ABSTRACT

When laser light illuminates a rough object, due to the optical interference of multibackscattered electromagnetic waves, a speckle pattern is formed on an observation plane. The speckle pattern is composed of dark and light spots due to superposition of the waves, which is static for nonliving matter. When the laser light illuminates a biological sample, the speckle patterns are no longer stable due to the physical

14.1 Biospeckle Phenomena ................................................................................. 361 14.2 Biological Sources of Biospeckle Activity ................................................... 363 14.3 Image Analysis for Assessment of Biospeckle Activity ...............................366