eprintid: 12680
rev_number: 11
eprint_status: archive
userid: 1
dir: disk0/00/01/26/80
datestamp: 2011-11-16 13:23:20
lastmod: 2015-04-22 11:53:26
status_changed: 2012-08-15 09:02:32
type: report
metadata_visibility: show
creators_name: Scharr, Hanno
title: Optimal separable interpolation of color images with bayer array format
ispublished: pub
subjects: 004
divisions: 708000
keywords: Optimal interpolation , data reduction , Bayer array format , phase error , sampling
cterms_swd: Farbbildverarbeitung
cterms_swd: Interpolation
cterms_swd: Bildverarbeitung
abstract: In this paper new separable interpolation schemes for the channels of a single chip color camera are presented. The pixel grid of the camera is called "Bayer" pattern (compare [6] and fig. 1). As different colors are on different grids interpolation of all channels onto one common grid has to be performed. An analysis of the sampling scheme of this camera chip restricts the interpolation methods to filters on inter pixel positions in the middle of the processed color channel grids. Additionally this analysis defines the optimal resolution of the interpolated data which is of high interest concerning data compression. For this kind of interpolation optimal filters are presented that eliminate any possibility of phase errors. Thereby pixel values are supposed to be point samples of an intensity signal convolved by the average pixel area of the chip.
abstract_translated_lang: eng
date: 2000
date_type: published
id_scheme: DOI
id_number: 10.11588/heidok.00012680
ppn_swb: 1651060851
own_urn: urn:nbn:de:bsz:16-opus-126805
language: eng
bibsort: SCHARRHANNOPTIMALSEP2000
full_text_status: public
citation:   Scharr, Hanno  (2000) Optimal separable interpolation of color images with bayer array format.  [Other]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/12680/1/ScharrTR_Bayer_2000.pdf