Earticle

초록

영어

The ultrasound image sequences are not only majorly contaminated by multiplicative noises but they are also usually contaminated with additive noises. As in the past few decades, there were some works, which had focused on removing the noises from ultrasound images, such as in the JY model [1] and in the variational model, which were able to remove both types of noises. However, denoising these noises from the ultrasound image sequence is a time-consuming process that occurred from using fixed-point iterative method. From our investigation, the most time-consuming process part of the denoising process is the Gauss-Seidel. By parallelizing these processes with modern multi-core and many-core processor, the denoising ultrasound image in real-time is possible. In this study, we propose the modified strategy from [2] for managing threads and propose the modified state-based Gauss-Seidel method from [16] for GPUs. Our proposed model can retain the frame order, and get the satisfactory frame rate (about 23.33 fps). The proposed strategy boosts the speedup of the frame denoising to 13.80 times compare to the sequential computation.

목차

Abstract
 1. Introduction
 2. Backgrounds
  2.1. New Variational Model Noise Removal Algorithm
  2.2. Compute Unified Device Architecture (CUDA)
  2.3. Sliding Window Gauss-Seidel
  2.4. State-based Gauss-Seidel
 3. Proposed Strategy
  3.1. Investigation of time used in frame denoising.
  3.2. Modification for State-based Gauss-Seidel for GPU
  3.3. Thread Management Strategy
 4. Experiment Results
  4.1. Denoising Model Validation
  4.2. Performance Results
  4.3. Denoised Image sequence Quality
 5. Conclusion and Future Work
 Acknowledgements
 References

키워드

저자

• Banpot Dolwithayakul [ Department of Computing, Faculty of Science, Silpakorn University, Thailand ]
• Chantana Chantrapornchai [ Department of Computer Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand and Department of Computing, Faculty of Science, Silpakorn University, Thailand ]
• Noppadol Chumchob [ Department of Mathematics, Faculty of Science, Silpakorn University and Centre of Excellence in Mathematics CHE, Si Ayudthaya Rd., Bangkok, Thailand ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605