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In this paper, to provide a robot with information relative to structure of its environment, we propose a method to recognize types of structural corridor landmarks such as T-junction, L-junction, end of the corridor, using vanishing points-based visual image features and hidden Markov models. Several experimental results are illustrated to demonstrate the validity of the proposed approach in a real...
Many different interest point detectors have been proposed with a wide range of definitions for what points in an image are interesting. Corner points are interesting as they are formed from two or more edges and usually define the boundary between two different objects or parts of the same object. Interest points are generally more abundant in real images than straight edges and are considered to...
In this paper, we propose an algorithm to track welding line of TiG welding in welding pipe or tube. The proposed algorithm consists of detecting edge, binarization, segmenting target area, locating welding torch and locating welding line. Firstly, we use prewitt operator to form the edge of image which is acquired from industrial camera. Secondly, we achieve the binary image by using maximal variance...
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