Media.Player

Advanced Macro-Block Entropy Coding for Advanced Video Standards先進影像標準的巨塊熵編碼

總結

The major part of multimedia applications (such as video conferencing and digital TV broadcasting) is video processing due to its high encoding complexity. The objective of current advanced video standards (including H.264 and AVS) is to achieve higher coding efficiency. In order to meet the objective, advanced entropy coding is required.

In this invention, the proposed entropy coding for advanced video standards is described based on new features of advanced video standards. In low bit-rate video coding, larger quantization parameters are used to give a smaller number of bits spent on residue data. As a result, the header overhead is a dominant factor of yielding the overall bit rates, especially in advanced video standards. Based on new features of MB header properties, we propose an advanced coding algorithm for entropy coding of MB header. The experimental results suggest that, compared with existing entropy coding algorithm, our scheme can achieve higher coding efficiency.

技術優勢

1. Easy implementation
2. Low computational complexity
3. High coding efficiency
4. High video quality in terms of PSNR
5. High accuracy of bit rates

技術應用

- For use in video encoders for multimedia applications over fixed and wireless network
- Applicable on various international video standards, including AVS, MPEG-1/2/4 and ITU-T H.261/3/4

附加資料

Patent Number: HK1122931A1
Application Number: HK2008114010A
Inventor: AU OSCAR CHI LIM | WONG CHI WAH
Priority Date: 5 Apr 2007
Priority Number: HK1122931A1
Application Date: 29 Dec 2008
Publication Date: 25 Jan 2013
Assignee Applicant: The Hong Kong University of Science & Technology
Title: ADVANCED MACRO-BLOCK ENTROPY CODING FOR ADVANCED VIDEO STANDARDS
Usefulness: ADVANCED MACRO-BLOCK ENTROPY CODING FOR ADVANCED VIDEO STANDARDS
Summary: Method for encoding video data frame.
Novelty: Video data frame encoding method, involves encoding element of macro blocks in video data frame by value of element based on past macro block head, and separating macro blocks into non-skipping macro block and skipping macro block

主要類別

信息和通信技術/電信

細分類別

圖像處理

申請日期

29 Dec 2008

申請號碼

Hong Kong 08114010.9

專利信息

Hong Kong HK1122931

ID號碼

TTC.PA.331

國家/地區

香港