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
Mobile dimensioner apparatus to mitigate unfair charging practices in commerce
TL;DR: In this article, a mobile volume dimensioning device is described that detects excessive measuring time and/or a repetitive range of measuring motion and receives a deactivation event upon detection of this inappropriate behavior so as to prevent the systematic reporting of either the highest or lowest dimensions.
Patent
Depth sensing using dynamic illumination with range extension
TL;DR: In this article, a system includes at least one projector comprising a plurality of light emitters, where the projector is configured to project a projected pattern comprising of projected features having different locations, and a camera configured to capture an image comprising a detected pattern corresponding to a reflection of the projected pattern.
Patent
Using micro mirrors to improve the field of view of a 3D depth map
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 article, a micro mirror assembly was used to enlarge the field of view (FOV) of a 3D depth map sensor, alleviating the limitation of limited laser illumination power and limitations on the resolution of the available imaging device.
Patent
Display device, display system and three-dimension display method
TL;DR: In this article, a display device, a display system and a three-dimensional display method are described, where each of the at least one camera devices includes at least two depth cameras, and a depth-of-field range of any one of the depth cameras does not fully overlap with depth of field ranges of other depth cameras.
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.