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检索条件"主题词=block truncation coding"
170 条 记 录,以下是121-130 订阅
排序:
Improving BTC image compression using a fuzzy complement edge operator
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SIGNAL PROCESSING 2008年 第12期88卷 2989-2997页
作者: Amarunnishad, T. M. Govindan, V. K. Mathew, Abraham T. Natl Inst Technol Dept Elect Engn Calicut 673601 Kerala India Natl Inst Technol Dept Comp Engn Calicut 673601 Kerala India
A simple and easy to implement technique for improving block truncation coding (BTC) is proposed. The method is based on replacement of bit block obtained using the conventional BTC method with the fuzzy logical bit b... 详细信息
来源: 评论
block truncation coding using pattern fitting
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PATTERN RECOGNITION 2004年 第11期37卷 2131-2139页
作者: Dhara, BC Chanda, B Indian Stat Inst Elect & Commun Sci Kolkata 700108 India Jadavpur Univ Dept Informat Technol Kolkata 700098 India
block truncation coding (BTC) divides an image into blocks having given size and then encodes each block by two representative gray levels and a bit-pattern. In this work a modified scheme of BTC is proposed where the... 详细信息
来源: 评论
Performance Evaluation of Interpolative BTC Image coding Algorithms
Performance Evaluation of Interpolative BTC Image Coding Alg...
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International Conference on Signals and Electronic Systems (ICSES 2008)
作者: Belgassem, Fituri Rhoma, Elganai Dziech, A. Higher Inst Elect Dept Commun Engn Beni Walid Libya
block truncation coding (BTC) is one of spatial coding techniques of images. This technique has a simple and fast algorithm which achieves constant bit rate of 2 bits per pixel. The compression ratio may be improved b... 详细信息
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Efficient optimal pixel grouping schemes for AMBTC
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The Journal of Photographic Science 2008年 第4期56卷 217-231页
In the conventional absolute moment block truncation coding (AMBTC) scheme, the block mean value is taken as the threshold for pixel grouping. But, the use of the block mean value is not optimal in AMBTC subject to th... 详细信息
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Predictive grayscale image coding scheme using VQ and BTC
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FUNDAMENTA INFORMATICAE 2007年 第2期78卷 239-255页
作者: Hu, Yu-Chen Providence Univ Dept Comp Sci & Informat Engn Taichung 433 Taiwan Taiwan
A predictive image compression scheme that combines the advantages of vector quantization and moment preserving block truncation coding is introduced in this paper. To exploit the similarities among neighboring image ... 详细信息
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A hybrid image coding in overdriving for motion blur reduction in LCD
A hybrid image coding in overdriving for motion blur reducti...
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6th International Conference on Entertainment Computing (ICEC 2007)
作者: Wang, Jun Min, Kyeongyuk Chong, Jongwha Hanyang Univ Seoul 133791 South Korea
Overdriving technique enlarges the desired change of the pixel value, the error in general compression methods is enlarged at the same time. Therefore, we propose a novel Adaptive Quantization coding (AQC) to reduce t... 详细信息
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Quality compressed steganography using hidden referenced halftoning
Quality compressed steganography using hidden referenced hal...
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9th IEEE International Symposium on Multimedia
作者: Guo, Jing-Ming Chen, Jen-Ho Natl Taiwan Univ Sci & Technol Dept Elect Engn Taipei Taiwan
block truncation coding is an efficient compression technique while offering good image quality. Nonetheless, the blocking effect inherent in BTC causes severe perceptual artifact in high compression ratio application... 详细信息
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Low-complexity and low-bit-rate image compression scheme based on absolute moment block truncation coding
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OPTICAL ENGINEERING 2003年 第7期42卷 1964-1975页
作者: Hu, YC Providence Univ Dept Comp Sci & Informat Management Taichung 433 Taiwan
A novel image compression scheme based on absolute moment block truncation coding (AMBTC) is proposed. The quadtree segmentation technique is employed in this scheme to exploit the variable-block-sized segmentation. I... 详细信息
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A novel detection and recovery system for tampered images using block truncation coding and vector quantization
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IMAGING SCIENCE JOURNAL 2003年 第4期51卷 235-246页
作者: Wang, CT Chen, TS Liao, CY Gen Educ Ctr Natl Chin Yi Inst Technol Taichung 411 Taiwan Natl Taiwan Inst Technol Dept Informat Management Taichung Taiwan
In this paper, a novel detection and recovery system is proposed for image authentication based on two compression schemes: block truncation coding and vector quantization. In order to reduce the overhead in the commu... 详细信息
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Edge detection using block truncation coding
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INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE 2003年 第6期17卷 951-966页
作者: Hu, YC Chang, CC Providence Univ Dept Comp Sci & Informat Management Taichung 433 Taiwan Natl Chung Cheng Univ Dept Comp Sci & Informat Engn Chiayi 62107 Taiwan
In this paper, a new edge detection scheme based on block truncation coding (BTC) is proposed. As we know, the BTC is a simple and fast scheme for digital image compression. To detect an edge boundary using the BTC sc... 详细信息
来源: 评论