Ge Wang's Teaching Experience in the Graduate School of Academia Sinica (the first Graduate School and arguably the best in China), Beijing, China, 1984-1988

Graduate Course Title: Digital Picture Processing; Lecturer: Ge Wang

Content: This course covers basic concepts, representative algorithms, and typical applications. Fourteen chapters: Introduction, Mathematical preliminaries, Visual perception, Digitation, Compression, Enhancement, Restoration, Reconstruction, Matching, Segmentation, Representation, Description; Digital picture processing systems; Major trends and literature searching

Prerequisite: Advanced linear algebra, stochastic processes, linear system theory, digital signal processing

Textbook: A. Rosenfeld and A. C. Kak, Digital picture processing. Academic Press, New York, 1982

Graduate Course Title: Computer Vision; Lecturer: Ge Wang

Content: While image processing techniques map images to images, computer vision methods map images to descriptions. This course provides a basis for research and development in the computer vision area. Introduction: Viewing computer vision in the perspectives of computer science, bionics, and philosophy; Pre-processing: Recovering 3D shape from image stereo pair, shading, and texture; motion analysis; Segmentation: Boundary detection and region growing; Geometrical structures: 2D and 3D; Relational structures: Knowledge representation and use; Expert vision systems

Prerequisite: Digital picture processing, artificial intelligence

Textbook: D. H. Ballard and C. M. Brown, Computer Vision. Prentice-Hall, Englewood Cliffs, New Jersey, 1982

Wang G, Wei YR: A preliminary exploration on the graduate course objective examination. Journal of Graduate School of Academia Sinica 5(1):93-95, May 1988

Abstract: A method for the objective examination design is developed for teaching of the graduate course "Digital Picture Processing". In this method, questions are made to cover the course material in a balanced manner, and the number of the questions are determined according to an entropy-based criterion - the uncertainty reducibility. It is concluded that the objective examination method is accurate, reliable, cost-effective, and widely applicable for teaching at the graduate level.

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Wang G, Ding Y: English multiple-choice test modeling and analysis. Journal of Mathematics in Practice and Theory (Mathematics Association of China) 2:17-21, 1989

Abstract: English multiple-choice examinations become increasingly popular in China. However, there exists a substantial concern that such examinations are subject to randomness and lack of reliability. In this paper, three probabilistic models are constructed to characterize English multiple-choice questions in the Test of English as a Foreign Language (TOEFL) administrated by Educational Testing Service (ETS), USA. The relationship between the examination score and the student's proficiency is quantified and analyzed. According to the theoretical model, it is computed that the standard deviation of the TOEFL score must be 13.96, very consistent to the real value, which is 14 as reported by ETS. Our results help understand the rationale/validity of the TOEFL and provide guidelines for design of similar tests.

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Selection of Lectures, Seminar Handouts, Transparencies, and Slides

Wang G: Lecture on Computers (for residents). Department of Radiology, University of Iowa, 1/30/98

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Wang G: Image Restoration Based on I-Divergence Minimization. Graduate Seminar 55:191, Department of Electrical and Computer Engineering, University of Iowa, 2/26/98

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Wang G: Lecture Series on CT Physics (for residents). Department of Radiology, University of Iowa, 3/16-18/98

Part 1 [Click for Handout] [Click for Slides]
Part 2 [Click for Handout] [Click for Slides]
Part 3 [Click for Handout] [Click for Slides]

Acknowledgment: Drs. M. W. Vannier, S. C. Kao, J. R. Quets, E. A. Hoffman made suggestions.

Wang G and Quets JR: Computed tomography (for technologists). Department of Radiology, University of Iowa, 7/21/98-9/29/98 (1-2 pm; Tue., Thur.)

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Wang G: CT and Mathematics. Numerical Analysis Seminar, Department of Mathematics, University of Iowa, 3/23/99

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Wang G: Effect of pitch in multi-slice spiral/helical CT. SPIE Conference on X-ray Tomography, Denver, CO, 7/22/99 (Keynote Address)

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Yoo SK, Wang G, Rubinstein JT, Skinner MW, Vannier MW: Three-dimensional modeling and visualization of the cochlea on the Internet. To appear in IEEE trans. on Information Technology in Biomedicine (Special Issue on Multimedia Information Technology in Biomedicine)

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Q: Are X-rays safe?

A: Click for the answer from Dr. Cameron!