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CHI
2004
ACM
16 years 8 months ago
Sharp or smooth?: comparing the effects of quantization vs. frame rate for streamed video
We introduce a new methodology to evaluate the perceived quality of video with variable physical quality. The methodology is then used to assess an existing guideline that high fr...
John D. McCarthy, Martina Angela Sasse, Dimitrios ...
ICASSP
2009
IEEE
16 years 2 months ago
Video coding using Variable Block-Size Spatially Varying Transforms
In our previous work, we introduced Spatially Varying Transforms (SVT) for video coding, where the location of the transform block within the macroblock is not fixed but varying. ...
Cixun Zhang, Kemal Ugur, Jani Lainema, Moncef Gabb...
CIVR
2009
Springer
257views Image Analysis» more  CIVR 2009»
16 years 2 months ago
Trajectory-based handball video understanding
This paper presents a content-based approach for understanding handball videos. Tracked players are characterized by their 2D trajectories in the court plane. The trajectories and...
Alexandre Hervieu, Patrick Bouthemy, Jean-Pierre L...
MM
2009
ACM
144views Multimedia» more  MM 2009»
16 years 2 months ago
Manipulating lossless video in the compressed domain
A compressed-domain transformation is one that operates directly on the compressed format, rather than requiring conversion to an uncompressed format prior to processing. Performi...
William Thies, Steven Hall, Saman P. Amarasinghe
MM
2009
ACM
174views Multimedia» more  MM 2009»
16 years 2 months ago
Comparing fact finding tasks and user survey for evaluating a video browsing tool
There are still no established methods for the evaluation of browsing and exploratory search tools. In the (multimedia) information retrieval community evaluations following the C...
Werner Bailer, Herwig Rehatschek