Bayer bilateral denoising on TriMedia3270

H. Phelippeau; M. Akil; B. Dias Rodrigues; H. Talbot; S. Bara

doi:10.1117/12.812330

4 February 2009 Bayer bilateral denoising on TriMedia3270

H. Phelippeau, M. Akil, B. Dias Rodrigues, H. Talbot, S. Bara

Proceedings Volume 7244, Real-Time Image and Video Processing 2009; 72440A (2009) https://doi.org/10.1117/12.812330
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States

Abstract

Digital cameras are now commonly included in several digital devices such as mobile phones. They are present everywhere and have become the principal image capturing tool. Inherent to light and semiconductors properties, sensor noise [10] continues to be an important factor of image quality [12], especially in low light conditions. Removing the noise with mathematical solutions appears thus unavoidable to obtain an acceptable image quality. However, embedded devices are limited by processing capabilities and power consumption and thus cannot make use of the full range of complex mathematical noise removing solutions. The bilateral filter [6] appears to be an interesting compromise between implementation complexity and noise removing performances. Especially, the Bayer [5] bilateral filter proposed in [11] is well adapted for single sensor devices. In this paper, we simulate and optimize the Bayer bilateral filter execution on a common media-processor: the TM3270 [4] from the NXP Semiconductors TriMedia family. To do so we use the TriMedia Compilation System (TCS). We applied common optimization techniques (such as LUT, loop unrolling, convenient data type representation) as well as custom TriMedia operations. We finally propose a new Bayer bilateral filter formulation dedicated to the TM3270 architecture that yields an execution improvement of 99.6% compared to the naïve version. This improvement results in real-time video processing at VGA resolution at the 350MHz clock rate.

Citation Download Citation

H. Phelippeau, M. Akil, B. Dias Rodrigues, H. Talbot, and S. Bara "Bayer bilateral denoising on TriMedia3270", Proc. SPIE 7244, Real-Time Image and Video Processing 2009, 72440A (4 February 2009); https://doi.org/10.1117/12.812330

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available