Laser spot image acquisition and processing based on LabVIEW

摘要

With the wide application of laser technology in various fields, how to quickly and quantitatively evaluate the characteristic parameters of laser spot becomes a hot issue in laser technology research. In this paper, based on the virtual instrument LabVIEW platform, the image is captured by USB camera, the NI-IMAQdx module is used for programming.Through image acquisition, gradation transformation, filtering processing, threshold segmentation and edge detection, the pseudo-color transformation display, centroid, long and short axis values and ellipticity of laser spot intensity are obtained, the corresponding display level is 0-256, and the working wavelength range is 400 nm-1100 nm, which satisfies the testing and analysis requirements in most current environments.