Inter-layer prediction for backwards compatible high dynamic range video coding with SVC
| Autor: | Herbert Thoma, Jens-Uwe Garbas |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Lossless compression
business.industry Computer science ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Color space Scalable Video Coding Computer vision Artificial intelligence Multiview Video Coding business Bitstream Algorithm Context-adaptive binary arithmetic coding High dynamic range Coding (social sciences) |
| Zdroj: | PCS |
| DOI: | 10.1109/pcs.2012.6213348 |
| Popis: | We present a backwards compatible high dynamic range video coding framework based on H.264/AVC. It allows to extract a standard low dynamic range (LDR) as well as high dynamic range (HDR) video from one compressed bit stream. A joint global and local inter-layer prediction method is proposed to reduce the redundancy between the LDR and HDR layers. It is based on a common color space which can represent HDR video data perceptually lossless. We show how the inter-layer prediction parameters can be estimated in a rate-distortion optimized way and efficiently encoded to reduce side information. Our evaluations demonstrate that the proposed framework performs best, compared to the state-of-the-art for arbitrary tone-mapping operators. W.r.t. simulcast it allows for up to 50% bit rate saving. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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