The use of digital holography for plankton detection is discussed, namely - for evaluation of the plankton particles shapes, orientation, and 3-D location. Algorithms are considered for improve the quality of the reconstructed plankton holographic image. The algorithms are 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 as well as their discussion are presented.