Patent
Depth camera based on structured light and stereo vision
Sagi Katz,Avishai Adler +1 more
TLDR
In this article, a depth camera system uses a structured light illuminator and multiple sensors such as infrared light detectors, such as in a system which tracks the motion of a user in a field of view.Abstract:
A depth camera system uses a structured light illuminator and multiple sensors such as infrared light detectors, such as in a system which tracks the motion of a user in a field of view. One sensor can be optimized for shorter range detection while another sensor is optimized for longer range detection. The sensors can have a different baseline distance from the illuminator, as well as a different spatial resolution, exposure time and sensitivity. In one approach, depth values are obtained from each sensor by matching to the structured light pattern, and the depth values are merged to obtain a final depth map which is provided as an input to an application. The merging can involve unweighted averaging, weighted averaging, accuracy measures and/or confidence measures. In another approach, additional depth values which are included in the merging are obtained using stereoscopic matching among pixel data of the sensors.read more
Citations
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Patent
Depth sensing robotic hand-eye camera using structured light
TL;DR: In this article, a robot is configured to perform a task on a workpiece and a camera having a field of view is operably connected to the robot to determine a depth of the workpiece relative to a position of the robot using the structured light projected onto the work piece within the region of interest.
Patent
System and method for detecting in-vehicle conflicts
Shen Haifeng,Zhao Yuan +1 more
TL;DR: In this article, the authors proposed a method for detecting inter-person conflict by detecting human objects from the at least one image and determining a distance between two of the detected human objects.
Patent
Consistent tessellation via topology-aware surface tracking
TL;DR: In this paper, a series of meshes is approximated by taking one or more meshes from the series and calculating a transformation field to transform the keyframe mesh into each mesh of the series, and substituting the transformed keyframe meshes for the original meshes.
Patent
Optical micromesh for computerized devices
Peter Shintani,Jose Omar Gonzalez Hernandez,William Clay,Pablo Antonio Espinosa,Fred Ansfield,Bibhudendu Mohapatra,Keith Resch,Morio Usami +7 more
TL;DR: In this paper, an optical, laser based micromesh network is used to dynamically map node location using time domain multiplexing (TDM) to avoid cross talk and communication collision due to overlapping laser illumination.
Patent
3d scanning device and method
TL;DR: In this paper, a 3D scanning device consisting of a projector for projecting a plurality of preset patterns on an object to be 3D scanned, and an image capturing unit for capturing images of the patterns, which are being projected on the object, at different exposure levels, respectively, is described.
References
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Journal ArticleDOI
A multiple-baseline stereo
Masatoshi Okutomi,Takeo Kanade +1 more
TL;DR: It is shown that the SSSD-in-inverse-distance function exhibits a unique and clear minimum at the correct matching position, even when the underlying intensity patterns of the scene include ambiguities or repetitive patterns.
Patent
Apparatus and methods for determining the three-dimensional shape of an object using active illumination and relative blurring in two images due to defocus
TL;DR: In this article, a method and apparatus for mapping depth of an object in a preferred arrangement uses a projected light pattern to provide a selected texture to the object along the optical axis (24) of observation.
Patent
3d geometric modeling and motion capture using both single and dual imaging
Eyal Gordon,Gur Arie Bittan +1 more
TL;DR: In this article, a bi-dimensional coded light pattern is projected on the object such that each of the identifiable feature types appears at most once on predefined sections of distinguishable epipolar lines.
Patent
3d geometric modeling and 3d video content creation
Eyal Gordon,Gur Arieh Bittan +1 more
TL;DR: In this paper, a bi-dimensional coded light pattern is projected on the object such that each of the identifiable feature types appears at most once on predefined sections of distinguishable epipolar lines.
Patent
Vision system for an autonomous vehicle
TL;DR: In this article, a stereo vision system using a combination of cameras having > a wide baseline in order to detect obstacles that are relatively far away from the cameras and > a shorter baseline to detect obstacle that are closer to the cameras is presented.