Key terms and common mistakes

The words you will hear in Computer Vision work and the mistakes that most often cost interns approvals.

Key terms

TermMeaning
PixelSmallest unit of an image
OpenCVOpen-source computer vision library
Gaussian blurSmooths image to reduce noise
ClassificationAssigning a label to an image
Bounding boxRectangle around an object
Semantic segmentationClass label for every pixel
Face recognitionIdentifying a person from a face
FrameSingle image in a video

Common mistakes to avoid

  • Testing on the same images used for training.
  • Ignoring the dataset licence and consent for photos of people.
  • Reporting only accuracy without a confusion matrix or failure examples.
  • Forgetting that OpenCV loads images as BGR, not RGB.
  • Not checking speed (frames per second) on the real device.

Want to go deeper? The free Computer Vision learning path has short modules, games and a certificate for each module.

โ† Submitting tasks and earning your certificateApply for the Computer Vision internship โ†’