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AAAI
1997

The "Inverse Hollywood Problem": From Video to Scripts and Storyboards via Causal Analysis

9 years 8 months ago
The "Inverse Hollywood Problem": From Video to Scripts and Storyboards via Causal Analysis
We address the problem of visually detecting causal events and tting them together into a coherent story of the action witnessed by the camera. We show that this can be done by reasoning about the motions and collisions of surfaces, using high-level causal constraints derived from psychological studies of infant visual behavior. These constraints are naive forms of basic physical laws governing substantiality, contiguity, momentum, and acceleration. We describe two implementations. One system parses instructional videos, extracting plans of action and key frames suitable for storyboarding. Since learning will play a role in making such systems robust, we introduce a new framework for coupling hidden Markov models and demonstrate its use in a second system that segments stereo video into actions in near real-time. Rather than attempt accurate lowlevel vision, both systems use high-level causal analysis to integrate fast but sloppy pixel-based representations over time. The output is su...
Matthew Brand
Added 01 Nov 2010
Updated 01 Nov 2010
Type Conference
Year 1997
Where AAAI
Authors Matthew Brand
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