Moment invariants and quantization effects

This paper considers the effect of spatial quantization on several moment invariants. Of particular interest are the affine moment invariants, which have emerged in recent years as a useful tool for image reconstruction, image registration, and recognition of deformed objects. Traditional analysis a...

Full description

Saved in:
Bibliographic Details
Main Authors: Salarna, G.I., Abbott, A.L.
Format: Conference Proceeding
Language:English
Subjects:
Ambient intelligence
Digital systems
Electrical capacitance tomography
Error analysis
Image analysis
Image recognition
Image reconstruction
Image registration
Quantization
Read only memory
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper considers the effect of spatial quantization on several moment invariants. Of particular interest are the affine moment invariants, which have emerged in recent years as a useful tool for image reconstruction, image registration, and recognition of deformed objects. Traditional analysis assumes moments and moment invariants for images that are defined in the continuous domain. In practice, however, the digitization process introduces errors that violate the invariance assumption. This paper presents an analysis of quantization-induced error on (two-dimensional) Hu moment invariants and affine moment invariants, and on invariants derived from (one-dimensional) contour moments. Error bounds are given in several cases.
ISSN:1063-6919
1063-6919
DOI:10.1109/CVPR.1998.698603