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TF_Lecture 5_remote sensing image interpretation
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TF_Lecture 5_remote sensing image interpretation

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Questions and Answers

The goal of change detection is to identify the cause of change in the landscape.

False

Visual inspection is suitable for detecting subtle changes in land cover.

False

Post-classification comparison is a method used in multi-temporal image analysis for change detection.

True

Change detection is only possible using high-resolution satellite images.

<p>False</p> Signup and view all the answers

The accuracy of change detection results can be assessed using metrics such as the Kappa Coefficient.

<p>True</p> Signup and view all the answers

A Kappa value of 0.70 indicates a very good agreement between the two observers.

<p>True</p> Signup and view all the answers

Change detection methods can only be used to detect long-term changes such as urban growth or desertification.

<p>False</p> Signup and view all the answers

When applying Temporal Image Differencing, the values of the change image are typically between 0 and 255

<p>False</p> Signup and view all the answers

Radiometric and atmospheric corrections are not necessary for accurate change detection analysis.

<p>False</p> Signup and view all the answers

A Kappa value of -0.5 implies that the two observers have a perfect agreement.

<p>False</p> Signup and view all the answers

Temporal Image Differencing using a single band can detect subtle changes in land cover

<p>True</p> Signup and view all the answers

Spatial registration of images with an accuracy of 1-2 pixels is sufficient for change detection analysis.

<p>False</p> Signup and view all the answers

Areas of no change in the Temporal Image Differencing method have a value of 0 in the change image

<p>False</p> Signup and view all the answers

The NDVI method of Temporal Image Differencing can be used to detect changes in vegetation health

<p>True</p> Signup and view all the answers

Temporal Image Differencing using NDVI can be used to classify land cover changes into more than two categories

<p>False</p> Signup and view all the answers

The Kappa Coefficient is a measure of the accuracy of change detection results, with values ranging from $0$ to $1$, where $1$ indicates perfect agreement and $0$ indicates no agreement.

<p>True</p> Signup and view all the answers

The Maximum Likelihood Classifier is a type of unsupervised classification method.

<p>False</p> Signup and view all the answers

Temporal image differencing is a method of change detection that involves comparing two or more images of the same area taken at different times.

<p>True</p> Signup and view all the answers

The confusion matrix is a metric used to assess the accuracy of change detection results, and it provides a summary of the number of true positives, false positives, true negatives, and false negatives.

<p>True</p> Signup and view all the answers

The k-Nearest Neighbour Classifier is a type of unsupervised classification method that assigns each pixel to the class of its k-nearest neighbours.

<p>False</p> Signup and view all the answers

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