Molten pool image acquisition system based on spatial filtering technology

• Main Authors: CHU FENGHONG, WEN HAO, HUANG QIONG, ZENG JUNDONG, BIAN ZHENGLAN
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The utility model discloses a molten pool image acquisition system based on spatial filtering technology, comprising an image acquisition module comprising a neutral density dimmer, a band-pass filter and a camera lens, the band-pass filter and the neutral density dimmer are sequentially arranged in front of the camera lens; the image processing module is connected with the image acquisition module and comprises a high-pass spatial filter, and the high-pass spatial filter is placed at the rear focal plane of the camera lens; and the camera module is connected with the high-pass spatial filter. The device can effectively remove high-frequency noise and interference in the molten pool image, enhance the edge of the molten pool and remove random noise in the molten pool image, and has the advantages of being high in reliability, low in cost, capable of effectively removing interference noise in the welding process, capable of obtaining a clear molten pool image and the like. 本实用新型公开了一种基于空间滤波技术的熔池图像采集系统，包括：图像采集模块