All-Zero-AC block detection using energy preservation theorem for H.263 video coding

Soong Der Chen, Abd Rahman Ramli, M. R. Mukerjee

Research output: Contribution to conferencePaper

Abstract

This paper present a technique used in H.263 video coding to detect All-Zero-AC occurrence without performing the transformation and quantization process. It is developed based on the energy preservation theorem. When the total AC energy in pre-transform domain is known, the occurrence of All-Zero-AC is predictable by comparing the total AC energy with the quantization threshold - Q2. The evaluations indicate that its prediction efficiency and speed gain depends on motion activities, level of Q and also the relative overhead imposed by the shortcut itself. In conclusion, the proposed new algorithm is expected to be practical in all common environment (low bit rate) targeted by H.263 standards as no negative speed gain is observed during the evaluation for all range of QP (Q = 2.5 QP).

Original languageEnglish
Publication statusPublished - 01 Dec 2000
Event2000 TENCON Proceedings - Kuala Lumpur, Malaysia
Duration: 24 Sep 200027 Sep 2000

Other

Other2000 TENCON Proceedings
CityKuala Lumpur, Malaysia
Period24/09/0027/09/00

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Image coding
Mathematical transformations

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Chen, S. D., Ramli, A. R., & Mukerjee, M. R. (2000). All-Zero-AC block detection using energy preservation theorem for H.263 video coding. Paper presented at 2000 TENCON Proceedings, Kuala Lumpur, Malaysia, .
Chen, Soong Der ; Ramli, Abd Rahman ; Mukerjee, M. R. / All-Zero-AC block detection using energy preservation theorem for H.263 video coding. Paper presented at 2000 TENCON Proceedings, Kuala Lumpur, Malaysia, .
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Chen, SD, Ramli, AR & Mukerjee, MR 2000, 'All-Zero-AC block detection using energy preservation theorem for H.263 video coding' Paper presented at 2000 TENCON Proceedings, Kuala Lumpur, Malaysia, 24/09/00 - 27/09/00, .

All-Zero-AC block detection using energy preservation theorem for H.263 video coding. / Chen, Soong Der; Ramli, Abd Rahman; Mukerjee, M. R.

2000. Paper presented at 2000 TENCON Proceedings, Kuala Lumpur, Malaysia, .

Research output: Contribution to conferencePaper

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AU - Mukerjee, M. R.

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N2 - This paper present a technique used in H.263 video coding to detect All-Zero-AC occurrence without performing the transformation and quantization process. It is developed based on the energy preservation theorem. When the total AC energy in pre-transform domain is known, the occurrence of All-Zero-AC is predictable by comparing the total AC energy with the quantization threshold - Q2. The evaluations indicate that its prediction efficiency and speed gain depends on motion activities, level of Q and also the relative overhead imposed by the shortcut itself. In conclusion, the proposed new algorithm is expected to be practical in all common environment (low bit rate) targeted by H.263 standards as no negative speed gain is observed during the evaluation for all range of QP (Q = 2.5 QP).

AB - This paper present a technique used in H.263 video coding to detect All-Zero-AC occurrence without performing the transformation and quantization process. It is developed based on the energy preservation theorem. When the total AC energy in pre-transform domain is known, the occurrence of All-Zero-AC is predictable by comparing the total AC energy with the quantization threshold - Q2. The evaluations indicate that its prediction efficiency and speed gain depends on motion activities, level of Q and also the relative overhead imposed by the shortcut itself. In conclusion, the proposed new algorithm is expected to be practical in all common environment (low bit rate) targeted by H.263 standards as no negative speed gain is observed during the evaluation for all range of QP (Q = 2.5 QP).

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Chen SD, Ramli AR, Mukerjee MR. All-Zero-AC block detection using energy preservation theorem for H.263 video coding. 2000. Paper presented at 2000 TENCON Proceedings, Kuala Lumpur, Malaysia, .