Chi‐Kuei Wang
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View article: Greenhouse Mapping and Crop Type Classification for Small-Scale Farms Using Airborne Laser Scanning
Greenhouse Mapping and Crop Type Classification for Small-Scale Farms Using Airborne Laser Scanning Open
The increasing frequency of extreme climatic events has resulted in significant crop losses, prompting many farmers to adopt greenhouses as a climate adaptation strategy. Greenhouses, constructed with transparent materials to allow sunligh…
View article: AI-assisted multi-modal information for the screening of depression: a systematic review and meta-analysis
AI-assisted multi-modal information for the screening of depression: a systematic review and meta-analysis Open
Depression is a prevalent and costly mental disorder across all ages. Artificial intelligence (AI)-assisted physiological and behavioral information-such as electroencephalography (EEG), eye movement, video or audio monitoring, and gait an…
View article: The development and application of Taiwan HD Maps for smart mobile mapping technology
The development and application of Taiwan HD Maps for smart mobile mapping technology Open
The rapid advancement of Intelligent Transport Systems (ITS) has significantly propelled the development of autonomous vehicle technologies in recent years. HD Maps are crucial for autonomous driving technology due to their high accuracy, …
View article: On-Chip Quantum Sensing of Kondo Spins in a High-Mobility Quasi-One-Dimensional Nanoconstriction
On-Chip Quantum Sensing of Kondo Spins in a High-Mobility Quasi-One-Dimensional Nanoconstriction Open
The precise nature of Kondo spins has remained enigmatic when extended to multiple spin impurities or, more intriguingly, when the localized spin itself may already be the consequence of many-body interactions in a presumably delocalized o…
View article: One-Pot Bottom-Up Synthesis of SiO2 Quantum Dots and Reduced Graphene Oxide (rGO) Nanocomposite as Anode Materials in Lithium-Ion Batteries
One-Pot Bottom-Up Synthesis of SiO2 Quantum Dots and Reduced Graphene Oxide (rGO) Nanocomposite as Anode Materials in Lithium-Ion Batteries Open
Here, crystalline SiO2 quantum dots (QDs) of 3–5 nm size were grown within the layers of reduced graphene oxide (rGO) by a solution mode chemical growth process at a relatively low temperature (100 °C). The composite was applied as a negat…
View article: Airborne LiDAR Point Cloud Classification Using Ensemble Learning for DEM Generation
Airborne LiDAR Point Cloud Classification Using Ensemble Learning for DEM Generation Open
Airborne laser scanning (ALS) point clouds have emerged as a predominant data source for the generation of digital elevation models (DEM) in recent years. Traditionally, the generation of DEM using ALS point clouds involves the steps of po…
View article: Mapping land-use and land-cover changes through the integration of satellite and airborne remote sensing data
Mapping land-use and land-cover changes through the integration of satellite and airborne remote sensing data Open
An integrated, remotely sensed approach to assess land-use and land-cover change (LULCC) dynamics plays an important role in environmental monitoring, management, and policy development. In this study, we utilized the advantage of land-cov…
View article: ESTABLISHMENT OF HD MAPS VERIFICATION AND VALIDATION PROCEDURE WITH OPENDRIVE AND AUTOWARE (LANELET2) FORMATS
ESTABLISHMENT OF HD MAPS VERIFICATION AND VALIDATION PROCEDURE WITH OPENDRIVE AND AUTOWARE (LANELET2) FORMATS Open
Mobile mapping technologies, for example multi-sensor integration and multi-platform mapping technology, have developed and improved over recent decades, various applications such as conventional mapping scenarios, rapid disaster response,…
View article: Mapping Land-Use and Land-Cover Changes Through the Integration of Satellite and Airborne Remote Sensing Data
Mapping Land-Use and Land-Cover Changes Through the Integration of Satellite and Airborne Remote Sensing Data Open
The development of an integrated, remotely sensed approach to assess land-use and land-cover change (LULCC) dynamics is of paramount importance, as it has the potential to alter the natural environment. In this study, we utilized the advan…
View article: Verification and validation procedure for high-definition maps in Taiwan
Verification and validation procedure for high-definition maps in Taiwan Open
Producing high-definition maps (HD maps) is critical for achieving the goal of safe autonomous vehicles. These maps must have sufficient quality to ensure safety in self-driving applications. In this paper, a procedure for the verifying th…
View article: Estimation of Total Suspended Matter Concentration of Ha Long Bay, Vietnam, from Formosat-5 Image
Estimation of Total Suspended Matter Concentration of Ha Long Bay, Vietnam, from Formosat-5 Image Open
This study proposes the use of spatial high-resolution Formosat-5 (FS5) images for estimating total suspended matter (TSM) concentrations in a coastal region. Although many atmospheric correction methods are available, none of them are pro…
View article: Bending the Curve of HD Maps Production for Autonomous Vehicle Applications in Taiwan
Bending the Curve of HD Maps Production for Autonomous Vehicle Applications in Taiwan Open
Mapping technologies have improved over time, and autonomous driving techniques have advanced substantially over recent decades. High-definition (HD) maps are key for autonomous driving because of their accurate and rich interpretations of…
View article: BUILDING SEGMENTATION IN AGRICULTURAL LAND USING HIGH RESOLUTION SATELLITE IMAGERY BASED ON DEEP LEARNING APPROACH
BUILDING SEGMENTATION IN AGRICULTURAL LAND USING HIGH RESOLUTION SATELLITE IMAGERY BASED ON DEEP LEARNING APPROACH Open
Understanding building area in agricultural land is important since arable land area in Taiwan is limited. One of the practical ways is manual digitization on high resolution satellite imagery, which can avoid field investigation and achie…
View article: Accuracy Comparison on Culvert-Modified Digital Elevation Models of DSMA and BA Methods Using ALS Point Clouds
Accuracy Comparison on Culvert-Modified Digital Elevation Models of DSMA and BA Methods Using ALS Point Clouds Open
High-resolution digital elevation models (HR-DEMs) originating from airborne laser scanning (ALS) point clouds must be transformed into Culvert-modified DEMs for hydrological and geomorphological analysis. To produce a culvert-modified DEM…
View article: Mapping Drainage Structures Using Airborne Laser Scanning by Incorporating Road Centerline Information
Mapping Drainage Structures Using Airborne Laser Scanning by Incorporating Road Centerline Information Open
Wide-area drainage structure (DS) mapping is of great concern, as many DSs are reaching the end of their design life and information on their location is usually absent. Recently, airborne laser scanning (ALS) has been proven useful for DS…
View article: The Spatial-Temporal Distribution of GOCI-Derived Suspended Sediment in Taiwan Coastal Water Induced by Typhoon Soudelor
The Spatial-Temporal Distribution of GOCI-Derived Suspended Sediment in Taiwan Coastal Water Induced by Typhoon Soudelor Open
This paper discusses the use of a Geostationary Ocean Color Imager (GOCI) to monitor the spatial–temporal distribution of suspended sediment (SS) along the coastal waters of northern Taiwan which was affected by Typhoon Soudelor from 8 to …
View article: Quantifying the scales of spatial variation in gravel beds using terrestrial and airborne laser scanning data
Quantifying the scales of spatial variation in gravel beds using terrestrial and airborne laser scanning data Open
Previous studies measured gravel bed surfaces by terrestrial laser scanning (TLS) and close-range photogrammetry suggested the presence of at least two different scales of spatial variation in gravel bed surfaces. This study investigated t…
View article: Estimating Stand Density in a Tropical Broadleaf Forest Using Airborne LiDAR Data
Estimating Stand Density in a Tropical Broadleaf Forest Using Airborne LiDAR Data Open
Forest-related statistics, including forest biomass, carbon sink, and the prevention of forest fires, can be obtained by estimating stand density. In this study, a dataset with the laser pulse density of 225.5 pulses/m2 was obtained using …
View article: SIMULATING VARIOUS TERRESTRIAL AND UAV LIDAR SCANNINGCONFIGURATIONS FOR UNDERSTORY FOREST STRUCTURE MODELLING
SIMULATING VARIOUS TERRESTRIAL AND UAV LIDAR SCANNINGCONFIGURATIONS FOR UNDERSTORY FOREST STRUCTURE MODELLING Open
Information about the 3D structure of understory vegetation is of high relevance in forestry research and management (e.g., for complete biomass estimations). However, it has been hardly investigated systematically with state-of-the-art me…
View article: HELIOS full-waveform laser scanning simulation framework. Source code, precompiled version, example files for study of understory tree height scanning and respective output.
HELIOS full-waveform laser scanning simulation framework. Source code, precompiled version, example files for study of understory tree height scanning and respective output. Open
This data collection enables any user to reproduce the study Hämmerle et al. (2017). It provides the source code to compile the applied simulation framework. Furthermore, a precompiled version of the software including the necessary files …
View article: EVALUATION OF FOREST CANOPY AND UNDERSTORY GAP FRACTION DERIVED FROM TERRESTRIAL LASER SCANNING
EVALUATION OF FOREST CANOPY AND UNDERSTORY GAP FRACTION DERIVED FROM TERRESTRIAL LASER SCANNING Open
The quantification of forest carbon sequestration is helpful to understand the carbon storage on the Earth. The estimation of forest carbon sequestration can be achieved by the use of leaf area index (LAI), which is derived from forest gap…