System for Efficient and Secure Distribution
of Medical Images on the Internet
James Ze Wang, Gio Wiederhold
Stanford University, Stanford, CA 94305
Abstract:
Because of the high compressibility of the medical images, data
compression is desirable for digital storage despite the availability
of inexpensive hardware for mass storage. A progressive transmission
algorithm with automatic security filtering features for on-line
medical image distribution using Daubechies' wavelets has been
developed and is discussed in this paper. The system is practical for
real-world applications, processing and coding each 12-bit image of
size 512 x 512 within 2 seconds on a Pentium Pro. Besides its
exceptional speed, the security filter has demonstrated a remarkable
accuracy in detecting sensitive textual information within current or
digitized previous medical images. The algorithm is of linear run
time.
Full Paper in Color
(PostScript)
(PDF)
Copyright 1998 AMIA. Personal use of this material is
permitted. However, permission to reprint/republish this material for
advertising or promotional purposes or for creating new collective
works for resale or redistribution to servers or lists, or to reuse
any copyrighted component of this work in other works, must be
obtained from the AMIA.
Last Modified:
27-Mar-98 11:05:10 PST
© 1998, James Z. Wang