| 摘要 |
The position of a feature within an image is determined by determining an initial estimate of the feature position to within a fraction of a pixel, translating the feature by an amount equal to that fraction of a pixel, determining a further estimate of the translated feature position to within a fraction of a pixel and summing the pixel fraction of the previous estimate of the position to arrive at a refined estimate of the feature position. Two or more images of the feature, captured with different image capture devices, can be used to determine the 3-dimensional coordinates of the feature. The method may be used to monitor an aircraft structure by monitoring movement of a target within the structure. |
