Title :
SAR image despeckling using improved detail-preserving anisotropic diffusion
Author :
Lei Zhu ; Xiaotian Zhao ; Meihua Gu
Author_Institution :
Electron. & Inf. Coll., Xi´an Polytech. Univ., Xi´an, China
Abstract :
The well-known detail-preserving anisotropic diffusion (DPAD) for smoothing speckle noise in synthetic aperture radar (SAR) images suffers from poor despeckling performance near edges and serious blocking artefacts in homogeneous regions. The DPAD is extended to effectively alleviate the aforementioned problems by embedding the mean curvature motion controlled by an adaptive coupling function into the DPAD´s diffusion equation.
Keywords :
image denoising; radar imaging; smoothing methods; synthetic aperture radar; DPAD diffusion equation; MCM; SAR image despeckling; adaptive coupling function; blocking artefact; detail-preserving anisotropic diffusion; homogeneous regions; mean curvature motion; speckle noise smoothing; synthetic aperture radar;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0293
