Adaptive Gradient-Based and Anisotropic Diffusion Equation Filtering Algorithm for Microscopic Image Preprocessing
نویسندگان
چکیده
منابع مشابه
Adaptive Gradient-Based and Anisotropic Diffusion Equation Filtering Algorithm for Microscopic Image Preprocessing
In image acquisition process, the quality of microscopic images will be degraded by electrical noise, quantizing noise, light illumination etc. Hence, image preprocessing is necessary and important to improve the quality. The background noise and pulse noise are two common types of noise existing in microscopic images. In this paper, a gradient-based anisotropic filtering algorithm was proposed...
متن کاملStructure adaptive anisotropic image filtering
Noise filtering of images is essentially a smoothing process, and it is an issue that has been addressed for many years. The most commonly used low-pass filtering methods blur important image structures such as edges and lines, and thus reduce image contrast and damage image fidelity. This paper presents a structure adaptive anisotropic filtering technique with its application to processing mag...
متن کاملLevel set based Volumetric Anisotropic Diffusion for 3D Image Filtering
We present an anisotropic diffusion model for volumetric image filtering. Our 3D anisotropic diffusion tensor is constructed to enhance 1D features (curves) and 2D features(surfaces). Bilateral prefiltering is employed to construct more accurate anisotropic diffusion tensor. An efficient parallel implementation has been done on a PC cluster, the performance and speed-up are reported also.
متن کاملHybrid regularizers-based adaptive anisotropic diffusion for image denoising
To eliminate the staircasing effect for total variation filter and synchronously avoid the edges blurring for fourth-order PDE filter, a hybrid regularizers-based adaptive anisotropic diffusion is proposed for image denoising. In the proposed model, the [Formula: see text]-norm is considered as the fidelity term and the regularization term is composed of a total variation regularization and a f...
متن کاملImage Anisotropic Diffusion Based on Gradient Vector Flow Fields
In this paper, the gradient vector flow fields are introduced in the image anisotropic diffusion, and the shock filter, mean curvature flow and Perona-Malik equation are reformulated respectively in the context of this flow fields. Many advantages over the original models can be obtained, such as numerical stability, a large capture range, and computational simplification etc. In addition, the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Signal and Information Processing
سال: 2013
ISSN: 2159-4465,2159-4481
DOI: 10.4236/jsip.2013.41010