发明名称 REDUCTION OF CFAR FALSE ALARMS VIA CLASSIFICATION AND SEGMENTATION OF SAR IMAGE CLUTTER
摘要 The classification and segmentation system of the current invention makes use of information from pixels of an image, namely the magnitude of the pixels, to run specific analytics to classify and segment the image pixels into different groups. This invention includes a system for processing an image, the system including an input device, a processor, a memory and a monitor. The input device is configured to receive image data, where the image data includes pixels and each pixel has a magnitude. The memory has instructions stored in it that, when executed by the processor, cause the processor to run calculations. The calculations include: calculating the log-magnitudes from the magnitudes of at least a plurality of the pixels, calculating standard deviations of the log-magnitudes for subsets of the plurality of pixels and compute an integral of the standard deviations over a desired range. The pixels are classified into different groups based on a value of the integral relative to one or more integral values. In one embodiment, a monitor is configured to display a threshold image, wherein the threshold image includes the different groups of pixels.
申请公布号 US2014241639(A1) 申请公布日期 2014.08.28
申请号 US201313776586 申请日期 2013.02.25
申请人 RAYTHEON COMPANY 发明人 Gonzalez Johan Enmanuel;Ezekiel Albert
分类号 G06K9/62 主分类号 G06K9/62
代理机构 代理人
主权项 1. A system for processing an image having an image sensor configured to collect image data representing different terrain types comprising: an input configured to receive the image data comprising pixels wherein each pixel has a magnitude; a processor; a memory, wherein the memory has stored therein instructions that, when executed by the processor, causes the processor to: calculate log-magnitudes from the magnitudes of at least a plurality of the pixels;calculate standard deviations of the log-magnitudes for subsets of the plurality of pixels;compute an integral of the standard deviations over a desired range; and an output configured to send threshold data, wherein the threshold data comprises information representing different groups of pixels classified based on a value of the integral relative to one or more integral values.
地址 Waltham MA US