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Researchers Improve ToF Resolution 1000-Fold Using Computational Approach

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CAMBRIDGE, Mass., Dec. 28, 2017 — In a novel approach to time-of-flight (ToF) imaging, researchers correlated the principle of heterodyning to ToF, increasing depth resolution 1000-fold. Higher ToF resolution could enable accurate distance measurements through fog, removing a major obstacle to the development of self-driving cars. At a range of 2 m, existing ToF systems have a depth resolution of about 1 cm. In contrast, a new ToF system developed by a team at MIT has a depth resolution of 3 µm at distances of 2 m. MIT researchers present a new scheme of heterodyne lidar that uses a cascaded stack of...Read full article

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