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A. Rav-Acha
Researcher at Hebrew University of Jerusalem
Publications - 27
Citations - 2142
A. Rav-Acha is an academic researcher from Hebrew University of Jerusalem. The author has contributed to research in topics: Motion estimation & Video compression picture types. The author has an hindex of 16, co-authored 26 publications receiving 2094 citations.
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Proceedings ArticleDOI
Robust super-resolution
TL;DR: A robust approach for super-resolution is presented, which is especially valuable in the presence of outliers, since super- resolution methods are very sensitive to such errors.
Proceedings ArticleDOI
Making a Long Video Short: Dynamic Video Synopsis
TL;DR: This work presents dynamic video synopsis, where most of the activity in the video is condensed by simultaneously showing several actions, even when they originally occurred at different times.
Journal ArticleDOI
Two motion-blurred images are better than one
A. Rav-Acha,Shmuel Peleg +1 more
TL;DR: It is shown that when two motion-blurred images are available, having different blur directions, image restoration can be improved substantially and the direction of the motion blur and the PSF (Point Spread Function) of the blur can be computed robustly.
Journal ArticleDOI
Mosaicing on adaptive manifolds
TL;DR: A new methodology to allow image mosaicing in more general cases of camera motion is presented, performed by projecting thin strips from the images onto manifolds which are adapted to the camera motion.
Proceedings ArticleDOI
Webcam Synopsis: Peeking Around the World
TL;DR: This work proposes to generate a short video that will be a synopsis of an endless video streams, generated by webcams or surveillance cameras, and addresses queries like "I would like to watch in one minute the highlights of this camera broadcast during the past day".