| 摘要 |
PROBLEM TO BE SOLVED: To detect a human body discriminated from another heat source by binarizing image signals from a thermal type infrared matrix sensor detecting part, by carrying out labeling for detecting a heat source as a prospective human body, and by carrying out labeling for a heat source within an in-area pixel part. SOLUTION: Pixels of a thermal infrared matrix sensor detecting part 1 are divided into an end pixel part 1 an in-area pixel part 12. Pixel signals from the detecting part 1 are binarized (31), and a heat source is extracted. Successive pixels extracted from the pixel part 11 is subjected to an identical leveling process 32 so as to extract a heat source as a prospective human body, and a process of difference 33 between frames of sensor signals from the pixel parts 11 is carried out, and then the signals are delivered to a computing part 36. Meanwhile, the successive pixels extracted in the pixel part 12 are subjected to an identical labeling process 34, and are delivered to the computing part 36. Further, the computing part 33 determines the presence of human bodies, a number and positions thereof. |
