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Real-time sensing and detecting of underwater weld position is a key technique. Laser vision sensing is a good-prospect detecting method. Therein welding image processing and feature recognition are important parts. Noise features of underwater weld image in different water conditions are described. Underwater V-groove weld image pre-processing is discussed. Mean Shift algorithm application to underwater...
A method of the recognition of electricity equipments operation state (EEOS) is put up based on support vector machine (SVM). First Chinese character or number operation state images of electricity equipments are segmented with C-mean clustering. Then, feature vector of operation state image of electricity equipments is extracted using K-L transform. At last, classification method of SVM for state...
In this paper, an appearance-based modeling of the environment is presented for the sake of mobile robot localization. The model allows perception and recognition within a topological context. Highly descriptive SIFT is used to extract local features from visual data acquired from an indoor environment. A method is developed to select those features, which are best for localization using a probabilistic...
This study proposed to use wavelet transfer to acquire image hue and value as image features, and use Back-propagation Neural Network Fuzzy Clustering analysis to recognize type of textile texture. Firstly, the RGB color space of original color image is transferred to HSV color space; secondly, wavelet transfer is applied to obtain vertical, horizontal and diagonal images of hue and value, and compute...
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