04310nas|a2200433 i 4500 20260818144318.0 030926s2002 th uzm rtt 00| a1eng d .b1190009x AIT RSPR no.TC-02-11 Dao Le Thu Thao The investigation of channel coding scheme for JPEG2000 bitstream over noisy channels Bangkok : Asian Institute of Technology, 2002 53 leaves : ill Research studies project report ; no. TC-02-11 Special Studies Project Report (M.Eng.) - Asian Institute of Technology, 2002 A research submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies JPEG2000 standard is established since 2000. It belong to the new generating of wavelet-based image codecs, such as: EZW (Shapio,1993), SPIHT (Said and Pearlman, 1995) and EBCOT (Taubman, 1996) can compress in efficient manner, especially at high compression ratio. It handles both lossy and lossless compression using the same transform based framework, and borrows heavily on ideas from the embedded block coding with optimized truncation (EBCOT) scheme. The JPEG2000 standard offers a variety of coding modes, which may be used to provide some degree of protection against errors. However, their bitstream are very sensitive to errors. Thus, transmission of these bitstreams over noisy channels is challenging. Recently, many works have focused on protecting these bitstreams from the effects of noisy channel. These works can be classified into two main classes: EEP (Equal Error Protection) and UEP (Unequal Error Protection). While UEP scheme based on the progressive bitstream to protect unequally the importance of the different parts of bitstream, EEP assigns the same amount of protection to every bit regardless of its importance. Since JP2 file is constructed in progressive manner, and do at high compression ratio, channel errors can cause an unrecoverable image. There are numerous channel coding schemes and modulation strategies to obtain the aim of transmission of those images. In this research, we focus on investigation of three coding schemes in term of EEP of JPEG2000 bitstream: convolutional code using soft decision Viterbi decoding, Trellis coded Modulation, and Turbo code using Maximum A Posteriori decoding algorithm. Those coding schemes are employed to transmit JPEG2000 bitstream over A WGN channel and uncorrelated Rayleigh fading channel. In our simulation, behavior of compressed image using three coding schemes is presented in te1m of PSNR value and visible image at the same signal-to-noise ratio for A WGN channel and Rayleigh fading channel. The e1ror resilience property of JPEG2000 codestream is good even when transmission over Rayleigh fading channels at low bit error rate. In our study, turbo coding scheme is the best scheme for protecting image from those noisy channel over two other coding schemes. Image compression JPEG (Image coding standard) Fernando, W.A.C., Chairperson Erke, Tapio J., Examination Committee Teerapat Sanguankotchakorn, Examination Committee Vietnam Ministry of Education and Training (MOET)., Scholarship donor Asian Institute of Technology. Research studies project report ; no. TC-02-11 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B08012 .b1190009x mnait u 240329 0 030926 m a u 4 mnait mnait mnarc 22 40 20 Barcode : 30050120552277 CREATED : 2012-03-12 RECORD # : i1271995x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120349377 CREATED : 2016-08-06 RECORD # : i13026495 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211034326 CREATED : 2021-05-05 RECORD # : i13344481 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 64665 64665 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT RSPR no.TC-02-11 30050120552277 2026-08-18 14:43:18 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no.TC-02-11 30050120349377 2026-08-18 14:43:18 2026-08-18 40 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT RSPR no.TC-02-11 30050211034326 2026-08-18 14:43:18 1 2026-08-18 20