Preprocessing of compressed digital video

C. Andrew Segall; Passant V. Karunaratne; Aggelos K. Katsaggelos

doi:10.1117/12.411794

29 December 2000 Preprocessing of compressed digital video

C. Andrew Segall, Passant V. Karunaratne, Aggelos K. Katsaggelos

Proceedings Volume 4310, Visual Communications and Image Processing 2001; (2000) https://doi.org/10.1117/12.411794
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

Pre-processing algorithms improve on the performance of a video compression system by removing spurious noise and insignificant features from the original images. This increases compression efficiency and attenuates coding artifacts. Unfortunately, determining the appropriate amount of pre-filtering is a difficult problem, as it depends on both the content of an image as well as the target bit-rate of compression algorithm. In this paper, we explore a pre- processing technique that is loosely coupled to the quantization decisions of a rate control mechanism. This technique results in a pre-processing system that operates directly on the Displaced Frame Difference (DFD) and is applicable to any standard-compatible compression system. Results explore the effect of several standard filters on the DFD. An adaptive technique is then considered.

Citation Download Citation

C. Andrew Segall, Passant V. Karunaratne, and Aggelos K. Katsaggelos "Preprocessing of compressed digital video", Proc. SPIE 4310, Visual Communications and Image Processing 2001, (29 December 2000); https://doi.org/10.1117/12.411794

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