| Title: | Method and device for realizing arithmetic coding and decoding | ||
| Application Number: | 200610162164 | Application Date: | 2006.12.05 |
| Publication Number: | 1983334 | Publication Date: | 2007.06.20 |
| Approval Pub. Date: | Granted Pub. Date: | ||
| International Classifi-cation: | G06T9/00 | ||
| Applicant(s) Name: | Huawei Technology Co., Ltd. | Address: | |
| Inventor(s) Name: | He Yun;Yu Wei;Yang Ping;Meng Xinjian | ||
| Attorney & Agent: | zhengli meng | ||
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Abstract: |
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| A method for realizing arithmetic-coding /decoding (ACD) includes mapping region carrying out ACD on original number domain onto logarithm domain to realize said ACD directly through addition and subtraction when binary coding/decoding course is carried out in arithmetic coder/decoder, using approximate calculation to realize data conversion between two said domains in logarithm domain ACD course, making update as per probability as required after one symbol being coded/decoded and realizing said update by addition and subtraction in logarithm domain. | |||
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| Time: | 10 | ||
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