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A Study on Non-octave Scalable Image Coding and Its Performance Evaluation Using Digital Cinema Test Material Takayuki NAKACHI Tomoko SAWABE Junji SUZUKI Tetsuro FUJII Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E89-A No.9 pp.2405-2414 Publication Date: 2006/09/01 Online ISSN: 1745-1337 DOI: 10.1093/ietfec/e89-a.9.2405 Print ISSN: 0916-8508 Type of Manuscript: PAPER Category: Image Keyword: image coding, wavelet transform, JPEG2000, resolution conversion, digital cinema, super high definition images, Full Text: PDF(1.3MB)>>
Summary: JPEG2000, an international standard for still image compression, offers 1) high coding performance, 2) unified lossless/lossy compression, and 3) resolution and SNR scalability. Resolution scalability is an especially promising attribute given the popularity of Super High Definition (SHD) images like digital-cinema. Unfortunately, its current implementation of resolution scalability is restricted to powers of two. In this paper, we introduce non-octave scalable coding (NSC) based on the use of filter banks. Two types of non-octave scalable coding are implemented. One is based on a DCT filter bank and the other uses wavelet transform. The latter is compatible with JPEG2000 Part2. By using the proposed algorithm, images with rational scale resolutions can be decoded from a compressed bit stream. Experiments on digital cinema test material show the effectiveness of the proposed algorithm. | ||||||||||
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