Intellema
Back to Case Studies

Case Study

Facial Emotion Recognition

Facial Emotion Recognition

Category:

Computer Vision & Human-Computer Interaction

Impact:

10 Weeks | Fast Multi-Class Detection

Background

Understanding human emotions through facial expressions is vital for applications in research, user experience testing, education, and human-computer interaction. Manual observation is subjective and inefficient, while existing tools often lack flexibility and real-time usability. To address this gap, I created a web-based facial emotion recognition system capable of analyzing facial expressions across multiple categories such as happy, sad, angry, and others. The application provides a lightweight, accessible solution with a user-friendly interface for uploading images and obtaining fast predictions.

Project Goals

  • Develop an accurate CNN-based model for multi-class facial emotion detection
  • Enable fast predictions with a web-based interface for image uploads
  • Improve accessibility for UX research, classroom demonstrations, and real-time applications
  • Provide a scalable foundation for integration into kiosks, apps, or IoT systems

Our Approach

Image Preprocessing

Implemented preprocessing techniques for facial images, including resizing and normalization, to ensure consistent inputs.

Model Development

Trained a Convolutional Neural Network (CNN) using Keras on seven labeled emotion classes.

Low-Latency API

Built a lightweight Flask API delivering JSON outputs for real-time predictions with minimal latency.

Frontend Interface

Developed a browser-based UI (HTML/JavaScript) allowing users to upload images and visualize predicted emotions.

Key Results

  • Delivered fast and accurate predictions for multiple emotion categories
  • Enhanced accessibility by enabling adaptive interfaces based on user emotions
  • Provided a scalable and lightweight solution for integration into apps, kiosks, and IoT devices
  • Usable for research, UX testing, and classroom demonstrations with minimal setup

Technologies Used

Python
Python
Keras (TensorFlow backend)
Flask
HTML / JavaScript
OpenCV
OpenCV

Connect with Intellema

Contact Us
Intellema – Intelligence Beyond Hype