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JPEG 2000 Overview

This document provides an in-depth overview of JPEG 2000 standards, including ISO/IEC JTC.1/SC.29/WG.1 specifications and extensions. It details progress from current drafts to final standards, including Baseline core, extensions, and Motion-JPEG2000. Major features include variable-length coding, wavelet transformation, progressive image delivery, and support for multiple components and error resilience. The document is intended for stakeholders in semiconductor and imaging technologies, presenting insights into regional coding and scalar quantization methods essential for JPEG 2000 implementation.

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JPEG 2000 Overview

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  1. JPEG 2000 Overview Detlef Götting Philips Semiconductors Systems Lab Hamburg Philips Electronics CONFIDENTIAL

  2. JPEG2000 - Introduction • ISO/IEC JTC 1 / SC 29 / WG 1 • ISO 15444 - 1 “Baseline core”ISO 15444 - 2 “Extensions”ISO 15444 - 3 “Motion-JPEG2000” ? Philips Electronics CONFIDENTIAL

  3. JPEG2000 - Status Part 1 • Current : WD Document “N1457” • Dezember 1999 : CD • November 2000 : DIS • March 2001 : IS Philips Electronics CONFIDENTIAL

  4. JPEG2000 - Status Part II • Current : Pre-WD • March 2000 : WD • July 2000 : CD • March 2001 : DIS • July 2001 : IS Philips Electronics CONFIDENTIAL

  5. ISO 15444 - 1 • JPEG2000 is based on 16 Bit markers and variable length data segments. • The arithmetic entropy coding used iscompliant to the “MQ Codec” from JBIG-2 Philips Electronics CONFIDENTIAL

  6. ISO 15444 - 1 • The wavelet coefficients are arranged into rectangular code blocks within each subband. • These code blocks are then coded bit-plane wise (MSBP to LSBP) into three passes (significance, refinement and clean up). Philips Electronics CONFIDENTIAL

  7. ISO 15444 - 1 • An image can be split into non-overlapped tiles.Each tile/image is decomposed into Malat compliant sub-bands. • The stream supports “progressive by quality”, “progressive by resolution” and “progressive by arbitrary styles”. Philips Electronics CONFIDENTIAL

  8. ISO 15444 - 1 • The baseline core makes use of a scalar quantizer. In the extension it is possible to use also a trellis-based quantizer. • The transformation of the image/tile data is done by block or line based FDWT/IDWTs. Philips Electronics CONFIDENTIAL

  9. ISO 15444 - 1 • The supported region of interest coding is compliant to the scaling based method MAXSHIFT. • This allows arbitrary shaped ROIs( Part I : rectangular / Part II : any shape ) without shape information. Philips Electronics CONFIDENTIAL

  10. ISO 15444 - 1 • The standard allows multiple components. • The standard supports error resilience. • A ISO 15444 compliant file is identified by the extension “.JP2” Philips Electronics CONFIDENTIAL

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