No. of Printed Pages : 3

MGY-002

POST GRADUATE CERTIFICATE IN GEOINFORMATICS (PGCGI) Term-End Examination

00192

December, 2014

MGY-002 : REMOTE SENSING AND IMAGE INTERPRETATION

Time : 2 hours

Maximum Marks : 50

Note : All questions are compulsory. The marks for each question are indicated against it.

1.

Answer all parts : (a) Fill in the blank spaces with appropriate word(s) : 4x1=4 (i)

SLAR is an abbreviation of

(ii) The word NIR is an acronym for (iii) The word `ISODATA' stands for (iv) AVHRR is an abbreviation of

MGY-002

1

P.T.O.

(b) State if the following statements are 3x1=3 True (T) or False (F) : (i)

Microwave radiometers are examples of passive sensors.

(ii) Gray scale is a calibrated sequence of gray tones ranging from black to white. (iii) Visual Image Interpretation is about manipulation of digital number of an image. (c) Match the items given in Column A with 3x1=3 those in Column B : Column B

Column A (i)

(1) Data quality

NDVI

(ii) Cubic convolution

(2) Band ratio technique

(iii) Range

(3) Resampling technique

2.

Write short notes on any following :

four of the 4x5=20

(a)

Non-systematic errors and their correction

(b)

Types of digital images

(c)

Spectral signature of vegetation

(d)

Error matrix

(e)

Landsat mission

(f)

Elements of Visual Image Interpretation

MGY-002

2

3.

(a) Discuss the energy-atmosphere interaction in detail.

10

OR

4.

(b) Explain sensor systems with particular emphasis on multi-spectral imaging sensor system.

10

(a) Describe ground truth data and its importance. Elaborate on the types of sampling patterns.

10

OR (b)

MGY-002

Discuss image classification with emphasis on unsupervised classification in detail.

3

10

1,000

POST GRADUATE CERTIFICATE IN GEOINFORMATICS (PGCGI ...

No. of Printed Pages : 3. POST GRADUATE CERTIFICATE IN ... manipulation of digital number of an image. ... digital images. (c) Spectral signature of vegetation.

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