Active stereo matching for depth applications
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United States of America Patent
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Aug 27, 2024
Grant Date -
Mar 2, 2023
app pub date -
Nov 7, 2022
filing date -
Mar 22, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A head-mounted device (HMD) is configured to perform depth detection with a stereo camera pair comprising a first camera and a second camera, both of which are configured to detect/capture visible light and IR light. The fields of view for both of the cameras overlap to form an overlapping field of view. The HMD also includes an IR dot-pattern illuminator that is mounted on the HMD with the cameras and that is configured to emit an IR dot-pattern illumination. The IR dot-pattern illuminator emits a dot-pattern illumination that spans at least a part of the overlapping field of view. The IR dot-pattern illumination adds texture to objects in the environment and enables the HMD to determine depth for those objects, even if they have textureless/smooth surfaces.
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