摘要
针对现有方法不能区分哪些狭长多边形是边界不一致性造成的伪增量、哪些是地物本身呈狭长形态的真增量这一问题,研究提出一种新的增量识别计算方法。该方法通过对时空目标边界的不一致性进行量化,并对量化结果进行判断,从而区分出真伪增量,并结合1∶5万基础地理数据的增量识别进行了试验验证。研究与试验表明,该方法能够更加准确地识别增量,提高了变化分析的精度。
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.Aiming to solve this problem,a new method of increments recognition and calculation is proposed.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 result shows the proposed is valid.
出处
《测绘学报》
EI
CSCD
北大核心
2014年第4期411-418,共8页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金(41301416
41161061)
关键词
增量识别
伪增量
时空边界
不一致性
increments recognition
spurious increments
spatio-temporal boundaries
inconsistency
