MARKED AREA IMAGE EXTRACTION METHOD, DEVICE THEREFOR AND RECODING MEDIUM RECORDED WITH MARKED AREA IMAGE EXTRACTING PROGRAM

摘要

PROBLEM TO BE SOLVED: To shorten a processing time for extracting a marked area image. SOLUTION: A panoramic image is generated from a still image photographed by a camera 101 at each time and the detected position coordinate, car speed, camera direction, and focal distance by a panoramic image preparing part 107. Then, a marked area candidate is retrieved from the prepared panoramic image by a marked area candidate retrieving part 108, and a still image including the retrieved area candidate is specified, and a range in which the retrieved area is included in the specified still image is specified. Then, the marked area image included in the specified range in the specified still image is extracted by a marked area candidate extracting part 109.