关键词: LED芯片, 图像分割, 形状匹配, 搜索角度, 视觉伺服

Abstract: LED chip positioning is the key step in LED chip detection, sorting after the packaging process, its positioning speed and accuracy directly determines the LED chip detection equipment production efficiency. In order to improve the accuracy of chip positioning, a feedback compensation technique based on visual servo is proposed to compensate the chip positioning error effectively. In order to improve the speed of chip positioning, this paper presents a shape matching optimization algorithm according to the characteristics of the LED chip, which is based on the visual servo system. By reducing the match in the process of matching the area and the search angle, it effectively compensates for the time consumed by visual motion compensation. Through the above two aspects, this article improves the LED chip positioning accuracy and speed and it meets the LED chip high precision and high-speed positioning needs.

Key words: LED chips, image segmentation, shape matching, search angle, visual servo