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The skew-correction of scanned document image is a necessary step undergone before some processing. For the purpose of practical, robust, real-time of the algorithm, this paper presents a new skew-detection algorithm that based on the gray projection cyclostyle matching of Document Image. The algorithm, which is based on the analysis of gray scale projection curves of horizontal and vertical direction...
Three-dimension scene simulation technology of virtual environment maybe widely applied in many fields such as city planning, tourist industry and virtual battlefield. The technique has been applied to the research of ldquodigital campusrdquo which provides a new research topic in the todaypsilas world. In this paper, in allusion to the problem of digital campus GUI, some key technologies about how...
This paper presents an improved image retrieval algorithm which based on the gray projection cyclostyle matching to overcome the shortcomings of conventional content-based image retrieval methods. The algorithm based on the analysis that gray scale projection curves of horizontal and vertical direction of the images fully reflects the feature of gray distribution in the corresponding direction, then...
Highly detailed geometric models are rapidly becoming common-place in computer graphics. But sometimes it is often desirable to use approximations in place of excessively detailed models to control processing time. This paper introduces a surface simplification algorithm that based on edge-collapse. The algorithm uses quadric error metrics to confirm the position of new vertex in order to control...
Most visual simulation systems are developed based on Vega. They are unable to make smooth operation because of large volume of data. In this paper, some key techniques about how to optimize the 3D scene model are proposed in order to improve the operating efficiency of the visual simulation system. Including simplifying the 3D model, cutting down the data stream of texture, techniques for creator...
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