Анализ изображений и видео 1, осень 2012: Введение в анализ изображений

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  • 1. 1: nvassilieva@hp.com HP Labs Russia 14 2012, Computer Science Center

2. 2 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. K. Grauman 3. 3 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? Computing properties of the 3D world from one or more digital images (Trucco and Veri) Make useful decisions about real physical objects and scenes based on sensed images (Shapiro) The construction of explicit, meaningful description of physical objects from images (Ballard and Brown) 4. 4 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? . . . . , 5. 5 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Image Processing Image Analysis Computer vision Computer graphics , (Pattern recognition) (Machine learning) (Data mining) (Signal processing) (Artificial intelligence) 6. 6 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? 7. 7 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. : 1 3 (. 0.2) ( ) (. 0.35) () (. 0.35) (. 0.45) 8. 8 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ( ) ( ) ( ) (http://www.snapfishlab.com/) 9. 9 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 10. 10 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , , , 11. 11 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. (a) () () () () () CD-ROM ? () ? () () () ! 12. 12 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , 3D- 13. 13 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? 14. 14 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ( ) ( ) , ( ) ? 15. 15 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? 16. 16 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? 17. 17 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. K. Grauman 18. 18 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? 19. 19 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ( - - ) 20. 20 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , 21. 21 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , , , ? 22. 22 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 1010 23. 23 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Ba Bb 24. 24 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. I Ic Ic , 50% I , 25. 25 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 26. 26 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 27. 27 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? 28. 28 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , : S-: (blue) M-: (green) L-: (red) 29. 29 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , : , . : (R+B), (G + B) (R + G). . ( ) () 30. 30 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , 31. 31 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. , , X, Y, and Z : 1=++ zyx , ZYX X x ++ = , ZYX Y y ++ = ZYX Z z ++ = 32. 32 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. CIE xy Chromaticity Diagram () 1931. x (red) y (green) : z = 1 (x + y). . (x,y) = (1/3, 1/3) - , . . : 0The CIE 1931 chromaticity diagram. 33. 33 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Color Gamut Gamut of the CIE RGB primaries and location of primaries on the CIE 1931 xy chromaticity diagram. Typical gamuts of a monitor and of a printing device. printing device color gamut RGB monitor color gamut 34. 34 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ( , ) , : RGB (, ), CMY/CMYK (), HSI/HSV/HSL/HSB ( ), CIE Lab ( ). 35. 35 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. RGB R,G, B 8 (24- RGB ), (28)3=16,777,216 36. 36 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 20 : (), (). 37. 37 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. HSI/HSL/HSV/HSB RGB, CMY/CMYK (, ) HSI/ (Hue, Saturation, Intensity/Lightness/ Value/Brightness) (H+S) (I). 38. 38 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 3 BGR I ++ = 2 ),,min(),,max( BGRBGR L + = ),,max( BGRV = Graphical depiction of HSV (cylinder and cone) http://www.easyrgb.com/index.php?X=MATH Graphical depiction of HSL HSI/HSL/HSV/HSB 39. 39 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. CIE L*a*b - . L*a*b* : Lightness 75% Lightness 25% 40. 40 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. HCL CIE Lab color space HCL color space 41. 41 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? 42. 42 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 255typicallyand,),(0 = LLyxf 43. 43 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. (Raster dimensions) (Resolution - ppi) ( 2k) , , 44. 44 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. : 16 levels 8 levels 4 levels 2 levels : 8 bit (256 ), 16 bit png, tiff 45. 45 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. : 46. 46 Copyright 2012 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. ? , , , , , , , (occlusion),

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