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Images for paper

Images for paper. By shooting. Sample collection. Hard/Soft vertical touch. timer. 5. Finger touch position. Background Subtraction. Normalization. Difference of Gaussian. Binary. Finger Analysis. Background Subtraction. Normalization. Approximate DoG. Binary. Finger Analysis.

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Images for paper

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  1. Images for paper By shooting

  2. Sample collection • Hard/Soft vertical touch timer 5 Finger touch position

  3. Background Subtraction Normalization Difference of Gaussian Binary Finger Analysis Background Subtraction Normalization Approximate DoG Binary Finger Analysis Background Subtraction Normalization Difference of Gaussian Binary Finger Analysis Background Subtraction Normalization Difference of Gaussian Threshold Mono Background Subtraction Normalization Simple Highpass Threshold

  4. IR Camera Undistortion HomoWarp Image Fusion (Blend) IR camera Undistortion HomoWarp IR Camera Undistortion HomoWarp Image Fusion (Stitching) IR camera Undistortion HomoWarp

  5. Ground Truth Error Rate Detection Result Parameter Set Detection Module Verify Next Parameter Set Generator Parameter Set Parameter Set’

  6. Training Optimal Parameter Set Ground Truth Parameter Set Detection Result Sample set Detection system

  7. Ground Truth Error Rate Detection Result Next Parameter Set Generator Verify

  8. Sample set Detection system Parameter Set Detection Result Ground Truth Training Optimal Parameter Set Detection Result Parameter Set Error Rate Ground Truth Next Parameter Set Generator Verify

  9. Test set Detection system Parameter Combination Detection Result Optimal parameter finder Optimal Parameter Combination Ground truth (Trace) Optimal parameter finder Detection Result Parameter Combination # of miss & # of false alarm Ground Truth Next Parameter Set Generator Verify

  10. Touch Data Detection System Test Set Parameter Combination Detection Result Applicable Parameters Determinator Applicable set of Parameters Ground truth (Trace)

  11. frame 1 frame 1 miss miss False alarm frame 2 frame 2

  12. miss frame 1 frame 2 frame 1 frame 2 frame 3 frame 3 frame 3 False alarm

  13. frame 1 False alarm frame 1

  14. Undistortion

  15. Dead zone

  16. Image Stiching Finger Detection Finger Tracking

  17. Image blend

  18. Hardware configuration • Order of diffuser layer and touch-glass layer spot IRcamera IRcamera Diffuser layer Touch-glass layer spot IR illuminator IR illuminator IRcamera IRcamera

  19. Modified by 510 • Order of diffuser layer and touch-glass layer spot IRcamera IRcamera 4 3 Diffuser layer Touch-glass layer 2 spot 1 IR illuminator IR illuminator IRcamera IRcamera

  20. Sampling Measure

  21. Initialize particles Initialize particles …… …… Particle generation Particle generation 1 1 2 2 M M …… …… Weight Computation Weight Computation 1 1 2 2 M M Normalize Weights Normalize Weights No No output output More iteration More iteration Yes Yes Over limited iteration Yes Resampling Exit Over limited iteration No No Resampling Yes Exit

  22. 5 2 2 5 6 1 3 4 1 2 3 6 5 4

  23. 5 2 2 5 6 1 3 4 1 2 3 6 5 4

  24. Initialize particles Particle Generation 1 2 M Weight Computation 1 2 M Normalize Weights No output More Iteration Yes Resampling Over No Yes Exit

  25. (2) IR Camera (3) IR Illuminator (1) Peripheral Projector

  26. Finger Detection System Interface Optimal Parameter Finder

  27. Dshow HLSL Direct3D GPU

  28. Multi-touch Finger Detection System Multi-touch Finger Detection System Undistortion Undistortion HomoWarp HomoWarp Image Fusion Image Blending Background Subtraction Background Subtraction Normalization Normalization Difference of Gaussian Difference of Gaussian Binary Binary Finger Analysis Finger Analysis Finger Tracking Finger Tracking GShow GShow DirectShow DirectShow

  29. Background Subtraction Normalization Difference of Gaussian Binary Finger Analysis Background Subtraction Normalization Difference of Gaussian Binary Finger Analysis

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