An Extension Without an Exhibition

An extension of Reny’s theorem without quasiconcavity

In a recent but well known paper, Reny has proved the existence of Nash equilibria for compact and quasiconcave games, with possibly discontinuous payoff functions. In this paper, we prove that the quasiconcavity assumption in Reny’s theorem can be weakened: roughly, we introduce a measure allowing to localize the lack of quasiconcavity; this allows to refine the analysis of equilibrium existence.

Pictures at an Exhibition

This project is to recognize an input image through the database which are learned from a set of training images. The first thing we have done is to extract only the main image. This step requires an adaptive threshold to decide whether the selected region is a painting we want or not. The morphological operation follows the filtering process. The edges of the painting extracted in the source i...

Pictures at an Exhibition

We employ an image identification algorithm for interactive museum guide with pictures taken by camera phones. Our algorithm is based on the shift-invariant feature transform (SIFT) algorithm. However, efficiency is a critical issue in the real-time interactive system, so a simplified version of SIFT algorithm is implemented in this work. Our testing database includes 33 paintings at the Cantor...

Modern Authentication An Exhibition

Pictures at an Eigen - Exhibition

“A picture is worth a thousand words,” but finding the right thousand words to describe a picture has no simple adage. Camera phones and other mobile devices can easily capture a scene, but processing the image to inform its contents and describe the scene requires efficient object recognition and identification. In an effort to augment reality in a potential virtual museum guide, this document...