Local Frequency Table for Context-based Adaptive Arithmetic Coding in Text Compression
Adaptive arithmetic coding is widely adopted in text compression. However, to achieve a high coding gain, an advanced way for context assignment is required. In this paper, the local frequency table technique is adopted to improve the coding efficiency of context-based adaptive arithmetic coding in...
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| Veröffentlicht in: | IEEE International Conference on Consumer Electronics-China (Online) S. 83 - 84 |
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06.07.2022
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| ISSN: | 2575-8284 |
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| Abstract | Adaptive arithmetic coding is widely adopted in text compression. However, to achieve a high coding gain, an advanced way for context assignment is required. In this paper, the local frequency table technique is adopted to improve the coding efficiency of context-based adaptive arithmetic coding in text compression. With it, the probability distribution of the characters to be encoded can be estimated more accurately and a higher compression ratio can be achieved. Experimental results show that the proposed coding algorithm with a local frequency table outperforms other methods and achieves better compression performance for text compression. |
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| AbstractList | Adaptive arithmetic coding is widely adopted in text compression. However, to achieve a high coding gain, an advanced way for context assignment is required. In this paper, the local frequency table technique is adopted to improve the coding efficiency of context-based adaptive arithmetic coding in text compression. With it, the probability distribution of the characters to be encoded can be estimated more accurately and a higher compression ratio can be achieved. Experimental results show that the proposed coding algorithm with a local frequency table outperforms other methods and achieves better compression performance for text compression. |
| Author | Tsai, Yi-Lin Ding, Jian-Jiun |
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| Snippet | Adaptive arithmetic coding is widely adopted in text compression. However, to achieve a high coding gain, an advanced way for context assignment is required.... |
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| SubjectTerms | Arithmetic Classification algorithms Consumer electronics Encoding Frequency estimation Probability distribution |
| Title | Local Frequency Table for Context-based Adaptive Arithmetic Coding in Text Compression |
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