| 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.
|
