Shiahn-wern Shyue

• Doctor of Philosophy
• Chair at National Sun Yat-sen University

To develop ocean current power generation, this study explored the planning and execution of the installation and deployment of a 20kW Floating Kuroshio Turbine (FKT) system and anchoring system for field testing in the southwest coast of Liuqiu Island. During the experiment, the 20kW FKT and anchoring system were loaded onto a vessel from the Kaoh...

Fishing nations worldwide have introduced various measures to manage their fisheries. However, many have failed including Taiwan. Taiwan operated one of the world's largest and most productive distant water tuna longline fleets but overcapacity and an incommensurate fisheries management scheme (FMS) resulted in illegal, unreported, and unregulated...

In recent years, Airborne Bathymetric Light Detection and Ranging (LiDAR) has been applied intensively to map coastal depth as well as for seabed classification. In this study, we proposed a hybrid K-means and Support Vector Machine (KSVM) algorithm based on depth-derived gray-level co-occurrence matrices (GLCM) from bathymetric LiDAR. First, the c...

Super-resolution reconstruction technology from multiple images provides a tool for overcome the limitation imposed by the image acquisition devicesand environmental restrictions. The fundamental concept of Super-resolution reconstruction is based on data fusion with priori information of the image content and noise, to improve the resolution and i...

National vertical data are mostly referenced to a tidal level of one or more tidal stations. The Keelung tidal station has been serving as the reference tidal station of the Taiwan National Height Datum for more than one century; all orthometric height in Taiwan is zeroed to the mean sea level (MSL) of an astronomical period of this station. A monu...

There is growing interest in three-dimensional (3D) modeling of urban areas in various fields, and in response many efficient light detection and ranging (LIDAR) systems have been developed and integrated with new types of digital aerial cameras. Intensive research has also been undertaken on the classification of natural and human-made structures...

The article outlines the data acquisition, processing and validation of the Taiwan's Ministry of the Interior-supported project. The project utilized an airborne bathymetric lidar to map the Dongsha Atoll and a portion of the Penghu Islands off the western coast of Taiwan in the Taiwan Strait. The HawkEye II system arrived in Taiwan in August 2010....

Data mining is commonly used in a wide range of different fields. It is an important tool for analyzing information in research areas where there is a huge collection of data. The aim of this study is to determine the various patterns that characterize multi-dimensional marine environments. In particular, we wish to determine the association patter...

Current geographic information systems (GIS) lack intelligent analytical methods. Therefore, this article offers the results of creative research: (1) Suggestions on a research structure for association rule mining based on GIS. (2) A search for the distribution of disadvantaged population groups in society using the Taiwan census 2000 data.(3) A m...

Data mining has been widely applied to different areas. For a country with a huge population and household census data, data mining is an ideal approach for analyzing this information. In Taiwan single-parent families, aborigines and the elderly have long been considered disadvantaged social classes, and their widening problems will have a tremendo...

While the spatial resolution of remotely sensed data has improved, multispectral imagery is still not sufficient for urban classification. Problems include the difficulty in discriminating between trees and grass, the misclassification of buildings due to diverse roof compositions and shadow effects, and the misclassification of cars on roads. Rece...

Airborne light detection and ranging (LiDAR) is a new remote-sensing technique that scans the ground surface to obtain high-resolution three-dimensional data. This paper presents a novel, adaptive LiDAR data-filtering algorithm that effectively filters out ground objects and generates a digital elevation model (DEM). Filtering and performance evalu...

Generally, automatic building corner or linear feature extraction from urban area aerial imagery is based on traditional computer vision corner or edge detection techniques. However, challenges and difficulties remained due to the complex characteristic of objects in urban images. Visually, the linear features in airborne LiDAR are much more distin...

In this study, a two-dimensional floating pier consists of single rectangular impermeable pontoon with side supporting pile-columns is studied. The purpose of this study is to present a theoretical solution for the linearized problem of incident waves exerting on a floating pier with pile-restrained. All boundary conditions are linearized in the pr...

Oil spill accident is very harmful to the coastal and marine ecology and mankind. The simulation and prediction of the transport and fade of spilled oil is one of the important issues to the oil spill contingency plans. Cellular Automata (CA) is one of the dynamic modeling tools easy to use. It usually divides the space into regular grid cells in 2...

Many events repeat themselves as the time goes by. Our environment has temporal and spatial properties and also can be very complicated. The aim is discovering association patterns behind the multidimensional environment. The data mining technology is a comprehensive suite of libraries that implement many machine learning algorithms. The process of...

In this work, we propose best fitting a small patch of sounding data collected by multibeam sonar to represent the seafloor right beneath the survey path. A pair of such patches obtained from two adjacent reciprocal or perpendicular survey paths are selected for comparison. The inconsistency between the two patches, or a false feature, gives us an...

Although sidescan may be used for approximate delimitation of the boundaries of artificial reefs, multi-beam echosounding technology provides a superior alternative for obtaining quantitative information on sea-bottom morphology and terrain changes around individual reef units. The accuracy of depth measurements of the system used during our trials...

Acoustic wave fields in an ocean waveguide with a sediment layer having continuously varying density and sound speed overlying an elastic subbottom are considered in this analysis. The objective of this study is to investigate the effects of seabed acoustic properties, including the density and sound speed of the sediment layer and subbottom, on th...

The quality of underwater video photography is limited by the visibility of the water column. Generally speaking, it is difficult to tell the dimension of the target directly from the underwater images. To overcome this problem, one may project a laser stripe onto the target and measure the displacement of the laser scan lines relative to a straigh...

Coherent reflection of an acoustic plane wave from rough interfaces in a horizontally-stratified medium, within which the sound-speed distribution subject to a small and random perturbation, is considered in this paper. The general formulation based upon the theory for rough-interface scattering in a stratified medium, in conjunction with that for...

As international trade is getting prosperous, commercial ports need to accommodate hundreds of vessels everyday. When a vessel berths the wharf carelessly, it is possible to cause some damage to the pier beneath the waterline without leaving any evidence. Generally, scuba divers are sent down with camera to take photos or video tapes of the underwa...

In order to investigate the distribution of artificial reefs (AR) in a coastal area for nautical charting and the stability study of the cast AR, a multibeam echo sounder (MBES) was used. Side scan information can only be favorably used for the qualitative understanding of the distribution of AR. Deployment of a side scan towfish in a coastal area...

Marine problems have the characteristics of the fuzzy boundary, dynamics, and a full three dimensions. It is not completely suitable for the land based geographic information systems (GIS) to apply fully in the marine environment. The purpose of this paper is to discuss the functional demands of two and three dimensional Marine GIS (MGIS) under var...

The Marine Water Quality Standard issued by Taiwan EPA has disadvantages of rough classification, indistinct boundary value and numerous parameters. A Coastal Water Quality Index (CWQI) is established in this study to solve the above mentioned disadvantages and to understand coastal water quality better for the general public. Six coastal water qua...