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DETECTION OF COLLAPSED BUILDINGS BY CLASSIFYING SEGMENTED AIRBORNE LASER SCANNER DATA
Supervised classification maximum entropy modelling rule based classification airborne laser scanner data segmentation object-based point cloud analysis
2012/9/3
Rapid mapping of damaged regions and individual buildings is essential for efficient crisis management. Airborne laser scanner (ALS) data is potentially able to deliver accurate information on the 3D ...
VEGETATION CHARACTERISTICS USING MULTI-RETURN TERRESTRIAL LASER SCANNER
terrestrial laser scanning vegetation mapping point cloud processing DEM/DTM
2012/9/3
Distinguishing vegetation characteristics in a terrestrial laser scanner dataset is an interesting issue for environmental assessment. Methods for filtering vegetation points to distinguish them from ...
VOXEL-BASED ESTIMATION OF PLANT AREA DENSITY FROM AIRBORNE LASER SCANNER DATA
Canopy structure Three-dimensional (3-D) Flight line Lidar Plant area index Crown volume
2012/9/3
Three-dimensional distribution of plant area density (PAD) was retrieved using airborne laser scanning (ALS) data. The calculation of PAD requires the number of laser-pulses intercepted by plant mater...
DETECTION OF ROAD CURB FROM MOBILE TERRESTRIAL LASER SCANNER POINT CLOUD
road furniture curb street floor sidewalk eigenvalue surface normal edge detection
2012/9/3
The detection of different road furniture such as curb, street floor and sidewalk from point clouds is important in many applications such as road maintenance and city planning. In this paper a pipeli...
APPROXIMATION OF VOLUME AND BRANCH SIZE DISTRIBUTION OF TREES FROM LASER SCANNER DATA
LIDAR point cloud trees classification size approximation carbon cycle
2012/9/3
This paper presents an approach for automatically approximating the above-ground volume and branch size distribution of trees from dense terrestrial laser scanner produced point clouds. The approach i...
LASER PULSE VARIATIONS AND THEIR INFLUENCE ON RADIOMETRIC CALIBRATION OF FULL-WAVEFORM LASER SCANNER DATA
Radiometric Calibration Full-Waveform Laser Scanning Error Assessment
2012/9/3
Full-waveform laser scanning extends the information content of "conventional" laser scanning by storing the temporal profile of both the emitted laser pulse and its echoes. This allows for calc...
手持式激光扫描器HAND HELD LASER SCANNER
激光扫描器 模式识别 条形码识读器
2008/9/9
所有的条码阅读器中，使用最广泛、最方便的是手持式激光扫描器，与光笔相比较，光笔虽然便宜，但在使用时必需与条码相接触，容易划伤条码标签，且使用者需要经过培训才能保证条码的正常阅读。CCD阅读器价格虽不贵，但只限于短距离，且被阅读的条码长度不能超过一定范围。槽式阅读器只能阅读卡片上的条码。手持式激光扫描器使用时不需与条码接触，只要扣动扳机，激光扫在条码上就能阅读。虽然价格较贵，但其性能是其它阅读器所无...
A QUALITY ASSESSMENT OF REPEATED AIRBORNE LASER SCANNER OBSERVATIONS
Comparison LIDAR DTM accuracy
2004/6/1
This paper describes the height and planimetric errors of repeated ALS (airborne laser scanning) strips with a deeper focus on
building extraction. Measurements with Toposys Falcon airborne laser sc...