Patent ID: 7130464
Filing Date: 2006-10-31
Classification: G06T,H04N

Abstract:
1. An image processing apparatus for performing image-processing on image data which is formed of a predetermined number of pixel data obtained by an imaging device including a predetermined number of pixels and having a time integrating function, and for calculating a mixture ratio indicating a mixture state of the pixel data of a plurality of objects in the real world, said image processing apparatus comprising: pixel-data extraction means for extracting, based on a motion of a foreground object, which serves as a foreground of the plurality of objects, a plurality of mixed pixel data which are the pixel data of a predetermined number of consecutive frames in which the plurality of objects are mixed, and also for extracting, based on a motion of a background object, which serves as a background of the plurality of objects, background pixel data which is the pixel data formed of the background object and which corresponds to the mixed pixel data, the background pixel data being extracted from a frame different from the frames in which the mixed pixel data is present among the predetermined number of consecutive frames; relational-expression generating means for generating relational expressions for the mixed pixel data and the background pixel data corresponding to the predetermined number of consecutive frames based on the extracted mixed pixel data and the extracted background pixel data; and mixture-ratio detection means for detecting a single mixture ratio corresponding to the predetermined number of consecutive frames based on the relational expressions.