Protecting EBCOT Encoding System for JPEG2000

Embedded Block Coding with Optimal Truncation (EBCOT) is an entropy coding algorithm adopted by JPEG2000 still image compression standard. It is a quadtree encoding method representing a fault tolerance design challenge. EBCOT operates on independently coded blocks, and is therefore more robust to channel errors than many other wavelet based schemes. However, computer-induced errors can still destroy the image. In EBCOT, the condition of each sample is described by binary state variables. Any internal errors introduced in these state variables could lead to the errors of the neighboring state variables, corrupting the entire block. This work discuss the use of redundant data and arithmetic operations to detect such errors. It demonstrates the detection performance when single and double errors occur in the coding passes.