The line laser stereo camera uses the principle of triangulation to output the point cloud data, length, width and height data and volume data of the express parcels in real time through the built-in high-precision image processing algorithm and volume measurement algorithm. The camera is equipped with a high-power laser module and a narrow-band filter, which shields visible light interference while greatly improving the dynamic detection range of the device. It is suitable for dynamic volume measurement scenarios such as logistics and warehousing.