
Emotion Detection from Facial Expressions
Project Title: Emotion Detection from Facial Expressions Using Deep Learning
Objective:
To develop a model that can automatically detect human emotions (e.g., happy, sad, angry) from facial expressions in images or video frames.
Dataset:
FER-2013: A popular dataset consisting of 35,887 grayscale 48x48 pixel face images categorized into 7 emotion classes:
Classes: Angry, Disgust, Fear, Happy, Sad, Surprise, Neutral
Key Steps:
Data Preprocessing:
Normalize pixel values.
Resize images (if using a custom image source).
Convert labels to categorical format.
Augment data to improve robustness (rotation, zoom, etc.).
Model Building:
Use Convolutional Neural Networks (CNNs) for feature extraction and classification.
Advanced approaches may include transfer learning with pre-trained models like VGG, ResNet.
Training & Validation:
Split dataset into training and validation sets.
Use techniques like dropout, batch normalization to prevent overfitting.
Evaluation:
Accuracy, confusion matrix, precision/recall per emotion class.
Model performance may vary across emotion types (e.g., Disgust is often harder to classify accurately).
Deployment:
Integrate into real-time applications using OpenCV for face detection and live video emotion classification.
Tools & Libraries:
Python, OpenCV, NumPy
TensorFlow/Keras or PyTorch
Matplotlib/Seaborn for visualization
Applications:
Human-computer interaction
Customer feedback analysis
Mental health monitoring
Security and surveillance