Implementation of a real time image rotation using B-spline interpolation on FPGA´s board

Author

Berthaud, C. ; Bourennane, E. ; Paindavoine, M. ; Milan, C.

Author_Institution

Aile des Sci. de l´´Ingenieur, Burgundy Univ., Dijon, France

fYear

1998

fDate

4-7 Oct 1998

Firstpage

995

Abstract

The aim of our work is to realize the implementation of a real-time high-quality image rotation on FPGA´s board. The method we used is based on M. Unser´s work (1993) and consists in applying a B-spline interpolator. The difficulty of this problem is due to the relatively weak integration capacity of FPGAs. To solve this problem, we have searched for determining the minimum number of bits to code the filter while keeping a good accuracy on filtering output. In this article, we remind a few definitions about B-spline functions and we present how we use B-spline interpolation for the image rotation problem. Then, we describe the way we calculate probability density function of the output error in order to determine the filter data coding

Keywords

digital filters; field programmable gate arrays; image coding; interpolation; probability; real-time systems; splines (mathematics); B-spline interpolation; FPGA´s board; filter; filter data coding; filtering output; output error; probability density function; real time image rotation; Chromium; Field programmable gate arrays; Filtering; Filters; Interpolation; Laboratories; Probability density function; Spline;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on

Conference_Location

Chicago, IL

Print_ISBN

0-8186-8821-1

Type

conf

DOI

10.1109/ICIP.1998.727417

Filename

727417