Duration-dependent Cumulants for Background Modeling
碩士 === 國立臺灣科技大學 === 機械工程系 === 98 === Cumulants in time intervals with different durations are proposed for modeling dynamic backgrounds. Different from most background models using inter-frame updates to capture the time-dependent variation of a pixel, this work extracts the variation across a certa...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2010
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| Online Access: | http://ndltd.ncl.edu.tw/handle/54615472018276530768 |
| Summary: | 碩士 === 國立臺灣科技大學 === 機械工程系 === 98 === Cumulants in time intervals with different durations are proposed for modeling dynamic backgrounds. Different from most background models using inter-frame updates to capture the time-dependent variation of a pixel, this work extracts the variation across a certain time interval, and compares the variation patterns revealed from the intervals of different durations. The advantages of the proposed method include the following: (1) interval-based features are more robust to background noises than single pixel-based features, (2) pattern variations across intervals of different duration can distinguish moving foregrounds from wavering backgrounds in a more reliable way than inter-frame pixel-based approaches. In addition to the proposed method, this thesis also proposes a solution to the false foregrounds often seen in inter-frame pixel-based background models. The proposed background model and solution are validated by experiments with videos of different scenes and scenarios.
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