The ability to mark-up live sports event content, viewed from multiple camera angles, such that athletes and other objects of interest can be tracked, facilitates an exciting new personalised and interactive viewing experience for spectators, enabling spectators to act as directors of their own customised live sports videos. In this paper, such an approach is described as part of the My-e-Director 2012 project. The design of this platform is described here and a discussion of a prototype system is given.

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This paper proposes and compares solutions for switching and editing of compressed video signals in the programme chain. Proposals for bitstream splicing have been made, but these lack flexibility. Also, switching in the decoded domain degrades picture quality. The ACTS ATLANTIC project has developed an alternative approach, in which the decoded signals are switched, but recoding makes intelligent use of the coding decisions used to create the original bitstreams. This paper outlines the techniques used in this approach, and gives results of simulations. Examples of implementations for 'opt-out' and editing applications are given. The paper proposes techniques which allows the frame-accurate switching and editing of MPEG-2 bitstreams without introducing any visible impairment. The techniques are also applicable to other types of compression.