Patent ID: 8854359
Filing Date: 2014-10-07
Classification: G06T

Abstract:
1. An image processing apparatus that projects three-dimensional image data to two-dimensional planar image data, the image processing apparatus comprising: an accumulation unit to accumulate the three-dimensional image data accompanied by position coordinates and pixel values; an acquisition unit to acquire a display parameter for the two-dimensional planar image data to be created, the display parameter including a zoom parameter for changing image size; a creation unit to create the two-dimensional planar image data from a part of the three-dimensional image data with the use of the display parameter by determining a half view angle of the three-dimensional image data from position coordinates corresponding to the center of the two-dimensional planar image data, and performing inverse projection transformation on the two-dimensional planar image data while changing, in accordance with a change in the half view angle caused by the change in image size specified by the zoom parameter, an inverse projection transformation method applied to position coordinates used to create the two-dimensional planar image data; and a display unit to display the created two-dimensional planar image data as a two-dimensional planar image.