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Citations since 2017
3 Research Items
I got my M.Sc. in Geomatics from National Cheng Kung University (Tainan, Taiwan), and I am now doing research in Virtual World and Digital Game Group in Technische Universität Ilmenau (TU Ilmenau, German). I have strong background in Photogrammetric Computer Vision, and would like to contribute my knowledge into practical applications. Currently, I aim to generate depth map of indoor environment based on monocular images, which is applied on Diminished & Augmented Reality. In my master thesis, I developed Visual Odometry based on Disparity Chaning for dual cameras on vehicle. In addition, I possess extensive experience in Photogrammetric Applications, such as bundle adjustment, 3D Reconstrution and camera calibration.
This thesis aims to analyze the precision of Position and orientation of cameras on Mobile Mapping System (MMS) determined by disparity based VO (DBVO). Dual forwards taken cameras on MMS are applied to obtain a sequence of stereo pairs. The Interior Orientation Parameters (IOPs) and Relative Orientation Parameters (ROPs) are derived in advance. Th...
Mobile Mapping System (MMS) has been applied for many purposes. The purpose of sensors on MMS is either positioning or data acquisition. Positioning sensors, such as Global Navigation Satellite System (GNSS) and Inertial Navigation System (INS), provide the location information. However, GNSS fails in some environments, and the drift error of navig...
This thesis uses Disparity Based Visual Odometry (DBVO) to estimate the pose of dual forwards photographing cameras on MMS in outdoor environment. The input data of DBVO contain a sequence of forwards photographing stereo pairs, Interior Orientation (IO) of dual cameras and their Relative Orientation (RO). The IO and RO are assumed to be invariant...
Since the land surface has been changing naturally or manually, DEMs have to be updated continually to satisfy applications using the latest DEM at present. However, the cost of wide-area DEM production is too high. DEMs, which cover the same area but have different quality, grid sizes, generation time or production methods, are called as multi-sou...
Nowadays, big data is applied in many fields widely. In photogrammetry, the most remarkable influence of big data is that we can easily obtain a large number of images about interesting targets for free from diverse sources such as Internet. Thus, the cost of reconstructing 3D model is drastically reduced by using those images. These images are alm...