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Macroblock-level mode based adaptive in-band motion compensated temporal filtering

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publication2006 IEEE International Conference on Image Processing, Atlanta, GA, United States
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Publication dateOct 2006
Pages3165 - 3168
Number of pages4
ISBN (Print)1424404819
DOIs
StatePublished

Conference

ConferenceInternational Conference on Image Processing
CountryUnited States
CityAtlanta
Period1/10/06 → …

Abstract

This paper presents an adaptive in-band motion compensated temporal filtering (MCTF) scheme for 3D wavelet based scalable video coding. The proposed scheme solves the motion mismatch problem when motion vectors from the LL subband are inaccurately applied to the highpass subbands in decoding high spatial resolution video. Specifically, we compare the macroblock residue energy in the highpass frames obtained by using motion vectors from both the LL and highpass subbands, and then adaptively transmit different sets of motion vectors based on whether mismatch has occurred in the highpass subbands. Macroblocks in the higher temporal levels favour the selection of highpass subbands' motion vectors because the motion estimation process becomes less accurate as temporal level increases. The modes information, which specifies whether the LL subband motion vectors or the highpass subbands' motion vectors are used by the current macroblock, is coded by run-length coding. Experimental results show that the proposed scheme improves both the visual quality and PSNR for high resolution decoding with comparison to other in-band MCTF schemes. Furthermore, our scheme requires only modifications when performing MCTF in the highpass subbands, thus, the original strength of in-band MCTF for decoding low spatial resolution video is well preserved

Additional information

Rose publication type: Conference contribution Terms of use: Copyright © 2006 IEEE. Reprinted from IEEE International Conference on Image Processing, 2006 (ICIP 2006). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • wavelet transform, in-band MCTF, motion mismatch

Event

International Conference on Image Processing

Duration1 Oct 2006 → …
CountryUnited States
CityAtlanta

Event: Conference

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DOI

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