The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 1994
Filed:
Oct. 30, 1991
Applicant:
Inventors:
Tetsuzo Kuragano, Tokyo, JP;
Saga Fumie, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395126 ; 395132 ; 395131 ;
Abstract
A method for displaying an image of an object surface on a screen in which a non-linear transformation is applied to the luminance value at points on the surface of the object in accordance with an illumination model, accounting for only ambient light and diffusedly reflected light. Lighter and darker portions of the surface are emphasized to express glossiness of the surface in a simulated manner. Color of the image can be designated by selecting a point in a chart having a fixed value of lightness of a color cube, the color cube having coordinate axes representing hue, lightness, and saturation of color.