During a two-month period, Kyu-Bum Um enhanced the postechDNN/postechDNN repository by refining the GUI camera control for the PDDNN demo and improving data preprocessing in the DDNN_Demo. He refactored camera settings logic in C++ to streamline input file creation and convex hull point selection, which improved the reliability and repeatability of computer vision demonstrations. In the following month, he addressed data preprocessing bugs by updating algorithms and data structures to ensure accurate distance calculations and sorting. These targeted changes increased demo stability, reduced setup errors, and improved maintainability, reflecting a focused approach to robust, user-oriented engineering solutions.