Automatic detection method for laser repair quality of surface defects of fused quartz element

• Main Authors: LIAO WEI, YUAN XIAODONG, ZHANG CHUANCHAO, WANG HAIJUN, ZHAO LINJIE, CHENG JIAN, CHEN MINGJUN, YIN CHAOYANG, ZHENG WANGUO
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2022
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention discloses an automatic detection method for fused quartz element surface defect laser repair quality, relates to the technical field of engineering optics, and is used for detecting the repair quality of fused quartz element surface defects. According to the technical key points, the method comprises the following steps: changing the distance between a camera and an element, and collecting a plurality of images containing repair pits corresponding to different focusing states; carrying out depth-of-field fusion on the plurality of images in different focusing states to obtain a clear image containing a repair pit; and inputting the clear image containing the repair pit into a pre-trained residual damage detection model to obtain a detection result. According to the method, automatic acquisition of repairing pit images of different sizes is realized in a mode of combining single-frame photographing and scanning photographing, a complete panoramic depth image of a repairing pit is obtained by usin