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检索条件"主题词=block truncation coding"
170 条 记 录,以下是141-150 订阅
排序:
Quadtree-segmented image coding schemes using vector quantization and block truncation coding
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OPTICAL ENGINEERING 2000年 第2期39卷 464-471页
作者: Hu, YC Chang, CC Natl Chung Cheng Univ Dept Comp Sci & Informat Engn Chaihyi 621 Taiwan
Three novel image compression schemes are proposed here for multimedia applications. The schemes are designed to combine the advantages of vector quantization and block truncation coding based on quadtree segmentation... 详细信息
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Digital image watermarking based on VSS in BTC domain
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JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 2003年 第5期26卷 703-707页
作者: Tai, SC Wang, CC Yu, CS Natl Cheng Kung Univ Inst Elect Engn Tainan 701 Taiwan
An image watermarking model based on visual secret sharing (VSS) is proposed for protection of ownership. In the embedding phase, the watermark is first divided by VSS into two parts: a hiding watermark and a secret w... 详细信息
来源: 评论
block truncation image bit plane coding
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OPTICAL ENGINEERING 2002年 第10期41卷 2476-2478页
作者: Wu, YG Leader Univ Inst Appl Informat Dept Comp Sci & Informat Engn Tainan Taiwan
block truncation coding (BTC) is a successful image compression technique due to its simple and fast computational burden. The bit rate is fixed to 2.0 bits/pixel, whose performance is moderate in terms of compression... 详细信息
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Predictive absolute moment block truncation coding for image compression
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Conference on Visual Communications and Image Processing
作者: Subramanian, S Makur, A TUE Ctr User Syst Interact IPO Eindhoven Netherlands
block truncation coding is one of the oldest known forms of image compression algorithms, its main attraction being its simple underlying concepts and ease of implementation. In this paper we present a new Predictive ... 详细信息
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Hybrid image compression methods based on vector quantization and block truncation coding
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OPTICAL ENGINEERING 1999年 第4期38卷 591-598页
作者: Chang, CC Hu, YC Natl Chung Cheng Univ Dept Comp Sci & Informat Engn Chiayi 621 Taiwan
Vector quantization (VQ) and block truncation coding (BTC) are two popular schemes for image compression. VQ has been widely used for its simplicity and low bit rate;on the other hand, BTC has the advantages of requir... 详细信息
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A genetic algorithm approach to multilevel block truncation coding
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IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 1999年 第8期E82A卷 1456-1462页
作者: Chen, WJ Tai, SC Natl Cheng Kung Univ Dept Elect Engn Tainan 70101 Taiwan
In this paper, a new scheme for designing multilevel ETC coding is proposed. Optimal quantization can be obtained by selecting the quantization threshold with an exhaustive search. However, this requires an enormous a... 详细信息
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Bit rate reduction techniques for absolute moment block truncation coding
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JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 1999年 第5期22卷 661-667页
作者: Chen, WJ Tai, SC Natl Cheng Kung Univ Dept Elect Engn Tainan 701 Taiwan
block truncation coding uses a two-level moment preserving quantizer that adapts to local properties of the images. It has the features of low computation load and low memory requirement while its bit rate is only 2.0... 详细信息
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Image compression using modified block truncation coding algorithm
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SIGNAL PROCESSING-IMAGE COMMUNICATION 1998年 第1期12卷 1-11页
作者: Chao, CW Hsieh, CH Lu, PC Chung Cheng Inst Technol Dept Elect Engn Tao Yuan 33509 Taiwan I Shou Univ Dept Informat Engn Kaohsiung 84008 Taiwan
This paper presents a modified block truncation coding (ETC) algorithm for image compression. Similar blocks in an image are merged into a cluster and represented with the cluster center. Each cluster center is then e... 详细信息
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VLSI implementation of visual block pattern truncation coding
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IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 1998年 第3期44卷 490-499页
作者: Liu, YC Lai, YK Tsai, TH Wu, PC Chen, LG Tamsui Oxford Univ Coll Dept Comp & Informat Sci Taipei Taiwan
The paper proposes a pipelined architecture of visual block pattern truncation coding algorithm to minimize mean square error. Using this chip, the VBPTC based system can be applied to real-time encoding for the movin... 详细信息
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An efficient BTC image compression algorithm with vector quantization
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CHINESE JOURNAL OF ELECTRONICS 2000年 第4期9卷 453-456页
作者: Lu, ZM Pan, JS Sun, SH Harbin Inst Technol Dept Automat Test & Control Harbin 150001 Peoples R China Natl Kaohsiung Inst Technol Dept Elect Engn Kaohsiung Taiwan
block truncation coding (BTC) is an efficient block coding technique suitable for real-time image compression, and it has high channel error resisting capability and good reconstructed image quality. Absolute moment E... 详细信息
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