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- W2890948304 abstract "Dynamic Vision Sensors (DVS) output asynchronous log intensity change events. They have potential applications in high-speed robotics, autonomous cars and drones. The precise event timing, sparse output, and wide dynamic range of the events are well suited for optical flow, but conventional optical flow (OF) algorithms are not well matched to the event stream data. This paper proposes an event-driven OF algorithm called adaptive block-matching optical flow (ABMOF). ABMOF uses time slices of accumulated DVS events. The time slices are adaptively rotated based on the input events and OF results. Compared with other methods such as gradient-based OF, ABMOF can efficiently be implemented in compact logic circuits. We developed both ABMOF and Lucas-Kanade (LK) algorithms using our adapted slices. Results shows that ABMOF accuracy is comparable with LK accuracy on natural scene data including sparse and dense texture, high dynamic range, and fast motion exceeding 30,000 pixels per second." @default.
- W2890948304 created "2018-09-27" @default.
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- W2890948304 date "2018-09-03" @default.
- W2890948304 modified "2023-10-16" @default.
- W2890948304 title "Adaptive Time-Slice Block-Matching Optical Flow Algorithm for Dynamic Vision Sensors" @default.
- W2890948304 doi "https://doi.org/10.5167/uzh-168589" @default.
- W2890948304 hasPublicationYear "2018" @default.
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