Patent ID: 7106348
Filing Date: 2006-09-12
Classification: G06T

Abstract:
1. An object extraction apparatus for extracting an object portion by removing an undesired portion from an object image obtained by shooting an object of interest, comprising: region segmentation means for dividing said object image into a plurality of regions; and extraction means for identifying and extracting the object portion in said object image by a process of consolidating information of each pixel in said object image for each said region, wherein said extraction means comprises difference processing means for carrying out a difference process between a background image obtained by shooting only a background of said object of interest and said object image; mean value obtaining means for obtaining a mean value of absolute values of difference obtained by said difference process in said each region, and threshold value processing means for comparing said mean value of absolute values of difference in said region with a predetermined value to extract a region having said mean value of at least said predetermined value as the object portion.