关键词: 增量识别, 伪增量, 时空边界, 不一致性

Abstract:

Spurious increments caused by spatio-temporal boundaries exist inevitably in the results of increments recognition with two database, which has seriously reduced the accuracy of the incremental information. However, the current methods cannot distinct the spurious increments appeared as slivers caused by spatio-temporal boundaries, and the true increments caused by the slivers entities. Aim to solve this problem, a new method of increments recognition and calculation is proposed in this paper. And firstly, distance between spatio-temporal boundaries is used to quantified the inconsistency of spatio-temporal boundaries, and then the distance is compared with the updating threshold to distinguish the spurious increments and the true increments. Finally, the method is applied to the incements recognition of spatial database at the scale of 1: 50 000. The experimental results show that our method is valid and has stronger practicality.

Key words: increments recognition, spurious increments, spatio-temporal boundary, Inconsistency