According to the classification error matrix below, what are the producer's accuracy and user's accuracy for the forest class? \(\begin{array}{|l|l|l|l|l|} \hline & \text { Urban } & \text { Forest } & \text { Cropland } & \begin{array}{l} \text { Row } \\ \text { Total } \end{array} \\ \hline \text { Urban } & 7 & 2 & 1 & 10 \\ \hline \text { Forest } & 2 & 25 & 8 & 35 \\ \hline \text { Cropland } & 3 & 1 & 51 & 55 \\ \hline \begin{array}{l} \text { Column } \\ \text { Total } \end{array} & 12 & 28 & 60 & 100 \\ \hline \end{array}\)

A) 89%, 71% (producer's accuracy, user's accuracy) B) 71%, 89% C) 28%, 35% D) 35%, 28% A) 89%, 71% (producer's accuracy, user's accuracy) B) 71%, 89% C) 28%, 35% D) 35%, 28%

Exam 6: Remote Sensing Data Analysis

In order to monitor the growth of cotton in an area (in the northern hemisphere), we acquired QuickBird images taken every month from June to October. The images have been georeferenced and geometrically corrected. If the images have good contrasts and contain no noises, which type of image processing is still needed for the comparison between these images?

(Multiple Choice)

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Question 21

Solar elevation angles at a particular location on the surface of the earth

(Multiple Choice)

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Question 22

On a ratio image produced by Landsat TM Band 4 (NIR) / Landsat TM Band 3 (Red), if a pixel has a value much larger than 1.0, it is

(Multiple Choice)

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Question 23

Which of the following statements is true?

(Multiple Choice)

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Question 24

The particle theory of EMR suggests that

(Multiple Choice)

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Question 25

The parallelepiped classifier defines the class boundaries in terms of

(Multiple Choice)

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Question 26

Image classification is a process of

(Multiple Choice)

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Question 27

Geometric correction with the nearest neighbour method

(Multiple Choice)

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Question 28

The brightness value of a pixel in a digital image is recorded as

(Multiple Choice)

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Question 29

A high-pass filter can be used to

(Multiple Choice)

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Question 30

Landsat MSS sensor has a spatial resolution of 80m. It means

(Multiple Choice)

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Question 31

If an image's orientation does not align with the north-south direction, which type of image procession should be used?

(Multiple Choice)

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Question 32

In remote sensing, electromagnetic waves are characterised by

(Multiple Choice)

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Question 33

According to the classification error matrix below, what are the producer's accuracy and user's accuracy for the forest class? Urban Forest Cropland Row Total Urban 7 2 1 10 Forest 2 25 8 35 Cropland 3 1 51 55 Column Total 12 28 60 100

(Multiple Choice)

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Question 34

Solar elevation angles at a particular location on the surface of the earth

On a ratio image produced by Landsat TM Band 4 (NIR) / Landsat TM Band 3 (Red), if a pixel has a value much larger than 1.0, it is

Which of the following statements is true?

The particle theory of EMR suggests that

The parallelepiped classifier defines the class boundaries in terms of

Image classification is a process of

Geometric correction with the nearest neighbour method

The brightness value of a pixel in a digital image is recorded as

A high-pass filter can be used to

Landsat MSS sensor has a spatial resolution of 80m. It means

If an image's orientation does not align with the north-south direction, which type of image procession should be used?

In remote sensing, electromagnetic waves are characterised by

According to the classification error matrix below, what are the producer's accuracy and user's accuracy for the forest class? Urban Forest Cropland Row Total Urban 7 2 1 10 Forest 2 25 8 35 Cropland 3 1 51 55 Column Total 12 28 60 100

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