Aiming at the problems of low efficiency,slow speed,fatigue,and subjective influence of manual visual inspection of defects in the industrial production of LED chips,this paper studies and designs a set of rapid detection system for LED chip de-fects,and propose an LED chip defect recognition algorithm based on multi-angle and multi-direction fast convolution,regional statistical feature quantity,and support vector machine classification.Based on QT and Opencv,a rapid detection and classifica-tion system for LED chip defects was developed,and the hardware platform for the LED chip detection system was built to realize real-time online defect recognition and automatic sorting of LED chips.Based on the developed LED chip defect sorting system prototype,the LEDchip was tested for defect sorting.
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