Material volume high-precision detection method based on laser scanning imaging

The invention discloses a material volume high-precision detection method based on laser scanning imaging. According to a volume high-precision measurement system for materials conveyed by a conveyorbelt at a constant speed, the hardware includes a high-definition camera, a line laser emitter and a high-precision calibration plate. The system structure adopts a triangular structure composed of the laser emitter, a camera and a material, that is, line laser is vertically irradiated on the surface of the material, and the high-definition camera performs photographing at a fixed tilt angle; according to the high-precision calibration plate placed at a scanning line, perspective transformation of an image is realized through automatic recognition of four dots on the calibration plate, and thesize information of the image is acquired; through automatic recognition of a reference triangle standard, the real-time reference position is acquired; subtraction between the laser scanning line and the reference line deter