Computer aided techniques to support speckle laser experimental setup and online vision

Roberto A. Braga Jr.; Robson P. Godinho; José Roberto A. Nozela; Michel M. Silva

doi:10.1117/12.977949

11 September 2012 Computer aided techniques to support speckle laser experimental setup and online vision

Roberto A. Braga Jr., Robson P. Godinho, José Roberto A. Nozela, Michel M. Silva

Proceedings Volume 8413, Speckle 2012: V International Conference on Speckle Metrology; 84131E (2012) https://doi.org/10.1117/12.977949
Event: SPECKLE 2012: V International Conference on Speckle Metrology, 2012, Vigo, Spain

Abstract

The use of dynamic speckle laser, also called biospeckle laser (BSL), presents a series of challenges to its adoption, as it is the case for its use in real time, and when ones desires to adjust the experimental setup. The technical analysis of the BSL adopted in real time has reduced spatial resolution of the captured image, while the adjustment of preparing an experiment still demands the trial of a specialist. In this work two approaches have been proposed to improve the efficiency of BSL real-time adjustments to support the experimental setup. The use of the method known as Motion History Image (MHI) was carry out over a series of BSL images. The MHI was the basis for the implementation of a graphical interface for real-time identification of areas of activity, and then delimiting the regions of interest. The results showed that the MHI was effective in the reproduction of the activities of speckle patterns in real time without reducing image resolution, and as an instrument for delimit of regions of activity, supporting the analyst in the choice of lighting adjustments and image assembling.

Citation Download Citation

Roberto A. Braga Jr., Robson P. Godinho, José Roberto A. Nozela, and Michel M. Silva "Computer aided techniques to support speckle laser experimental setup and online vision", Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 84131E (11 September 2012); https://doi.org/10.1117/12.977949

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