Can you trust what you see? The magic of visual perception

  • 2017-04-27
  • Research

Vision is our most developed sense and one upon which we rely to make many decisions, conscious or otherwise.


Vision is our most developed sense and one upon which we rely to make many decisions, conscious or otherwise. Many of our everyday interactions, such as driving a car, greeting familiar faces on the street, or deciding which dish to order at a restaurant, are guided by our visual sense.

For the most part, this works well. But sometimes we are reminded of our visual system’s limitations and surprising behavior through optical illusions that exploit misjudgments in size, distance, depth, color and brightness, among many others.

This lecture presents and explains a diverse collection of visual perception phenomena that challenge our common knowledge of how well we detect, recognize, compare, measure, interpret, and make decisions upon the information that arrives at our brain through our eyes. It also explains the relationships between the latest developments in human vision research and emerging technologies, such as: self-driving cars, face recognition and other forms of biometrics, and virtual reality.

After seeing a large number of examples of optical illusions and other visual phenomena, this talk will make you wonder: can you really trust what you see?


Oge Marques, PhD is Professor of Computer Science and Engineering at the College of Engineering and Computer Science and, by courtesy, Professor of Information Technology and Operations Management at the College of Business, at Florida Atlantic University (FAU) (Boca Raton, Florida, USA). He is Tau Beta Pi Eminent Engineer, ACM Distinguished Speaker, and the author of more than 100 publications in the area of intelligent processing of visual information – which combines the fields of image processing, computer vision, image retrieval, machine learning, serious games, and human visual perception –, including the textbook “Practical Image and Video Processing Using MATLAB” (Wiley-IEEE Press). Professor Marques is Senior Member of both the IEEE (Institute of Electrical and Electronics Engineers) and the ACM (Association for Computing Machinery) and member of the honor societies of Sigma Xi, Phi Kappa Phi and Upsilon Pi Epsilon. He has more than 30 years of teaching and research experience in different countries (USA, Austria, Brazil, India, Spain, France, and the Netherlands).


The lecture series on research talks by the visiting professors of the PhD School can also be credited as an elective course for students of master programs of computer science.


  • Oge Marques, Florida Atlantic University (FAU), Florida, USA

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