Patent
Laser range camera
Richard J. Wangler
- 14 Apr 1995
302
TL;DR: In this paper, a laser range camera provides both imaging and range information using laser radar techniques using a laser transmitter having a fan shaped beam that creates a column shaped beam in a far field is scanned along a single axis within a defined field of view using an acoustical optical device.
read more
Abstract: A laser range camera provides both imaging and range information using laser radar techniques. A laser transmitter having a fan shaped beam that creates a column shaped beam in a far field is scanned along a single axis within a defined field of view using an acoustical optical device. A staring focal array of multiple line receivers having a long narrow field of view by using a linear array of fiber optics receives reflected energy from the scanned scene and transfers the received information to an avalanche photo diode by bundling the linear array into a circular array for interfacing with the diode. The range and intensity of each pixel within a scene is measured using a CCD measurement system which communicates with the receiver through the electrical signals. Range is determined for each pixel of the scene using the exposure characteristics of a CCD with analog type time of flight measurements. Range and intensity data are stored on odd and even CCD elements and used to display a three dimensional range image.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Architecture for controlling a computer using hand gestures
Andrew D. Wilson,Nuria Oliver +1 more
- 01 Dec 2003
TL;DR: In this article, a perceptual user interface system includes a tracking component that detects object characteristics of at least one of a plurality of objects within a scene, and tracks the respective object.
876
Patent
Methods for enhancing performance and data acquired from three-dimensional image systems
Abbas Rafii,Cyrus Bamji,Cheng-Feng Sze,Iihami Torunoglu +3 more
- 10 Dec 2001
TL;DR: In this paper, a three-dimensional distance time-of-flight system is disclosed in which distance values are acquired by a plurality of sensors independently from each other, and a sub-target having at least one pre-calibrated reflectance zone is used to improve system measurement accuracy.
373
Patent
Recognizing user intent in motion capture system
Relja Markovic,Stephen G. Latta,Kevin Geisner,Jonathan Steed,Darren Bennett,Amos D. Vance +5 more
- 31 Dec 2010
TL;DR: In this paper, a depth camera system tracks a person in physical space and evaluates the person's intent to engage with the application, such as location, stance, movement and voice data can be evaluated.
296
Patent
Cmos-compatible three-dimensional image sensor ic
Cyrus Bamji
- 18 Sep 2000
TL;DR: In this paper, a three-dimensional imaging system includes a two-dimensional array (230) of pixel light sensing detectors and dedicated electronics and associated processing circuitry fabricated on a common IC using CMOS fabrication techniques.
285
Patent
Physical interaction zone for gesture-based user interfaces
Ali M. Vassigh,Christian Klein,Ernest L. Pennington +2 more
- 09 Feb 2010
TL;DR: In this paper, a physical interaction zone of a user is defined based on a size of the user and other factors such as shape and location of the zone can be customized for the user.
256
References
Patent
Active near-field object sensor and method employing object classification techniques
Robert A. Olson,Robert L. Gustavson,Richard J. Wangler,II Robert E. McConnell +3 more
- 23 Nov 1992
TL;DR: In this paper, a range finder has been used for emitting a directional output of pulsed energy toward a fixed area, which is then received as reflective energy in a receiver section.
35
Patent
Gate array pulse capture device
Stuart W. Flockencier
- 02 Jul 1992
TL;DR: In this paper, a gate-array pulse capture device senses, receives, and processes signals derived in response to received laser energy, i.e., signals reflected from a target, and then compares its shape to a predetermined pattern to locate the position and intensity of the peak.
34
Patent
Apparatus and method for improved determination of the spatial location of object surface points
Howard K. Stern,Stanley Elstein +1 more
- 10 May 1991
TL;DR: In this article, a short pulse of optical energy is projected at the object surface and a time dependent gain function is used to modify the reflected optical energy resulting from the pulse so that time delay information indicative range can be developed and processed.
23
Patent
Three dimensional range imaging system
Bruce S. Maccabee
- 28 Aug 1991
TL;DR: In this paper, a pulse of luminant energy of short duration is reflected from a target asn echo source of both two dimensional target imaging data and target depth distance data by optical gating of the echo pulse at one receiving location.
20
Patent
Slant angle laser scanner
Bruce M. Carder
- 20 Oct 1989
TL;DR: In this article, a slant angle laser scanner was used to detect underwater hazards, particularly those having a long axis along a radial from the ship such as torpedoes, using a laser, an electro-optical scanner and a rotatably mounted mirror to scan the ocean surface with optical beams at a low angle of incidence.
13
Related Papers (5)
Paul E. Goo
- 08 May 1987
Francis MacDougall
- 09 May 1991
Ketsu Oh
- 27 Dec 1994
Jon W. Erickson
- 29 Jun 1994