This project presents the use of MODI, a modular object detection inspection system for precision optics applications. Designed by GeoPulse Solutions, MODI is a sensor device that integrates advanced imaging, precision movements, and custom software for device control and data analysis. The system supports high-resolution digital microscopy and multi-spectral imaging (MSI) spectroscopy. MODI can produce ‘superimages’ by stitching hundreds of single images together and adjusting edge features. The device is used to analyze objects before and after cleaning processes to evaluate contamination removal, surface changes, and treatment effectiveness. Additionally, the system can identify scratch-and-dig type defects and assess surface damage and micro-scale wear. This versatile platform demonstrates the potential of integrated spectral and microscopic imaging for non-destructive evaluation and materials analysis. Results will be presented that illustrate the range of objects that MODI can analyze and the types of information users obtain.
The four-color theorem is a beautiful fact in math, showing that any political map can be colored in such a way that no two countries that share a border have the same color with only four colors. However, it may surprise you to learn this property is not often used in creating maps of countries. This talk will give an introduction to empire coloring — the reasons why many political maps may exceed the four-color threshold — and prove theorems about the required number of colors for some interesting maps which have qualities that are not represented in the four-color theorem.
