Course related
Geological Aspects of Taiwan
National Taiwan University, November 2007
Why is Taiwan geologically so special? It's because of it being on the edge of two tectonic plates. So what is plate tectonics then, and what is the speciality of Taiwan? The report briefly explains the theory of plate tectonics, the location of Taiwan at a convergent boundary and how that created Taiwan's unique geology. It also explains how earthquake measurements can tell researchers more about geological faults.
Global Climate Change affecting Taiwan
National Taiwan University, November 2007
How is the past climate measured, which measurements are taken in and around Taiwan and how does this link to the current and future climate? The report will go back in time and looks at the global climate, it will report about measurements taken around Taiwan to support historical climate changes and will shortly discuss current climate models and future predictions regarding global warming.
National Parks and Nature Reserves in Taiwan
National Taiwan University, January 2008
National Parks are commonly known, but what about Nature Reserves? Which National Parks and Nature Reserves are there in Taiwan? This report explains what National Parks and Nature Reserves actually are, and which and where they are in Taiwan. With many photographs the report will give an overview of Parks, Reserves, their goals and the nature they're protecting.
Humanistic Geography (chapter summary)
National Taiwan University, December 2008
Humanistic geography evolved out of behavioral geography. People were treated as statistics instead of looking at their reasons for deciding what to do. This is a summary of a book chapter which aided me in understanding the subject and creating a presentation.
Strabo (64 BC-24 AD)
National Taiwan University, January 2009
Strabo is arguably the second geographer since the beginning of geography, but much about him or his work is not known to many. This document compiled from previous research and his books mentions his life, his 17-volume Geographica and how he has influenced current views on geography.
Project related
Low Power Electronics System for an Assisted Human Powered Vehicle
Massachusetts Institute of Technology, July 2006
Building an assisted human powered vehicle requires electronics to control the electric motor and provide information to the driver. This document contains a complete detailed description of the systems and even schematics for building such a system.
History and Future of Car Design, an Inspirational Approach
National Taiwan University, December 2007
Where do you get your inspiration from, might you decide to build a car? Of course, by looking at cars which already exist. But unfortunately, this takes a very long time of searching. Necessary, of course, and when you already know the direction which you're going to design, it's a bit easier. But everybody needs a little push and that's why this presentation is created. The presentation is 4 Mb in size and does contain some copyrighted images only for this presentation (read the ppt notes). Feel free to edit and present the presentation yourself, that's why it's created.
Thesis related
Super Resolution Mapping using Markov Random Fields
University of Twente, Enschede, The Netherlands, May 2007
Bachelor thesis in Electrical Engineering.
Super resolution mapping is a method in the remote sensing area where mixed pixels are divided into subpixels and for which every subpixel will be classified. Several methods are available for generating a super resolution image as well as several methods are available for optimizing the image. This research focuses on the Markov random field method and uses simulated annealing for optimizing the created image. The prior energy, dependent on the neighboring pixels, and the likelihood energy, dependent on the class distribution over the bands, both determine the final result. The distribution between the two energy functions, the smoothing parameter, has to be found to give a close to optimal result.
Within this research an optimal smoothing parameter is found when covariance scaling is adopted within the likelihood energy function. Furthermore it is checked if the amount of classes within one image has influence on the optimal smoothing parameter. Finally several different synthetic images containing a better model of what can be found in remote sensing were produced and tested.
Correlated Color Temperature in Color Appearance Models
National Taiwan University, Taipei, Taiwan, January 2010
Master thesis research in Communication Engineering.
Correlated color temperature is the temperature of a Planckian radiator which perceived color closely resembles that of a test stimulus. The International Commission on Illumination (CIE) has defined this measurement as being valid under specified viewing conditions and with the test stimulus being of the same brightness as the point of the Planckian radiator. The current method for calculation of the correlated color temperature dates back to 1968 and is based on an obsolete color space which is nowadays not used for any other calculations. The color space is valid for any viewing condition and the brightness is unknown.
Color appearance models use viewing conditions and input stimuli to model perceived appearance. Correlates which include brightness and hue are mathematically defined. These parameters are exactly the requirement of the CIE definition for correlated color temperature but are currently not used in the calculation. In this research the definition of color temperature from the Planckian blackbody equation is used to find their locations in color appearance models. Given the blackbody locus as test stimulus di erent input situations are tested and the models’ outputs are compared. Finally a method for calculating the correlated color temperature in any color appearance model is given which conforms much closer to the CIE definition.