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检索条件"主题词=block truncation coding"
170 条 记 录,以下是151-160 订阅
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Color image compression by moment-preserving and block truncation coding techniques
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IEEE TRANSACTIONS ON COMMUNICATIONS 1997年 第12期45卷 1513-1516页
作者: Yang, CK Lin, JC Tsai, WH NATL TSING HUA UNIV DEPT COMP & INFORMAT SCIHSINCHU 300TAIWAN
A new color image compression technique based on moment-preserving and block truncation coding is proposed, An input image is divided into nonoverlapping blocks and each block pixel is assigned one of two representati... 详细信息
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A novel block truncation coding of color images using a quaternion-moment-preserving principle
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IEEE TRANSACTIONS ON COMMUNICATIONS 1997年 第5期45卷 583-595页
作者: Pei, SC Cheng, CM Department of Electrical Engineering National Taiwan University Taiwan Telecommunication Laboratory Ministry of Communications Taiwan
block truncation coding (ETC) is an efficient tool for image compression, To compress color-pixel blocks, a novel color ETC algorithm, called quaternion-moment block truncation coding (QMBTC), is presented in this pap... 详细信息
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Hybrid block truncation coding
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IEEE SIGNAL PROCESSING LETTERS 1997年 第12期4卷 328-330页
作者: Huang, CS Lin, YY Dept. of Electr. Eng. Nat. Central Univ. Chung-Li Taiwan Department of Electrical Engineering National Central University Chungli Taiwan
A hybrid block truncation coding (BTC) is presented in this work. In the hybrid ETC, a universal codebook using Ramming codes and a differential pulse code modulation (DPCM) are employed, respectively, to the bit plan... 详细信息
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A new classified vector quantization based on quadtree
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PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL 1999年 第4期9卷 304-309页
作者: Jiang, K Zhang, QL Fudan Univ ASIC Shanghai 200433 Peoples R China Fudan Univ Syst State Key Lab Shanghai 200433 Peoples R China
A new algorithm of classified vector quantization based on quadtree segmentation is proposed. It can obtain lower bit rate and overcome edge degradation. Simulation results show that the better subjective image qualit... 详细信息
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Two-level quantizer design using genetic algorithm
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IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 1999年 第2期E82A卷 403-406页
作者: Chen, WJ Tai, SC Cheng, PJ Natl Cheng Kung Univ Dept Elect Engn Tainan 70101 Taiwan
In this letter, a new scheme of designing two-level minimum mean square error quantizer for image coding is proposed. Genetic algorithm is applied to achieve this goal. Comparisons of results with various methods have... 详细信息
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A new classified vector quantization based on quadtree
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Progress in Natural Science:Materials International 1999年 第4期 65-70页
作者: 江科 章倩苓 ASIC & System State Key Laboratory China Fudan University Shanghai 200433
A new algorithm of classified vector quantization based on quadtree segmentation is proposed. It can obtain lower bit rate and overcome edge degradation. Simulation results show that the better subjective image qualit... 详细信息
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block truncation coding for color images using vector quantization
Block truncation coding for color images using vector quanti...
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Hybrid Image and Signal Processing V Conference
作者: Celenk, M Wu, JS OHIO UNIV STOCKER CTRSCH ELECT ENGN & COMP SCIATHENSOH 45701
The method of block truncation coding (BTC) was originally proposed by Delp and Mitchell and later extended to color images by others. The idea is to retain important visual features while discarding details which are... 详细信息
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New bit rate reduction techniques for block truncation coding
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IEEE TRANSACTIONS ON COMMUNICATIONS 1996年 第10期44卷 1247-1250页
作者: Rao, YVR Eswaran, C NANYANG TECHNOL UNIV SCH ELECT & ELECT ENGN SINGAPORE 2263 SINGAPORE
Two simple and fast block truncation coding algorithms which require reduced bit rates are presented in this paper. The proposed algorithms are compared with the modified block truncation coding technique (MBTC) with ... 详细信息
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Modified block truncation coding for image compression
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PATTERN RECOGNITION LETTERS 1996年 第14期17卷 1499-1506页
作者: Chao, CW Hsieh, CH Lu, PC Cheng, TA CHUNG CHENG INST TECHNOL DEPT ELECT ENGNTAYUAN 33509TAIWAN
This paper presents a modified block truncation coding scheme for the compression of images. We first design a set of binary edge patterns, which are visually significant, to approximate the bit plane of an image bloc... 详细信息
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Modified VQ-BTC algorithm for image compression
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ELECTRONICS LETTERS 1998年 第14期34卷 1390-1392页
作者: Wang, CC Chen, CH Chen, IH Natl Cheng Kung Univ Dept Elect Engn Tainan 70101 Taiwan
VQ-BTC is a recent technique used in the coding of image data to combat edge degradation produced by vector quantisation (VQ) or block truncation coding (BTC). However, it has high encoding complexity and needs a larg... 详细信息
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