Digital Image Sequence Analysis For Computing Optical Flow In Flame Propagation Visualization

Robin N Strickland; Donald W Sweeney

doi:10.1117/12.940708

24 August 1987 Digital Image Sequence Analysis For Computing Optical Flow In Flame Propagation Visualization

Robin N Strickland, Donald W Sweeney

Proceedings Volume 0788, Flow Visualization and Aero-Optics in Simulated Environments; (1987) https://doi.org/10.1117/12.940708
Event: 1987 Technical Symposium Southeast on Optics, Electro-Optics, and Sensors, 1987, Orlando, FL, United States

Abstract

Temporally and spatially resolved two-dimensional imaging of turbulent reacting flows promises to enhance our knowledge of flame chemistry during ignition, propagation, and quenching. There are a number of active research programs in the combustion imaging diagnostics field, for example in high-speed laser shadowgraph recording, and two-dimensional laser-induced fluorescence imaging. The image data from these experiments is typically used to provide quantitative visualization of species concentrations in propaga-ting flames. Up until now, image sequences have always been interpreted with the aid of fairly simple image display or processing techniques, such as pseudocolor enhancement. Relatively little work has been done in the areas of computer recognition, classification, and interpretation of fluid flow. This paper takes an initial step towards this goal. We address the probem of tracking and displaying the flow of local features which occur at fluid interfaces in laser shadowgraph imagery. Image sequences are computer processed to produce two-dimensional maps showing the motion of the interfaces between hot combustion products and cold reactants gases. This is analogous to a simple form of optical flow map, typically used for describing solid object motion in video sequences. The computer processing is applied in the following stages: (1) unwanted background noise is subtracted from each frame in the sequence , (2) frames are thresholded and thinned to produce a sequence of skeletons representing the essential fluid structure, (3) localized correlation is performed between adjacent frames to produce an optical flow map.

Citation Download Citation

Robin N Strickland and Donald W Sweeney "Digital Image Sequence Analysis For Computing Optical Flow In Flame Propagation Visualization", Proc. SPIE 0788, Flow Visualization and Aero-Optics in Simulated Environments, (24 August 1987); https://doi.org/10.1117/12.940708

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
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Image processing

Optical flow

Visualization

Combustion

Image visualization

Image enhancement

Image analysis

Show All Keywords

Keywords/Phrases

Search In:

Publication Years