24 August 2006 Intelligent video display to raise quality of experience on mobile devices
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Abstract
Mobile devices have been transformed from voice communication tools to advanced tools for consuming multimedia contents. The extensive use of such mobile devices entails watching multimedia contents on small LCD panels. However, the most of video sequences are captured for normal viewing on standard TV or HDTV, but for cost reasons, merely resized and delivered without additional editing. This may give the small-display-viewers uncomfortable experiences in understanding what is happening in a scene. For instance, in a soccer video sequence taken by a long-shot camera technique, the tiny objects (e.g., soccer ball and players) may not be clearly viewed on the small LCD panel. Thus, an intelligent display technique needs to be developed to provide small-display-viewers with better experience. To this end, one of the key technologies is to determine region of interest (ROI) and display the magnified ROI on the screen, where ROI is a part of the scene that viewers pay more attention to than other regions. In this paper, which is an extension from our prior work, we focus on soccer video display for mobile devices, and a fully automatic and computationally efficient method is proposed. Instead of taking generic approaches utilizing visually salient features, we take domain-specific approach to exploit the attributes of the soccer video. The proposed scheme consists of two stages: shot classification, and ROI determination. The experimental results show that the proposed scheme offers useful tools for intelligent video display for multimedia mobile devices.
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Changick Kim, Changick Kim, Jaeseung Ko, Jaeseung Ko, Ilkoo Ahn, Ilkoo Ahn, Muhammad Usman, Muhammad Usman, Jae Hoon Kwon, Jae Hoon Kwon, Jeongrok Park, Jeongrok Park, Young Hun Joo, Young Hun Joo, Yun Je Oh, Yun Je Oh, } "Intelligent video display to raise quality of experience on mobile devices", Proc. SPIE 6312, Applications of Digital Image Processing XXIX, 63120N (24 August 2006); doi: 10.1117/12.684414; https://doi.org/10.1117/12.684414
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