Patents by Inventor Zhiwu Lu

Zhiwu Lu 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).

  • Method and system for interpolating missing picture elements in a single color component array obtained from a single color sensor
    Patent number: 5805217
    Abstract: A system and method for interpolating intensity values for a color component array are disclosed. Intensity values stored in a color component array are derived from intensity data sensed by a charge-coupled-device in a camera. First and second gradients are determined for the array elements which have no color intensity value corresponding to the color component stored in a first color component array. The gradients are used to select intensity values from the first color component array and a second color component array. The second color component array includes the intensity values for the color component which was sensed by the array element having no intensity value in the first color component array. Incorporation of intensity values of both the first and second color components reduces the likelihood of color artifacts.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: September 8, 1998
    Assignee: Iterated Systems, Inc.
    Inventors: Ning Lu, Zhiwu Lu