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This paper presents a design procedure for two-dimensional (2-D) zero-phase IIR notch filters based on the state-space representation of 2-D frequency transformation in the Fornasini-Marchesini second (FM II) model. It will be shown, via several typical image processing examples, that 2-D zero-phase IIR notch filters can be designed more flexibly by utilizing the state-space representation of the...
At present, as a serious social problem, traffic accidents are categorized as minor accidents, general accidents, major accidents and serious incidents, and more attention is paid to the statistics and analysis of traffic accidents rather than the rescue work. In this paper, a new category of vehicle traffic accidents based on vehicle rescue is proposed to immediately dispose traffic accidents. For...
The continuous rigid frame bridge has been applied widely in our country. But in recent years, over-deflection of beam in this bridge has become an serious problem. This may cause the redistribution of displacement and internal force of the whole structure, especially in dynamic load status. A twodimensional pile-soil-bridge model is built up in ANSYS based on a factual bridge. The over-deflection...
To achieve a composite integration of automation system on underground ore transport information and enhance the production efficiency and the management level of the mine, this article uses image processing and pattern recognition technology to establish the information platform of the relationships of crew, vehicles, mountain Pulse number and output.
Many previous image processing methods discard low-frequency components of images to extract illumination invariant for face recognition. However, this method may cause distortion of processed images and perform poorly under normal lighting. In this paper, a new method is proposed to deal with illumination problem in face recognition. Firstly, we define a score to denote a relative difference of the...
In order to protect the copyright of JPEG2000 images, a robust watermark algorithm for JPEG2000 images is proposed. In this algorithm, watermark information is embedded by modifying the wavelet coefficients in pairs after quantization of the original image. On the precondition of robustness, the change is little by especially dealing with wavelet coefficients. Experiment results show that the algorithm...
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