Title :
FPGA Implementation of the Bilinear Interpolation Algorithm for Image Demosaicking
Author :
Fuentes, Iván Olaf Hernández ; Bravo-Zanoguera, M.E. ; Yáñez, Guillermo Galaviz
Author_Institution :
Fac. de Ing., Univ. Autonoma de Baja California, Mexicali, Mexico
Abstract :
Current image sensors offer a raw output that incorporates a bayer color filter pattern, and additional processing is required to obtain a full color image. This paper presents a bilinear interpolation algorithm to demosaick images with bayer color pattern; the algorithm is implemented in a single field programmable gate array (FPGA) device using a pipelined architecture. A comparison between images obtained with the FGPA-based interpolation and a software-based interpolation using Matlab demosaicking function is presented. The proposed FPGA demosaick algorithm achieves reasonable image quality, and it is an economic alternative for smart camera devices.
Keywords :
field programmable gate arrays; filtering theory; image colour analysis; image reconstruction; image sensors; interpolation; pipeline processing; FPGA implementation; Matlab function; bayer color filter pattern; bilinear interpolation algorithm; field programmable gate array; image demosaicking; image sensor; pipelined architecture; smart camera device; Application software; Communication system control; Field programmable gate arrays; Interpolation; Organizing; Power electronics; Power engineering and energy; Process control; Robots; Signal processing; Bilinear Interpolation; FPGA; Pipelined processing;
Conference_Titel :
Electrical, Communications, and Computers, 2009. CONIELECOMP 2009. International Conference on
Conference_Location :
Cholula, Puebla
Print_ISBN :
978-0-7695-3587-6
Electronic_ISBN :
978-0-7695-3587-6
DOI :
10.1109/CONIELECOMP.2009.47
