Abstract

Digitized images can be decomposed into a sum of images by use of a multiresolution wavelet expansion. Each image of the expansion can be analyzed with a parametric statistical model for the histogram associated with each expansion component. The statistical analysis of the individual expansion components is relatively simple, whereas the analysis of the original image is complicated. We show that the probability model for each expansion component can be approximated with a Laplace probability-density function for some important applications in digital mammography. An approach to random variable analysis based on the predominant low-frequency characteristics of the random fields provides theoretical support for the approximation. The theoretical framework of multiresolution analysis provides a natural extension for modeling many levels of image detail simultaneously for special cases. We demonstrate this with a noise field simulation and a mammographic application, where the expansion components are treated as independent random variables.

© 1998 Optical Society of America

Full Article  |  PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (24)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription