最新刊期
卷 2 ， 期 3 ， 1997
- 摘要：This paper describes the forming of iconic informatics.Then the current main research reults and progress in icomc informatics at LIESMARS are reported briefly.2672|147|0更新时间：2024-05-08
- 摘要：Motion estimation and motion compensation(ME/MC)is the core technology oI motion picture coding. A new motion estimation scheme based on a novel matching criterion.Restrictive Conditional Interframe Difference(RCID).is proposed in this paper. The new matching criterion overcomes the shortages of MAID criterion and has the equivalent computing complexity with MAD. The theory analysis and experimental results show the ellectiveness and superiority of RCID criterion.关键词：Video coding;motion estimation;Match criterion3144|143|0更新时间：2024-05-08
- 摘要：A Novel Video Coding Scheme with conditional interframe replenishment(CFR) algorithm based on DCT frequency domain is proposed in this paper. Utilizing the characteristics of DCT and visual perception of human, this DCT-based CFR algorithm can encode and decode motion pictures quickly and efficiently. Its compression ratio and reconstructed picture quality are similar with DCT/MC coding scheme such as H.261 and MPEG but with much lower complexity. Both simulation and practical video communication application have shown that this algorithm has high performance and ease of implementation. Because of its low computing complexity, it can be real-time realized by PC software. It can also work with H.261/MPEG by replacing ME/MC module(the motion vector is fixed as zero) after some little modifications on coding scheme. This DCT-based CFR algorithm and the video coding scheme are very suitable for low cost full PC software videophone, video conference and multimedia communication system.7326|2442|0更新时间：2024-05-08
- 摘要：In account for the strong randomness .weak local correlation and extra-high data acqusition rate of the remote sensing image.a multi-mode adaptive quantization image compression method suitable for remote sensing image is presented in this paper. The basic idea of the method is to code each image subareament using different quantization level based on the local texture complexity. This method is easy to implement and has better restored image quality compared with the JPEG’s关键词：Image compression;Adaptive quantization;Remote sensingimagc3046|124|0更新时间：2024-05-08
- 摘要：This paper presents a new image fusion scheme based on multiresolution analysis of Wavelet theory for Remote Sensing imagery.An area-based maximum variance selection rule and a con-sistency detection are used for feature selection of subbands at dillerent scale,and gray computation with weighting factor is accomplished for base-bands at the coarsest resolution.Experimental results including the fusion of black-white aerial imagery and Landsat(TM)imagery,Landsat and SAR images are presented in the paper.Compared with the pixel averaging method,the proposed scheme is more reliable and capable of adaplability.关键词：image fusion;wavelet;Multircsolution analysis;Consistency detection3038|142|0更新时间：2024-05-08
- 摘要：General Fuzzy Operator(GFO)in edge detection proposed in[1] by Chen wufan is a great innovation in\nthe traditional theory and realized technique of image edge detection. It is superior to any classical edge detection in the higher precise location and the faster edge detection.However,some parameters in the the approach have to be empirically selected .which is not convenient in practice.An empirical equation is quation is given this paper based on experiments.Then,the parameters can be automatically and efficiently selected with this equation.关键词：General Fuzzy Operator;Boundary parameter;Adjustable parameter;Empirical equation2248|141|0更新时间：2024-05-08
- 摘要：In this paper.the hardware designing priciple and the soltware designing characteristic of tracking system of real-time dual-mode image used for visable or inlrared light are introduced The features of the mass centroid tracking algorithm.the characteristic matching algorithm and the dillerential tracking algorithm have been discussed. On the basis of these .the dual-mode conlidence and fulion tracking algorithm are presented .and analysed. Finally.the controlled tactics of the servo system is briefed关键词：Image guidance;Dual-mode;Image tracking;Charactcristic matching2864|144|0更新时间：2024-05-08
- 摘要：This paper describes a multi-electrode capacitance tomography system used for two component flow imaging.When the component distribution of the flow is given.the capacitance between any two electrodes can be calculated through a finite clement method.Then the sensitivity distribution of the system can also be determined by this method.The image of the flow component distribution is reconstructed by using a back-projection algorithm from the calculated sensitivity distribution.关键词：Capacitance tomography;Finite clement method;Back-projection2522|132|0更新时间：2024-05-08
- 摘要：A new method for generating image correlated noise is proposed. Correlated noise is obtained by filtering white noise.The expression of correlated noise's autocorrelation function and the relationship between the parameter of filter and the correlation length of correlated noise are studied. Experiments show that using this new method can generate image correlated noise successfully.关键词：White noise;Correlated noise;Gauss lowpass filter;Correlation length2573|150|0更新时间：2024-05-08
- 摘要：In this paper.a fast algorithm and parallel algorithms for template matching in image edge detection are established.Using PVM .the distributed algorithm is accomplished.This lays a solid foundation for Massively Image Parallel Processing.2370|182|0更新时间：2024-05-08
- 摘要：According to the gray properties of B-mode image,relative gray grade of pixel was selected as fuzzy feature. On the basis of gray linear transformation and median filtering.fuzzy enhancement of B-mode image was realized by using fuzzy algorithm. Experimental results show that remarkable improvement of enhancement effect was obtained by adjusting fuzzy parameter.关键词：B-mode image;fuzzy enhancement;Medicine2489|142|0更新时间：2024-05-08
- 摘要：This paper first of all based on the wavelet pyramidel decomposition of the images.the distributed properties in the data of each subband are analyzed in detail. According to these properties .a modified block-partition method and a large number-determined method used in vector quantization are presented. Then the thermal image compression using wavelet transformation has been studied.关键词：Wavclct;Image-compression;vector quantization;Thermal-image2265|153|0更新时间：2024-05-08
- 摘要：For performing the real time wavelt transform with diffcrrcnt wavelet basis,one design of FYGA implemention (Field Programmable Gate Array)for the wavelet transform is introduced in this paper.关键词：wavelet transform;FYGA;Field programmable gate array2624|155|0更新时间：2024-05-08
- 摘要：Stereo display is one of the key technologies of Virtual Reality(VR).and also the lowest requirement of VR system.This paper introduces a new stereo display method on the general PC.Through the LCD shutter glasses .people can see stereo picture and animation on CRT screen,and the effect is satisficd.关键词：virtual reality;stereo display;Stereo animation;Stereo vision model2528|154|0更新时间：2024-05-08
- 摘要：Combined with shape-spccilic points and Hausdorff Distance,a new shape matching measurement based on the concept oI shape subcenters is given here.It is used for shape recognition under rigid transformations,brings about great improvements on precision.while decreases calculating cost very sharply. The test shows it's more effective and faster than any old method.关键词：Hausdorff distance;Shape-specilic points;shape recognition;Image processing2629|154|0更新时间：2024-05-08
- 摘要：This paper presents the data f1ow model oI GIVE.a general ViSC platlorm developed by us.From the view of Graph Theory.we discuss this model in detail with unified and abstract concepts. Finally we discuss the implementation of this model.关键词：ViSC;Platlorm;Data flow model2457|127|0更新时间：2024-05-08
- 摘要：The 3-d surface redution new Algorithm in this paper has advantage of keeping detail.fidelitv and fast speed. For speed.the Source Propagation Method is suggested to form near planar set quick1y. The characteristics of keeping detail and fidelity can be controlled. This Method is normal and unified,it can get wide applications and good result.So it is of great valueto use.关键词：Graphical simplication;Computer graphics;Polygon reduction;visualization2644|137|0更新时间：2024-05-08
- 摘要：A widely used isosurlace construction algorithm is called Marching Cubes Algorithm (MC).which produces triangle-represented isosurlace from volume data. The algorithm given in this artic1e solves a problem in MC and gives half-cut triangles in a volume data with no obvious quality deduction. The algorithm is called Marching Boxes Algorithm.2082|148|0更新时间：2024-05-08
- 摘要：Accurate measurement of object perimeters from digital images is one of the important and fundamental tasks of image analysis and computer vision.In this paper,a new accurate and fast perimeter estimator based on eight-connection MSC (m-Sampling and Classification)was presented. Estimation errors were analyzed and predicated .To prove the performance .a comparative experimental study about the exsiting methods and our new method was carried on a digital object datasets including circles with different diameters and rectangles with different edge lengths. Satisfactory results were obtained.关键词：Image analysis;Digital image;Morphological measurement2154|141|0更新时间：2024-05-08
- 摘要：Battlelield scene simulation is of signilicance in the development of weapon equipment and the military training. In this paper.the characteristics of battlefield scene simulation and the demand for relevant techniques of multimedia is introduced. The battlefield scene simulation system based-on SGI ONYX/RE2 is described.关键词：Battlcfield sacene;simulation;multimedia2202|138|0更新时间：2024-05-08
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