最新刊期
卷 1 ， 期 3 ， 1996
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- 摘要：Based on theoretical and experimental study of Canny's optimal edge detection operator, we combine it with the Wiener filter and propose an efficient improved method on detecting noisy edges.2384|76|0更新时间：2024-05-08
- 摘要：The separability of two pattern classes can be measured by the divergence for two Gaussian distributions. Because the divergence is invariant under the linear transformation we can extract "good" features for separating two patterns via Karhunen-Loeve transformation. It is shown that the divergence is only dependent on two of n eigenvalues. One property of a "good" dichotomy is that each feature should be effective for classification. Thus, a criterion function is proposed. This algorithm, which is called as sample exchange algorithm, is convergent and it is a reasonable unsupervised clustering method for classification.2465|59|0更新时间：2024-05-08
- 摘要：Based on the analysis of the properties of the fractal block--coding, the authors point out that the special fractal block-coding is capable to the high level resolution details from the low level resolution details. Then, a simple decoding method in which the decoding iteration needs only finite steps is presented. According to this idea, we show a more general method that constructs the high level resolution details from the low level resolution details.2478|52|0更新时间：2024-05-08
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- 摘要：UP to now, there is no any practical and available method to assess the influence of image compression on the image measurement quality. This paper proposes a reliable method which not only agrees with the assessment criterion of the visual effect but also can quantitively get the geometrical position distortion under the influence of image compression. Therefore it is suitable for high precision digital photogrammetry and other high precision digital image processing.关键词：Image compression;Image matching;Digital image processing;Quality assessment of image2356|40|0更新时间：2024-05-08
- 摘要：The multifractal growth process of the SEM images of catalyst surface is studied using fractal and multifractal theory. Fractal dimension and multifractal singularity spectrum are very important quantitative parameters describing fractal measures. They also provide a new approach for measuring the sensitivity of catalyst. This work provides a new technique for designing active catalyst.关键词：Fractals;Multifractals;Multifractal singularity spectrum;Catalyst surface2436|59|0更新时间：2024-05-08
- 摘要：Virtual studio technique is bringing a revolution in TV and film production. It utilizes 3D virtual scene made by computers as background and combines it with the foreground images of actors in studio in real time. It makes the background design very economic and without phySical constraints. Actors can move freely in the 3D virtual scenes. The new technique is taking the TV production into a new area关键词：irtual studio technology, 3D virtual scene,3074|57|0更新时间：2024-05-08
- 摘要：This paper is aimed at describing how Walsh Functions are generated with evolution by using bi-section techniques and discussing the basic properties of Walsh Functions from the evolution point of view.3011|46|0更新时间：2024-05-08
- 摘要：A brief introduction to computer graphics and graphics engineering is given, and the relationship between.graphics and image engineering is also described in the paper. Based on the current status of the reseaarch on grswhics engineering as well as the distribution of related publications is China, we selected nearly a hundred refrences from around ten important Chinese journals published in 1995 and classified these references into different categories according to their contents. We hope that the paper could provide readers withja;general and up--to-date overview of development of graphics engineering in China,and also a convenient means of literature searching for graphics techniques.关键词：computer graphics;graphics engineering;graphics processing;Image synthesis2526|64|0更新时间：2024-05-08
- 摘要：he wide uses of computer color terminals provide big impactos to visual computing. Thispaper discusses and analyses the problem of color model selection in visual computing enviroments. It Proposes a selection methodology of required colors which makes use of human,intuition of man-machine interactions.关键词：olor model;Visual computing;Man-machine interaction;Human factor computer color terminal3154|55|0更新时间：2024-05-08
- 摘要：his paper presents the hardware design as well as drive and application software of multimedia remote control card, This card manages the multimedia equipments by infrared remote control and telephone to build the integrated multimedia system2709|64|0更新时间：2024-05-08
- 摘要：ummary of methods for video classification and indexing is given in this paper. An adaptive algorithm is proposed and a method using color trade-off between object and background is also suggested to video indexing. The time-cost for adaptive algouth is dependent on the amount of change between cosecutine frames. For most of neighbor frames, the number of local regions used for classification is very small. Experimental results show that the proposed methods for video classification and indexing are fast and accurate.关键词：Video classification;Video indexing;adaptive classification;Color segmentation2823|47|0更新时间：2024-05-08
- 关键词：parametric design;Detained auxiliary line;Entity-elements hanged;Dimention-driven2190|44|0更新时间：2024-05-08
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