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FIRST-IN-FIRST-OUT (FIFO) BUFFERED MEDIAN SCENE NON-UNIFORMITY CORRECTION METHOD

机译:先入先出(FIFO)缓冲中间场景非均匀性校正方法

摘要

A buffered scene-based non-uniformity correction method includes receiving a plurality of frames of video image data from an image detector; determining relative movement of a current image frame with respect to a previous image frame and responsive to a determination of substantial movement, adding the current image frame to a buffer memory sized to store a predetermined number of video frames; averaging pixel values of the frames in the buffer to determine a mean (or weighted mean) value for each pixel of a reference image; determining correction terms for each pixel of the current image frame by determining the difference between the current image frame pixel values and the corresponding reference image pixels; and correcting the current image frame using the correction terms. A scene-based non-uniformity correction system is also disclosed.
机译:一种基于缓冲场景的非均匀性校正方法,包括:从图像检测器接收多帧视频图像数据;确定当前图像帧相对于前一图像帧的相对运动,并响应于确定的实质运动,将当前图像帧添加到缓冲存储器中,该缓冲存储器的大小可存储预定数量的视频帧;对缓冲器中的帧的像素值求平均以确定参考图像的每个像素的平均值(或加权平均值);通过确定当前图像帧像素值与对应的参考图像像素之差,确定当前图像帧的每个像素的校正项;以及使用校正项校正当前图像帧。还公开了一种基于场景的非均匀性校正系统。

著录项

  • 公开/公告号IL214967D0

    专利类型

  • 公开/公告日2012-04-30

    原文格式PDF

  • 申请/专利权人 RAYTHEON COMPANY;

    申请/专利号IL20110214967

  • 发明设计人

    申请日2011-09-04

  • 分类号G06Fnull/null;

  • 国家 IL

  • 入库时间 2022-08-21 17:24:44

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