Patent ID: 9185382
Filing Date: 2015-11-10
Classification: G01B,G01C,G06T,H04N

Abstract:
1. A stereo image processor, comprising a stereo image acquiring section acquiring a stereo image which includes a first image obtained by taking an image of an object by a first imaging system and a second image obtained by taking an image of the object by a second imaging system, an image matching section extracting a first coordinate point included in the first image and a second coordinate point included in the second image by image matching, the second coordinate point corresponding to the first coordinate point, a filter section extracting a first partial image including the first coordinate point from the first image, extracting a second partial image including the second coordinate point from the second image, and generating an output signal sequence based both on (i) values of a sequence of luminance values of respective coordinate points included in the first partial image with an order thereof reversed with respect to coordinates and on (ii) luminance values of respective coordinate points induced in the second partial image, a peak position detecting section detecting a peak position where an output value is maximum in the output signal sequence, and calculating sub-pixel level partial displacement between the first image and the second image based on the peak position.