NDLI: Semi-guided bilateral filter

Content Provider	IET Digital Library
Author	Thai, Ba nasrawi, Mukhalad Al Deng, Guang Su, Zhuo
Abstract	The bilateral filter (BF) is a non-linear filter that spatially smooths images with awareness of large structures such as edges. The level of smoothness applied to a pixel is constrained by a photometric weight, which can be obtained from the same image to be filtered (in case of the original BF) or from a guided image (in case of the joint/cross BF). In this study, the authors propose a new filter called the semi-guided BF which is derived from solving a non-linear constraint least square problem. The proposed filter's photometric weight incorporates information from the image to be filtered and the guided image. They propose a fast implementation of the filter based on layer approximation. They also study the iterative application of the proposed filter and show that the filter can preserve large structures while smoothing out small structures. This makes the proposed filter an efficient and effective tool for structure-aware image smoothing. Experimental results have demonstrated that performance of the proposed filter is comparable to those of the state-of-the-art algorithms.
Starting Page	512
Ending Page	521
Page Count	10
ISSN	17519659
Volume Number	11
e-ISSN	17519667
Issue Number	Issue 7, Jul (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ipr/11/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2016.0418
Journal	IET Image Processing
Publisher Date	2017-05-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Computer Vision And Image Processing Technique Filtering Method in Signal Processing Guided Image Image Processing Interpolation And Function Approximation Iterative Application Iterative Method Layer Approximation Least Squares Approximation Nonlinear Constraint Least Square Problem Nonlinear Filter Numerical Analysis Optical, Image And Video Signal Processing Photometric Weight Semi Guided Bilateral Filter Structure-aware Image Smoothing
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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