Detection of the presence of aliasing in digital image sequences

B. Cohen, I. Dinstein

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

Resolution enhancement of an image from a sequence of digital images is possible only if aliasing effects are present. In this work we address the issue of detecting presence of aliasing within a digital image sequence. Given two digital images of the same scene with sub-pixel relative translation between them, we examine the absolute difference between the interpolated versions of these images. If the two images contain no aliasing effects, the difference between them will be random, solely due to noise. If aliasing is present, the difference between the two interpolated images will be highly correlated to the high-frequency elements of each interpolated image. An algorithm for the detection of the presence of aliasing based on this phenomenon is proposed. This algorithm is also able to estimate the extent of aliasing.

Original languageEnglish
Pages634-637
Number of pages4
StatePublished - 1 Jan 2001
EventIEEE International Conference on Image Processing (ICIP) 2001 - Thessaloniki, Greece
Duration: 7 Oct 200110 Oct 2001

Conference

ConferenceIEEE International Conference on Image Processing (ICIP) 2001
Country/TerritoryGreece
CityThessaloniki
Period7/10/0110/10/01

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