Efficient Intra Prediction Scheme For Light Field Image Compression
2014 (English)In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, IEEE conference proceedings, 2014, Art. no. 6853654- p.Conference paper (Refereed)
Interactive photo-realistic graphics can be rendered by using light field datasets. One way of capturing the dataset is by using light field cameras with microlens arrays. The captured images contain repetitive patterns resulted from adjacent mi-crolenses. These images don't resemble the appearance of a natural scene. This dissimilarity leads to problems in light field image compression by using traditional image and video encoders, which are optimized for natural images and video sequences. In this paper, we introduce the full inter-prediction scheme in HEVC into intra-prediction for the compression of light field images. The proposed scheme is capable of performing both unidirectional and bi-directional prediction within an image. The evaluation results show that above 3 dB quality improvements or above 50 percent bit-rate saving can be achieved in terms of BD-PSNR for the proposed scheme compared to the original HEVC intra-prediction for light field images.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2014. Art. no. 6853654- p.
Compression, HEVC, Light Field, Microlens array
IdentifiersURN: urn:nbn:se:miun:diva-21618DOI: 10.1109/ICASSP.2014.6853654ISI: 000343655300109ScopusID: 2-s2.0-84905255726OAI: oai:DiVA.org:miun-21618DiVA: diva2:706815
2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2014; Florence; Italy; 4 May 2014 through 9 May 2014; Category numberCFP14ICA-USB; Code 1066322014