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• W3131796352 abstract "Most digital cameras use specialized autofocus sensors, such as phase detection, lidar or ultrasound, to directly measure focus state. However, such sensors increase cost and complexity without directly optimizing final image quality. This paper proposes a new pipeline for image-based autofocus and shows that neural image analysis finds focus 5-10x faster than traditional contrast enhancement. We achieve this by learning the direct mapping between an image and its focus position. In further contrast with conventional methods, AI methods can generate scene-based focus trajectories that optimize synthesized image quality for dynamic and three dimensional scenes. We propose a focus control strategy that varies focal position dynamically to maximize image quality as estimated from the focal stack. We propose a rule-based agent and a learned agent for different scenarios and show their advantages over other focus stacking methods." @default.
• W3131796352 created "2021-03-01" @default.
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• W3131796352 date "2021-01-01" @default.
• W3131796352 modified "2023-10-15" @default.
• W3131796352 title "Deep Learning for Camera Autofocus" @default.
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• W3131796352 doi "https://doi.org/10.1109/tci.2021.3059497" @default.
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