Hebun Hivda Ürey

ENGINEERING PROBLEM

Camera-based systems often hide their sensing. This project asks how detection can become visible without turning the viewer into an identified subject.

APPROACH

Capture a live camera frame, preprocess it in grayscale, detect a face with a Haar cascade, calculate the face center, and map the coordinate to a left, center, or right gaze state rendered as animated eyes. When no valid face is found, the system falls back to an idle state.

WHAT I LEARNED

Real-time interaction is not only about detection accuracy. Readability, latency, privacy boundaries, and fallback states decide whether a sensing system feels understandable.

ENGINEERING PROBLEM

Fixed panels cannot react to changing light direction. The prototype tests how sensor feedback can drive two-axis orientation control.

APPROACH

Read four LDR values (left top, right top, left bottom, right bottom), average them into top, bottom, left, and right signals, compare the horizontal and vertical differences, and update two servo angles through Arduino control logic.

WHAT I LEARNED

Small sensor differences need clear thresholds, stable control logic, and respect for actuator limits. The hardware behavior matters as much as the code.

ENGINEERING PROBLEM

Models can look artificially strong when diagnostic variables leak into the predictor set. This project focuses on cleaner evaluation rather than inflated accuracy.

APPROACH

Remove diagnosis-adjacent variables such as fasting glucose and HbA1c, engineer self-measured features, compare multiple classifiers, and evaluate with macro metrics because the three classes are imbalanced.

WHAT I LEARNED

Model performance is not only the highest accuracy. Experimental design, leakage prevention, class imbalance, and honest interpretation matter more.

ENGINEERING PROBLEM

Content platforms need structure, navigation, identity, and repeatable interaction loops, not just pages.

APPROACH

Design a capsule-like interface system with content sections, profile-like elements, lightweight game mechanics, and a clear platform identity around a gaming channel ecosystem.

WHAT I LEARNED

Technical products need more than implementation. The way content, interaction, and user return paths are structured determines whether a project feels alive.