Power-Aware HEVC Compression Through Asymmetric JPEG XS Frame Buffer Compression
| Autor: | Gael Rouvroy, Alexandre Willeme, Antonin Descampe, Benoît Macq |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
business.industry
Computer science Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology computer.file_format JPEG 0202 electrical engineering electronic engineering information engineering Codec 020201 artificial intelligence & image processing business computer Encoder Transform coding Decoding methods Computer hardware Reference frame |
| Zdroj: | ICIP |
| DOI: | 10.1109/icip.2018.8451539 |
| Popis: | With the emergence of UHD video, reference frame buffers (FBs) inside HEVC-like encoder and decoder chips have to sustain huge bandwidth. The power consumption due to the accesses to these off-chip memories accounts for a significant share of the codec's total consumption. This paper describes a JPEG XS-based frame buffer compression solution intended to decrease the FB's bandwidth, making HEVC more suitable for use in power-aware applications. As opposed to previous works, our solution compresses large picture areas (ranging from a CTU to a frame stripe) independently and is suitable for use in several data reuse strategies. According to experimental results, this work provides significant off-chip bandwidth and memory size reduction (DRR) at the cost of a slight rate increase. In particular, at low rates and if FBC is applied at HEVC encoder only, the DRR is as high as 83.3% with a $ rate increase and $ quality drop on average. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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