| 摘要 |
<p>Camera parameter calculating means (112) calculates a convergence angle and baseline length on the basis of a preset distance inputted by the user and outputs them to imaging means (102). Ineffective area calculating means (113) calculates the ineffective area of a video being imaged after receiving the preset distance, the baseline length and the performance information field angle from image recording means and outputs the ineffective area information to the imaging means (102). The image recording means (116) composed of two cameras can vary a video area according to the ineffective area information inputted from the ineffective area calculating means (113). Thus, an imaging device can set a distance between a arbitrary assumed position and the image recording means, automatically calculate the ineffective area in a parallel imaging in which optical axes of two cameras are parallel to each other, and switch the imaging to a cross imaging in which optical axes of the two cameras cross each other if the ratio of the ineffective area is greater than a predetermined threshold.</p> |
