Patent ID: 8854457
Filing Date: 2014-10-07
Classification: G11B,H04N

Abstract:
1. A computer based camerawork method for autonomous production of an edited video from multiple video streams captured by a plurality of fixed and/or motorized cameras distributed around a scene of interest, that selects, based on a known location of a set of objects-of-interest and as a function of time, sequences of optimal viewpoints to fit a display resolution and user preferences, and for smoothing these sequences of optimal viewpoints for a continuous and graceful story-telling, the camerawork method comprising: selecting, for each envisioned camera location and/or position, a field of view obtained by: autonomously building the edited video by selecting and concatenating video segments provided by one or more individual cameras, wherein the building is done in a way that balances completeness and closeness metrics along the time, while smoothing out the sequence of said cropping and/or pan-tilt-zoom parameters associated to concatenated segments, wherein the smoothing process is implemented based on a linear or non-linear low-pass temporal filter mechanism, and the relative importance of each camera location is tuned according to user preference.