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
More filters
Patent
Automatic mode switching in a volume dimensioner
TL;DR: In this article, the number of views captured of an object is automatically determined based on one of three modes: cuboid, no protrusions and only one obtuse angle that does not face the point of view.
Patent
Synthesis system of time-of-flight camera and stereo camera for reliable wide range depth acquisition and method therefor
Ouk Choi,Seungkyu Lee +1 more
TL;DR: In this article, a synthesis system of a time-of-flight (ToF) camera and a stereo camera for reliable wide range depth acquisition and a method therefor is presented.
Patent
Systems, devices, and methods for tracking moving targets
TL;DR: In this paper, a system for tracking a moving target having up to six degrees of freedom and rapidly determining positions of the target, which includes an easy to locate precision optical target fixed to the target.
Patent
Imaging systems with high dynamic range and phase detection pixels
TL;DR: In this paper, the phase detection pixels are arranged in phase detection pixel groups, which include three adjacent pixels arranged consecutively in a line, and the edge pixels in each pixel group may have the same integration time and the same color.
Patent
Method for three-dimensional reconstruction of laser speckle structured light and depth information
TL;DR: In this article, the authors proposed a method for 3D reconstruction of laser speckle structured light and depth information. But the method is not suitable for the reconstruction of 3D objects.
References
More filters
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.