Frame scattering for video scrubbing

Details Frame scattering for video scrubbing Frame scattering for video scrubbing

2006-05-31

2011-11-08

Koenig, Andrew (Department: 2423)

Interactive video distribution systems

User-requested video program system

Video-on-demand

C725S142000, C386S200000

Reexamination Certificate

active

08056107

ABSTRACT:
Disclosed is a method of retrieving video frames over a network for subsequent display. A user interaction (303) with a timeline (202) represented by a client (103) coupled to the network (105) is detected. From the detected interaction, a request (304) for video to be retrieved from a server (101) across the network is formed. A series of non-contiguous (scattered) sample frames (FIGS. 13-16) received in response to the request are then cached (104) for subsequent display. This method permits efficient handling of video scrubbing requests for streamlining video as only selected ones of the cached sample frames close to a GUI play head position (203) need be reproduced. Since the frames are non-contiguous, the scope of the source video is quickly sampled permitting improved user response and, where desired, adjustment of the play head position.

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Andreas Girgensohn and John Boreczky, “Time-Constrained Keyframe Selection Technique” in Multimedia Tools and Applications, Aug. 2000, Kluwer Academic Publishers, vol. 11, Issue 3, pp. 347-358.

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