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GATE 2023 AR — Planning – Question 63

Data Analysis, Remote Sensing and Geo-informatics · Principles of digital image processing · 2 marks · Multiple select

Which methods can classify land use from satellite imagery?

  1. Maximum likelihood
  2. Northwest corner method
  3. K-means
  4. Artificial neural network

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Show answer and explanation

Correct answer: (A) Maximum likelihood; (C) K-means; (D) Artificial neural network

Explanation

Maximum likelihood is a supervised statistical classifier; K-means groups pixels into clusters; neural networks can learn class boundaries. Thus A, C, D. The northwest-corner rule constructs a basic feasible solution to a transportation optimisation problem, not an image classification.