Image processing apparatus, information processing system, and image processing method

• Main Authors: ABE YOSHIHISA, SUMITOMO HIRONORI
• Format: Patent
• Language: English
• Published: 17.09.2013
• Subjects: CALCULATING; COMPUTING; COUNTING; GYROSCOPIC INSTRUMENTS; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS; SURVEYING; TESTING

A technique is provided which can improve the precision of a matching point search with a plurality of images taking the same object where distant and near views coexist. A plurality of first images obtained by time-sequentially imaging an object from a first viewpoint, and a plurality of second images obtained by time-sequentially imaging the object from a second viewpoint, are obtained. Reference regions including a reference point are set respectively in the first images with the same arrangement, and comparison regions corresponding to the form of the reference regions are set respectively in the second images with the same arrangement. One reference distribution of pixel values about two-or-more-dimensional space is generated from the distributions of pixel values about the plurality of reference regions, and one comparison distribution of pixel values about two-or-more-dimensional space is generated from the distributions of pixel values about the plurality of comparison regions. Then, a matching point in the plurality of second images that corresponds to the reference point is detected by using the reference distribution of pixel values and the comparison distribution of pixel values.