| 摘要 |
In the present invention, a replacement image generation unit (125) generates: first replacement image data in which a region over which bird's-eye image data is superimposed in first static image data is replaced by fixed image data, such first static image data being image data in which, from a fixed position, captured is a surface plate in a state before an article is disposed on the surface plate; and second replacement image data in which a region over which bird's-eye image data is superimposed in second static image data is replaced by fixed image data, such second static image data being image data in which, from a fixed position, captured is the surface plate in a state where the article has been disposed on the surface plate. A differential generation unit (127) generates a differential value between the first replacement image data and the second replacement image data. A determination unit (128) determines whether the article has been disposed at an established position on the surface plate on the basis of the differential value. |
