Alernativas para a implementação da análise do speckle laser em tempo real

Abstract

The use of dynamic speckle laser, also called biospeckle laser (BSL), presents a series of challenges to its adoption such as the case for its use in real time or during the adjustment of the experimental setup. The analysis of the BSL adopted in real time reduces the spatial resolution of the processed image and the adjustment of an experiment still demands the trial of a specialist. In this work two approaches were proposed to improve the efficiency of BSL on real-time as well as a guide to adjust to support the experimental configuration. The use of the method known as historical image of the movement (Motion History Image – MHI), was tested with a collection of known images of the BSL. The MHI was the basis for the implementation of a graphical interface for real-time identification of areas of activity, 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 delimiting the regions of activity, both achievements supporting the analyst in the choice of the lighting adjustments and the capture of the images.