一种新颖的基于多探测器数据的城市图象边缘提取算法(英文)

来源 :电路与系统学报 | 被引量 : 0次 | 上传用户:jiangyao366
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
建设数字城市需要建立准确而又详细的城市三维数据库。对测得图像数据进行分割是建立三维模型很重要的一步。本文针对城市中深度图像和灰度图像的特点,先提出了一种利用灰度信息的深度图像线性加权插值方法,利用灰度图像信息插值深度数据生成深度图像,进而提出了一种基于深度边缘图像与灰度边缘图像的融合的边缘提取方法。实验证明,本算法得到的结果明显好于用单传感器数据进行边缘提取的结果。
其他文献
Most of Chinas wetland areas are located in the Sanjiang Plain.This area has 207×10 4 hm 2 of wet and low lying farmland,of which 59% is cropped.During the 1970s and 1980s,the Chinese government o
期刊
This paper advances a new simplified formula for estimating variance components ,sums up the basic law to calculate the weights of observed values and a circulation method using the increaments of wei
期刊
This paper calculates the parameters of image position and orientation,proposes a mathematical model and adopts a new method with three steps of transformations based on parallel ray projection.Every
期刊
This paper investigates the mathematic features of non-linear models and discusses the processing way of non-linear factors which contributes to the non-linearity of a non-linear model. On the basis o
期刊
Rough set is a new approach to uncertainties in spatial analysis.In this paper,rough set symbols are simplified and standardized in terms of rough interpretation and specialized indication.Rough spati
期刊
On the basis of stereo image analysis, the change detection of man-made objects in urban areas is introduced. Information of the height of man-made objects can be applied to reinforce
期刊
This paper puts forward a new conception:model warehouse,analyzes the reason why model warehouse appears and introduces the characteristics and architecture of model warehouse.Last,this paper points
期刊
The theoretical framework of visual simulation in virtual reality is discussed. The new concept of visual image space is supposed. On the basis of visual image space, in vis
期刊
Automatic generalization of geographic information is the core of multi_scale representation of spatial data,but the scale_dependent generalization methods are far from abundant because of its extreme
期刊
This paper presents a component object model (COM) based framework for managing, analyzing and visualizing massive multi-scale digital elevation models (DEMs). The framework consists of a data managem
期刊