| 摘要 |
PURPOSE: To express a three-dimensional object with more reality by executing interpolation by considering that a remote place is displayed smaller for displaying the object with the gradation of color tone, etc. CONSTITUTION: A means for interpolating a pixel value is provided in a non- linear screen perspective space. A perspective interpolation unit 210 operates an expression for obtaining a rate for a total distance in the perspective space and an expression for interpolating the corresponding shading parameter of an input point based on the calculated rate and two interpolation points to be the base of interpolation. Thus, display points are scaled in accordance with perspective values for every display point and perspective projection at the time of interpolating the value of a displayed pixel can be taken into consideration. |
