Application of binocular structured light 3D measurement technology in refrigerator volume measurement

In view of the difficulties of volume measurement in the evaluation of refrigerator energy efficiency grade, based on the analysis of the principle of each measurement method, combined with the characteristics of refrigerator volume measurement, the technology combining structured light and binocular vision measurement was used. The structured light adopts speckle structured light. After the scanner is calibrated, the data is collected. After the data is denoised, smoothed, and edges are extracted, the volume is calculated. The results show that the structured light 3D scanning measurement accuracy meets the measurement requirements, but there are also problems such as insufficient depth of field measurement of the scanner at the turning point of the refrigerator, and the need to paste a large number of landmarks in the area without obvious features to achieve the stitching of the measured images.