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In the process of producing copper bar, because of the cast copper billet, rolling equipment, rolling process and other reasons, the surface of copper bar appear some defects such as crack, scarring, roller printing, scratches, holes, scales, pitting, and so on. These deficiencies not only affect the appearance of the product, but more importantly reduce the product's corrosion resistance, abrasion...
The optical flow is widely used in detection and dynamic analysis of moving objects, but it has the heavy computational burden, so it has not been able to in the real-time progress needs. Cellular Neural Network is a kind of neural network with outstanding image processing capabilities, and can be utilized in real-time applications. This paper presents an optical flow analysis method based on CNN,...
Gabor filter responses are general purpose features for computer vision and image processing and have been very successful in many application areas, for example in bio- metric authentication (fingerprint matching, face detection, face recognition and iris recognition). In a typical feature construction, filters are utilised as a multi-resolution structure of several filters tuned to different frequencies...
The paper focuses on the development of a vision-based control system for a tele-operated MEMS probe station. A prototyping system architecture was designed with a vision-based micromanipulation system for micro-assembly. The primary goal of this micro-assembly probe station is to perform basic and advanced assembly tasks, which can be used in prototyping of MEMS devices. The architecture includes...
Summary form only given. Models of the biological vision process have influenced the concepts and realizations of technical image processing since 40 years: The results of Hubel and Wiesel have been used to structure the process of image interpretation into layers corresponding to the "receptive fields" to do preprocessing, feature extraction and classification. Unfortunately the performance...
The methods to improve the robustness and adaptability of arc welding robots are presented. Image processing algorithm for feature extraction from structured light images of weld seam is discussed in the case of a large amount of strong reflection, arc light and splash disturbance. The processes consist of defining target region, selecting adaptive threshold and extracting feature points. Then a novel...
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