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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/8413

Title: Video enhancement using reference photographs
Authors: ANCUTI, Cosmin
BEKAERT, Philippe
Issue Date: 2008
Publisher: SPRINGER
Citation: VISUAL COMPUTER, 24(7-9). p. 709-717
Abstract: Digital video cameras are becoming commonplace in many households, but they still leave something to be desired in terms of image quality. Their poor light sensitivity make images noisy and blurry, and internal storage bandwidth limits the frame resolution. We present a technique for enhancing a low quality video sequence, using a set of high quality reference photographs, taken of the same scene. Our technique generates a high quality frame by copying information from the photographs in a patch-wise fashion. The copying is guided by a sparse set of reliable correspondences between the video frames and photographs. Our technique is purely image-based, and does not require depth estimation. A robust descriptor is employed for establishing valid matches between the video frames and the photographs. Then, the geometric transformation is estimated between every corresponding patch. With only a few reference photographs, we are able to reduce noise and motion blur, and more important, increase resolution by a factor of 6 (see Fig. 1).
Notes: Hasselt Univ tUL IBBT, Expertise Ctr Digital Media, Diepenbeek, B-3590 Belgium.
URI: http://hdl.handle.net/1942/8413
Link to publication: http://doi.acm.org/10.1145/1280720.1280796
ISI #: 000257384800026
ISSN: 0178-2789
Category: A1
Type: Journal Contribution
Validation: ecoom, 2009
Appears in Collections: Research publications

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