Practice Accuracy assessment - 5.17.4 | 5. Texture | Surveying and Geomatics
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5.17.4 - Accuracy assessment

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is accuracy assessment?

💡 Hint: Think about why validating data is important.

Question 2

Easy

Name one type of error that can occur during remote sensing classification.

💡 Hint: Consider the factors that could distort results.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does accuracy assessment measure?

  • A) The cost of image classification
  • B) The agreement between classified images and actual data
  • C) The time taken for analysis

💡 Hint: Consider what it means to validate data.

Question 2

True or False: Producer's accuracy reflects the probability that a pixel classified on the map actually represents that category on the ground.

  • True
  • False

💡 Hint: Think about the meaning of 'producer' in this context.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Using a dataset of classified satellite images, design a systematic approach to select ground truth samples. Discuss which sampling technique would be most effective and justify your choice.

💡 Hint: Consider how the distribution can affect the overall assessment.

Question 2

Given a confusion matrix, calculate the producer's and user's accuracy for each class, and analyze any discrepancies. What does this tell you about the classifications?

💡 Hint: Look closely at both types of accuracy to understand the strengths and weaknesses in your classifications.

Challenge and get performance evaluation