Shot Change Detection Using Structure Tensor in Spatio-temporal Slice

• Main Authors: Yung-Shen Lin, 林永申
• Other Authors: J. H. Jeng
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/68724301134697443150

碩士 === 義守大學 === 資訊工程學系 === 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.