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Rotation scale and translation invariant (RST-invariant) feature extraction methods play a critical role in optical Chinese character recognition. However, vast majority of them either has a strict constraint of input image, or has a poor performance on discriminating similar Chinese characters. In this paper, a novel method called Sector Projection Fourier Descriptor (SP-FD) is proposed. SP-FD is...
Building energy saving is some means for meeting appropriate indoor thermal environment and improving people's living standards with the least energy consumption. Such as adopting comprehensive energy-saving measures on buildings, improving energy efficiency and making full use of renewable energy. Science and technology is developing rapidly, urban construction and residential construction will be...
Medical Image Retrieval and Classification is very important in Computer-Aided Diagnosis. Feature extraction is one of the most important techniques in content based image retrieval and classification. How to extract low-level features which reflect high-level semantics of an image is crucial for medical image retrieval and classification. In allusion to this issue, there proposed a method using edge...
A solving method with ant colony system for irregular parts nesting was put forward. A method for an irregular part's graph coding and pretreatment was proposed. The proposed method converted the nesting problem into an orthogonal rectangular nesting problem by combining and filling algorithm. By use of remaining rectangle matching and orthogonal accessing algorithm, an automatic nesting system was...
In view of the complex background in the weed detection, the research used the H component under HSI the color model to divide the soil background. Considered the real-time operation, it used the automatic threshold value segmentation method, and carried on the suitable erosion and dilation, realized the weed area and the background area segmentation. The result indicated that it was possible of using...
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