| 摘要 |
<p>PURPOSE:To improve the detection accuracy of a specific small part by converting light information on an image and detecting a feature index in a prescribed part, detecting the specific small part in a set area and its position, and supplying a signal corresponding to the position to an objective electric device. CONSTITUTION:A television camera 3 and an illumination lamp 4 which illuminates the face part of a driver are fixed integrally on a panel so that their up-down and right-left directions are adjustable. The illumination lamp 4 is turned by an illumination controller 19 and its brightness is controlled. A camera 3 supplies picture element synchronizing pulses to an A/D converter 18 and also supplies frame synchronizing pulses, etc., to a microprocessor 6 through a interface 17. The microprocessor 6 is connected to another microprocessor 8 which performs arithmetic operation for various decisions, connected to a RAM 11, etc., for storing binary data of one frame temporarily, and also connected to electric devices 20-30 to be controlled and the illumination controller 19. In this constitution, the prescribed part is sectioned into small areas, which are converted into binary data to accurately detect feature indexes even if the lighting is irregular.</p> |
