A Textual Information Detection and Elimination System
for Secure Medical Image Distribution

James Ze Wang, Michel Bilello, Gio Wiederhold
Stanford University, Stanford, CA 94305
Abstract:

Before medical images can be distributed online, it is necessary for confidentiality reasons to eliminate text that appears in the image. This paper describes TIDE (Textual Information Detection and Elimination) system for secure medical image distribution. The algorithm uses Daubechies' wavelets to detect and eliminate areas of textual information within digital medical images. The system is practical for real-world applications, processing each 512x512 image in about 10 seconds. Besides its exceptional speed, the algorithm has demonstrated a remarkable accuracy when tested on various types of medical images, including X-ray and CT scans.


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Last Modified: 11-Mar-97 23:09:15 PST
© 1997, James Z. Wang