CHAPTER 5 RESULTS AND DISCUSSIONS 5.1....

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77 CHAPTER 5 RESULTS AND DISCUSSIONS 5.1. INTRODUCTION This chapter presents the sequence in which a video is retrieved based on different combinations of query input for video search. 5.2. SCHEMATIC SEQUENCE OF VIDEO RETRIEVAL Fig. 5.1. Training ANN

Transcript of CHAPTER 5 RESULTS AND DISCUSSIONS 5.1....

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CHAPTER 5

RESULTS AND DISCUSSIONS

5.1. INTRODUCTION

This chapter presents the sequence in which a video is retrieved based

on different combinations of query input for video search.

5.2. SCHEMATIC SEQUENCE OF VIDEO RETRIEVAL

Fig. 5.1. Training ANN

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Table 5.1. Features used for training ANN

Input to ANN Target output to ANN

Image Text Audio Video number

Frame number

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

…..

27

28

19

….

38

1 Mean (Red color map) 2 Mean (Green color map) 3 Mean (Blue color map) 4 Number of objects matching templates 5 Contrast 6 Correlation 7 Energy 8 Homogeneity 9 -28 Characters of word 29-38 Cepstrum values of portion of audio

5.3. IMAGE AS A QUERY

Step 1: A set of image is available in a folder. The image is browsed and

input as query to the proposed modules.

Step 2: The query image is enhanced, intensity adjusted. The various

objects in the image are labeled using ‘BWLABEL’. The region properties for

each object in the segmented image are obtained. The properties are

mentioned are as follows:

1. Area

2. MajorAxisLength

3. MinorAxisLength

4. Eccentricity

5. Orientation

6. Convex Area

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7. Filled Area

8. Euler Number

9. EquivDiameter

10. Solidity

11. Extent

12. Perimeter

13. Centroid

14. Bounding Box

Objects from an image can be extracted, if closed boundaries for the objects

are present.

Objects cannot be extracted if the image contains information like

cloud, water, textured lawns etc. In such case, gray level co-occurrence

matrix properties like, contrast, energy, homogeneity are obtained from the

image.

When the objects are present in the given image, the contents of the

objects within the available bounding box is compared with the templates

present as indexing file. Hence, if circles, irregular shapes are present in the

image, they can be compared with the template.

A separate template file is created for each video. Fifty videos have

been used. Features of the Video are extracted and used as inputs to ANN

for training. The contents of each video template is presented in Table 5.2

Table 5.2. Contents of template Template Contents Video 1-50

1. Numerical values of the plots presented in column 2 of Table 3.1

2. Words presented in column 2 of Table 3.2 3. Numerical values given in the Figure 3.1

 

 

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 Category 

Video name 

3 different frames 

Frame number 

Sequence of frame numbers in increasing order 

Audio name 

words  Gold wave screen shot 

BIRDS  America's Got Talent ‐ Echo of Animal Gardens V19 

 

 953          

1.jpg  1.wav  Parrot1 

 

  1019  

2.jpg  2.wav  Parrot2 

 

1830  3.jpg  3.wav  Parrot3 

  Genius Bird (1)v51 

  

315  4.jpg  4.wav  crows 

     

 

679  5.jpg  5.wav  Crow2 

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1584  6.jpg  6.wav  Crow3 

  How to Cycle Downhill V38 

  

1002  7.jpg  7.wav  Cycle1 

 

  

1040  8.jpg  8.wav  Cycle2 

 

  

1055  9.jpg  9.wav  Cycle3 

  Dramatic 747 Take Off From Bournemouth Airport V32 

 

30  10.jpg  10.wav  Plane1 

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73  11.jpg  11.wav  Plane2 

 

 

798  12.jpg  12.wav  Plane3 

 

  

13  13.jpg  13.wav  Peng1 

  Cookie the Little Penguin V2   

 

666  14.jpg  14.wav  Penguin2 

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1466  15.jpg  14.wav  Penguin3 

  Deer Attacks dog V4 

  

417  16.jpg  15.wav  Deer1 

  

463  17.jpg  16.wav  Deer2 

  

1596  18.jpg  17.wav  Deer3 

  African Lion Attack! 51 

  

113  19.jpg  18.wav  Lion1 

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193  20.jpg  19.wav  Lion2 

 

  

243  21.jpg  20.wav  Lion3 

  Sachin Tendulkar on Frankly Speaking v53    

 

1017  22.jpg  21.wav  Sachin1 

 

  

1072  23.jpg  22.wav  Sachin2 

 

  

1582  24.jpg  23.wav  sachin 

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  Ravichandran Ashwin to Umar V42   

 

9  25.jpg  24.wav  Umar1 

 

  

160  26.jpg  25.wav  Umar2 

 

  

189  27.jpg  26.wav  Umar3 

Astronomy 

Massive Diamond Planet Orbits Neutron Sta V17 

  

07  28.jpg  27.wav  Annetta1 

 

  

204  29.jpg  29.wav  Annetta2 

  

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283  30.jpg  30.wav  Annetta3 

   Tossbow returning BOOMERANGv54 

  

24  31.jpg  31.wav  Boom1 

 

  

195  32.jpg  32.wav  Boom2 

 

  

224  33.jpg  33.wav  Boom3 

Phone  Meet the new Windows Phone_ v55 

 

289  34.jpg  34.wav  Phone1 

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405  35.jpg  35.wav  Phone2 

    

798  36.jpg  36.wav  Phone3 

  MK Gandhi's Speech v56 

  

1342  37.jpg  37.wav  Gandhi1 

  

1693  38.jpg  38.wav  Gandhi2 

  

1982  39.jpg  39.wav  Gandhi3 

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Sports  How To 'Panna' Football Lessonv58 

  

365  40.jpg  40.wav  Football1 

 

  

387  41.jpg  41.wav  Football2 

 

  

412  42.jpg  42.wav  Football3 

Aircarft  Huey Helicopter taking off at the Ulster Airshow v59 

 

304  43.jpg  43.wav  Helicopter1 

 

616  44.jpg  44.wav  Helicopter2 

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745  45.jpg  45.wav  Helicopter3 

Still Don't believe in UFO's_ v60 

  

158  46.jpg  46.wav  Ufo1 

 

  

290  47.jpg  47.wav  Ufo2 

  

420  48.jpg  48.wav  Ufo3 

Ship  cruise ship almost tips 61 

  

9  49.jpg  49.wav  Ship1 

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419  50.jpg  50.wav  Ship2 

  

564  51.jpg  51.wav  Ship3 

Robot  

Russia's New Killer Robots62 

 

9  52.jpg  52.wav  Robot1 

 

104  53.jpg  53.wav  Robot2 

 

139  54.jpg  54.wav  Robot3 

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animals  marine fish feeding_ reef aquarium63   

37  55.jpg  55.wav  Fish1 

 

73  56.jpg  56.wav  Fish2 

 

139  57.jpg  57.wav  Fish3 

news  Hurricane Sandy_ Super storm's Path v40 

 

2499  58.jpg  58.wav  Storm1 

 

2954  59.jpg  59.wav  Storm2 

 

3354  60.jpg  60.wav  Storm3 

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5.4. DYNAMIC TIME WARPING

The key frame identification procedure is presented in this thesis.

Speeches of four persons while reading the statement in today’s 2011

match between India versus West indies, India won by six wickets are video

recorded in the normal environment. The persons (Table 5.4) are ‘Prasanna’-

Author (‘Pra’), ‘Purushothaman’ (‘Pur’), ‘Rajeswari’ (‘Raj’), ‘Shwetha’

(‘Shwe’). This short video is embedded at different frame location of

different videos.

The statement was read two times at different instances by ‘prasanna’

and stored as (‘Pra1’) and (‘Pra2’). The recordings of ‘Purushothaman’ as

(‘Pur1’), ‘Rajeswari’ as (‘Raj1’), and ‘Shwetha’ as ‘Shwe’ were done. The

recordings are in stereo format 16 bit. Table 5.5 shows, the number of

speech recorded at two different instances.

Table 5.4. Speech combination matrix

Person

name

‘Pra1’ ‘Pra2’ ‘Pur1’ ‘Raj1’ ‘Shwe’

‘Pra1’ √ √ √ √ √

‘Pra2’ √ √ √ √ √

‘Pur1’ √ √ √ √ √

‘Raj1’ √ √ √ √ √

‘Shwe’ √ √ √ √ √

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Table 5.5. Recordings of speech at

different instances

Person name Speech1 Speech2

‘Prasanna’ √ √

‘Purushothaman’ √

‘Rajeswari’ √

‘Shwetha’ √

Table 5.6. Plotting combinations Person Name

Comparison of matching Score

DTW Error Plot

Pra1 √ √ Pra2 √ √ Pur1 √ √ Raj1 √ √ Shwe √ √

In Row 1 of Table 5.6, ‘Pra1’ has been kept as reference which is

available in the recorded video. Speech of ‘Pra2’, ‘Pur1’, ‘Raj1’, ‘Shwe’ has

been tested to retrieve ‘Pra1’.

In Row 2 of Table 5.6, Pra2’ has been kept as reference which is

available in the recorded video. Speech of ‘Pra1’, ‘Pur1’, ‘Raj1’ and ‘Shwe’

has been tested to retrieve ‘Pra2’.

In Row 3 of Table 5.6, ‘Pur1’ has been kept as reference which is

available in the recorded video. Speech of ‘Pra1’, ‘Pra2’, ‘Raj1’,’Shwe’ has

been tested to retrieve ‘Pur1’.

In Row 4 of Table 5.6, Raj1 has been kept as reference which is

available in the recorded video. Speech of ‘Pra1’, ‘Pra2’, ‘Pur1’, ‘Shwe’ has

been tested to retrieve ‘Raj1’.

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In Row 5 of Table 5.6, ‘Shwe’ has been kept as reference which is

available in the recorded video. Speech of ‘Pra1’,’Pra2’,’Pur1’,’Raj1’ has been

tested to retrieve Pra1.

0 0.5 1 1.5 2 2.5

x 104

-0.08

-0.06

-0.04

-0.02

0

0.02

0.04

0.06

Samples

Am

plitu

de

Prasanna1Prasanna2Puru1Rajeswari1Shwetha1

Fig. 5.2. Speech of four candidates

Figure 5.2 shows the plots of speeches of all the 4 candidates.

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500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Prasanna vs prasanna , same recording

500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Fig. 5.3. DTW matching score (‘Pra1’-‘Pra1’)

Figure 5.3 presents the matching score of ‘Prasanna’ speech1 with the

same speech to show that the matching score is perfect.

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500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Prasanna1 vs Prasanna2, different recording

500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Fig. 5.4. DTW matching score

If speech 2 of ‘Prasanna’ is used to reterive the ‘Prasanna’ frame from

the videos, then the matching score is deviating as shown in Figure 5.4.

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500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Prasanna1 vs Puru1, different recording

500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Fig. 5.5. DTW matching score

If speech 1 of ‘Purushothaman’ is used to reterive the ‘Prasanna’ frame

from the videos, then the matching score is deviating as shown in Figure

5.5.

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500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Prasanna1 vs Rajeswari1, different recording

500 1000 1500

200

400

600

800

1000

1200

1400

1600

1800

Fig. 5.6. DTW matching score

If speech 1 of ‘Rajeswari’ is used to reterive the ‘Prasanna’ frame from

the videos, then the matching score is deviating as shown in Figure 5.6.

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500 1000 1500

500

1000

1500

2000

2500

shwetha1 vs Prasanna1,different recording

500 1000 1500

500

1000

1500

2000

2500

Fig. 5.7. DTW matching score

If speech 1 of ‘Shwetha’ is used to reterive the ‘Prasanna’ frame from

the videos, then the matching score is deviating as shown in Figure 5.7.

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5.4.1.Retrieval of ‘Prasanna’ with ‘Prasanna-1’ speech versus other

candidates

0 500 1000 1500 20000

500

1000

1500

2000

WaveFile-1

Wav

eeFi

le-2

Prasanna1-Prasanna1Prasanna1-Prasanna2Prasanna1-Puru1Prasanna1-Raj1Prasanna1-Shwe

Fig. 5.8. Comparisons of matching score

Figure 5.8 presents the matching scores of all the four candidates. The

blue color line indicates a perfect matching if the speech 1 of ‘Prasanna’ is

used for frame retrieval. There is a deviation of the matching scores if other

three person’s speeches are used to retrieve speech1 of ‘Prasanna’.

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0 500 1000 1500 2000-100

0

100

200

300

400

Frames

Err

or

Prasanna1-Prasanna1Prasanna1-Prasanna2Prasanna1-Puru1Prasanna1-Raj1Prasanna1-Shwe

Fig. 5.9. DTW Error plot

Figure 5.9 presents the amount of deviations present in the speech of

all the four candidates when compared to the first candidate speech. X-axis

represents the frame with 512 samples each and Y-axis represent amount of

deviations relatively with respect to the reference value ’0’. There is lot of

deviation for ‘Prasanna–Rajeswari’ and ‘Prasanna–Shwetha’. The speech

utterances of ‘Rajeswari’ and ‘Shwetha’ cannot be used to retrieve the

frames of ‘Prasanna’ as the matching is not within the limit. However,

speech of ‘Purushothaman’ can be used to retrieve the frames of ‘Prasanna’.

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5.4.2. Retrieval of ‘Prasanna’ with ‘Prasanna-2’ speech versus other

candidates

0 200 400 600 800 1000 1200 1400 1600 18000

200

400

600

800

1000

1200

1400

1600

1800

WaveFile-1

Wav

eeFi

le-2

Prasanna2-Prasanna1Prasanna2-Prasanna2Prasanna2-Puru1Prasanna2-Raj1Prasanna2-Shwe

Fig. 5.10. Comparisons of matching score for ‘Prasanna-2’-other

candidates

Figure 5.10 presents the matching scores of all the four candidates.

The green color line indicates a perfect matching if the speech 2 of

‘Prasanna’ is used for frame retrieval. There is a deviation of the matching

scores if other three person’s speeches are used to retrieve speech1 of

‘Prasanna’.

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Fig. 5.11. DTW error plot for ‘Prasanna-2’ and other candidates

Figure 5.11 presents the amount of deviations present in the speech of

all the four candidates when compared to the ‘Prasanna-2’ speech.

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5.4.3. Training RBF

1 2 3 4 5 6 7 8 9 100

20

40

60

80

Number of centres in RBF

Per

cent

age

of

wor

ds r

ecog

nize

d

Fig. 5.12. Impact of number of centers in training the audio files

Figure 5.12 shows the percentage of words recognized for different

number of centers. Each center corresponds to a word pattern.

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5.4.4. Testing RBF

1 2 3 4 5 6 7 8 9 100

2

4

6

8

10

Words

oupu

t of

RB

F

Rbf targetRbf outputError

Fig. 5.13.Performance of RBF for word matching

Figure 5.13 presents graph for the performance of RBF in matching the

audio. The blue dotted line shows the matching of the relevant words. The

black color line shows the error between the target and the outputs

obtained.

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5.5. VIDEO RETRIEVAL

5.5.1. Only image is used as input query

0

10

20

30

40

50

60

1 5 9 13 17 21 25 29 33 37 41 45 49

Exp

ecte

d vi

deo

retr

ieve

d

Random similar frame from each video

BPA

RBF

Fig. 5.14. Video retrieved for given random image

Figure 5.14 shows the performance of RBF and BPA for retrieval of video

given a random frame of image not used for training the ANN.

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Fig. 5.15. Video retrieved for the frame used in training

Figure 5.15 shows the performance of RBF and BPA for retrieval of

video given a same frame of image used for training the ANN.

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5.5.2. Only plain text is used as input query

Fig. 5.16. Video retrieved for given random text in the video

Figure 5.16 shows the performance of RBF and BPA for retrieval of

video given a random text not used for training the ANN.

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Fig. 5.17. Video retrieved for the text used in training

Figure 5.17 shows the performance of RBF and BPA for retrieval of

video given a same frame of text used for training the ANN.

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5.5.3. Only audio is used as input query

Fig. 5.18. Video retrieved for given random audio in the video

Figure 5.18 shows the performance of RBF and BPA for retrieval of

video given a random audio not used for training the ANN.

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Fig. 5.19. Video retrieved for the audio used in training

Figure 5.19 shows the performance of RBF and BPA for retrieval of

video given a same audio used for training the ANN.

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5.5.4. Multimodel approach

Fig. 5.20. Video retrieved for the combination of image + text+ audio used in training

Figure 5.20 shows the performance of RBF and BPA for retrieval of video

given a combination of image + text + audio used for training the ANN.

5.6. SUMMARY

This chapter has presented the performance of ANN algorithms in

retrieving selected videos using image, text, audio as inputs each

separately. The performance of ANN algorithms are presented for a

combined image, text and audio as input query for retrieving an expected

video.