Proposal

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Kan-Han (John) Lu

GPU Programming Wei-Chao Chen CUDA Speedup for Distributed Video Coding System Cryptography and Data Processing # 12 group Members: 黃琮閔 R98548012 王品翔 R98944043 呂侃翰 698470271

Introduction Distributed Video Coding(DVC) is a new paradigm for video compression that enables low-complexity video encoding where the bulk of the computation is shifted to the decoder Based on Slepian-Wolf`s and Wyner-Ziv`s information theory

The DISCOVER CODEC DISCOVER(DIStributedCoding for Video sERvices) ,a European project funded under the European Commission IST FP6 programme Source code and document are available on http://www.discoverdvc.org

Complexity Issues GOP = 2 http://www.discoverdvc.org

Problem Statement High time-delay in decoder which hinders its practical application in real-time system The decoder complexity arises mainly from two factor: - Iterative LDPC decoding process with a feedback channel - Motion estimation procedure in the Side Information(SI) generation

Goal Speed up DVC system by using a GPU implementation of the decoder - LDPC Part: G. Falcao, L. Sousa and V. Silva, “Massive parallelLDPC Decoding on GPU,” PPOPP 2008 - SI Generation Part: P. Wang, X. Liu, “A Parallel Algorithm for Side Information Generation in DVC,” ISIE 2009

Scheduling Paper study ( 1 week) Investigate DISCOVER source code (1 week) Implementation (5 weeks) Experiment Refinement Presentation

Expectable Result 希望能夠利用CUDA實作出一個Faster distributed video coding codec並與DISCOVER codec做coding time上的比較

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Proposal

1. GPU Programming Wei-Chao Chen CUDA Speedup for Distributed Video Coding System Cryptography and Data Processing # 12 group Members: 黃琮閔 R98548012 王品翔 R98944043 呂侃翰 698470271

2. Introduction Distributed Video Coding(DVC) is a new paradigm for video compression that enables low-complexity video encoding where the bulk of the computation is shifted to the decoder Based on Slepian-Wolf`s and Wyner-Ziv`s information theory

3. The DISCOVER CODEC DISCOVER(DIStributedCoding for Video sERvices) ,a European project funded under the European Commission IST FP6 programme Source code and document are available on http://www.discoverdvc.org

4. Architecture

5. Complexity Issues GOP = 2 http://www.discoverdvc.org

6. Problem Statement High time-delay in decoder which hinders its practical application in real-time system The decoder complexity arises mainly from two factor: - Iterative LDPC decoding process with a feedback channel - Motion estimation procedure in the Side Information(SI) generation

7. Goal Speed up DVC system by using a GPU implementation of the decoder - LDPC Part: G. Falcao, L. Sousa and V. Silva, “Massive parallelLDPC Decoding on GPU,” PPOPP 2008 - SI Generation Part: P. Wang, X. Liu, “A Parallel Algorithm for Side Information Generation in DVC,” ISIE 2009

8. Scheduling Paper study ( 1 week) Investigate DISCOVER source code (1 week) Implementation (5 weeks) Experiment Refinement Presentation

9. Expectable Result 希望能夠利用CUDA實作出一個Faster distributed video coding codec並與DISCOVER codec做coding time上的比較

10. Thank you !

Proposal

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