Recovering from Bit Errors in Scalar-Quantized Discrete Wavelet Transformed Images

In this paper we study the e ects of transmission noise on xed-length coded wavelet coe cients. We extend our previous work on maximum a posteriori detectors 1] to include interbitplane information and determine which transmitted codeword was most likely corrupted into a received erroneous codeword. We present a simple method of recovering from these errors once detected and demonstrate our restoration methodology on scalar-quantized wavelet coe cients that have been transmitted across a binary symmetric channel.

• Type: Conference
• Year: 1998
• Where: ICIP
• Authors: Alexander E. Mohr, Eve A. Riskin, Richard E. Ladner
• Keywords: Erroneous Codeword, ICIP 1998, Image Processing, Scalar-quantized Wavelet Coe, Wavelet Coe Cients