parameter to such an extent that the perceived sound quality of a normal-hearing viewer is impaired as the age indicated by the common parameter increases.

8. The video/audio reproducing apparatus according to any one of claims 1 to 7,

the first individual parameter includes a plurality of image quality adjustment parameters,

the second individual parameter includes a plurality of the sound quality adjustment parameters.

9. A method for reproducing video and audio signals includes the steps of,

accepting input of a common parameter associated with a plurality of individual parameters,

outputting a first individual parameter and a second individual parameter associated with the common parameter inputted among the plurality of individual parameters,

adjusting the image quality according to the outputted first individual parameter,

adjusting the sound quality according to the outputted second individual parameter,

the first individual parameter is an image quality adjustment parameter that changes in accordance with a change in the common parameter,

the second individual parameter is a sound quality adjustment parameter that changes in accordance with a change in the common parameter.

10. A program for causing a computer to execute a process of,

accepting input of a common parameter associated with a plurality of individual parameters,

outputting a first individual parameter and a second individual parameter associated with the common parameter inputted among the plurality of individual parameters,

adjusting the image quality according to the outputted first individual parameter,

adjusting the sound quality according to the outputted second individual parameter,

the first individual parameter is an image quality adjustment parameter that changes in accordance with a change in the common parameter,

the second individual parameter is a sound quality adjustment parameter that changes in accordance with a change in the common parameter.

11. A recording medium having a control program for causing a processor to execute a process,

the recording medium is non-volatile and computer-readable,

the processing comprises the following steps:

accepting input of a common parameter associated with a plurality of individual parameters;

outputting a first individual parameter and a second individual parameter associated with the common parameter input among the plurality of individual parameters;

adjusting the image quality according to the output first individual parameter; and

adjusting the sound quality according to the outputted second individual parameter,

the first individual parameter is an image quality adjustment parameter that changes in accordance with a change in the common parameter,

the second individual parameter is a sound quality adjustment parameter that changes in accordance with a change in the common parameter.

Technical Field

The present disclosure relates to a video/audio reproducing device, a video/audio reproducing method, a program, and a recording medium.

Background

For example, according to "national time of life survey (2015)" of NHK broadcast culture institute, as shown in fig. 1, the ages of 70 years and older in the elderly take a very long time to watch tv compared with the younger generation. Further, according to the research of the institute of labor science, as shown in fig. 2, the decrease in the physical function due to the aging is more remarkable than the decrease in the other physical functions. Further, according to the investigation by reob corporation, as shown in fig. 3A and 3B, both the eyesight and the hearing ability are functionally reduced with the same tendency as the age increases. On the other hand, in view of such background, technical development for adjusting image quality suitable for the elderly is being performed. For example, patent document 1 discloses an image correction device that corrects an image by emphasizing one of a luminance grayscale, a luminance profile, and a hue. Further, technical development is also performed to adjust sound quality suitable for the elderly. For example, patent document 2 discloses a sound reproducing device that changes the frequency characteristics of a sound signal in accordance with an increase in sound volume.

(Prior art document)

(patent document)

Patent document 1: international publication No. 2016/017081

Patent document 2: japanese patent No. 5149991

As shown in fig. 3A and 3B, the visual and auditory functions are monotonously decreased with age, and particularly, are significantly decreased after the half of the age of 50 years, which is also in a decreasing trend. However, as shown in patent documents 1 and 2, there is no technique for adjusting the image quality and the sound quality in a coordinated manner so as to be suitable for the physical state of the viewer.

Disclosure of Invention

The present disclosure provides a video/audio reproducing device, a video/audio reproducing method, a program, and a recording medium, which enable a viewer to easily adjust image quality and sound quality suitable for the viewer.

An audio-video reproducing device according to an aspect of the present disclosure includes: a parameter output unit that receives an input of the common parameter and outputs a first individual parameter and a second individual parameter associated with the input common parameter, among the plurality of individual parameters; an image quality adjustment unit that adjusts image quality according to the first individual parameter; and a sound quality adjustment unit that adjusts sound quality according to the second individual parameter that is output, wherein the first individual parameter is a picture quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter is a sound quality adjustment parameter that changes according to a change in the common parameter.

A video/audio reproducing method according to one aspect of the present disclosure receives an input of a common parameter associated with a plurality of individual parameters, outputs a first individual parameter and a second individual parameter associated with the input common parameter among the plurality of individual parameters, adjusts image quality according to the output first individual parameter, and adjusts audio quality according to the output second individual parameter, the first individual parameter being an image quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter being an audio quality adjustment parameter that changes according to a change in the common parameter.

A program according to one aspect of the present disclosure causes a computer to receive an input of a common parameter associated with a plurality of individual parameters, output a first individual parameter and a second individual parameter associated with the input common parameter among the plurality of individual parameters, adjust image quality according to the output first individual parameter, and adjust sound quality according to the output second individual parameter, the first individual parameter being an image quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter being a sound quality adjustment parameter that changes according to a change in the common parameter.

A recording medium according to an aspect of the present disclosure includes a recording medium having a control program for causing a processor to execute a process, the recording medium being nonvolatile and computer-readable, the process including: the method includes receiving an input of a common parameter associated with a plurality of individual parameters, outputting a first individual parameter and a second individual parameter associated with the input common parameter among the plurality of individual parameters, adjusting image quality according to the output first individual parameter, and adjusting sound quality according to the output second individual parameter, the first individual parameter being an image quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter being a sound quality adjustment parameter that changes according to a change in the common parameter.

The general or specific aspects described above may be implemented by a system, an apparatus, an integrated circuit, a computer program, or a computer-readable recording medium, or may be implemented by any combination of a system, an apparatus, an integrated circuit, a computer program, and a recording medium. The computer-readable recording medium includes, for example, a nonvolatile recording medium such as a CD-ROM (Compact Disc-Read only memory).

According to the video/audio reproducing device and the like of the present disclosure, the viewer can easily adjust the image quality and the sound quality suitable for the viewer.

Drawings

Fig. 1 is a diagram showing an example of statistical data of viewing times of a television set by each year.

Fig. 2 is a diagram showing an example of statistical data of a decrease in various physical functions due to age increase.

Fig. 3A is a diagram showing an example of statistical data of a decrease in eyesight due to age.

Fig. 3B is a diagram showing an example of statistical data of hearing loss due to age increase.

Fig. 4 is a diagram showing an example of a functional configuration of the video/audio reproducing apparatus according to embodiment 1.

Fig. 5 is a diagram showing the relationship between the common parameter and the individual parameter in embodiment 1.

Fig. 6 is a diagram showing an example of the picture quality adjustment parameter set.

Fig. 7 is a diagram showing an example of a sound quality adjustment parameter set.

Fig. 8 is a diagram showing an example of a functional configuration of the video/audio reproducing apparatus according to embodiment 2.

Fig. 9 is a diagram showing the relationship between the common parameter and the individual parameter in embodiment 2.

Detailed Description

The present inventors have studied a technique of adjusting image quality and sound to the extent that viewers age as described in the section of "background art". In particular, the present inventors have studied the techniques of patent documents 1 and 2, and have found that there is no technique for adjusting the image quality and the sound quality in a linked manner so as to be suitable for the physical state of the viewer, and have studied such a technique. After earnest study, the present inventors invented a video/audio reproducing device and the like described below.

In view of the above, the video/audio reproducing apparatus according to one aspect of the present disclosure adjusts a common parameter associated with a plurality of individual parameters to adjust image quality and sound quality, and a parameter output unit that receives an input of the common parameter and outputs a first individual parameter and a second individual parameter associated with the input common parameter, among the plurality of individual parameters; an image quality adjustment unit that adjusts image quality according to the first individual parameter; and a sound quality adjustment unit that adjusts sound quality according to the second individual parameter that is output, wherein the first individual parameter is a picture quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter is a sound quality adjustment parameter that changes according to a change in the common parameter.

According to the above aspect, the video/audio reproducing apparatus adjusts the image and the audio to the image quality and the sound quality desired by the viewer by inputting the common parameter desired by the viewer to the video/audio reproducing apparatus. Therefore, the viewer can easily adjust the image quality and sound quality suitable for the viewer.

In the video/audio reproducing apparatus according to one aspect of the present disclosure, the common parameter may include a first common parameter associated with the first individual parameter and a second common parameter associated with the second individual parameter, and the parameter output unit may receive an input of the first common parameter and the second common parameter and output the first individual parameter and the second individual parameter associated with the input first common parameter and second common parameter, respectively.

According to the above aspect, the first common parameter and the second common parameter desired by the viewer are input to the video/audio reproducing apparatus, and the video/audio reproducing apparatus adjusts the image and the audio to the image quality and the sound quality desired by the viewer, respectively. Therefore, the viewer can easily adjust the image quality and sound quality suitable for the viewer.

In the video/audio reproducing apparatus according to one aspect of the present disclosure, the common parameter may be a parameter indicating an age stage of a target viewer.

According to the form, the criterion of the common parameter is the age of the viewer. Therefore, the viewer can easily set the common parameter according to his or her physical condition.

In the video/audio reproducing apparatus according to one aspect of the present disclosure, the first individual parameter may be an image quality adjustment parameter that changes image quality so as to compensate for a decrease in eyesight due to age, the second individual parameter may be a sound quality adjustment parameter that changes sound quality so as to compensate for a decrease in hearing due to age, and the first individual parameter and the second individual parameter may change in association with each other in response to a change in the common parameter.

According to the above aspect, for example, the higher the age stage corresponding to the value of the common parameter, the greater the degree to which the image quality adjustment parameter compensates for the visual deterioration due to age, and the greater the degree to which the sound quality adjustment parameter compensates for the hearing deterioration due to age. Accordingly, the video/audio reproducing device can compensate for the visual deterioration and the auditory deterioration due to age, and can perform image quality adjustment and sound quality adjustment suitable for the elderly to view and hear.

In the video/audio reproducing apparatus according to one aspect of the present disclosure, the first individual parameter may be a parameter for increasing or decreasing at least one of a brightness level, a brightness profile, and a hue of the image quality, at least one increase/decrease range of the brightness level, the brightness profile, and the hue may include a range of the image quality that is impaired to be perceivable by a viewer with normal vision, and the second individual parameter may be a parameter for increasing or decreasing a dynamic range of the sound quality.

According to the above aspect, the first individual parameter is adjusted to include a range that impairs the image quality that can be perceived by a viewer who is visually normal. The range is associated with a range of image quality that can be perceived by the elderly, so that the first individual parameter can provide image quality that conforms to the young layer to the old layer. Therefore, the range of the video/audio reproducing apparatus to which the viewer is applied can be expanded.

In the video/audio reproducing apparatus according to one aspect of the present disclosure, the parameter output unit may increase or decrease the first individual parameter as the age indicated by the common parameter increases, and the parameter output unit may increase or decrease the second individual parameter as the age indicated by the common parameter increases.

According to the above-mentioned form, the first individual parameter and the second individual parameter are monotonically increased or decreased with respect to the increase or decrease in the age group. Therefore, the first individual parameter and the second individual parameter can be associated with the age stage with certainty and ease. When the first individual parameter and the second individual parameter are increased or decreased, the perceived image quality and sound quality of the viewer change smoothly.

In the video/audio reproducing apparatus according to one aspect of the present disclosure, the parameter output unit may change the first individual parameter to a level that impairs quality of sound that can be perceived by a viewer with normal visual perception, as the age indicated by the common parameter increases, and the parameter output unit may change the second individual parameter to a level that impairs quality of sound that can be perceived by a viewer with normal auditory perception, as the age indicated by the common parameter increases.

In the above-described mode, the first individual parameter and the second individual parameter can be changed to such a degree that the perception of a normal-vision viewer or a normal-hearing viewer is impaired. For example, the degree of image quality that is impaired to a viewer who can perceive it as normal and the degree of image quality that is impaired to a viewer who can perceive it as normal hearing can be set to a degree of impaired perception that an elderly person can perceive without impairment but a young layer feels unpleasant. In this case, the parameter output unit can output the first individual parameter and the second individual parameter that respectively correspond to the young tier to the old tier.

In the video/audio reproducing apparatus according to one aspect of the present disclosure, the first individual parameter may include a plurality of the image quality adjustment parameters, and the second individual parameter may include a plurality of the sound quality adjustment parameters.

According to the above aspect, the video/audio reproducing apparatus adjusts the image quality by adjusting the plurality of image quality adjustment parameters, and adjusts the sound quality by adjusting the plurality of sound quality adjustment parameters. Therefore, it is possible to perform image quality adjustment and sound quality adjustment that faithfully reflect the content of the common parameter and are suitable for the viewer.

A video/audio reproducing method according to one aspect of the present disclosure receives an input of a common parameter associated with a plurality of individual parameters, outputs a first individual parameter and a second individual parameter associated with the input common parameter among the plurality of individual parameters, adjusts image quality according to the output first individual parameter, and adjusts audio quality according to the output second individual parameter, the first individual parameter being an image quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter being an audio quality adjustment parameter that changes according to a change in the common parameter. According to the above aspect, the same effects as those of the video/audio reproducing apparatus according to one aspect of the present disclosure are obtained.

A program according to one aspect of the present disclosure causes a computer to receive an input of a common parameter associated with a plurality of individual parameters, output a first individual parameter and a second individual parameter associated with the input common parameter among the plurality of individual parameters, adjust image quality according to the output first individual parameter, and adjust sound quality according to the output second individual parameter, the first individual parameter being an image quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter being a sound quality adjustment parameter that changes according to a change in the common parameter. According to the above aspect, the same effects as those of the video/audio reproducing apparatus according to one aspect of the present disclosure are obtained.

A recording medium according to an aspect of the present disclosure includes a recording medium having a control program for causing a processor to execute a process, the recording medium being nonvolatile and computer-readable, the process including: the method includes receiving an input of a common parameter associated with a plurality of individual parameters, outputting a first individual parameter and a second individual parameter associated with the input common parameter among the plurality of individual parameters, adjusting image quality according to the output first individual parameter, and adjusting sound quality according to the output second individual parameter, the first individual parameter being an image quality adjustment parameter that changes according to a change in the common parameter, and the second individual parameter being a sound quality adjustment parameter that changes according to a change in the common parameter. According to the above aspect, the same effects as those of the video/audio reproducing apparatus according to one aspect of the present disclosure are obtained.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The embodiments described below all show a specific example of the present disclosure. The numerical values, shapes, materials, constituent elements, arrangement positions and connection forms of the constituent elements, order of use, order of communication, and the like shown in the following embodiments are examples, and do not limit the spirit of the present disclosure. Among the components of the following embodiments, components that are not described in the embodiments showing the highest concept will be described as arbitrary components. Each drawing is a schematic diagram, and is not necessarily a strictly illustrated drawing. In each of the drawings, the same reference numerals are given to the same actual components, and redundant description is omitted or simplified.

[ embodiment 1]

The video/audio reproducing apparatus 1 according to embodiment 1 will be described. Fig. 4 shows an example of the functional configuration of the video/audio reproducing apparatus 1 according to embodiment 1. As shown in fig. 4, the video/audio reproducing apparatus 1 adjusts the video signal and the audio signal input to the video display panel 108 and the speaker 109, and outputs the adjusted signals to the video display panel 108 and the speaker 109. An example of the device including the image display panel 108 and the speaker 109 is a digital television receiver. An example of the image display panel 108 is a liquid crystal panel, or an organic or inorganic el (electroluminescence). In the present embodiment, the video/audio reproducing apparatus 1 receives a remote operation from a remote controller (hereinafter, referred to as "remote controller") 200. An example of the wireless communication between the video/audio reproducing apparatus 1 and the remote controller 200 is infrared communication or radio wave communication.

The video/audio reproducing apparatus 1 includes a user interface unit 100, a detection unit 101, a first conversion unit 102, a second conversion unit 103, an image quality adjustment parameter table 104, a sound quality adjustment parameter table 105, an image quality adjustment unit 106, and a sound quality adjustment unit 107. The detection unit 101, the first conversion unit 102, and the second conversion unit 103, and the parameter output unit 110.

The user interface 100 enables the user to adjust and set common parameters associated with image quality adjustment parameters, which will be described later, and sound quality adjustment parameters, which will be described later. The user interface unit 100 is operated by at least one of a device including the image display panel 108 and/or the speaker 109 and the remote controller 200. The user interface unit 100 obtains information input by the user to at least one of the apparatus including the image display panel 108 and/or the speaker 109 and the remote controller 200, and outputs a signal corresponding to the obtained information to the detection unit 101. Examples of the information are information of common parameters.

Such a user interface unit 100 may constitute a display image to be displayed on the image display panel 108, may constitute a display panel of the remote controller 200, or may constitute a display image to be displayed on the display panel of the remote controller 200. In such a case, the user interface unit 100 outputs a signal corresponding to information input by the user via the apparatus including the image display panel 108 and/or the speaker 109, the remote controller 200, and the like, while changing the display image. Alternatively, the user interface unit 100 may be configured as a device including the image display panel 108 and/or the speaker 109, or a physical operation device such as a switch, a button, a dial, and a slider disposed in the remote controller 200. In this case, the user interface unit 100 outputs a signal corresponding to an operation input to the operation device by the user.

The detection unit 101 detects information of the common parameter designated via the user interface unit 100, and outputs the detection result to the first conversion unit 102 and the second conversion unit 103. The detection unit 101 detects information of the common parameter from the information obtained from the user interface unit 100. An example of the information of the common parameter is a set value of the common parameter. In the present embodiment, the common parameter is a parameter indicating the age stage of the target viewer. The common parameter may be represented by a numerical value corresponding to the age group, and for example, the numerical value of the common parameter may be set to be larger as the age group is higher.

The first conversion unit 102 converts the value of the common parameter detected by the detection unit 101 into an image quality adjustment parameter. Specifically, the first conversion unit 102 refers to the relationship between the common parameter and the image quality adjustment parameter stored in the image quality adjustment parameter table 104, determines the value of the image quality adjustment parameter corresponding to the value of the common parameter, and outputs the value to the image quality adjustment unit 106.

The second conversion unit 103 converts the value of the common parameter detected by the detection unit 101 into a sound quality adjustment parameter. Specifically, the second conversion unit 103 refers to the relationship between the common parameter and the sound quality adjustment parameter stored in the sound quality adjustment parameter table 105, determines the value of the sound quality adjustment parameter corresponding to the value of the common parameter, and outputs the value to the sound quality adjustment unit 107.

The image quality adjustment parameter table 104 and the sound quality adjustment parameter table 105 can store information and can extract the stored information. The image quality adjustment parameter table 104 and the sound quality adjustment parameter table 105 are implemented by, for example, a ROM (Read-Only Memory), a ram (random Access Memory), a semiconductor Memory such as a flash Memory, a hard disk drive, or a storage device such as an ssd (solid state drive). The image quality adjustment parameter table 104 stores values of image quality adjustment parameters corresponding to the values of the common parameters. The sound quality adjustment parameter table 105 stores values of sound quality adjustment parameters corresponding to the values of the common parameters.

The image quality adjustment unit 106 adjusts the image quality of the image signal input to the image display panel 108 in accordance with the image quality adjustment parameter that is the output result of the first conversion unit 102, and then outputs the image signal to the image display panel 108.

The sound quality adjustment unit 107 adjusts the sound quality of the audio signal input to the speaker 109 in accordance with the sound quality adjustment parameter as the output result of the second conversion unit 103, and outputs the audio signal to the speaker.

The image display panel 108 displays the image signal adjusted by the image quality adjustment unit 106. The speaker 109 outputs the audio signal adjusted by the sound quality adjustment unit 107.

The components of the video/audio reproducing apparatus 1 including the user interface unit 100, the detection unit 101, the first conversion unit 102, the second conversion unit 103, the image quality adjustment unit 106, and the sound quality adjustment unit 107 may be configured by a computer system (not shown) including a processor such as a cpu (central processing unit) or a dsp (digital Signal processor), a RAM, a ROM, and the like. Some or all of the functions of the above-described components may be realized by the CPU or the DSP using the RAM as an operating memory and executing a program recorded in the ROM. Some or all of the functions of the components may be implemented by dedicated hardware circuits such as electronic circuits and integrated circuits. Some or all of the functions of the components described above may be configured by a combination of the software functions and the hardware circuits described above. The program may be recorded in advance in the ROM, or may be provided as an application program by communication via a communication network such as the internet, communication based on a mobile communication standard, and other wireless networks, wired networks, or broadcasting.

The user interface unit 100 and the parameter output unit 110 may be mounted on the same device or may be mounted on different devices. In the latter case, the user interface unit 100 and the parameter output unit 110 may be connected to each other by wireless communication. The parameter output unit 110, the image quality adjustment unit 106, and the sound quality adjustment unit 107 may be mounted on the same device or may be mounted on different devices. In the latter case, the connection between the parameter output unit 110 and the image quality adjustment unit 106 and the connection between the parameter output unit 110 and the sound quality adjustment unit 107 may be connections via wireless communication. An example of the wireless communication is infrared communication or communication based on radio waves. Examples of radio wave-based communication include short-range Wireless communication such as Bluetooth (registered trademark) and ZigBee (registered trademark), and Wireless lan (local Area network) such as Wi-Fi (registered trademark).

Further, common parameters and individual parameters are described in detail. A common parameter associated with a plurality of individual parameters. The image quality adjustment parameter is an example of a first individual parameter among the plurality of individual parameters, and the sound quality adjustment parameter is an example of a second individual parameter among the plurality of individual parameters. Fig. 5 shows the relationship of common parameters to individual parameters. Fig. 5 shows an example of a display section of common parameters of the user interface section 100 in the middle stage. The display portion 100a of fig. 2 may be configured to display an image of the common parameter, may be configured to display the common parameter as an image, or may be configured to be a physical operation device linked to a change in the common parameter. In the present embodiment, the common parameter is a parameter for parameterizing the ages of users (viewers) in ascending or descending order. In other words, the common parameter is a parameter that parameterizes the age stage of the user. The common parameter, varies along the age axis 100 b. For simplicity of explanation, the starting point of the age axis 100b is expressed as "low age", and the ending point is expressed as "high age". The display portion 100a includes an age axis 100b, and a slider 100c that moves along the age axis 100 b. The user interface 100 moves the slider 100c along the age axis 100b in response to a command input to the user interface 100 by the user.

The upper part of fig. 5 shows an example of a table stored in the image quality adjustment parameter table 104. In this table, the image quality adjustment parameters constituting the first individual parameter are stored with the age stage of the user as an index. The image quality adjustment parameters corresponding to the common parameters are stored in advance in a table for each age stage of the user, and the stored image quality adjustment parameters are associated with the common parameters. In the present embodiment, the age group is not constituted by continuous variables, but is constituted by a plurality of indexes generated by dividing the range from the young to the old into a plurality of stages. Specifically, the age stages are divided into years, and are constituted by indices of "young tier", "30 teenager", "40 teenager", "50 teenager", "60 teenager" and "advanced tier". The age stage may be constituted by continuous variables. Further, in the display portion 100a, each index of the age stage may be indicated on the age axis 100 b. In the present specification, "senior level" and "elderly person" mean a person in the age group 60 years or later and the age group. However, the age of the elderly and senior patients is not limited to 60 years. In this specification, expressions such as "60 years" and "50 years" indicating the age may be expressed by expressions such as "60 years" and "50 years".

Image quality adjustment parameters are set for each index. Specifically, an image quality adjustment parameter set composed of a plurality of image quality adjustment parameters is set for each index. Further, a plurality of parameters for adjusting image quality are set for each index so as to be adapted to the average visual characteristics of the user's age corresponding to each index.

For example, fig. 6 shows an example of the picture quality adjustment parameter set. The variable value of each image quality adjustment parameter is set for each index in a manner of conforming to the visual characteristics of each year, and is composed of histogram adaptive gray scale correction, average brightness adaptive gray scale correction, brightness profile correction, full color chroma correction, full color brightness correction, specific color hue correction, specific color chroma correction, and specific color brightness correction. The picture quality adjustment parameter set may include at least one of the picture quality adjustment parameters. Here, the histogram adaptive gray-scale correction and the average luminance adaptive gray-scale correction are examples of increase and decrease of a luminance gray-scale, the luminance profile correction is an example of increase and decrease of a luminance profile, and the full-color-degree correction, the full-color brightness correction, the specific-color hue correction, the specific-color-degree correction, and the specific-color brightness correction are examples of increase and decrease of a color tone. Furthermore, the characteristic of conforming to the visual sense of a certain age means that the user of the age can easily see the image. As shown in fig. 6, the value of the image quality adjustment parameter monotonically increases or decreases as the age increases. Such image quality adjustment parameters are parameters that change the image quality so as to compensate for the deterioration of the user's eyesight due to age.

As the index moves toward the advanced layer, the value of the image quality adjustment parameter in the image quality adjustment parameter set changes to an excessive value to the extent that the image quality is deteriorated to the image quality that can be perceived by a visually normal user. For example, the value of the image quality adjustment parameter provides an unacceptable image quality in view of the quality of a conventional commercial television receiver.

Fig. 5 shows an example of a table stored in the sound quality adjustment parameter table 105 in the lower stage. In this table, the sound quality adjustment parameters constituting the second individual parameter are stored with the age stage of the user as an index. The sound quality adjustment parameters corresponding to the common parameters are stored in advance in a table for each age stage of the user, and the stored sound quality adjustment parameters are associated with the common parameters. In the present embodiment, the age stage of the sound quality adjustment parameter is configured by a plurality of indexes similar to those of the sound quality adjustment parameter. The age stage may be constituted by continuous variables.

Then, a sound quality adjustment parameter is set for each index. Specifically, a voice quality adjustment parameter set including a plurality of voice quality adjustment parameters is set for each index. Further, a plurality of parameters for sound quality adjustment, which are adjusted so as to be suitable for the average auditory characteristics of the user's age corresponding to each index, are set for each index. Specifically, the sound quality adjustment parameter set may include, for example, a filter coefficient for correcting the perceptual sensitivity of a high-frequency component deteriorated by age, or a parameter for adjusting the degree of compression in the dynamic range compression process for each generation of year for correcting a phenomenon of repetition caused by age.

For example, fig. 7 shows an example of a sound quality adjustment parameter set. The variable values of the sound quality adjustment parameters, which are each composed of a filter coefficient for correcting a high frequency component and a dynamic range compression ratio of sound pressure, are set for each index so as to match the characteristics of auditory sense in each year. The set of pitch adjustment parameters may also comprise at least one of said pitch adjustment parameters. Here, increasing or decreasing the dynamic range corresponds to increasing or decreasing the dynamic range compression ratio, respectively. The feature of being suitable for the auditory sense of a certain age means that it is easy for users of that age to hear sounds. As shown in fig. 7, the value of the sound quality adjustment parameter monotonically increases or decreases as the age increases. Such a sound quality adjustment parameter is a parameter that changes the sound quality so as to compensate for the deterioration of the user's hearing due to age. The sound quality adjustment parameter changes in association with the image quality parameter with respect to changes in age and changes in the common parameter.

As the index moves toward the higher layers, the value of the voice quality adjustment parameter in the voice quality adjustment parameter set changes to an excessive value that impairs the voice quality that can be perceived by a user with normal hearing. For example, the value of the sound quality adjustment parameter provides an unacceptable sound quality from the quality of a conventional commercial television receiver.

The operation of the video/audio reproducing apparatus 1 configured as described above will be described with reference to fig. 4 and 5. First, the user sets a common parameter as the age class of the user himself using the user interface unit 100. That is, the user moves the slider 100c of the display portion 100a to a position at the age stage of the user himself. For example, if the user is 20 years old, the slider 100c may be adjusted to a position of "low age" as a starting point of the parameter. When the user is 70 years old, the slider 100c may be slid in the right direction of the drawing to be adjusted to the vicinity of "high age" as the end point. Of course, the position of the slider 100c does not necessarily reflect the actual age, and may be set according to the user's own consciousness.

In addition, in the display portion 100a of fig. 5, for the sake of simplifying the description, the start point of the age axis 100b is expressed as "low age", and the end point is expressed as "high age", but the present invention is not limited thereto. A description of the gist of "please designate a grade of age" and an arrow may be displayed toward the end point without particularly setting a name at the start point. Alternatively, the display portion 100a may be configured to directly designate the age itself. In this case, the image quality adjustment parameter set and the voice quality adjustment parameter set may be defined by using each age as an index.

Alternatively, the display portion 100a uses an expression showing the state of the image quality and the sound quality without using the age itself and the expression of the thought age. For example, in fig. 5, it is also possible to use an expression of "simple" at the start point described as "low age" and an expression of "sparkling" at the end point described as "high age". Further, description of the expression may be described in a specification or the like of an apparatus including the display portion 100a, the image display panel 108, and/or the speaker 109. This explanation may be written, for example, as "recommending a sparkling image with age", or the like, and may guide the setting of the slider 100c due to age.

In fig. 4, the user interface unit 100 is shown in a different location from the image display panel 108, but a setting screen such as the display portion 100a in fig. 5 may be displayed on the image display panel 108. The operation of the setting screen may be performed by the remote controller 200. The remote controller 200 may be a remote controller attached to the image display panel 108.

The user interface unit 100 is defined such that common parameters are set according to the position of the slider 100c that slides in the left-right direction as shown in fig. 5, but is not limited thereto. Instead of the slider 100c, the user interface section 100 may use an icon reminiscent of a rotary type, so-called "knob". The user interface section 100 may set a common parameter according to a rotation position of the icon rotated in the left or right direction.

Next, the detection unit 101 obtains the position of the slider 100c from the user interface unit 100, and detects the value of the common parameter corresponding to the obtained position. In the present description, it is assumed that the position of the slider 100c is set slightly closer to the advanced age than the center of the age axis 100b, as shown in the display portion 100a of fig. 5.

Next, the first conversion unit 102 refers to the image quality adjustment parameter table 104, and converts the value of the common parameter detected by the detection unit 101 into an image quality adjustment parameter, specifically, an image quality adjustment parameter set. The first conversion unit 102 selects an image quality adjustment parameter set corresponding to the index from the image quality adjustment parameter table 104 using the value of the common parameter corresponding to the position of the slider 100c on the age axis 100b as the index, and outputs the selected image quality adjustment parameter set to the image quality adjustment unit 106.

For example, when there is no index that matches the value of the common parameter at the position of the slider 100c among the plurality of indexes corresponding to the plurality of image quality adjustment parameter sets, the first conversion unit 102 may select an index that is closest to the value of the common parameter and determine the index as the image quality adjustment parameter set corresponding to the selected index. In the example of fig. 5, since the position of the slider 100c does not match the position of any image quality adjustment parameter set, the first conversion unit 102 selects the image quality adjustment parameter set for the age of 50 or older that is closest to the position of the slider 100 c. The index of the selected picture quality adjustment parameter set for the age of 50 or older is also the index closest to the value of the common parameter. Alternatively, the first conversion unit 102 may select at least two indices that are close to the value of the common parameter, and may calculate the image quality adjustment parameter set corresponding to the value of the common parameter by interpolating the image quality adjustment parameter set corresponding to the selected indices. In the example of fig. 5, the first conversion unit 102 may perform interpolation using the image quality adjustment parameter sets for ages of 40, 50, and 60.

As the index approaches a value indicating a high age, the image quality adjustment parameter associated with the index becomes an excessive value that changes the image quality to such an extent that the image quality perceivable by a viewer who normally sees the image is impaired. The video/audio reproducing apparatus 1 may notify the user that the image quality is deteriorated. For example, when the value of the image quality adjustment parameter corresponding to the common parameter set by the user is equal to or more than a level that impairs the image quality that can be perceived by a viewer who is visually normal, the video/audio playback device 1 may change the color of the slider 100c, display a message or the like that conveys the change.

After the detection by the detection unit 101, the second conversion unit 103 refers to the sound quality adjustment parameter table 105, and converts the value of the common parameter detected by the detection unit 101 into a sound quality adjustment parameter, specifically, a sound quality adjustment parameter set. The second conversion unit 103 selects a sound quality adjustment parameter set corresponding to the index from the sound quality adjustment parameter table 105 using the value of the common parameter corresponding to the position of the slider 100c on the age axis 100b as the index, and outputs the selected sound quality adjustment parameter set to the sound quality adjustment unit 107.

For example, when there is no index that matches the value of the common parameter at the position of the slider 100c among the plurality of indexes corresponding to the plurality of sound quality adjustment parameter sets, the second conversion unit 103 may select the index closest to the value of the common parameter and determine the index as the sound quality adjustment parameter set corresponding to the selected index. In the example of fig. 5, the second conversion unit 103 selects the sound quality adjustment parameter set for the 50 th or older that is closest to the position of the slider 100 c. Alternatively, the second conversion unit 103 may calculate a voice quality adjustment parameter set corresponding to the value of the common parameter by performing interpolation using voice quality adjustment parameter sets corresponding to at least two indices that are close to the value of the common parameter. In the example of fig. 5, the second conversion unit 103 may perform interpolation using the sound quality adjustment parameter sets for persons in their ages of 40, 50, and 60.

As the index approaches a value indicating a high age, the sound quality adjustment parameter associated with the index becomes an excessive value that changes the sound quality to such an extent that the sound quality perceivable by a normal-hearing viewer is impaired. The video/audio reproducing apparatus 1 may notify the user that the sound quality is impaired. For example, the video/audio reproducing apparatus 1 may change the color of the slider 100c or display a message or the like for notifying the change, as in the case of the image quality adjustable parameter.

The video/audio reproducing apparatus 1 can continuously adjust and set the image quality and the audio quality in a normal adjustment range where the range of the image quality and the audio quality is not impaired and an excessive adjustment range where the range of the image quality and the audio quality is impaired by the movement of the slider 100 c. Such a video/audio reproducing apparatus 1 provides a user interface that conforms to a phenomenon of continuous occurrence of a time-lapse phenomenon such as "deterioration due to aging".

When the video/audio reproducing apparatus 1 actually views and listens to the image quality adjustment parameter set and the sound quality adjustment parameter set as described above, the image quality adjustment unit 106 adjusts the image quality of the input image signal in accordance with the image quality adjustment parameter set obtained from the first conversion unit 102, and causes the image display panel 108 to output an image. Here, a method of adjusting the image quality based on the image quality adjustment parameter is a conventionally known method described in patent document 1, for example, and therefore, a detailed description thereof is omitted. At the same time, the sound quality adjustment unit 107 adjusts the sound quality of the input audio signal in accordance with the sound quality adjustment parameter set obtained from the second conversion unit 103, and causes the speaker 109 to output audio. Here, a method of adjusting the sound quality based on the sound quality adjustment parameter is a conventionally known method described in patent document 2, for example, and therefore, a detailed description thereof is omitted.

As described above, the video/audio playback device 1 according to embodiment 1 adjusts the image quality and the sound quality by adjusting the common parameter associated with the plurality of individual parameters. The video/audio reproducing apparatus 1 receives an input of the common parameter, outputs the image quality adjustment parameter and the audio quality adjustment parameter associated with the input common parameter, adjusts the image quality according to the output image quality adjustment parameter, and adjusts the audio quality according to the output audio quality adjustment parameter. The image quality adjustment parameter and the sound quality adjustment parameter change in accordance with a change in the common parameter. Therefore, by inputting the common parameters desired by the viewer to the video/audio reproducing apparatus 1, the video/audio reproducing apparatus 1 adjusts the image and the audio to the image quality and the sound quality desired by the viewer. Therefore, the viewer can easily adjust the image quality and sound quality suitable for the viewer.

In the video/audio playback device 1 according to embodiment 1, the common parameter is a parameter indicating the age stage of the target viewer. Accordingly, since the criterion for determining the common parameter is the age of the viewer, the viewer can easily set the common parameter according to the physical condition of the viewer.

In the video/audio playback device 1 according to embodiment 1, the image quality adjustment parameter for changing the image quality so as to compensate for a decrease in eyesight due to age and the sound quality adjustment parameter for changing the sound quality so as to compensate for a decrease in hearing due to age are changed in a coordinated manner with respect to a change in the common parameter. For example, the higher the age stage corresponding to the value of the common parameter, the greater the degree to which the image quality adjustment parameter compensates for the visual deterioration due to age, and the greater the degree to which the sound quality adjustment parameter compensates for the hearing deterioration due to age. Accordingly, the video/audio reproducing apparatus 1 can compensate for the visual deterioration and the auditory deterioration due to the age, and can perform image quality adjustment and sound quality adjustment suitable for the elderly to view and hear.

In the video/audio playback device 1 according to embodiment 1, the image quality adjustment parameter is adjusted to include a range that impairs the quality of the image that can be perceived by a viewer who is visually normal. The range is associated with a range of image quality that can be perceived by the elderly, so that image quality adjustment parameters can provide image quality that conforms to the young layer to the old layer. Therefore, the range of the video/audio reproducing apparatus 1 to which the viewer is applied can be expanded.

In the video/audio playback device 1 according to embodiment 1, the image quality adjustment parameter and the sound quality adjustment parameter monotonically increase or decrease with respect to an increase or decrease in age. Therefore, the image quality adjustment parameter and the sound quality adjustment parameter can be associated with the age stage with certainty and ease. When the image quality adjustment parameter and the sound quality adjustment parameter are increased or decreased, the perceived image quality and sound quality of the viewer change smoothly.

Further, the image quality adjustment parameter and the sound quality adjustment parameter can be changed to such an extent that the perceived image quality and sound quality of a viewer who is normal in vision or hearing are impaired as the age becomes higher. For example, the degree of image quality that is impaired to a viewer who can perceive it as normal and the degree of image quality that is impaired to a viewer who can perceive it as normal hearing can be set to a degree of impaired perception that an elderly person can perceive without impairment but a young layer feels unpleasant. In this case, the image quality adjustment parameter and the sound quality adjustment parameter can be changed to correspond to the young tier to the old tier.

The video/audio playback device 1 according to embodiment 1 adjusts a plurality of image quality adjustment parameters to adjust the image quality, and adjusts a plurality of sound quality adjustment parameters to adjust the sound quality. Therefore, it is possible to perform image quality adjustment and sound quality adjustment that faithfully reflect the content of the common parameter and are suitable for the viewer.

[ embodiment 2]