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Wood defect detection has an important influence on the automation of wood industry. In view of the complexity of wood defect segmentation, this paper proposes the hybrid algorithm of genetic algorithm and particle swarm optimization algorithm. Firstly, the contrast of the image is enhanced by the linear transformation function. Then, applying genetic algorithm and particle swarm-genetic hybrid algorithm...
According to the needs of dim and small targetdetection, a new detection algorithm based on wavelet transform and image fusion is put forward in the paper. In this algorithm, firstly, the original image is decomposed and reconstructed by wavelet and it is separated into a low frequency image and some high frequency images., secondly, the low frequency image is removed and the high frequency images...
This paper presents a novel method for detection and recognition of glass defects in low resolution images. First, the defect region is located by the method of Canny edge detection, and thus the smallest connected region (rectangle) can be found. Then, the binary information of the core region can be obtained based on a specific filter. After noises are removed, a novel Binary Feature Histogram (BFH)...
This paper presents a novel dissolve detection method based on accumulating histogram difference (AHD) and support points. The proposed algorithm can detect fades and dissolves and avoid the false detection caused by the flashlight. In terms of recall, precision, computational complexity per frame and computational complexity per pixel, we compare our method with the Twin algorithm and the Two Measures...
In order to inspect the cold rolling strip main surface defects in while product line running normally and control manufacturing process more efficiently, a novel cold rolling strip surface defect on-line inspection system is designed. Modularization design idea is adopted, the whole system is made up of light source module, image collection module, defect image processing module and server module...
This paper proposed a real-time image processing system based on multi-core processor, which is used in the cold rolling surface defect inspection system for enhancing system's real-time performance. Based on analyzing the application demand of inspection system image processing module, the image processing system is designed that is the combination of RT-Linux real-time operation system and multi-core...
This paper presents a approach of SIFT feature points matching for image mosaic. This method combines improved K-means clustering and simulated annealing algorithm to match SIFT feature points. Firstly, high robust points are extracted by SIFT algorithm; Secondly, cluster with the initial centers obtained by density function, and then optimize the results of clustering which are used as initial results...
In this paper, a new approach to detect masses in digital mammograms is presented. Firstly, preprocessing procedure is carried out to enhance the contrast between mass and surrounding tissue based on the algorithm of exponential transformation, which maps a narrow range of high grey-level values into a wider range of output levels. After preprocessing, pyramid segmentation algorithm is used to segment...
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