Real-time close-range 3D non-contact volume and motion measurements

R. Wilson

doi:10.1117/12.2294248

1 August 1990 Real-time close-range 3D non-contact volume and motion measurements

R. Wilson

Proceedings Volume 1395, Close-Range Photogrammetry Meets Machine Vision; 139505 (1990) https://doi.org/10.1117/12.2294248
Event: Close-Range Photogrammetry Meets Machine Vision, 1990, Zurich, Switzerland

Abstract

Medical and industrial needs exist to track the position, volume and geometry of moving objects whose shapes change. Video imaging offers frame rates of sufficient frequency to support real-time sensing of fairly rapid changes in the real world. It is the processing of the video frames which represents the bottleneck in a "real- time" implementation. However, under certain limiting constraints, namely near-symmetry around a curved axis, real-time measure- ments are feasible with standard PC-based software to obtain 3-D positions, shape and volume of a moving and changing 3-D object. The paper describes a novel stereo-photogrammetric analysis system based on object silhouettes. Implementation involves the end-to-end system from video cameras to user interface and reporting of results. A medical application's scenario puts high demands on robustness and simplicity of the user interface, while operating in an entirely automated fashion. "Real-time" represents the need to process an image pair each 2 seconds. Accuracies of Ã‚Â±1% in dimension and 3% in volume are required and permit one to accept certain shortcuts in the photogrammetric approach.

Citation Download Citation

R. Wilson "Real-time close-range 3D non-contact volume and motion measurements", Proc. SPIE 1395, Close-Range Photogrammetry Meets Machine Vision, 139505 (1 August 1990); https://doi.org/10.1117/12.2294248

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Cameras

Calibration

Video

Image processing

3D image processing

Computing systems

Video processing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years