Download Advances in Visual Information Systems: 9th International by Michael Lew (auth.), Guoping Qiu, Clement Leung, Xiangyang PDF

By Michael Lew (auth.), Guoping Qiu, Clement Leung, Xiangyang Xue, Robert Laurini (eds.)

The visible details structures foreign convention sequence is designed to supply a discussion board for researchers and practitioners from diversified parts of computing together with machine imaginative and prescient, databases, human–computer interplay, details defense, photograph processing, details visualization and mining, in addition to wisdom and data administration to replace rules, talk about demanding situations, current their most recent effects and to develop examine and improvement within the development and alertness of visible info platforms. Following prior meetings held in Melbourne (1996), San Diego (1997), Amsterdam (1999), Lyon (2000), Taiwan (2002), Miami (2003), San Francisco (2004) and Amsterdam (2005), the 9th overseas convention on visible details platforms, VISUAL2007, used to be held in Shanghai, China, June 28–29, 2007. through the years, the visible info platforms paradigm keeps to adapt, and the unrelenting exponential progress within the quantity of electronic visible facts underlines the escalating significance of the way such information are successfully controlled and deployed. VISUAL2007 bought 117 submissions from 15 international locations and areas. Submitted complete papers have been reviewed by way of greater than 60 overseas specialists within the box. This quantity collects fifty four chosen papers offered at VISUAL2007. subject matters lined in those papers contain photograph and video retrieval, visible biometrics, clever visible info processing, visible information mining, ubiquitous and cellular visible info structures, visible semantics, 2D/3D graphical visible info retrieval and purposes of visible details systems.

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Extra info for Advances in Visual Information Systems: 9th International Conference, VISUAL 2007 Shanghai, China, June 28-29, 2007 Revised Selected Papers

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In the course of preprocessing, a Gaussian pyramid with different scales from 0 to n level is used [7]. Each level is obtained by subsampling of 2 n , thus constructing five feature maps. Subsequently, the centre-surround mechanism is implemented in the model as the difference between the fine and coarse scales of Gaussian pyramid images [7]. Consequently, five feature maps are obtained by the following equations. I ( c, s ) =| I ( c ) • I ( s ) | , E (c, s ) =| E (c ) • E ( s ) | , S (c , s ) =| S (c ) • S ( s ) | .

Xue This paper is organized as follows: section 2 analyzes motion feature extraction and selection of video highlights; section 3 demonstrates color feature selection for video highlights. Section 4 combines these low-level features with high-level semantic structure definition, proposes the mid-level highlight shot feature (HSF) and analyzes its function for highlight annotation and indexing. Experiment results are discussed in section 5. Experiments were made on three sports video sequences including diving, swimming and basketball possessing different camera motion features and color features, proving robustness and effectiveness of our method.

T. enlightening or darkening. From a total of more than 40 different similarity measures, 14 similarity measures satisfy the above mentioned properties [18,19,21]. Here, we will restrict ourselves to some examples. Measures based on the Minkowski distance: ⎞ r1 ⎛ 1 M1 (A, B) = 1 − ⎝ |A(i, j) − B(i, j)|r ⎠ , with r ∈ N\{0} (3) MN (i,j)∈X M2 (A, B) = 1 − max |A(i, j) − B(i, j)|. (4) (i,j)∈X A(x)): A measure based on the notion of cardinality (|A| = x∈X |A ∩ B| = M6 (A, B) = |A ∪ B| min(A(i, j), B(i, j)) (i,j)∈X max(A(i, j), B(i, j)) .

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