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Shafiei, Arash; Ngo, Quang; Ravindra, Guntur; Saini, Mukesh; Pang, Cong; Ooi, Wei Tsang

doi:10.1145/2393347.2396434

Cited by 5 publications

(5 citation statements)

References 4 publications

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“…In this respect, researchers in the multimedia community have for some time analyzed region-of-interest streaming solutions. For example, tiling is discussed in [6], [7], [8], [9], [10]. Furthermore, [11], [12], [13], [14], [15] extensively address the problem of automatically generating personalized content, and [16] discusses plain cropping.…”

Section: Related Workmentioning

confidence: 99%

“…The works related to tiling can be broadly classified into two scenarios, the server side generation [6], [8], [9], [10] and the client side generation [17], [7]. The former emphasize on reducing the through-put on the server side because their processing happens on server and the video is merely transferred to the client for display.…”

Section: Related Workmentioning

confidence: 99%

“…A client retrieves segments in high quality for segments being used for the virtual camera, and the rest of the tiles are retrieved in lower quality depending on the strategy used. In contrast to, for example, [18], [9] retrieving only tiles in the region of interest, we need to retrieve all tiles since the virtual camera moves and at least low quality data needs to be available if the user zooms out or moves quickly.…”

Section: Related Workmentioning

confidence: 99%

See 2 more Smart Citations

Tiling of panorama video for interactive virtual cameras: Overheads and potential bandwidth requirement reduction

Gaddam

Ngo

Langseth

et al. 2015

2015 Picture Coding Symposium (PCS)

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Abstract-Delivering high resolution, high bitrate panorama video to a large number of users introduces huge scaling challenges. To reduce the resource requirement, researchers have earlier proposed tiling in order to deliver different qualities in different spatial parts of the video. In our work, providing an interactive moving virtual camera to each user, tiling may be used to reduce the quality depending on the position of the virtual view. This raises new challenges compared to existing tiling approaches as the need for high quality tiles dynamically change. In this paper, we describe a tiling approach of panorama video for interactive virtual cameras where we provide initial results showing the introduced overheads and the potential reduction in bandwidth requirement.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Tiling of panorama video for interactive virtual cameras: Overheads and potential bandwidth requirement reduction

Gaddam

Ngo

Langseth

et al. 2015

2015 Picture Coding Symposium (PCS)

View full text Add to dashboard Cite

show abstract

“…In this respect, researchers in the multimedia community have for some time analyzed region-ofinterest streaming solutions. For example, tiling is discussed in [3,2,7,12,13,16,18]. Furthermore, [1,10,17,19] extensively address the problem of automatically generating personalized content, and [9] discusses plain cropping.…”

Section: System Overviewmentioning

confidence: 99%

“…A client retrieves segments in as high quality as possible for segments being used for the virtual camera, and the rest of the tiles are retrieved in decreasing lower quality depending on the distance to the edge of the virtual camera image. In contrast to for example [16] retrieving only tiles in the region of interest, we need to retrieve all tiles since the virtual camera moves and at least low quality data needs to be available if the user zooms out or moves quickly. Another difference is that the tiles fetched do not follow a strict logic apart from being in the neighborhood of the current tile.…”

Section: System Overviewmentioning

confidence: 99%

Scaling virtual camera services to a large number of users

Gaddam

Langseth

Stensland

et al. 2015

Proceedings of the 6th ACM Multimedia Systems Conference

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By processing video footage from a camera array, one can easily make wide-field-of-view panorama videos. From the single panorama video, one can further generate multiple virtual cameras supporting personalized views to a large number of users based on only the few physical cameras in the array. However, giving personalized services to large numbers of users potentially introduces both bandwidth and processing bottlenecks, depending on where the virtual camera is processed.In this demonstration, we present a system that address the large cost of transmitting entire panorama video to the end-user where the user creates the virtual views on the client device. Our approach is to divide the panorama into tiles, each encoded in multiple qualities. Then, the panorama video tiles are retrieved by the client in a quality (and thus bit rate) depending on where the virtual camera is pointing, i.e., the video quality of the tile changes dynamically according to the user interaction. Our initial experiments indicate that there is a large potential of saving bandwidth on the cost of trading quality of in areas of the panorama frame not used for the extraction of the virtual view.

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Design of real-time video streaming and object tracking system for home care services

Chang

Liu

2016

2016 IEEE International Conference on Consumer Electronics-Taiwan (ICCE-TW)

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Jiku live

Cited by 5 publications

References 4 publications

Tiling of panorama video for interactive virtual cameras: Overheads and potential bandwidth requirement reduction

Tiling of panorama video for interactive virtual cameras: Overheads and potential bandwidth requirement reduction

Scaling virtual camera services to a large number of users

Design of real-time video streaming and object tracking system for home care services

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