| 摘要 |
<p>The present invention relates to a distortion detecting system and a distortion detecting method having a structure for efficiently detecting distortion of a projected image that is projected onto a projected surface by a projector. The distortion detecting system includes a photodetecting apparatus, and an analyzing apparatus. When a reference brightness image is projected onto the projected surface by the projector, the photodetecting apparatus forms the projected image on the projected surface onto the photosensitive surface of the photodetector, and outputs light intensity profile data that indicates a one-dimensional distribution of incident light intensity in each of a first direction and a second direction on an image for inspection formed on the photosensitive surface. The analyzing apparatus detects distortion of the projected image by analyzing the light intensity profile data in the respective first direction and second direction outputted from the photodetecting apparatus based on known information concerning the reference brightness image.</p> |
