阅读说明：本技术 一种星敏感器星点像斑检测方法及系统 (Star sensor star point image spot detection method and system ) 是由 杨飞 于 2021-06-16 设计创作，主要内容包括：本发明公开了一种星敏感器星点像斑检测方法及系统,在星敏感器所成图像上进行扫描,首先检测当前扫描像素灰度邻域灰度最大值的像素位置,其次计算当前扫描像素邻域背景的灰度均值和灰度标准差值,进而得到自适应阈值,最后根据自适应阈值分割星点像斑灰度图像,满足一系列检测标准情况后则检测出星点像斑,逐行或者逐列扫描完所有像素位置后,检测出所有的星点像斑。本发明的优点是：实现简单,可以获得精准的局部阈值,避免整帧图像背景灰度分布不均匀造成的检测阈值失效造成的漏检和虚警情况可以准确筛除背景图像中的孤立噪声,并且检测出满足要求的星点像斑,获得更精准的分割阈值,使用的星点像斑检测标准逻辑简单,利于FPGA逻辑实现。(The invention discloses a star point image spot detection method and a star point image spot detection system for a star sensor, wherein scanning is carried out on an image formed by the star sensor, the pixel position of the maximum value of the gray level neighborhood of a currently scanned pixel is detected firstly, the gray level mean value and the gray level standard difference value of the background of the neighborhood of the currently scanned pixel are calculated, so that an adaptive threshold value is obtained, the gray level image of the star point image spot is segmented according to the adaptive threshold value, the star point image spot is detected after a series of detection standard conditions are met, and all the star point image spots are detected after all the pixel positions are scanned line by line or line by line. The invention has the advantages that: the method is simple to realize, can obtain an accurate local threshold, can accurately screen out isolated noise in the background image under the conditions of missing detection and false alarm caused by detection threshold failure due to uneven background gray level distribution of the whole frame image, can detect out the star spot meeting the requirements, obtains a more accurate segmentation threshold, has simple detection standard logic of the used star spot, and is beneficial to the realization of FPGA logic.)