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检索条件"主题词=block truncation coding"
170 条 记 录,以下是161-170 订阅
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block truncation coding WITH ENTROPY coding
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IEEE TRANSACTIONS ON COMMUNICATIONS 1995年 第2-4期43卷 1677-1685页
作者: FRANTI, P NEVALAINEN, O Department of Computer Science University of Turku Turku Finland
block truncation coding (ETC) is a simple and fast image compression algorithm which achieves constant bit rate of 2.0 bits per pixel, The method is however suboptimal. In the present paper we propose a modification o... 详细信息
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IMPROVING block truncation coding BY LINE AND EDGE INFORMATION AND ADAPTIVE BIT PLANE SELECTION FOR GRAY-SCALE IMAGE COMPRESSION
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PATTERN RECOGNITION LETTERS 1995年 第1期16卷 67-75页
作者: YANG, CK TSAI, WH NATL TSING HUA UNIV DEPT COMP & INFORMAT SCIHSINCHU 300TAIWAN MING CHUAN COLL DEPT INFORMAT MANAGEMENTTAIPEITAIWAN
A new approach to improving block truncation coding for gray-scale image compression is proposed. A set of line and edge bit planes is defined independently of input images and adaptively selected to yield lower bit r... 详细信息
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A COMPARISON OF DIFFERENT block truncation coding ALGORITHMS FOR IMAGE COMPRESSION
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SIGNAL PROCESSING-IMAGE COMMUNICATION 1994年 第1期6卷 77-82页
作者: MITCHELL, HB ZILVERBERG, N AVRAHAM, M Signal Processing and Computing Division Elta Electronics Industries Ltd Ashdod Israel
Many different versions of the block truncation coding image compression algorithm exist. In this paper we compare the different versions from the viewpoint of reconstructed image quality and computational complexity.
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A FAST NEARLY OPTIMUM EQUI-SPACED 3-LEVEL block truncation coding ALGORITHM
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SIGNAL PROCESSING-IMAGE COMMUNICATION 1994年 第5期6卷 397-404页
作者: MOR, I SWISSA, Y MITCHELL, HB ELTA ELECTR IND LTD DIV SIGNAL PROC & COMPASHDODISRAEL BEN GURION UNIV NEGEV DEPT ELECT ENGNIL-84105 BEER SHEVAISRAEL
For a high-quality real-time image compression at moderate bit-rates the equi-spaced 3-level block truncation coding algorithms is an attractive coding method. Unfortunately, the present-day equi-spaced 3-level algori... 详细信息
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Segmentation of gray-scale images using piecewise linear approximation
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SYSTEMS AND COMPUTERS IN JAPAN 1996年 第1期27卷 69-76页
作者: Yamasaki, I Ohshima, T Hasegawa, M Furukawa, T FUJI PHOTO FILM CO LTD KANAGAWA 258JAPAN SHINSHU UNIV FAC TEXT SCI & TECHNOLDEPT KANSEI ENGNMATSUMOTONAGANOJAPAN
This paper deals with clock truncation coding for gray-scale images. An image region is segmented into unequal-sized square blocks according to local luminance variations and luminance values in the block are approxim... 详细信息
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MULTILEVEL block truncation coding USING A MINIMAX ERROR CRITERION FOR HIGH-FIDELITY COMPRESSION OF DIGITAL IMAGES
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IEEE TRANSACTIONS ON COMMUNICATIONS 1993年 第8期41卷 1179-1191页
作者: WU, YY COLL, DC CARLETON UNIV DEPT SYST & COMP ENGN OTTAWA K1S 5B6 ONTARIO CANADA
This paper describes an encoding technique-multi-level block truncation coding-that preserves the spatial details in digital images while achieving a reasonable compression ratio. An adaptive quantizer-level allocatio... 详细信息
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INTERPOLATIVE 3-LEVEL block truncation coding ALGORITHM (VOL 29, PG 1267, 1993)
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ELECTRONICS LETTERS 1993年 第17期29卷 1591-1591页
作者: OSHRI, E SHELLY, N Signal Processing & Computing Division Elta Electronic Industries Ltd. Ashdod Israel Ben Gurion University of the Negev Beer-Sheva Israel
Zeng has described an interpolative two-level block truncation coding (BTC) image compression algorithm. The Letter extends the work of Zeng to a three-level interpolative BTC algorithm. Compared to Zeng, the new algo... 详细信息
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COLOR IMAGE-coding USING MORPHOLOGICAL PYRAMID DECOMPOSITION
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IEEE TRANSACTIONS ON IMAGE PROCESSING 1995年 第2期4卷 177-185页
作者: OVERTURF, LA COMER, ML DELP, EJ PURDUE UNIV SCH ELECT ENGNCOMP VIS & IMAGE PROC LABW LAFAYETTEIN 47907
In this paper, we present a new algorithm that utilizes mathematical morphology for pyramidal coding of color images. We obtain lossy color image compression by using block truncation coding at the pyramid levels to a... 详细信息
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block truncation coding USING HOPFIELD NEURAL NETWORK
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ELECTRONICS LETTERS 1992年 第23期28卷 2144-2145页
作者: MITCHELL, HB DORFAN, M Elta Electronics Industries Ltd. Ashdod Israel
The authors extend the analysis of the block truncation coding (BTC) algorithm using a Hopfield neural network (HNN). They show that its performance is suboptimum (in the mean square error sense) and that alternative ... 详细信息
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MODIFIED ALGORITHM FOR block truncation coding OF MONOCHROME IMAGES
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ELECTRONICS LETTERS 1985年 第20期21卷 900-902页
作者: UDPIKAR, V RAINA, JP INDIAN INST TECHNOL DEPT ELECT ENGNFIBRE OPT COMMUN LABMADRAS 600036TAMIL NADUINDIA
block truncation coding (BTC) is a recent technique used in the coding of image data. In the letter a modified technique for BTC coding of image data is presented which is algorithmically simple and hence easy to impl... 详细信息
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