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1. (WO2017191243) METHOD AND APPARATUS FOR GENERATING A COMPOSITE VIDEO STREAM FROM A PLURALITY OF VIDEO SEGMENTS

Pub. No.:    WO/2017/191243    International Application No.:    PCT/EP2017/060625
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Fri May 05 01:59:59 CEST 2017
IPC: G11B 27/034
G11B 27/10
Applicants: CANON EUROPA N.V.
Inventors: NIELSEN, Preben H.
MADSEN, John
KLAUSEN, Klaus
Title: METHOD AND APPARATUS FOR GENERATING A COMPOSITE VIDEO STREAM FROM A PLURALITY OF VIDEO SEGMENTS
Abstract:
A method and a device for generating a composite video are provided. The method comprises obtaining primary and secondary video segments each comprising a sequence of intra-coded I frames and predicted P frames, the primary and secondary video segments having first and second priority levels and first and second capture time intervals, wherein the second priority level is higher than the first priority level and the second capture time interval overlaps with the first capture time interval. The method comprises time-aligning the primary and the secondary video segments; identifying a start merge time in the primary video segment of a first anchor I frame of the secondary video segment; and merging frames of the primary and secondary video segments, without transcoding, to generate a composite video, wherein the composite video comprises frames of the primary video segment up to the start merge time, the first anchor I frame and frames of the secondary video segment subsequent to the first anchor I frame.