搜索结果: 1-15 共查到“测绘科学技术 Light”相关记录39条 . 查询时间(0.236 秒)
REPRESENTING WITH LIGHT. VIDEO PROJECTION MAPPING FOR CULTURAL HERITAGE
video projection mapping cultural heritage laser scanning photogrammetry geoinformatics technologies architecture
2018/6/4
In this paper, we describe a cross-disciplinary process that uses photogrammetric surveys as a precise basis for video projection mapping techniques. Beginning with a solid basis that uses geoinformat...
ANALYSIS OF LOW-LIGHT AND NIGHT-TIME STEREO-PAIR IMAGES FOR PHOTOGRAMMETRIC RECONSTRUCTION
3D Modelling Close Range Photogrammetry ISO time of exposure
2018/6/5
Rockfalls and rockslides represent a significant risk to human lives and infrastructures because of the high levels of energy involved in the phenomena. Generally, these events occur in accordance to ...
TOWARDS GUIDED UNDERWATER SURVEY USING LIGHT VISUAL ODOMETRY
Visual odometry underwater imaging computer vision
2017/4/10
A light distributed visual odometry method adapted to embedded hardware platform is proposed. The aim is to guide underwater surveys in real time. We rely on image stream captured using portable stere...
LOW-COST 3D LASER SCANNING IN AIR ORWATER USING SELF-CALIBRATING STRUCTURED LIGHT
Underwater laser scanning structured light self-calibration 3D reconstruction
2017/4/5
In-situ calibration of structured light scanners in underwater environments is time-consuming and complicated. This paper presents a self-calibrating line laser scanning system, which enables the crea...
LANDSCAPES IMPACTED BY LIGHT
human settlements urban sprawl nighttime lights rurbanization ex-urban
2016/12/1
The gradual spread of urbanization, the phenomenon known under the term urban sprawl, has become one of the paradigms that have characterized the urban development since the second half of the twentie...
LIGHT DIFFUSION IN THE TROPICAL DRY FOREST OF COSTA RICA
Leaf area index spectral vegetation indices MODIS
2016/11/30
Leaf Area Index (LAI) has been defined as the total leaf area (one-sided) in relation to the ground. LAI has an impact on tree growth and recruitment through the interception of light, which in turn a...
MANGROVE PLANTATION FOREST ASSESSMENT USING STRUCTURAL ATTRIBUTES DERIVED FROM LIGHT DETECTION AND RANGING (LiDAR) DATA
Mangroves Rhizophoraceae Plantation Point Cloud LiDAR
2016/11/30
Estimating the structural and functional attributes of forests is integral in performing management strategies and for understanding forest ecosystem functions. Field sampling methods through plot lev...
DENOISING ALGORITHM FOR THE PIXEL-RESPONSE NON-UNIFORMITY CORRECTION OF A SCIENTIFIC CMOS UNDER LOW LIGHT CONDITIONS
CMOS Denoising algorithm Pixel-response non-uniformity
2016/7/28
We present a denoising algorithm for the pixel-response non-uniformity correction of a scientific complementary metal–oxide–semiconductor (CMOS) image sensor, which captures images under extremely low...
DEM RECONSTRUCTION USING LIGHT FIELD AND BIDIRECTIONAL REFLECTANCE FUNCTION FROM MULTI-VIEW HIGH RESOLUTION SPATIAL IMAGES
DSM reconstruction BRDF Light field Image sequence
2016/7/27
This paper presents a method for dense DSM reconstruction from high resolution, mono sensor, passive imagery, spatial panchromatic image sequence. The interest of our approach is four-fold. Firstly, w...
STRUCTURED LIGHT BASED 3D SCANNING FOR SPECULAR SURFACE BY THE COMBINATION OF GRAY CODE AND PHASE SHIFTING
Structured Light 3D Scanning Specular Surface Maximum Min-SW Gray Code Phase Shifting
2016/7/27
Surface reconstruction using coded structured light is considered one of the most reliable techniques for high-quality 3D scanning. With a calibrated projector-camera stereo system, a light pattern is...
AIRBORNE LIGHT DETECTION AND RANGING (LIDAR) DERIVED DEFORMATION FROM THE MW 6.0 24 AUGUST, 2014 SOUTH NAPA EARTHQUAKE ESTIMATED BY TWO AND THREE DIMENSIONAL POINT CLOUD CHANGE DETECTION TECHNIQUES
LiDAR Change Detection ICP
2016/7/8
Remote sensing via LiDAR (Light Detection And Ranging) has proven extremely useful in both Earth science and hazard related studies. Surveys taken before and after an earthquake for example, can provi...
Unmanned Aerial Vehicles (UAV) have been recognized as a tool for geospatial data acquisition due to their flexibility and favourable cost benefit ratio. The practical use of laser scanning devices on...
LIGHT-WEIGHT MULTISPECTRAL UAV SENSORS AND THEIR CAPABILITIES FOR PREDICTING GRAIN YIELD AND DETECTING PLANT DISEASES
UAV multispectral multi-temporal agriculture plant vitality NDVI predicting yield
2016/7/5
In this paper we investigate the performance of new light-weight multispectral sensors for micro UAV and their application to selected tasks in agronomical research and agricultural practice. The inve...
A Project Overview for the Development of a Light and Flexible Rapid Mapping System for Emergency Response
Rapid Mapping Emergency Response Multi-Sensor System
2015/12/17
As disasters and accidents due to various natural or artificial causes being increased, the demands for rapid responses for such
emergency situations also have been ever-increasing. These emergency r...
Integration of Structured Light and Digital Camera Image Data for the 3D Reconstruction of an Ancient Globe
3D reconstruction Close range Photogrammetry Structured light
2015/12/16
An antique 300-year old wooden globe, preserved in the National Museum of Switzerland, had to be copied physically for delivery
to another party. For this purpose a 3D computer model had to be genera...