Recording and real time reconstruction of digitalhologramsequences have recently become feasible. The amount of information that such hologramsequences contain results in voluminous data files, rendering their stor...
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(纸本)9780819476326
Recording and real time reconstruction of digitalhologramsequences have recently become feasible. The amount of information that such hologramsequences contain results in voluminous data files, rendering their storage and transmission impractical. As a result, compression of digitalhologramsequences is of utmost importance for practical applications of hologramsequences. In the absence of a specific hologramsequence compression technique, a first concern is how a high-performance conventional video compression technique would perform. Such a technique would not be optimized for hologramsequences but would provide a threshold that all hologramsequence compression techniques should reach. In this paper, the use of MPEG-4 part 2 video coding algorithm for the compression of hologramsequences is investigated. Although the algorithm was originally developed for the compression of ordinary video, we apply it on digitalhologramsequences and investigate its performance. For this, appropriate digitalhologramsequences are used to asses how the coding algorithm affects their information content. In addition, we investigate whether MPEG-4 interframe coding, which aims to achieve compression by exploiting similarities across adjacent frames of the sequence, offers any advantage compared to intraframe coding, where each frame is coded independently. Results show that the MPEG-4 coding algorithm can successfully compress hologramsequences to compression rates of similar to 20 : 1 while retaining the reconstruction quality of the hologramsequences.
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