← Computer Vision learning path
Computer Vision · Module 5 of 10

Object detection

Find and locate multiple objects with bounding boxes.

📖 Key ideas

  1. Detection outputs class labels plus bounding boxes.
  2. Popular models: YOLO, SSD, Faster R-CNN, DETR.
  3. IoU (Intersection over Union) measures box overlap.
  4. Non-max suppression removes duplicate boxes.
  5. mAP is the standard detection metric.
💡 Real-life example: Object detection is a teacher circling every mistake on a page and labelling each one.
Bounding boxRectangle around an object
YOLOYou Only Look Once, fast detector
IoUBox overlap measure
mAPMean Average Precision