Patents by Inventor Yushing T. Tsai

Yushing T. Tsai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Image compression with color interpolation for a single sensor image system
    Patent number: 5172227
    Abstract: In accordance with the present invention, the R,G,B color image signals from a single sensor having a color filter array are all transformed to .GAMMA.-space by changing them to R.sup.1/.GAMMA., G.sup.1/.GAMMA., B.sup.1/.GAMMA., respectively, where .GAMMA. is approximately 2.4. In this space, all operations such as color differencing, interpolation of those missing pixels required for color differencing, compression, decompression, edge enhancement and final interpolation of all missing pixels are performed without further transformation of the image signals. For the same final bit rate, noise in the reproduced image is reduced by refraining from interpolating the missing color pixels prior to compression of the image data.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: December 15, 1992
    Assignee: Eastman Kodak Company
    Inventors: Yushing T. Tsai, Scott J. Daly, Majid Rabbani