Abstract
Many TV cameras have been often used as machine vision systems for harvesting robots. However, it was difficult to use camera under sunlight because of fluctuation of illumination intensity and color temperature of the sunlight. In this presentation, distance measurement and recognition of asparagus were conducted by using near-infrared laser rangefinder in night and day time, and were compared with stereo vision using TV cameras. As a result, it was found that measurement accuracy was not much affected by fluctuation of illumination intensity and color temperature and measurement errors were within about 10mm. Success rate of recognition of target asparagus was about 80%.
