Feature-preserving interpolation and filtering of environmental time series

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Feature-preserving interpolation and filtering of environmental time series

We propose a method for filling gaps and removing interferences in time series for applications involving continuous monitoring of environmental variables. The approach is non-parametric and based on an iterative pattern-matching between the affected and the valid parts of the time series. It considers several variables jointly in the pattern matching process and allows preserving linear or non...

متن کامل

Feature-Preserving Volume Filtering

In this paper a feature-preserving volume filtering method is presented. The basic idea is to minimize a threecomponent global error function penalizing the density and gradient errors and the curvature of the unknown filtered function. The optimization problem leads to a large linear equation system defined by a sparse coefficient matrix. We will show that such an equation system can be effici...

متن کامل

Vector Quantization for Feature-Preserving Volume Filtering

In volume-rendering applications the input data is usually acquired by measuring some kind of physical property. The accuracy of the measurement strongly influences the quality of images produced by recent 3D visualization techniques. In practice, however, a high signal-to-noise ratio cannot always be ensured. For example, in virtual colonoscopy, CT scans are generated preferably at low radiati...

متن کامل

Natural Interpolation of Time Series

To interpolate data which is sampled in finite, discrete time steps into a continuous signal e.g. for resampling, normally a model has to be introduced for this purpose, like linear interpolation, splines, etc. In this paper we attempt to derive a natural method of interpolation, where the correct model is derived from the data itself, using some general assumptions about the underlying process...

متن کامل

Feature Preserving Image Interpolation and Enhancement Using Adaptive Bidirectional Flow

Image interpolation is a common problem in imaging applications. However, most interpolation algorithms in existence suffer visually to some extent the effects of blurred edges and jagged artifacts in the image. This paper presents an adaptive feature preserving bidirectional flow process, where an inverse diffusion is performed to enhance edges along the normal directions to the isophote lines...

متن کامل

ذخیره 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: Environmental Modelling & Software

سال: 2015

ISSN: 1364-8152

DOI: 10.1016/j.envsoft.2015.07.001