![]() In recent years, noninvasive, nonstaining, and nondestructive quantitative cell measurement techniques have become increasingly important in the medical field. Microscopic optical path length difference and polarization measurement system for cell analysis We suggest that this run- length encoding approach is applicable to trajectory data in animal or human mobility data. A k-means cluster analysis with the path string-encoded data showed that tph-1 movement behavior on food is similar to that of wild-type animals off food. To validate our approach, we examined the movement behavior of tph-1 mutants that lack an enzyme responsible for serotonin biosynthesis. We found that shallow and sharp turns are the most critical factors in distinguishing the differences among the movement behaviors. With these encoded string data, we perform k-means cluster analysis to distinguish movement behaviors resulting from different genotypes and food availability. elegans is encoded as a string of characters, where each character represents a path segment of a specific type of movement. elegans movement behavior using a computer vision approach based on run- length encoding of step- length data. elegans Search Behaviorĭirectory of Open Access Journals (Sweden)įull Text Available The nematode Caenorhabditis elegans explores the environment using a combination of different movement patterns, which include straight movement, reversal, and turns. Phantom measurements show that the path length is nearly constant for scatteringĪ Run- Length Encoding Approach for Path Analysis of C. We have characterized the path length for the differential path-length spectroscopy (DPS) fiber optic geometry for a wide range of optical properties and for fiber diameters ranging from 200 mu m to 1000 mu m. Controlling the optical path length in turbid media using differential path-length spectroscopy: fiber diameter dependence ![]()
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