Patent ID: 7212215
Filing Date: 2007-05-01
Classification: G06T

Abstract:
1. An image rendering apparatus, comprising: extracting means for determining that a given line part of an object depicted in a three-dimensional image is a visually important line part, the visually important line part being a contour line of the depicted object or a contour candidate line of the depicted object, and for extracting only data representing the visually important line part from data representing the three-dimensional image; image rendering means for rendering the three-dimensional image to generate respective pluralities of first values for each pixel in the three-dimensional image whereby a given one of the pluralities of first values is associated with a specific one of the pixels in the three-dimensional image, the rendered image including a portion in which aliasing occurs; antialiasing means for antialiasing only the extracted data to form an antialiased image portion associated with the visually important line part by generating respective pluralities of second values for each pixel in the visually important line part whereby a given one of the pluralities of second values is associated with a specific one of the pixels in the visually important line part; and overwriting means for overwriting by using the pluralities of second values associated with each pixel of the visually important line part to replace the pluralities of first values associated with each pixel of the visually important line part thereby at least reducing the aliasing of the portion of the rendered image.