Asymmetric coding of stereoscopic 3D based on perceptual significance
| Autor: | Mohamed-Chaker Larabi, Sid Ahmed Fezza, Kamel Mohamed Faraoun |
|---|---|
| Přispěvatelé: | SIC (XLIM-SIC), Université de Poitiers-XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Asymmetric stereoscopic coding
Just-noticeable difference Computer science business.industry depth media_common.quotation_subject ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Stereoscopy Asymmetry law.invention visual saliency law Perception BJND binocular suppression HVS Computer vision Artificial intelligence business Just noticeable [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing media_common Visual saliency Coding (social sciences) |
| Zdroj: | IEEE International Conference on Image Processing (ICIP) IEEE International Conference on Image Processing (ICIP), Oct 2014, Paris, France. pp.5656-5660, ⟨10.1109/ICIP.2014.7026144⟩ ICIP |
| DOI: | 10.1109/ICIP.2014.7026144⟩ |
| Popis: | 10% best papers certificate; International audience; Asymmetric stereoscopic coding is a very promising technique to decrease the bandwidth required for stereoscopic 3D delivery. However, one large obstacle is linked to the limit of asymmetric coding or the just noticeable threshold of asymmetry, so that 3D viewing experience is not altered. By way of subjective experiments, recent works have attempted to identify this asymmetry threshold. However, fixed threshold, highly dependent on the experiment design, do not allow to adapt to quality and content variation of the image. In this paper, we propose a new non-uniform asymmetric stereoscopic coding adjusting in a dynamic manner the level of asymmetry for each image region to ensure unaltered binocular perception. This is achieved by exploiting several HVS-inspired models; specifically we used the Binocular Just Noticeable Difference (BJND) combined with visual saliency map and depth information to quantify precisely the asymmetry threshold. Simulation results show that the proposed method results in up to 44% of bitrate saving and provides better 3D visual quality compared to state-of-the-art asymmetric coding methods. |
| Databáze: | OpenAIRE |
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