A configurable IP core for inverse quantized discrete cosine and integer transforms with arbitrary accuracy
| Autor: | Juergen Goetze, Ce Zhang, Chi-Chia Sun |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Shift-and-add
Computational complexity theory ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Data_CODINGANDINFORMATIONTHEORY computer.file_format MPEG-4 Electronic engineering Discrete cosine transform Trigonometric functions CORDIC Algorithm computer Transform coding Data compression Mathematics |
| Zdroj: | APCCAS |
| DOI: | 10.1109/apccas.2010.5774865 |
| Popis: | An extended version of low-complexity IP Core for image/video transformations based on the CORDIC architecture is presented. This IP core is able to perform quantized 8×8 IDCT and quantized 8×8/4×4 H.264-inverse integer transforms on a configurable architecture by using only shift and add operations. Furthermore, the number for CORDIC iterations and compensation steps can be adjusted, which enables a trade-off between video compression quality in PSNR and computational complexity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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