| 摘要 |
This disclosure describes techniques for detecting scene transitions in a digital video sequence. An encoding device may, for example, analyze a distribution of pixel values over a plurality of frames to detect locations at which the scene transitions occur. In particular, the encoding device analyzes the distribution of pixel locations having values in a mid range of possible pixel values to identify locations in the plurality of frames that experience a significant short term increase in the number of pixel locations having mid range pixel values. A significant short term increase in the number of pixel locations with pixel values in the mid range of possible pixel values is indicative of a soft transition. In this manner, occurrences of gradual scene transitions are detected by identifying locations within the plurality of frames that have significant short term increases in the number of pixel locations having mid range pixel values.
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