Abstract | ||
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Two realistic methods based on a generalized conservation equation of image brightness are proposed for the accurate determination of motion fields under non-uniform illumination. The conservation equation includes spatial and temporal derivatives of image brightness, a motion vector and a rate of brightness generation. The term for the brightness generation rate can represent non-stationarity of a brightness pattern during its motion under non-uniform illumination. By introducing an optical model and prior knowledge of non-uniform illumination the conservation equation can be solved. One of the two proposed methods assumes a stationary motion field under spatially non-uniform illumination. The other assumes local constancy of a motion field under temporally non-uniform illumination. The application to artificial and real image sequences confirms the usefulness of the proposed methods. |
Year | DOI | Venue |
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1995 | 10.1016/0167-8655(94)00094-J | Pattern Recognition Letters |
Keywords | Field | DocType |
non-uniform illumination,local optimization,motion field,temporal optimization,conservation equation | Computer vision,Motion field,Non uniform illumination,Image processing,Artificial intelligence,Real image,Local search (optimization),Image sequence,Brightness,Mathematics,Motion vector | Journal |
Volume | Issue | ISSN |
16 | 3 | Pattern Recognition Letters |
Citations | PageRank | References |
9 | 0.71 | 7 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Atsushi Nomura | 1 | 41 | 7.61 |
Hidetoshi Miike | 2 | 68 | 12.05 |
Kazutoshi Koga | 3 | 25 | 3.33 |