학술논문

Targeted video denoising for decompressed videos
Document Type
Conference
Source
2017 IEEE International Conference on Image Processing (ICIP) Image Processing (ICIP), 2017 IEEE International Conference on. :2981-2985 Sep, 2017
Subject
Computing and Processing
Signal Processing and Analysis
Noise reduction
Databases
Image denoising
Complexity theory
Image coding
Video sequences
Prediction algorithms
decompressed video
targeted video denoising
patch-based enhancement
denoising
motion vectors
Language
ISSN
2381-8549
Abstract
The paradigm of using clean patches from a targeted external database to design optimal denoising filters, called Targeted Image Denoising (TID), has been shown to outperform state-of-the-art denoising algorithms such as BM3D. In this paper, we introduce Targeted Video Denoising algorithm that extends the TID algorithm to denoise decompressed video without adding complexity. Our algorithm leverages the motion vectors generated during compression to establish temporal coherency between patches in consecutive frames. We test our algorithm on three decompressed video sequences with different foregrounds, backgrounds and movement patterns, and different noise level settings. Experimental results show that our approach is effective and performs better than original TID and the state-of-the-art video denoising algorithm.