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Articoli di riviste sul tema "Optical pattern recognition"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 29 luglio 2024

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1

Solus, Dávid, Ľuboš Ovseník e Ján Turán. "Microchip Pattern Recognition Based on Optical Correlator". Acta Electrotechnica et Informatica 17, n. 2 (1 giugno 2017): 38–42. http://dx.doi.org/10.15546/aeei-2017-0014.

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2

Kumar, Virendra. "Guest Editorial: Optical Pattern Recognition". Optical Engineering 29, n. 9 (1990): 993. http://dx.doi.org/10.1117/12.150767.

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3

Refregier, Ph. "Optical pattern recognition: optimal trade-off circular harmonic filters". Optics Communications 86, n. 2 (novembre 1991): 113–18. http://dx.doi.org/10.1016/0030-4018(91)90544-n.

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4

Mahlab, Uri, H. John Caulfield e Joseph Shamir. "Genetic algorithm for optical pattern recognition". Optics Letters 16, n. 9 (1 maggio 1991): 648. http://dx.doi.org/10.1364/ol.16.000648.

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5

Tozer, B. "Optical pattern recognition using holographic techniques". Optics & Laser Technology 20, n. 5 (ottobre 1988): 274. http://dx.doi.org/10.1016/0030-3992(88)90032-1.

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6

Mahlab, Uri, Michael Fleisher e Joseph Shamir. "Error probability in optical pattern recognition". Optics Communications 77, n. 5-6 (luglio 1990): 415–22. http://dx.doi.org/10.1016/0030-4018(90)90137-i.

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7

Parrish, E. A., A. O. Anyiwo e T. E. Batchman. "Integrated optical processors in pattern recognition". Pattern Recognition 18, n. 3-4 (gennaio 1985): 227–40. http://dx.doi.org/10.1016/0031-3203(85)90048-2.

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8

Carhart, Gary W., Bret F. Draayer e Michael K. Giles. "Optical pattern recognition using bayesian classification". Pattern Recognition 27, n. 4 (aprile 1994): 587–606. http://dx.doi.org/10.1016/0031-3203(94)90039-6.

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9

Chang, Shoude, Philippe Gagné e Henri H. Arsenault. "Optical Intensity Filters for Pattern Recognition". Journal of Modern Optics 42, n. 10 (ottobre 1995): 2041–50. http://dx.doi.org/10.1080/09500349514551771.

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10

Liu, Hua-Kuang. "Self-amplified optical pattern-recognition technique". Applied Optics 31, n. 14 (10 maggio 1992): 2568. http://dx.doi.org/10.1364/ao.31.002568.

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11

Kumar, B. V. K. Vijaya, Z. Bahri e L. Hassebrook. "Correlation Filters for Optical Pattern Recognition". IETE Journal of Research 35, n. 2 (marzo 1989): 105–13. http://dx.doi.org/10.1080/03772063.1989.11436800.

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12

Yu, F. T. S., e D. A. Gregory. "Optical pattern recognition: architectures and techniques". Proceedings of the IEEE 84, n. 5 (maggio 1996): 733–52. http://dx.doi.org/10.1109/5.488743.

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13

Thalmann, R. "Optical pattern recognition using holographic techniques". Optics and Lasers in Engineering 11, n. 3 (gennaio 1989): 217–19. http://dx.doi.org/10.1016/0143-8166(89)90032-8.

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14

Lee, Minhoon, Hobin Kim, Mikyeong Moon e Seung-Min Park. "Computer-Vision-Based Advanced Optical Music Recognition System". Journal of Computational and Theoretical Nanoscience 18, n. 5 (1 maggio 2021): 1345–51. http://dx.doi.org/10.1166/jctn.2021.9626.

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Abstract (sommario):

Computer vision is an artificial intelligence technology that studies techniques for extracting information from images. Several studies have been performed to identify and edit music scores using computer vision. This study proposes a system to identify musical notes and print arranged music. Music is produced by general rules; consequently, the components of music have specific patterns. There are four approaches in pattern recognition that can be used classify images using patterns. Our proposed method of identifying music sheets is as follows. Several pretreatment processes (image binary, noise and staff elimination, image resizing) are performed to aid the identification. The components of the music sheet are identified by statistical pattern recognition. Applying an artificial intelligence model (Markov chain) to extracted music data aids in arranging the data. From applying the pattern recognition technique, a recognition rate of 100% was shown for music sheets of low complexity. The components included in the recognition rate are signs, notes, and beats. However, there was a low recognition rate for some music sheet and can be addressed by adding a classification to the navigation process. To increase the recognition rate of the music sheet with intermediate complexity, it is necessary to refine the pre-processing process and pattern recognition algorithm. We will also apply neural network-based models to the arrangement process.

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15

Lee, Minhoon, Hobin Kim, Mikyeong Moon e Seung-Min Park. "Computer-Vision-Based Advanced Optical Music Recognition System". Journal of Computational and Theoretical Nanoscience 18, n. 5 (1 maggio 2021): 1345–51. http://dx.doi.org/10.1166/jctn.2021.9626.

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Abstract (sommario):

Computer vision is an artificial intelligence technology that studies techniques for extracting information from images. Several studies have been performed to identify and edit music scores using computer vision. This study proposes a system to identify musical notes and print arranged music. Music is produced by general rules; consequently, the components of music have specific patterns. There are four approaches in pattern recognition that can be used classify images using patterns. Our proposed method of identifying music sheets is as follows. Several pretreatment processes (image binary, noise and staff elimination, image resizing) are performed to aid the identification. The components of the music sheet are identified by statistical pattern recognition. Applying an artificial intelligence model (Markov chain) to extracted music data aids in arranging the data. From applying the pattern recognition technique, a recognition rate of 100% was shown for music sheets of low complexity. The components included in the recognition rate are signs, notes, and beats. However, there was a low recognition rate for some music sheet and can be addressed by adding a classification to the navigation process. To increase the recognition rate of the music sheet with intermediate complexity, it is necessary to refine the pre-processing process and pattern recognition algorithm. We will also apply neural network-based models to the arrangement process.

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16

Zang, Yiming, Yong Qian, Wei Liu, Yongpeng Xu, Gehao Sheng e Xiuchen Jiang. "A Novel Partial Discharge Detection Method Based on the Photoelectric Fusion Pattern in GIL". Energies 12, n. 21 (28 ottobre 2019): 4120. http://dx.doi.org/10.3390/en12214120.

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Optical detection and ultrahigh frequency (UHF) detection are two significant methods of partial discharge (PD) detection in the gas-insulated transmission lines (GIL), however, there is a phenomenon of signals loss when using two types of detections to monitor PD signals of different defects, such as needle defect and free particle defect. This makes the optical and UHF signals not correspond strictly to the actual PD signals, and therefore the characteristic information of optical PD patterns and UHF PD patterns is incomplete which reduces the accuracy of the pattern recognition. Therefore, an image fusion algorithm based on improved non-subsampled contourlet transform (NSCT) is proposed in this study. The optical pattern is fused with the UHF pattern to achieve the complementarity of the two detection methods, avoiding the PD signals loss of different defects. By constructing the experimental platform of optical-UHF integrated detection for GIL, phase-resolved partial discharge (PRPD) patterns of three defects were obtained. After that, the image fusion algorithm based on the local entropy and the phase congruency was used to produce the photoelectric fusion PD pattern. Before the pattern recognition, 28 characteristic parameters are extracted from the photoelectric fusion pattern, and then the dimension of the feature space is reduced to eight by the principal component analysis. Finally, three kinds of classifiers, including the linear discriminant analysis (LDA), support vector machine (SVM), and k-nearest neighbor (KNN), are used for the pattern recognition. The results show that the recognition rate of all the photoelectric fusion pattern under different classifiers is higher than that of optical and UHF patterns, up to the maximum of 95%. Moreover, the photoelectric fusion pattern not only greatly improves the recognition rate of the needle defect and the free particle defect, but the recognition accuracy of the floating defect is also slightly improved.

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17

Xu, Hai Yan, Zhuo Zhang e Xue Wu Zhang. "Signal Recognition Basing on Optical Fiber Vibration Sensor". Applied Mechanics and Materials 347-350 (agosto 2013): 743–47. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.743.

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Distributed optical fiber sensor can acquire the information of physical field along time and spatial continuous distribution. It plays an important role in long-distance oil and electricity transmission and security. In this paper, the author introduced the universal steps in triggering pattern recognition, which includes signal characteristics extracting by accurate endpoint detecting, templates establishing by training, and pattern matching. By training the samples acquired in the laboratory, three templates are established. And pattern matching had been done between templates and all the samples. The results show that, 87.5 percent of the samples are matched correctly with the triggering patterns they are belonging to.

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18

Tamee, Kreangsak, Khomyuth Chaiwong, Kriengsak Yothapakdee e Preecha P. Yupapin. "Fringe patterns generated by micro-optical sensors for pattern recognition". Artificial Cells, Nanomedicine, and Biotechnology 43, n. 4 (22 gennaio 2014): 252–57. http://dx.doi.org/10.3109/21691401.2013.875034.

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19

NAGAE, Sadahiko. "Pattern Recognition by Optical Data Processing (3)". Journal of Graphic Science of Japan 20, n. 2 (1986): 7–13. http://dx.doi.org/10.5989/jsgs.20.2_7.

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20

Patil, Aparna. "Optical Character Recognition Implementation using Pattern Matching". International Journal for Research in Applied Science and Engineering Technology 7, n. 8 (31 agosto 2019): 1092–95. http://dx.doi.org/10.22214/ijraset.2019.8155.

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21

Liu, Hua-Kuang. "Bifurcating optical pattern recognition in photorefractive crystals". Optics Letters 18, n. 1 (1 gennaio 1993): 60. http://dx.doi.org/10.1364/ol.18.000060.

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22

Chang, Shoude. "Invariant optical pattern recognition using calculus descriptors". Optical Engineering 33, n. 12 (1 dicembre 1994): 4045. http://dx.doi.org/10.1117/12.183407.

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23

Mahlab, Uri, e Joseph Shamir. "Optical pattern recognition based on convex functions". Journal of the Optical Society of America A 8, n. 8 (1 agosto 1991): 1233. http://dx.doi.org/10.1364/josaa.8.001233.

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24

Zalman, Gady, e Joseph Shamir. "Reducing error probability in optical pattern recognition". Journal of the Optical Society of America A 8, n. 12 (1 dicembre 1991): 1866. http://dx.doi.org/10.1364/josaa.8.001866.

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25

Lhamon, Michael E. "Translation‐invariant optical pattern recognition without correlation". Optical Engineering 35, n. 9 (1 settembre 1996): 2700. http://dx.doi.org/10.1117/1.600835.

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26

Casasent, David P., e Elizabeth C. Botha. "Knowledge In Optical Symbolic Pattern Recognition Processors". Optical Engineering 26, n. 1 (1 gennaio 1987): 260134. http://dx.doi.org/10.1117/12.7974018.

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27

Srinivasan, Rajani, Jason Kinser, Marius Schamschula, Joseph Shamir e H. John Caulfield. "Optical syntactic pattern recognition by fuzzy scoring". Optics Letters 21, n. 11 (1 giugno 1996): 815. http://dx.doi.org/10.1364/ol.21.000815.

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28

Kober, V., V. Lashin, I. Moreno, J. Campos, L. P. Yaroslavsky e M. J. Yzuel. "Color component transformations for optical pattern recognition". Journal of the Optical Society of America A 14, n. 10 (1 ottobre 1997): 2656. http://dx.doi.org/10.1364/josaa.14.002656.

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29

Toyoda, Haruyoshi. "Pattern recognition system using optical analogue processing". Optics & Laser Technology 29, n. 1 (febbraio 1997): xiii. http://dx.doi.org/10.1016/s0030-3992(97)88163-7.

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30

Rosen, Joseph, Tuvia Kotzer e Joseph Shamir. "Optical implementation of phase extraction pattern recognition". Optics Communications 83, n. 1-2 (maggio 1991): 10–14. http://dx.doi.org/10.1016/0030-4018(91)90513-d.

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31

Cheng, Yih-Shyang. "Real-Time Shift-Invariant Optical Pattern Recognition". International Journal of High Speed Electronics and Systems 08, n. 04 (dicembre 1997): 733–48. http://dx.doi.org/10.1142/s0129156497000305.

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Abstract (sommario):

Shift invariance is an asset of the VanderLugt correlator, from which the location of the identified object is automatically specified. The development of filters which possess two or three types of invariance (shift, rotation, size, and distortion) simultaneously is reviewed. Various real-time implementation of VanderLugt as well as joint-transform correlators by utilizing spatial light modulators are also reviewed.

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32

Caulfield, H. John, e David Armitage. "Adaptive resonance theory of optical pattern recognition". Applied Optics 28, n. 19 (1 ottobre 1989): 4060. http://dx.doi.org/10.1364/ao.28.004060.

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33

Metioui, A., e L. Leclerc. "Sidelobe reduction methods in optical pattern recognition". Journal of Optics 21, n. 4 (luglio 1990): 161–70. http://dx.doi.org/10.1088/0150-536x/21/4/002.

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34

Casasent, D. "General-purpose optical pattern recognition image processors". Proceedings of the IEEE 82, n. 11 (1994): 1724–34. http://dx.doi.org/10.1109/5.333750.

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35

Lejeune, Claude, e Yunlong Sheng. "Optoneural system for invariant pattern recognition". Canadian Journal of Physics 71, n. 9-10 (1 settembre 1993): 405–9. http://dx.doi.org/10.1139/p93-063.

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An optoneural system is developed for invariant pattern recognition. The system consists of an optical correlator and a neural network. The correlator uses Fourier–Mellin spatial filters (FMF) for feature extraction. The FMF yields an unique output pattern for an input object. The present method works only with one object present in the input scene. The optical features extracted from the output pattern are shift, scale, and rotation invariant and are used as input to the neural network. The neural network is a multilayer feedforward net with back-propagation learning rule. Because of substantial reduction of the dimension of feature vectors provided by optical FMF, the small neural network is simply simulated in a personal computer. Optical experimental results are shown.

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36

Grunnet-Jepsen, A., S. Tonda e V. Laude. "Convolution-kernel-based optimal trade-off filters for optical pattern recognition". Applied Optics 35, n. 20 (10 luglio 1996): 3874. http://dx.doi.org/10.1364/ao.35.003874.

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37

Wu, Cen, Xuelin Yang e Weisheng Hu. "Binary Pattern Recognition for High-Speed Optical Signal". Recent Patents on Electrical & Electronic Engineering 6, n. 1 (1 marzo 2013): 55–62. http://dx.doi.org/10.2174/2213111611306010007.

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38

Horner, Joseph L. "Optical pattern recognition for validation and security verification". Optical Engineering 33, n. 6 (1 giugno 1994): 1752. http://dx.doi.org/10.1117/12.170736.

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39

Goldstein, Dennis H. "Phase-encoding input images for optical pattern recognition". Optical Engineering 33, n. 6 (1 giugno 1994): 1806. http://dx.doi.org/10.1117/12.171322.

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40

Ipson, S. S., W. Booth e K. F. Chang. "Coherent Optical Pattern Recognition Using Computer-Generated Holograms". International Journal of Electrical Engineering Education 28, n. 4 (ottobre 1991): 322–30. http://dx.doi.org/10.1177/002072099102800406.

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41

Davis, Jeffrey A., Don M. Cottrell, Glenn W. Bach e Roger A. Lilly. "Phase-encoded binary filters for optical pattern recognition". Applied Optics 28, n. 2 (15 gennaio 1989): 258. http://dx.doi.org/10.1364/ao.28.000258.

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42

Javidi, Bahram. "Guest Editorial: Special Section on Optical Pattern Recognition". Optical Engineering 33, n. 6 (1 giugno 1994): 1751. http://dx.doi.org/10.1117/12.181753.

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43

Wen, Zhiqing. "Fuzzy neural network for invariant optical pattern recognition". Optical Engineering 35, n. 8 (1 agosto 1996): 2188. http://dx.doi.org/10.1117/1.600825.

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44

Liu, Yue. "Optical pattern recognition by extracting least substructuring elements". Optical Engineering 38, n. 10 (1 ottobre 1999): 1694. http://dx.doi.org/10.1117/1.602221.

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45

Lee, Sing H. "Optical Implementations Of Digital Algorithms For Pattern Recognition". Optical Engineering 25, n. 1 (1 gennaio 1986): 250169. http://dx.doi.org/10.1117/12.7973781.

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46

Millán, M. S., J. Romero, M. J. Yzuel e M. Corbalán. "Optical pattern recognition based on color vision models". Optics Letters 20, n. 16 (15 agosto 1995): 1722. http://dx.doi.org/10.1364/ol.20.001722.

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47

Hsu, Magnus T. L., Joachim Knittel, Jean-Francois Morizur, Hans-A. Bachor e Warwick P. Bowen. "Optical pattern recognition via adaptive spatial homodyne detection". Journal of the Optical Society of America A 27, n. 12 (11 novembre 2010): 2583. http://dx.doi.org/10.1364/josaa.27.002583.

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48

Lin, Xin, e Junji Ohtsubo. "Terminal attractor optical associative memory for pattern recognition". Optics & Laser Technology 29, n. 1 (febbraio 1997): xiii. http://dx.doi.org/10.1016/s0030-3992(97)88158-3.

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49

Camp, William O., e Jan Van der Spiegel. "A silicon VLSI optical sensor for pattern recognition". Sensors and Actuators A: Physical 43, n. 1-3 (maggio 1994): 188–95. http://dx.doi.org/10.1016/0924-4247(93)00692-w.

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50

Lin, Xin, Masahiko Mori, Junji Ohtsubo e Masanobu Watanabe. "Terminal Attractor Optical Associative Memory for Pattern Recognition". Japanese Journal of Applied Physics 39, Part 1, No. 2B (28 febbraio 2000): 908–11. http://dx.doi.org/10.1143/jjap.39.908.

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