| 摘要 |
The invention relates to a device (1) comprising: means (3) for receiving an image of a pre-determined area, containing the heights of points therein; means (8) for determining the directions of flow; means (9) for finding source points that can be used to create a binary image; means (11) for filtering the binary image; processing means (13) that can be used to obtain a set of lines formed by source points; means (15) for creating, from said set of lines, a set of sequences of segments illustrating the ridge lines of the area; and means (19) for transmitting said set of sequences of segments to user means (22). |
