3D filtering technique in presence of additive noise in color videos implemented on DSP

Volodymyr I. Ponomaryov; Hector Montenegro-Monroy; Alfredo Palacios

doi:10.1117/12.2051426

15 May 2014 3D filtering technique in presence of additive noise in color videos implemented on DSP

Volodymyr I. Ponomaryov, Hector Montenegro-Monroy, Alfredo Palacios

Proceedings Volume 9139, Real-Time Image and Video Processing 2014; 91390D (2014) https://doi.org/10.1117/12.2051426
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

A filtering method for color videos contaminated by additive noise is presented. The proposed framework employs three filtering stages: spatial similarity filtering, neighboring frame denoising, and spatial post-processing smoothing. The difference with other state-of- the-art filtering methods, is that this approach, based on fuzzy logic, analyses basic and related gradient values between neighboring pixels into a 7 fi 7 sliding window in the vicinity of a central pixel in each of the RGB channels. Following, the similarity measures between the analogous pixels in the color bands are taken into account during the denoising. Next, two neighboring video frames are analyzed together estimating local motions between the frames using block matching procedure. In the final stage, the edges and smoothed areas are processed differently in a current frame during the post-processing filtering. Numerous simulations results confirm that this 3D fuzzy filter perform better than other state-of-the- art methods, such as: 3D-LLMMSE, WMVCE, RFMDAF, FDARTF G, VBM3D and NLM, in terms of objective criteria (PSNR, MAE, NCD and SSIM) as well as subjective perception via human vision system in the different color videos. An efficiency analysis of the designed and other mentioned filters have been performed on the DSPs TMS320 DM642 and TMS320DM648 by Texas Instruments through MATLAB and Simulink module showing that the novel 3D fuzzy filter can be used in real-time processing applications.

Citation Download Citation

Volodymyr I. Ponomaryov, Hector Montenegro-Monroy, and Alfredo Palacios "3D filtering technique in presence of additive noise in color videos implemented on DSP", Proc. SPIE 9139, Real-Time Image and Video Processing 2014, 91390D (15 May 2014); https://doi.org/10.1117/12.2051426

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KEYWORDS

Video

Digital signal processing

Fuzzy logic

Video processing

Image quality

MATLAB

Edge detection

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