Shot Change Detection Using Structure Tensor in Spatio-temporal Slice
| Autor: | Yung-Shen Lin, 林永申 |
|---|---|
| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 92 With the approach of the digital times, we use and encounter with a great amount of multimedia information. Therefore, the automatic analysis of digital images and sounds is a key technique. Its relative application, such as MPEG-7 and XML, are widely used now. The video is not only to provide abundant entertainments but also to store useful multimedia information. The video retrieval becomes a very important topic and its core technique is shot detection. In the thesis, structure tensor in spatio-temporal slices is used to compute 2D histogram. The algorithm, which is derived from 2D histogram difference of horizontal centerline, is used to detect shot changes. Some improved algorithms are derived by using the feature of (1) partial derivatives, (2) partial derivatives & Smooth, (3) partial derivatives & enhanced, (4) all of them. The proposed method can efficiently detect shot changes of cut as well as the complicated ones such as fade-in, fade-out, dissolve and other fused changes. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|