Digital holographic video of plankton

The use of digital holography for plankton detection is discussed, namely - for evaluation of the plankton particles shapes, orientation, and 3-D location. Algorithm are considered for improve the quality of the reconstructed plankton holographic image. The algorithm is based on the digital hologram pre-processing before reconstruction. Algorithm for recording and reconstruction of digital holographic video is described. The possibility is shown for reconstruction either fixed plane of volume contained plankton or reconstruction the plane moving together with plankton species. Experimental results are presented.