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2021 Vol. 46, No. 8

Engineering Survey
Collaborative Inspection for the Sewer Pipe Network Using Pipe Capsules
Geodesy
A Method to Sophisticate the Water Vapor Tomography Model by Combining the ECMWF Grid Data
High-Accuracy Marine Gravity Measurement Data Processing and Analysis in the Baltic Sea
Accuracy Analysis of Clock Offset Compensation of Shanghai Sheshan VLBI Station
Application of Discrete Grey Model Based on Stepwise Ratio Sequence in the Satellite Clock Offset Prediction
Prediction of Navigation Satellite Clock Bias Considering Structure Characteristics of Single Difference Data
Cartography and Geoinformation
An Algorithm for Constructing Road Network Using Block Polygon Topology
Selection Method of Residential Point Features Constrained by Optimal Information Entropy
Micro Landform Classification Method of Grid DEM Based on Convolutional Neural Network
Urban Street Scale Population Estimation Based on Building Information
Analysis of Influence Factors for Unstable Approach in Fine⁃Grained Scale
A Simplification Algorithm for Edge Collapse of 3D Building Model Considering Angle Error
A Streaming Data Compression Method Based on Haar Wavelet Synopses
Photogrammetry and Remote Sensing
Land Cover Classification of Remote Sensing Image of Hubei Province by Using PSP Net
Face Age Estimation Based on Multi⁃layer Spare Representation
A Guided Method for Improving the Video Human Action Classification in Convolutional Neural Networks
A Real⁃Time Cross⁃Lens Continuous Tracking Method for Vertical Mounted Cameras
Piecewise Surface Fitting Method for Complex Image Registration of Interferometric Synthetic Aperture Sonar