An Efficient Architecture Design of De-blocking Filter for H.264 Codecs
| Autor: | Yu-Han Chen, 陳昱翰 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 This thesis focuses on the implementation of the de-blocking filter of H.264 video compression codec. The dataflow and corresponding architecture are developed to support the Picture Adaptive Field and Frame (PAFF) coding mode and MacroBlock Adaptive Field and Frame coding (MBAFF) modes. An attempt is also made to simplify the data flow not only to clarify the control flow, but also to complete all coding modes supported in a data flow. Prior to the architecture is designed, the processing unit is processed using different granularities. Data flows with the different granularities and parellel processing of processing element (PE) are managed to explore the design space. Increasing the utilization of filtering PE and data reuse can reduce data access time. Exploring the design space, involves determining the trade-off in architectural design by comparing the operating frequency, average bandwidth, bus bitwidth, and internal buffer size. The proposed architecture supports a main profile, high frame rate and improved picture resolution. The proposed architecture is synthesized with a TSMC 0.18μm technology cell library, demonstrating that the de-blocking filter being able to process the filtering operations at 60 frames per second with a resolution of 1920×1088 real time at a frequency of 108MHz. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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