Research of spatial high-pass filtering algorithm in particles real- time measurement system

摘要

With the application development of CIMS, enterprises have the more need of the CAQ systems during the process of flexibility and automation. Based the means of computer-based vision technology, Automated Visual Inspection (AVI) is a non-contact measurement mean synthesizing the technologies such as image processing, precision measurement. The particles real-time measurement system is the system which analyzes the target image obtained by the computer vision system and gets the useful measure information. In accordance with existing prior knowledge, the user can timely take some measures to reduce the floating ash. According to the analysis of the particle images, this paper researches the image high-pass filter means, Gradient arithmetic, with characteristics of images. In order to get rid of the interference of background and enhance the edge lines of particles, it uses the two directions kernel to process the images. This Spatial high-pass filtering algorithm also helps to conduct the ensuing image processing to obtain useful information of floating ash particles.