Company Filing History:
3 out of 1,942 
1 out of 248 
1 Years Active: 1998-2014
Title: Chein-I Chang: Innovator in Video Processing and Hyperspectral Imaging
Introduction
Chein-I Chang is a notable inventor based in Ellicott City, MD (US). He has made significant contributions to the fields of video processing and hyperspectral imaging, holding a total of 5 patents. His work focuses on innovative techniques that enhance the efficiency and effectiveness of video transmission and data extraction from hyperspectral images.
Latest Patents
One of his latest patents involves video transmission by decoupling color components. Techniques are provided for receiving color video frames that comprise grayscale and color components. The grayscale components are extracted as each color video frame is received, resulting in grayscale video frames that are transmitted at a first transmission rate. Additionally, color components for selected color video frames are periodically fused with selected grayscale video frames to create fused color video frames, which are transmitted at a second transmission rate interspersed with the grayscale video frames.
Another significant patent focuses on maximum simplex volume criterion-based endmember extraction algorithms. This patent outlines algorithms and processes to extract endmembers from hyperspectral image data in real time. The Simplex Growing Algorithm is effective in estimating a number of endmembers to be generated and selecting initial endmembers as a simplex of members. The algorithm continues to add endmembers to maximize the simplex volume until the desired number is reached.
Career Highlights
Chein-I Chang has worked with the University System of Maryland, where he has contributed to various research initiatives. His expertise in video processing and hyperspectral imaging has positioned him as a valuable asset in academic and research settings.
Collaborations
Throughout his career, Chein-I has collaborated with notable individuals such as Jianwei Wang and Youguang Xu. These collaborations have furthered advancements in his areas of expertise and have led to innovative solutions in technology.
Conclusion
Chein-I Chang's contributions to video processing and hyperspectral imaging demonstrate his commitment to innovation and excellence in technology. His patents reflect a deep understanding of complex systems and a drive to improve existing methodologies.