Company Filing History:
1 out of 59 
1 out of 1 
1 out of 1 Years Active: 1996-2000
Title: Innovations of Chung-Fu Chang
Introduction
Chung-Fu Chang is an accomplished inventor based in Litchfield Park, AZ (US). He holds 2 patents that showcase his contributions to the fields of medical imaging and fingerprint classification. His innovative methods have the potential to enhance both medical diagnostics and security systems.
Latest Patents
One of his latest patents is a "Method for Orienting Electronic Medical Images." This method provides crucial information regarding the orientation of chest and abdomen images on x-ray films. It involves optically reading chest images to determine whether they are front or side images, as well as identifying the orientation and handedness of the image. Additionally, it can locate the heart in a chest front image and ascertain the direction the patient is facing in a chest side image. The method also determines if an image is abdominal and the patient's orientation concerning the image plane.
Another significant patent is the "Fingerprint Classification System." This technique defines fingerprints by analyzing areas containing patterns of ridges and valleys. It determines at least one local pattern based on the locations and characterizations of the fingerprint, indicated by rapid changes in the direction of the ridges and valleys. The classification of fingerprints is based on the relative locations and characterizations of these local patterns. The identification process can utilize minutiae location and angles, significantly reducing the amount of data required to store fingerprint information.
Career Highlights
Chung-Fu Chang has worked with notable companies such as Loral Corporation and Lockheed Martin. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Some of his coworkers include Edward E Hilbert and Karen Pigott, who have likely contributed to his projects and innovations.
Conclusion
Chung-Fu Chang's work in medical imaging and fingerprint classification demonstrates his significant impact on technology and innovation. His patents reflect a commitment to improving diagnostic methods and security systems.