公开(公告)号：US20060077355A1

公开(公告)日：2006-04-13

申请号：US11273840

申请日：2005-11-15

Applicant: Knut Krogstad ,  Johan Litleskare

Inventor： Knut Krogstad ,  Johan Litleskare

IPC: G03B21/14 ,  H04N3/26

CPC classification number: H04N9/3147 ,  H04N5/74 ,  H04N9/12 ,  H04N9/31 ,  H04N9/3185 ,  H04N2005/745 ,  H04N2005/7466

Abstract: A geometry correction module for a fixed pixel raster projector to project an image onto a projection surface is provided. The geometry correction module includes a receiver and a geometry corrector. The receiver collects an input pixels grid that represents an input image. The geometry corrector generates an output pixels grid representing an output image that compensates for the geometry of the projection surface by repositioning image data interpolated from at least two input pixels. The output image represents an altered input image that when projected onto the projection surface will display a correctly proportioned input image. A method of correcting geometry distortion when projecting an image is also provided.

Abstract translation: 提供了一种用于将图像投影到投影表面上的固定像素光栅投影仪的几何校正模块。 几何校正模块包括接收器和几何校正器。 接收器收集表示输入图像的输入像素网格。 几何校正器生成表示通过重新定位从至少两个输入像素内插的图像数据来补偿投影表面的几何的输出图像的输出像素网格。 输出图像表示改变的输入图像，当投影到投影面上时将显示正确比例的输入图像。 还提供了在投影图像时校正几何失真的方法。