Chung Yuan Christian University

About: Chung Yuan Christian University is a education organization based out in Taoyuan City, Taiwan. It is known for research contribution in the topics: Membrane & Fuzzy logic. The organization has 9819 authors who have published 11623 publications receiving 213139 citations. The organization is also known as: Tiong-gôan-tāi-ha̍k & CYCU.

A motion-tolerant dissolve detection algorithm

Abstract: Gradual shot change detection is one of the most important research issues in the field of video indexing/retrieval. Among the numerous types of gradual transitions, the dissolve-type gradual transition is considered the most common one, but it is also the most difficult one to detect. In most of the existing dissolve detection algorithms, the false/miss detection problem caused by motion is very serious. In this paper, we present a novel dissolve-type transition detection algorithm that can correctly distinguish dissolves from disturbance caused by motion. We carefully model a dissolve based on its nature and then use the model to filter out possible confusion caused by the effect of motion. Experimental results show that the proposed algorithm is indeed powerful.

A Generalized Fuzzy Clustering Regularization Model With Optimality Tests and Model Complexity Analysis

Abstract: In this paper, we propose a generalized fuzzy clustering regularization (GFCR) model and then study its theoretical properties. GFCR unifies several fuzzy clustering algorithms, such as fuzzy c-means (FCM), maximum entropy clustering (MEC), fuzzy clustering based on Fermi-Dirac entropy, and fuzzy bidirectional associative clustering network, etc. The proposed GFCR becomes an alternative model of the generalized FCM (GFCM) that was recently proposed by Yu and Yang. To advance theoretical study, we have the following three considerations. 1) We give an optimality test to monitor if GFCR converges to a local minimum. 2) We relate the GFCR optimality tests to Occam's razor principle, and then analyze the model complexity for fuzzy clustering algorithms. 3) We offer a general theoretical method to evaluate the performance of fuzzy clustering algorithms. Finally, some numerical experiments are used to demonstrate the validity of our theoretical results and complexity analysis.

Electronically tunable third-order quadrature oscillator using CDTAs

Abstract: A current/voltage-mode third-order quadrature oscillator based on current differencing transconductance amplifiers (CDTAs) is presented in this paper. Outputs of two current-mode and two voltage-mode sinusoids each with 90 phase difference are available in the quadrature oscillator circuit. The oscillation condition and oscillation frequency are independently controllable. The proposed circuit employs only grounded capacitors and is ideal for integration. Simulation results are included to confirm the theoretical analysis.

Temperature compensation electronics for ISFET readout applications

Abstract: This paper presents temperature compensation electronics for ion sensitive field effect transistor (ISFET) sensors It consists of a bridge-type floating-source ion sensing circuit and a VT extractor centigrade temperature sensor accompanied with a temperature coefficient (TCF) cancellation method Using LabVlEW packages has developed an extended measurement system including compensation algorithms programming Experimental results show that the temperature dependence of the Si/sub 3/N/sub 4/-gate ISFET sensor improved from 8mV//spl deg/C to near 0mV//spl deg/C with the proposed temperature compensation circuitry This system allows a wide range of high accurate pH-level measurements The method of temperature compensation may also be valid for other biosensors or bioFETs