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
Systems and methods for stereo imaging with camera arrays
TL;DR: In this paper, a method of generating depth information for an object using two or more array cameras that each include a plurality of imagers is described, where the object is identified in the first set of image data and a depth measurement is determined when the depth is above a threshold.
Patent
Reducing Interference Between Multiple Infra-Red Depth Cameras
Shahram Izadi,David Molyneaux,Otmar Hilliges,David Kim,Jamie Shotton,Stephen E. Hodges,David Alexander Butler,Andrew Fitzgibbon,Pushmeet Kohli +8 more
TL;DR: In this paper, a controller is used to control the sources in order to reduce the interference caused by overlapping light patterns, including cycling between the different sources, where the cycle used may be fixed or may change dynamically based on the scene detected using the cameras.
Patent
Imager Array Interfaces
TL;DR: In this paper, a plurality of focal planes, where each focal plane comprises a two-dimensional arrangement of pixels having at least two pixels in each dimension, is described, and control circuitry is configured to control the capture of image information by the pixels within the focal planes.
Patent
Multi-dimensional data capture of an environment using plural devices
TL;DR: In this paper, a user can capture time-indexed three-dimensional (3D) depth data using one or more portable data capture devices that capture time indexed color images of a scene with depth information and location and orientation data.
Patent
Systems and methods for manufacturing camera modules using active alignment of lens stack arrays and sensors
TL;DR: In this article, a method for actively aligning a lens stack array with a sensor that has a focal plane array is described, where the camera subassembly is formed based on the selected spatial relationship between the stack array and the sensor.
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.