Skip to main content
  1. Publications/

Low complexity light field compression based on pseudo-temporal circular sequencing

Publication by Harini Priyadarshini Hariharan, Tobias Lange, Thorsten Herfet
Published in 2017 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2017


Light fields are gaining more impact in today's filming technology due to post-processing possibilities such as software refocus, perspective shift, reconstruct 3D images, and depth scaling. Light fields are captured light rays at every point in space travelling in every direction, therefore a large amount of data is recorded for representation. For exchange, broadcast and storing of such imagery data, we lack efficient compression techniques. This paper proposes a light field compression approach based on low-complexity preprocessing by pseudo-temporal sequencing frames suitable for state-of-the-art codecs. An efficient novel approach of circular reordering is introduced where the redundancy between frames is maximized and exploited by low-delay HEVC predictive coding. Experimental results showcase a consistent increase in both PSNR and SSIM for several light fields and outperforms available schemes with pseudo-temporal sequencing using HEVC. An increase upto 1 dB gain compared to state-of-the-art reordering techniques using HEVC is achieved.