Presentation
Deltasight: Architecting Efficient Video AIoT Systems via Cross-Stage Consistent Redundancy Elimination
DescriptionThe high energy cost of video AIoT systems stems from redundant operations across sensing, transmission, and computation. While prior work optimizes individual stages, the lack of cross-stage coordination forces each stage to re-detect redundancy, limiting overall efficiency. We present DeltaSight, an algorithm–hardware co-design architecture that establishes a sensor-side unified redundancy criterion serving as the common basis for redundancy elimination throughout the pipeline. Algorithmically, we generate this criterion via sensor-side block-level redundancy detection whose output matches the granularity of downstream computation, complemented by a semantic-aware sampling strategy that adapts precision to task relevance. An architecture is designed to support this algorithm with minimal hardware additions. DeltaSight gains 2.4x sensor-side and 1.7x end-to-end energy efficiency, with slight accuracy improvements.
Event Type
Research Manuscript
TimeMonday, July 275:06pm - 5:18pm PDT
LocationMtg Room 203AB
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