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18 May 2004 Fast image interpolation for motion estimation using graphics hardware
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Proceedings Volume 5297, Real-Time Imaging VIII; (2004)
Event: Electronic Imaging 2004, 2004, San Jose, California, United States
Motion estimation and compensation is the key to high quality video coding. Block matching motion estimation is used in most video codecs, including MPEG-2, MPEG-4, H.263 and H.26L. Motion estimation is also a key component in the digital restoration of archived video and for post-production and special effects in the movie industry. Sub-pixel accurate motion vectors can improve the quality of the vector field and lead to more efficient video coding. However sub-pixel accuracy requires interpolation of the image data. Image interpolation is a key requirement of many image processing algorithms. Often interpolation can be a bottleneck in these applications, especially in motion estimation due to the large number pixels involved. In this paper we propose using commodity computer graphics hardware for fast image interpolation. We use the full search block matching algorithm to illustrate the problems and limitations of using graphics hardware in this way.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Francis Kelly and Anil Kokaram "Fast image interpolation for motion estimation using graphics hardware", Proc. SPIE 5297, Real-Time Imaging VIII, (18 May 2004);

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