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Optimized Predictive Coding Of 5D Light Fields

Publication by Harini Priyadarshini Hariharan, Thorsten Herfet
Related to the Smart Asset re-Use in Creative Environments (SAUCE) project
Published in 2020 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2020


With the emergence of Light Field (LF) technology, the number of dimensions representing light has once again increased. 4D light fields captured with additional temporal information per ray or as assemblies of rays include the 5thdimension, namely time and thus produce 5D light fields. This is very crucial when we have moving objects in the scene. In the recent years, research has paved way to several ideas on efficient 4D light field compression. However, techniques for compression and storage for higher dimensions is still an open challenge. In this paper we have introduced a low-complexity predictive coding of 5D light fields by automatic generation of per frame customized coding structure exploiting both spatial and temporal neighbors. Evaluations with HEVC codec shows an increase of more than 1.4 dB gain in quality.