Utilize este identificador para referenciar este registo: http://hdl.handle.net/10071/25390
Autoria: Monteiro, R.
Lucas, L.
Conti, C.
Nunes, P.
Rodrigues, N.
Faria, S.
Pagliari, C.
Silva, E.
Soares, L.
Data: 2016
Título próprio: Light field HEVC-based image coding using locally linear embedding and self-similarity compensated prediction
Título do evento: 2016 IEEE International Conference on Multimedia and Expo Workshop, ICMEW 2016
ISBN: 978-1-5090-1552-8
DOI (Digital Object Identifier): 10.1109/ICMEW.2016.7574670
Palavras-chave: Light field image coding
Self-similarity
Image prediction
Locally linear embedding
HEVC
Resumo: Light field imaging is a promising new technology that allows the user not only to change the focus and perspective after taking a picture, as well as to generate 3D content, among other applications. However, light field images are characterized by large amounts of data and there is a lack of coding tools to efficiently encode this type of content. Therefore, this paper proposes the addition of two new prediction tools to the HEVC framework, to improve its coding efficiency. The first tool is based on the local linear embedding-based prediction and the second one is based on the self-similarity compensated prediction. Experimental results show improvements over JPEG and HEVC in terms of average bitrate savings of 71.44% and 31.87%, and average PSNR gains of 4.73dB and 0.89dB, respectively.
Arbitragem científica: yes
Acesso: Acesso Aberto
Aparece nas coleções:IT-CRI - Comunicações a conferências internacionais

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