Parallel Multiscale Analysis of 2 D Image

نویسندگان

  • Serena Morigi
  • Alessandro Sarti
  • Fiorella Sgallari
چکیده

We discuss a recently presented model for multiscale analysis of space-time sequences and its parallel implementation. Our nonlinear partial diierential equation, representing the multiscale analysis, lters the sequence while keeping of the space-time coherent structures. It combines the ideas of regularized Perona-Malik anisotropic diiusion and Galilean invariant movie multiscale analysis of Alvarez, Guichard, Lions and Morel. The huge amount of data and the computational complexity of real problems need the use of massively parallel architectures. Computational results obtained with our parallel implementation on image sequences taken from test and medical problems are presented.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Multiscale Markov random field models for parallel image classification

Beküldte Németh Gábor 2. k, 2014-07-22 15:07 Kato Z [1], Berthod M [2], Zerubia J [3]. Multiscale Markov random field models for parallel image classification [4]. In: *Analysis *IEEEComputer S [5], *Intelligence *M [6], editors. Fourth International Conference on Computer Vision, ICCV 1993, Berlin, Germany, 11-14 May, 1993, Proceedings. Los Alamitos: IEEE; 1993. 2. p. 253-257p. Doktori iskola ...

متن کامل

Persian Printed Document Analysis and Page Segmentation

This paper presents, a hybrid method, low-resolution and high-resolution, for Persian page segmentation. In the low-resolution page segmentation, a pyramidal image structure is constructed for multiscale analysis and segments document image to a set of regions. By high-resolution page segmentation, by connected components analysis, each region is segmented to homogeneous regions and identifyi...

متن کامل

Coherent Multiscale Image Processing using Quaternion Wavelets

Coherent Multiscale Image Processing using Quaternion Wavelets by Wai Lam Chan This thesis develops a quaternion wavelet transform (QWT) as a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant tight frame representation whose coefficients sport a magnitude and three phases: two phases encode local image shifts while the third contains textural informati...

متن کامل

1 Multiscale Object - Specific Analysis ( MOSA ) : An Integration of Ecological Theory , Remote Sensing , and Spatial Modelling

It is now widely recognized that landscapes are complex systems composed of multiscale hierarchically organized entities that interact within unique spatial and temporal scales. These interactions result in scale-dependent spatial patterns that visually change, depending upon their scale of observation. Remote sensing platforms represent the primary data source from which such landscape pattern...

متن کامل

Multiscale Analysis of Transverse Cracking in Cross-Ply Laminated Beams Using the Layerwise Theory

A finite element model based on the layerwise theory is developed for the analysis of transverse cracking in cross-ply laminated beams. The numerical model is developed using the layerwise theory of Reddy, and the von Kármán type nonlinear strain field is adopted to accommodate the moderately large rotations of the beam. The finite element beam model is verified by comparing the present numeric...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999