IEEE Transactions on Circuits and Systems for Video Technology
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Volume 8 Issue 2 • April 1998
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Filter Results
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Motion optimization of ordered blocks for overlapped block motion compensation
Publication Year: 1998, Page(s):119 - 123
Cited by: Papers (13) | Patents (4)While overlapped block motion compensation (OBMC) with block matching motion vectors yields better estimation accuracy than standard block matching, these estimates may be significantly improved by optimizing the motion vectors. Optimal motion vectors may be determined by an iterative and computationally intensive process. However, for a low-cost system (e.g., videoconferencing), such an approach ... View full abstract»
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A data-interlacing architecture with two-dimensional data-reuse for full-search block-matching algorithm
Publication Year: 1998, Page(s):124 - 127
Cited by: Papers (52)This paper describes a data-interlacing architecture with two-dimensional (2-D) data-reuse for full-search blockmatching algorithm. Based on a one-dimensional processing element (PE) array and two data-interlacing shift-register arrays, the proposed architecture can efficiently reuse data to decrease external memory accesses and save the pin counts. It also achieves 100% hardware utilization and a... View full abstract»
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Comments on "Fast algorithms and implementation of 2-D discrete cosine transform"
Publication Year: 1998, Page(s):128 - 129
Cited by: Papers (16)This paper shows that using the Loeffler's (see Proc. IEEE ICASSP, vol.2, p.988-91, 1989) one-dimensional (1-D) 8-point discrete cosine transform (DCT) algorithm in Cho and Lee's (see ibid., vol.38, p.297-305, 1991) two-dimensional (2-D) 8/spl times/8-point DCT algorithm will result in an optimal algorithm in the sense of multiplicative complexity theory. View full abstract»
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An adaptive multialphabet arithmetic coding for video compression
Publication Year: 1998, Page(s):130 - 137
Cited by: Papers (5)The hardware implementation issues for an adaptive multialphabet arithmetic coder are discussed. A simple weighted history model is proposed to encode the video data. This model uses a weighted finite buffer to model the cumulative density function of the arithmetic coder. The performance of the weighted history model is evaluated together with several other well-known models. To access, search, a... View full abstract»
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A gamma autoregressive video model on ATM networks
Publication Year: 1998, Page(s):138 - 142
Cited by: Papers (19)Several works have concluded that the number of cells per frame of variable bit-rate (VBR) video teleconference follows a gamma distribution. But few video models meet this characteristics. We propose a novel video model, called first-order autoregressive (AR) gamma sequence, in which random variables are marginally distributed as gamma variables. We give the definition of a GAR model and a simple... View full abstract»
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On the design of selective coefficient DCT module
Publication Year: 1998, Page(s):143 - 146
Cited by: Papers (2) | Patents (1)An innovative selective coefficient discrete cosine transform (SCDCT) architecture is proposed which is designed for selective coefficient computation and straightforward row-column computation. Having these features, the selective coefficient DCT core will fit for various area/speed requirements. It can save the transposition delay to simplify the computation flow of two-dimensional (2-D) DCT and... View full abstract»
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Rate-distortion optimal motion estimation algorithms for motion-compensated transform video coding
Publication Year: 1998, Page(s):147 - 158
Cited by: Papers (51) | Patents (5)Motion estimation and compensation is widely used for exploiting temporal correlation within an image sequence. To find motion vectors that lead to high compression, most motion estimation approaches use a source distortion measure, such as mean-square error (MSE) or mean-absolute error (MAE), as a search criterion. When incorporated into a closed-loop motion compensated (MC) transform video coder... View full abstract»
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An active scene analysis-based approach for pseudoconstant bit-rate video coding
Publication Year: 1998, Page(s):159 - 170
Cited by: Papers (7) | Patents (37)Digital video transmission across the network is now widely used in the Internet community. Visual information transmission will no doubt play an important role in a future national information infrastructure (NII). Very often, however, the channel bandwidth is fixed. Therefore, video coding based on an appropriate bit-rate control is a key to the success of accommodating visual communication in N... View full abstract»
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Motion and disparity field estimation using rate-distortion optimization
Publication Year: 1998, Page(s):171 - 180
Cited by: Papers (19)A rate-distortion framework is used to define a displacement vector field estimation technique for use in video coding. This technique achieves maximum reconstructed image quality under the constraint of a target bit rate for the coding of the vector sequence. The technique may be adapted so as to limit its smoothing effect to homogeneous areas and avoid highly textured areas and edges. Use of thi... View full abstract»
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Global motion estimation in model-based image coding by tracking three-dimensional contour feature points
Publication Year: 1998, Page(s):181 - 190
Cited by: Papers (9) | Patents (1)A video coding method called model-based image coding has attracted much attention as a potential candidate for low bit-rate visual communication services. This technique reconstructs the facial image with a preknown 3D human face model and its received model motion parameters. The parameters of the head motion are mainly divided into two parts: global motion parameters describe the rigid movement... View full abstract»
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Color image compression and limited display using self-organization Kohonen map
Publication Year: 1998, Page(s):191 - 205
Cited by: Papers (38) | Patents (3)Several methods have been proposed to do color quantization for limited color displays. Self-organization of Kohonen feature maps (SOFM) is a very useful tool for data clustering. By extracting a special butterfly-jumping sequence from an image, a neural network was fed in that sequence of image data for SOFM training, and a fairly good color table was present to represent that image. The peak sig... View full abstract»
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Lattice labeling algorithms for vector quantization
Publication Year: 1998, Page(s):206 - 220
Cited by: Papers (4) | Patents (5)Labeling algorithms for construction-A and construction-B lattices with respect to pyramid boundaries are presented. The algorithms are developed based on relations between lattices and linear block codes as well as on transformations among several specifically defined lattices and their translations. The mechanism for the construction of these algorithms can be considered as an extension of that ... View full abstract»
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Detection and correction of transmission errors in JPEG images
Publication Year: 1998, Page(s):221 - 231
Cited by: Papers (55) | Patents (1)The detection and correction approach to transmission errors in JPEG images using the sequential discrete cosine transform (DCT)-based mode of operation is proposed. The objective is to eliminate transmission errors in JPEG images. Here a transmission error may be either a single-bit error or a burst error containing N successive error bits. For an entropy-coded JPEG image, a single transmission e... View full abstract»
Aims & Scope
IEEE Transactions on Circuits and Systems for Video Technology (TCSVT) covers the circuits and systems aspects of all video technologies. General, theoretical, and application-oriented papers with a circuits and systems perspective are encouraged for publication in TCSVT on or related to image/video acquisition, representation, presentation and display; processing, filtering and transforms; analysis and synthesis; learning and understanding; compression, transmission, communication and networking; storage, retrieval, indexing and search; and/or hardware and software design and implementation.
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IEEE Publishing Operations
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