Classification vs Object detection vs Segmentation

Abheeshta P - Feb 23 - - Dev Community

Computer vision classification

Classification 🎯

  • Categorizes an image into predefined classes.
  • Provides a yes/no answer (belongs to a class or not).

Object Detection 🔍

  • Draws a bounding box around detected objects.
  • Uses sub-classification for each detected region.
  • Improved by YOLO for real-time, single-shot detection.

Segmentation ✂️

  • No bounding boxes, instead, it creates masks based on object shape.
  • Types of Segmentation:
    • Image Segmentation 🖼: Uses abstract contour-based masking.
    • Semantic Segmentation 🌍: Assigns class-wise masks to all objects.
    • Instance Segmentation 🔢: Identifies multiple instances of the same class separately.
    • Panoptic Segmentation 🏷: Combines semantic and instance segmentation, identifying both classes and individual instances.

TLDR : In Deep Learning and Image Processing

  • Classification 📌: Used in tasks like spam detection, medical diagnosis, and species identification.
  • Object Detection 🎯: Applied in self-driving cars, surveillance, and facial recognition.
  • Segmentation ✂️: Essential for medical imaging (tumor detection), autonomous vehicles, and augmented reality.

These methods help AI "see" and understand images more effectively! 🚀

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