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http://dx.doi.org/10.5909/JBE.2017.22.3.366

2D Adjacency Matrix Generation using DCT for UWV Contents  

Xiaorui, Li (Department of Electronic Engineering, Kyung Hee University)
Kim, Kyuheon (Department of Electronic Engineering, Kyung Hee University)
Publication Information
Journal of Broadcast Engineering / v.22, no.3, 2017 , pp. 366-374 More about this Journal
Abstract
Since a display device such as TV or digital signage is getting larger, the types of media is getting changed into wider view one such as UHD, panoramic and jigsaw-like media. Especially, panoramic and jigsaw-like media is realized by stitching video clips, which are captured by different camera or devices. However, a stitching process takes long time, and has difficulties in applying for a real-time process. Thus, this paper suggests to find out 2D Adjacency Matrix, which tells spatial relationships among those video clips in order to decrease a stitching processing time. Using the Discrete Cosine Transform (DCT), we convert the each frame of video source from the spatial domain (2D) into frequency domain. Based on the aforementioned features, 2D Adjacency Matrix of images could be found that we can efficiently make the spatial map of the images by using DCT. This paper proposes a new method of generating 2D adjacency matrix by using DCT for producing a panoramic and jigsaw-like media through various individual video clips.
Keywords
2D Adjacency Matrix; Discrete Cosine Transform (DCT); panorama;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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