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A SWEEP-PLANE ALGORITHM FOR THE SIMPLIFICATION OF 3D BUILDING MODELS IN THE APPLICATION SCENARIO OF WIND SIMULATIONS
3D City models Automated Processing BRep
2018/11/9
As the number of virtual 3D city models is steadily increasing, so are the possible applications that take advantage of them. 3D models can be used for applications that range from simple graphic visu...
A VOXEL-BASED FILTERING ALGORITHM FOR MOBILE LIDAR DATA
Mobile LiDAR filtering voxelization upward growing curvature
2018/5/15
This paper presents a stepwise voxel-based filtering algorithm for mobile LiDAR data. In the first step, to improve computational efficiency, mobile LiDAR points, in xy-plane, are first partitioned in...
A GLOBAL REGISTRATION ALGORITHM OF THE SINGLE-CLOSED RING MULTI-STATIONS POINT CLOUD
Terrestrial laser scanning Multi-stations registration ICP Global registration Single-Closed Ring Point Cloud
2018/5/16
Aimed at the global registration problem of the single-closed ring multi-stations point cloud, a formula in order to calculate the error of rotation matrix was constructed according to the definition ...
JOINT CALIBRATION OF 3D LASER SCANNER AND DIGITAL CAMERA BASED ON DLT ALGORITHM
Direct Linear Transformation 3D laser scanner Digital camera Point-cloud Image
2018/5/14
Design a calibration target that can be scanned by 3D laser scanner while shot by digital camera, achieving point cloud and photos of a same target. A method to joint calibrate 3D laser scanner and di...
INDIVIDUAL ROCKS SEGMENTATION IN TERRESTRIAL LASER SCANNING POINT CLOUD USING ITERATIVE DBSCAN ALGORITHM
DBSCAN rocks segmentation terrestrial laser scanning fluvial transport
2018/6/5
The fluvial transport is an important aspect of hydrological and geomorphologic studies. The knowledge about the movement parameters of different-size fractions is essential in many applications, such...
Researchers from North Carolina State University and the University of Delaware have developed an algorithm that can quickly and accurately reconstruct hyperspectral images using less data. The images...
While 3-D printers have become relatively cheap and available, 3-D scanners have lagged well behind. Now an algorithm developed by Brown University researchers may help bring high-quality 3-D scanning...
NEW ALGORITHM FOR SUB-PIXEL BOUNDARY MAPPING
Mixed Pixel Endmember Spatial Pattern Sub-Pixel Boundary Mapping
2015/8/31
Remotely sensed images often contain a combination of both pure and mixed pixels. Analysis and classification of remotely sensed
imagery used to provide information on the spatial pattern of land co...
A high-dynamic-range liquid crystal display (HDR-LCD) which studies as a dual-panel display can much enhance the contrast ratio of image and reduce the power consumption upon the locally controlled dy...
A Novel Segment-Based Protection Algorithm for Multicast Sessions in Optical Networks with Mesh Topologies
Fiber optics optical communications Networks multicast
2015/5/25
This work examines protection of multicast sessions in optical networks utilizing a novel segment-based algorithm called Level Protection. Our proposed scheme exhibits improved performance compared to...
Cyclic Prefix Free 10-Gb/s OFDM for a DML-Based Long- Reach Optical Access Using Joint Time and Frequency Domain Equalization Algorithm
Fiber optics links subsystems Modulation
2015/5/25
Without using a cyclic prefix, a DML-based 10-Gb/s OFDM at 2.5-GHz bandwidth transmission over 65-km SMF is demonstrated to be possible while maintaining the efficient throughput and short-latency tim...
Low Computation Complexity Two-Stage Feedforward Carrier Recovery Algorithm for M-QAM
Low Computation Complexity Two-Stage FeedforwardCarrier Recovery Algorithm M-QAM
2015/5/20
We propose a modified two-stage feedforward carrier recovery algorithm for M-QAM formats that achieves a 3x reduction in computation complexity compared to a single-stage algorithm. When combining wit...
Statistical Investigations of Optical OFDM Adaptive Loading Algorithm over 1000 Worst-Case MMFs
Optical OFDM Adaptive Loading Algorithm MMFs Statistical Investigations
2015/5/18
Bit-and-power-loading(BPL) [power-loading (PL)] offers the best (worst) performance.For MMFs of <300m PL is effective for escalating an optical OFDM MMF link performance to its maximum potential; for ...
A Novel Monitor Placement Algorithm for Accurate Performance Monitoring in Optical Network
Optical Network Accurate Performance Monitoring Placement Algorithm
2015/5/15
We propose a novel monitor placement algorithm that reduces significantly the number of monitors required to accurately assess the QoT of all lightpaths established in an optical network, compared to ...
Suboptimal ODN Design Algorithm for Minimizing Cable Deployment Cost
Deployment Cost ODN Design Algorithm
2015/5/15
A novel design algorithm of PON ODN is proposed and demonstrated. Based on the forecasted demand, it can automatically generate a suboptimal network in terms of the total cable deployment construction...