Adaptive block-based light field coding

A compression scheme is presented that has been designed to eÆciently code light elds. Based on video compression techniques, the light eld image array is divided into image blocks. Dierent block-coding modes have been devised to exploit redundancy between images over a wide range of target bit rates. Prediction from multiple reference images further enhance coding eÆciency. Rate-constrained mode selec-tion is accomplished by employing Lagrangian optimization. The coder's operational rate-distortion performance is evaluated using dier-ent light elds. Depending on light-eld scene characteristics and reconstruction quality, com-pression ratios up to 1000:1 are achieved. 1