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ThinkMind // UBICOMM 2019, The Thirteenth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies // View article ubicomm_2019_2_30_10036


UHD Panoramic Video Coding for Multi-camera and Multi-processor Acquisition Systems

Authors:
Joao Duarte
Joao Carreira
Pedro Assuncao

Keywords: Panoramic video Coding; Multi-processor encoding systems; Rate-distortion-complexity

Abstract:
This paper addresses the problem of encoding Ultra-High Definition (UHD) panoramic video in multi-camera and multi-processor systems, where a wide Field of View (FoV) is captured by multiple cameras, each one corresponding to a small FoV. The UHD panoramic images are then formed by stitching high-definition images captured by the individual cameras, covering a wide FoV around the acquisition viewpoint. A simulation study is carried out to evaluate the rate-distortion-complexity performance of multi-encoder systems using independent processors for encoding sub-images with small FoV, as part of a wider panoramic UHD resolution. This study uses an image partitioning scheme to distribute the UHD images with wide FoV over various processors and evaluates the rate-distortion-complexity performance of HEVC encoding in comparison with classic encoding of a single frame per processor. The results show that the rate-distortion performance of multi-processor systems is quite similar to single processor ones, which allows to distribute the huge computational requirements of HEVC encoding across several low-cost processors.

Pages: 30 to 35

Copyright: Copyright (c) IARIA, 2019

Publication date: September 22, 2019

Published in: conference

ISSN: 2308-4278

ISBN: 978-1-61208-736-8

Location: Porto, Portugal

Dates: from September 22, 2019 to September 26, 2019

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