| 摘要 |
PURPOSE:To obtain a correction function for correcting distortion from image data. CONSTITUTION:A checkered characteristic pattern is picked up by an image input device 10 and feature points (intersection) are detected from the image pickup data. A mapping function obtained when a pinhole camera is used as a television camera is generated from an array of feature points nearby the center and the position on a screen. The reference position of the feature points as to the whole screen is calculated from the mapping function and compared with the actual position on the screen to calculate the correction function, which is stored in a correction function generating device 32. Then, the input image is normally corrected with the correction function and outputted to an image output device 20. |
