90年度研討會

JPEG-2000 及 MPEG-7 的最新發展

招生簡章　課程大綱　師資簡介　報名表

課程大綱：

This tutorial covers JPEG-2000 (Joint Photographic Experts Group) and MPEG-7 (Moving Picture Experts Group).

＊New Developments in JPEG2000

JPEG-2000 has become a committee draft (CD) in Dec. 1999 with International Standard (IS) in Dec. 2000. JPEG-2000 is designed to provide rate-distortion and subjective image quality performance superior to current IS (JPEG and JPEG-LS). It also provides functionalities that current standards can neither address efficiently nor address at all; i.e., both lossless and lossy compression, encoding of very large images, progressive transmission by pixel accuracy and by resolution, robustness to channel noise, region of interest coding and random codestream access. It is also designed to address the requirements of very different kinds of applications, e.g. internet, color facsimile, printing, scanning, digital photography, remote sensing, mobile applications, medical imagery, digital libraries and e-commerce.
The tutorial will describe the algorithmic details followed by demonstration of reconstructed images. Access to source codes (C and JAVA), test data and IS documents will be provided.

＊New Developments in MPEG-7

MPEG-7, called "Multimedia content description interface", will be a standardized description of various types of multimedia information associated with the content itself to allow fast and efficient search, browse and retrieval of multimedia of interest to the user. IS is targeted for the year 2001. Various proposals using standardized content set are interactively evaluated/revised at each MPEG meeting. It does not comprise the automatic extraction of descriptors and features. It also does not specify the search engine (or any other program) that can make use of the descriptors. It will, however, standardize.

1. A set of description schemes and descriptors
   
2. A language to specify description schemes i.e., description definition language (DDL)
   
3. A scheme for coding the description allowing easy indexing, efficient storage and transmission.
   

The tutorial will discuss the current retrieval schemes such as Four Eyes, NeTra-V, WebSeek, MARS, VideoQ, QBIC, ARTISAN, STAR, ORBIT, VisualSeek, WebClip, DrawSeek, VideoTrails, VideoBase, Vortex, MUVIS, DARWIN,MetaSeek, InLumine, and SaFe. Note that each one of these schemes is designed for retrieval of a specific type of data (images or video or audio). Also there is no compatibility among these schemes. The tutorial will present the progress in developing the IS and the directions it is heading. Access to content set, source codes and simulation of retrieval schemes will be provided.