Patents by Inventor Yuichi Hayatsu

Yuichi Hayatsu 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).

  • Patent number: 6181384
    Abstract: An image converting apparatus for converting an image of an input video signal into an image with a metallic luster and representing the metallic luster with parameters designated corresponding to the input image. The apparatus is based on the concept that a model of reflected light can represented with a model of reflected light of diffusion reflection and mirror-surface reflection and that even though the resultant model of reflected light is three-dimensional data, assuming that the brightness of an input video signal linearly varies, the model can be represented with brightness data. A color correction circuit 5 has a look-up table with which calculations for generating an image with a metallic luster are performed with the brightness data and the designated parameters. A matrix calculating circuit extracts a luminous signal component from the input video signal. A pre-modifying circuit adjusts the amplitude.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: January 30, 2001
    Assignee: Sony Corporation
    Inventors: Masafumi Kurashige, Osamu Watanabe, Kazumasa Ito, Teruyuki Nakahashi, Yuichi Hayatsu