Provides a multi-threshold cell segmentation method for solving the difficult problems choosing the threshold because there is no obvious apex and valley value in marrow cell slice image histogram based on spacial scale filter. 以空间尺度滤波为基础,提出了一种多阈值的细胞分割方法,解决了骨髓细胞切片图像直方图没有明显峰谷值从而导致阈值选取困难的问题。
Influence of Changes in Means of Transport on Urban Spacial Scale 交通方式变更对城市空间尺度的影响
On a large spacial scale, remote sensing has widely been used to detect and monitor forest damage caused by insect pests. 在大的空间尺度上,遥感数据早已被广泛有效地用于检测森林病虫害所引起的失叶现象。
Abstract TM data because of its multispectral bands and continous spacial coverage as well as good price, is widely used in small and middle scale geological mapping. 卫星TM数据以其丰富的光谱和连续的空间信息以及合理的市场价格被广泛地应用在中、小比例尺的金矿勘查中。
A regional central city should be developed in terms of spacial scale, economic strength, comprehensive functions and influence. 区域中心城市应由空间规模、经济实力、综合功能和辐射能力等四个维度构成。
But the interdecadal background has few impacts on the temporal and spacial modes of summer rainfalls in China on the interannual scale. 年代际背景对中国夏季降水年际空间模态的影响不明显。