IEEE Transactions on Circuits and Systems for Video Technology
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Volume 7 Issue 5 • Oct. 1997
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Filter Results
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Scalable coding of very high resolution video using the virtual zerotree
Publication Year: 1997, Page(s):719 - 727
Cited by: Papers (33) | Patents (1)Coding of HDTV and super high definition video requires not only high performance compression but also compatibility and scalability to satisfy transmission channels of various speeds and capacity and receivers working at different resolutions. A compatible and scalable coding scheme has been developed for these video signals. Wavelet decomposition is performed such that the low frequency band is ... View full abstract»
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Spatio-temporal indexing of vector quantized video sequences
Publication Year: 1997, Page(s):728 - 740
Cited by: Papers (8) | Patents (6)Visual (image and video) database systems require efficient indexing to enable fast access to the images in a database. In addition, the large memory capacity and channel bandwidth requirements for the storage and transmission of visual data necessitate the use of compression techniques. Vector quantization (VQ) is an efficient technique for low bit-rate image and video compression. In addition, t... View full abstract»
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A comparison of block-matching algorithms mapped to systolic-array implementation
Publication Year: 1997, Page(s):741 - 757
Cited by: Papers (37) | Patents (8)This paper presents an evaluation of several well-known block-matching motion estimation algorithms from a system-level very large scale integration (VLSI) design viewpoint. Because a straightforward block-matching algorithm (BMA) demands a very large amount of computing power, many fast algorithms have been developed. However, these fast algorithms are often designed to merely reduce arithmetic o... View full abstract»
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Disk-based storage for scalable video
Publication Year: 1997, Page(s):758 - 770
Cited by: Papers (10)We consider the placement of scalable video data on single and multiple disks for storage and real-time retrieval. For the single-disk case, we extend the principle of constant frame grouping from constant bit rate (CBR) to variable bit rate (VBR) scalable video data. When the number of admitted users exceeds the server capacity, the rate of data sent to each user is reduced to relieve the disk sy... View full abstract»
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Video visualization for compact presentation and fast browsing of pictorial content
Publication Year: 1997, Page(s):771 - 785
Cited by: Papers (175) | Patents (74)Digital video archives are likely to be accessible on distributed networks which means that the data are subject to network congestion and bandwidth constraints. To enable new applications and services of digital video, it is not only important to develop tools to analyze and browse video, view query results, and formulate better searches, but also to deliver the essence of the material in compact... View full abstract»
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Time-delay neural networks for estimating lip movements from speech analysis: a useful tool in audio-video synchronization
Publication Year: 1997, Page(s):786 - 800
Cited by: Papers (20) | Patents (1)A new technology is proposed for audio-video synchronization in multimedia applications where talking human faces, either natural or synthetic, are employed for interpersonal communication services, home gaming, advanced multimodal interfaces, interactive entertainment, or in movie production. Facial sequences, in fact, represent an acoustic-visual source characterized by two strongly correlated c... View full abstract»
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An object-based system for stereoscopic viewpoint synthesis
Publication Year: 1997, Page(s):801 - 811
Cited by: Papers (33) | Patents (14)This paper describes algorithms that were developed for a real-time stereoscopic videoconferencing systems with viewpoint adaptation. The goal is a real telepresence illusion, which is achieved by synthesis of intermediate views from a stereoscopic camera shot with a rather large baseline. The actual viewpoint will be adapted according to the head position of the viewer, such that the impression o... View full abstract»
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Dynamic addressing scheme for vector quantization of images
Publication Year: 1997, Page(s):812 - 815
Cited by: Papers (1)In this paper, a dynamic addressing scheme (DAVQ) is introduced for image vector quantization. In the proposed system, the dynamic address obtained by two-stage searching will be transmitted instead of the absolute address in conventional VQ systems. Simulation results demonstrate that a significant savings in bit rate is acquired when compared with the standard VQ system. View full abstract»
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A new algorithm on MPEG-2 target bit-number allocation at scene changes
Publication Year: 1997, Page(s):815 - 819
Cited by: Papers (11) | Patents (5)The bit-number allocation strategy of Test Model 5 (TM5) may cause the coding quality to decrease and the buffer to overflow at scene changes, therefore a new algorithm on MPEG-2 target bit-number allocation is proposed in this letter. Here the influence of scene changes on coding quality is analyzed and an approach to improve the coding performance at scene changes is presented to avoid a sharp q... View full abstract»
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Design of fast motion estimation algorithm based on hardware consideration
Publication Year: 1997, Page(s):819 - 823
Cited by: Papers (10) | Patents (30)Most fast block-matching motion estimation (BMME) algorithms are designed to minimize the search positions (or checking points) in a given search range in order to speed up the computation. In this paper, we introduce a fast BMME algorithm based on the consideration of hardware implementation. We use a one-dimensional (1-D) systolic array as the basic computing engine. In order to utilize this eng... View full abstract»
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Global motion parameters estimation using a fast and robust algorithm
Publication Year: 1997, Page(s):823 - 826
Cited by: Papers (21) | Patents (3)The main difficulty in global motion parameters estimation resides in the disturbance of independently moving objects. The algorithm presented in this letter exploits global motion information not only from stationary objects and the image background, but also from independently moving objects. Simulation results show that the new algorithm is computationally fast and robust to the disturbance cau... View full abstract»
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A high performance fast search algorithm for block matching motion estimation
Publication Year: 1997, Page(s):826 - 828
Cited by: Papers (28) | Patents (32)In this paper, we introduce a new fast search block matching motion estimation algorithm with high performance. Based on the center-biased characteristic for most of the video sequences, the proposed algorithm can jointly minimize the error image and total number of bits spent on the motion vectors with much reduced computational complexity. Simulation results show that the proposed algorithm can ... 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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