| Autor: |
Kyung-Chang Park, Han-Byeo-Ri Kim, Yoon-Ki Hong, Seung-Youl Kim, Sangjin Lee, Younggap You |
| Rok vydání: |
2009 |
| Předmět: |
|
| Zdroj: |
The Journal of the Korea Contents Association. 9:91-98 |
| ISSN: |
1598-4877 |
| Popis: |
This paper presents a solution to error avalanche of deciphering where radio noise brings random bit errors in encrypted image data under ubiquitous environment. The image capturing module is to be made comprising data compression and encryption features to reduce data traffic volume and to protect privacy. Block cipher algorithms may experience error avalanche: multiple pixel defects due to single bit error in an encrypted message. The new fault tolerant scheme addresses error avalanche effect exploiting a three-dimensional data shuffling process, which disperses error bits on many frames resulting in sparsely isolated errors. Averaging or majority voting with neighboring pixels can tolerate prominent pixel defects without increase in data volume due to error correction. This scheme has 33% lower data traffic load with respect to the conventional Hamming code based approach. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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