Final ThesisV1

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by sudipta das biswas2 views·Updated Jun 22, 2021

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  1. I'm here to present to my final thesis which is
  2. based on a comparative study to classify the denomination and
  3. detection counterfeit of indian magnets.
  4. So with no further delay, let's start with the presentation.
  5. I would remove my uh huh better front background and
  6. you have to move into the presentation.
  7. So my presentation consists of seven slides, seven sections.
  8. Introduction, problem statement aims and objectives, literature, review, research methodology,
  9. analysis and discussion, conclusion and recommendation.
  10. Yeah. Let's move ahead.
  11. So an introduction.
  12. The moment organizations plays a crucial part.
  13. Gas transaction can easily be a victim of their currency.
  14. Annual report in 2018 says that in India it's a
  15. big concern fake news of a big concern.
  16. There has been around 5 22,000 and 8 to 300
  17. ft notes which are available in the market.
  18. We need to stop this and to stop illegal business
  19. activities and economical terrorism.
  20. What is if I see and so if I see
  21. any is fake indian currency note, which is usually used
  22. by the National Crime Records Bureau in India and the
  23. media to address fake notes.
  24. Uh, so how can machine learning help us uh to
  25. identify fake notes?
  26. So advancement in machine learning has been created.
  27. Uh, the image recognition especially they're really cost effective, accurate
  28. systems and portable and easy to use.
  29. Uh, so we're here, we're also planning or aiming to
  30. create a cost effective and efficient way of identifying.
  31. Banknotes are using deep learning and image recognition techniques related
  32. works. So most of the related works were based on
  33. optical or electrical sensors, uh focusing on the inbuilt photos
  34. instead of holographic features of the notes are based on
  35. images or visual attributes which are classified to accept features.
  36. This is mostly used in deep learning and machine learning
  37. techniques. Let's go through some examples of previous papers or
  38. study by military dancing, which was focused on Canaan for
  39. classification and S.
  40. V. M.
  41. Of a classification and H.
  42. O. G.
  43. Was used for image feature extraction, which was around 90%
  44. accurate. Then there was another study where serena nadine in
  45. which a hybrid model was used using ocr simple face
  46. recognition model and half transformation for ultraviolet clients detection.
  47. It was around 93% effective.
  48. Then there was another study by roger in which metal
  49. and Canaan techniques were used.
  50. Uh These images were cropped segmented and the intensity of
  51. the features are being used for the detection of fake
  52. notes. What are the problems with these studies?
  53. The limitations that were generally noticed were uh they were
  54. really gen rick uh for all the denominations uh limited
  55. studies on more updated and efficiency nN models uh Color
  56. spaces were not really experimented with.
  57. All invalid notes were not considered because they can also
  58. be part of fake notes are a problem for visually
  59. impaired. What makes this tastes different?
  60. So for these species, we have considered all the denominations.
  61. Uh Different color spaces have also been taken into account
  62. both handcrafted and techniques.
  63. Both hand capture techniques and CNN techniques were used uh
  64. for classification.
  65. What is the aim and objective to create a system
  66. that is accurate uh able to successfully classify denominations and
  67. identify fake notes.
  68. Outline of the objectives.
  69. To use a traditional and modern machine learning techniques to
  70. use hand crafted and also deploying techniques to extract features
  71. to do a comparative study of the models they can
  72. in SPM and CNN uh and then suggest the most
  73. appropriate and optimized approach.
  74. Uh significance and scope, contribution to successful bank no detection,
  75. uh including comparative study, which can be later used uh
  76. for further improvement Literature review in 2016, New currencies were
  77. introduced and the whole currencies, all denominations of 500 and
  78. 100 Anna were not legal anymore.
  79. So modern image recognition can make use of this newly
  80. visually different banknotes introduced for fake node dissection.
  81. Let's discuss some of the security features in the new
  82. banknotes security thread, there's a watermark micro lettering latin image
  83. portrait of Mahatma Gandhi which are also there previously.
  84. Then they're bleed lines and then see to register optically
  85. variable ink and a panel guarantee close Here are two
  86. images of Iron Ore 500 showing the features of the
  87. new banknotes.
  88. All right.
  89. So how image recognition is done using neural networks.
  90. So neuron, it was basically replicates or try to replicate
  91. human brain, how it works or is being inspired by
  92. it. Uh So it has been used to successfully to
  93. attain a lot of complex activities like speech recognition image
  94. processing. There are also successful implementation in the healthcare industry
  95. for complex structure analysis has been also used to develop
  96. intelligent traffic system and there are a lot of other
  97. examples like this.
  98. So what are the techniques that are being used here?
  99. We have used a Canon model can and model is
  100. to kenya's algorithm which is basically focused on the distance
  101. of the data points and classify the images based on
  102. the features which are closest to it.
  103. It's it's a very, quite popular um algorithm for classification.
  104. Then there is S.
  105. V. M.
  106. S. V.
  107. M belongs to linear machine learning models.
  108. They are extremely efficient, extremely accurate, Especially good when there
  109. are only two groups for classification, then there is of
  110. course the neural networks, uh, neural networks are extremely advanced,
  111. they're really efficient.
  112. Uh They have this tendency to improve their performance with
  113. more and more training.
  114. And it is, it's so it's quite advanced than usually,
  115. uh more advanced in the traditional machine learning algorithms.
  116. Uh, so for testing uh, train split, we are used
  117. to cross validation, especially the careful cross validation over here.
  118. Cross validation help in eliminating under fitting and overfitting problems.
  119. Um Kay fooled.
  120. Cross validation is especially helpful when the number of data
  121. sets are really limited.
  122. Mm And there is also a ah class imbalance in
  123. which case we use stratification or stratified, careful cross validation.
  124. Let's move into research methodology.
  125. So over here, the system is that working on images
  126. of indian magnets for verification and classification.
  127. Uh, We have considered both front and rear view of
  128. the banknotes.
  129. So, and we have included both modern and all magnets
  130. that are currently in use.
  131. So let's look at the workflow utilization of button both
  132. front and back view of images.
  133. Uh, Traditional machine learning algorithms has mused again.
  134. NNS VM.
  135. Also CNN uh neural networking has been used.
  136. H. I.
  137. G. Has been used for uh feature extraction in hand
  138. grocery techniques.
  139. Are we able to use the modern C.
  140. And techniques for feature extraction?
  141. Um Kay fold, stratified, careful cross validation has been used
  142. for testing and split a sudden evaluation metrics have been
  143. taken into consideration like area, under curve classification, accuracy, scoring
  144. position. School different colours, species had also been accounted for.
  145. This is basically the workflow.
  146. The data moves into the pre processing state.
  147. Uh It's processed and feature extraction is done.
  148. Classification model classified into different denomination, invest on the denomination
  149. denomination. It is uh fetch to that particular flow where
  150. the features are getting extracted.
  151. We referred to that classification model and then authentication is
  152. done. The data sets includes both self taken and images
  153. which are available online.
  154. Uh It included different images with different backgrounds and different
  155. lighting conditions.
  156. Pre processing was stunned where it was passed through a
  157. caution filter to remove noise and smoothing was done.
  158. Then they were transformed into two separate color spaces.
  159. RGB NLB uh to compare the performances.
  160. Feature extraction was done during one of the handcrafted techniques
  161. of H O.
  162. G. And then a neural net was like VG 19
  163. and squeezed.
  164. It train interests split was done using stratified, careful cross
  165. validation technique as discussed.
  166. Earlier evolution metrics included a UCC F on precision and
  167. recall a from school and recalled school were given the
  168. highest priority order based on the requirement.
  169. Let's look into the work floor so the images through
  170. data preparation, flu then data pre processing.
  171. The middle was transformed.
  172. Feature was extracted, shouldn't desperate was done.
  173. And then it was fed to the classification models.
  174. All the NATO was classified.
  175. And then we did the performance evaluation.
  176. Uh huh.
  177. So data filtering was done using Goshen filter remove noise.
  178. Is this is a picture of a lab color transformed
  179. image of the note.
  180. And then we moved into feature extraction in the first
  181. phase, the north for classified into different denominations.
  182. Uh and then uh feature was extracted and then fed
  183. to a different classifies of KMs human.
  184. And um ah then in the second phase After the
  185. denomination was considered uh then it features were extracted using
  186. squeeze net and GT 19 and Hawk feature.
  187. Um The features are extracted for both RGB NLB transformed
  188. images and then for two networks classifies like ken and
  189. feminine. And uh let's look at the training workflows.
  190. Both kind of transformed images like RGB NLB affair to
  191. feature extraction, which is done using hog 19, squeezing it
  192. and then train desperate was done and then fit models
  193. again and spm and neural networks and then model liberation
  194. was done on them Discussion.
  195. Okay, so for classification of notes and it was performed
  196. the best with an F one score of 0.907.
  197. Uh For classification of, not based on authenticity is being
  198. performed the best.
  199. Um When the model was trained on RGB images, squids
  200. net uh was performing better for seeing model extraction and
  201. it was not the best in the outcome, but the
  202. performance was consistent.
  203. CNN uh Squeezing it improved the performance because it was
  204. faster and more efficient and which is 19 and CNN
  205. techniques took longer than handcrafted techniques.
  206. Uh but they were much more accurate and performed better
  207. than H O G mhm extraction technique.
  208. and it takes a longer time level.
  209. Of course within.
  210. It needs more consistent and takes a fraction of time.
  211. More. Rgb color space proved to be more effective.
  212. Which was really surprising because early because of space to
  213. considered very close to humanize perception uh turned out to
  214. be less effective.
  215. So conclusion recommend recommended to use quiz net for image
  216. and merging and invest.
  217. Model can be used to classify the north based on
  218. denominations. After determining the denominations.
  219. Those can be fed to an SV model to detect
  220. its authenticity.
  221. For emails, denomination is the model should be trained for
  222. detection of technique.
  223. Notes specific is via model increases the accuracy and effectiveness
  224. of the model dramatically specific when it is specific to
  225. denominations rather than generate models.
  226. Uh So what are the future recommendation in future?
  227. A system?
  228. We recommend to create a system that can detect multiple
  229. notes of different denominations in a single scene and calculate
  230. the total valuation.
  231. That will be really good and helpful in real life.
  232. Uh Then we can also enhance the present study through
  233. various augmentation techniques applied on the images, like for example,
  234. cropping them and the object and eviction cropping it and
  235. changing its orientation.
  236. And then individual feature detection counters for security features to
  237. check authenticity of the notes.
  238. Um This can prove to be much more efficient and
  239. much more accurate.
  240. Ah So that's it from a presentation.
  241. Uh It was a pleasure.
  242. Thank you.
  243. Have a nice day.