Analysis of overlapped block motion compensation based on a statistical motion distribution model

W. Zheng, Yoshiaki Shishikui, M. Naemura, Y. Kanatsugu, S. Itoh

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Abstract

Overlapped block motion compensation (OBMC) has been shown to provide reduced prediction errors as well as reduced blocking artifacts compared with the conventional non-overlapped block motion compensation (NOBMC). However, there is no satisfactory theoretical basis that clearly interprets why OBMC can reduce prediction errors. In this paper we present a theoretical analysis of OBMC based on a novel statistical motion distribution model. Our analysis proves theoretically that prediction errors increase towards block boundaries and that OBMC has error reduction and equalization property, with the errors being more reduced at block boundaries than at block centers. The analytical results are justified by empirical experiments with typical image sequences.

Original languageEnglish
Pages522-525
Number of pages4
Publication statusPublished - 1 Jan 2001
EventIEEE International Conference on Image Processing (ICIP) - Thessaloniki, Greece
Duration: 7 Oct 200110 Oct 2001

Conference

ConferenceIEEE International Conference on Image Processing (ICIP)
CountryGreece
CityThessaloniki
Period7/10/0110/10/01

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Zheng, W., Shishikui, Y., Naemura, M., Kanatsugu, Y., & Itoh, S. (2001). Analysis of overlapped block motion compensation based on a statistical motion distribution model. 522-525. Paper presented at IEEE International Conference on Image Processing (ICIP), Thessaloniki, Greece.