IMAGE PROCESSING FOR CHANGE DETECTION
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United States of America Patent
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Issued Date -
Dec 1, 2011
app pub date -
Jul 16, 2007
filing date -
Jul 17, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Image data defining a reference image and each input image in a sequence of images is processed to detect changes in the images. A value is calculated for each pixel defining the spatial rate of change of homogeneity of the image data at that pixel. Different regions of pixels in each image are selected and the values within each region are concatenated to define a vector for each region. The vectors are then processed to compare corresponding regions in each image. The results of the comparison define a correlation map identifying areas in the images in which change has occurred.
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