CATRA: Interactive Measuring and Modelling of Cataracts
-
Upload
vitor-pamplona -
Category
Health & Medicine
-
view
704 -
download
6
description
Transcript of CATRA: Interactive Measuring and Modelling of Cataracts
![Page 1: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/1.jpg)
CATRA: Interactive Measuring and Modeling of Cataracts
Vitor F. Pamplona Erick B. Passos Jan Zizka Manuel M. Oliveira Everett Lawson Esteban Clua Ramesh Raskar
MIT Media Lab – Camera Culture
![Page 2: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/2.jpg)
CATRA: Quantitative Maps for Self-assessment of Early Cataracts
![Page 3: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/3.jpg)
Vitor Pamplona , Ankit Mohan, Manuel Oliveira, Ramesh Raskar, ACM SIGGRAPH 2010
NETRA: Near Eye Tool for Refractive Assessment
![Page 4: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/4.jpg)
Main Cause of Preventable Blindness
![Page 5: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/5.jpg)
![Page 6: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/6.jpg)
Slit-Lamp Microscope
![Page 7: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/7.jpg)
![Page 8: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/8.jpg)
Computational Ophthalmology
![Page 9: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/9.jpg)
Four Stages of Interaction
Opacity Map(position, size)
Attenuation Map(brightness)
Contrast Map(contrast) PSF Map
CCCCCC
CCC
CC
CCC
CCC
CC
CC
Occlusion Scattering
![Page 10: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/10.jpg)
![Page 11: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/11.jpg)
![Page 12: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/12.jpg)
![Page 13: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/13.jpg)
Four Stages of Interaction
Opacity Map(position, size)
Attenuation Map(brightness)
Contrast Map(contrast) PSF Map
CCCCCC
CCC
CC
CCC
CCC
CC
CC
3mm0.6mm
Occlusion Scattering
![Page 14: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/14.jpg)
Forward Scattering Sensed on Fovea
LCD1 LensLCD2
Projection on the Fovea
Light Box
Testing Sections
![Page 15: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/15.jpg)
Forward Scattering Sensed on Fovea
LCD1 LensLCD2
Projection on the Fovea
Light Box
Testing Sections
![Page 16: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/16.jpg)
Testing Sections of the Eye Lens
LCD1 LensLCD2
![Page 17: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/17.jpg)
Trading Resolution for Brightness
LCD1 LensLCD2
Collimated
Beams
Testing Section
![Page 18: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/18.jpg)
Healthy Eye Point Spread Function = Peak
Eye PSF Visual Representation
![Page 19: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/19.jpg)
Mild Cataracts Point Spread Function
Eye PSF Visual Representation
![Page 20: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/20.jpg)
Advanced Cataracts Point Spread Function
Eye PSF Visual Representation
![Page 21: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/21.jpg)
CATRA: Measuring, Modeling and Simulation
to estimate PSF and simulate visionWe want to map the aperture
Peak
σ
![Page 22: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/22.jpg)
Cataract ScreeningPresence of
Cataracts(Binary Answer)
![Page 23: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/23.jpg)
Detecting the Presence of Cataracts
Moving patterns on LCD1
LCD1 LCD2
![Page 24: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/24.jpg)
Detecting the Presence of Cataracts
LCD1 LCD2
![Page 25: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/25.jpg)
Detecting the Presence of Cataracts
LCD1 LCD2 Eye lens
![Page 26: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/26.jpg)
Detecting the Presence of Cataracts
Perceived ImageLCD1 LCD2 Eye lens
![Page 27: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/27.jpg)
Cataract ScreeningPresence of
Cataracts(Binary Answer)
![Page 28: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/28.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Presence of Cataracts
(Binary Answer)
![Page 29: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/29.jpg)
Estimating an Opacity MapMoving patterns
on LCD1
LCD1 LCD2
![Page 30: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/30.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Presence of Cataracts
(Binary Answer)
![Page 31: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/31.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Presence of Cataracts
(Binary Answer)
![Page 32: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/32.jpg)
LCD1 LCD2
Estimating Attenuation MapsDecreasing Brightness
on the clear path
![Page 33: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/33.jpg)
Estimating Attenuation Maps
LCD1 LCD2
Same PerceivedBrightness
Decreasing Brightness
on the clear path
![Page 34: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/34.jpg)
Estimating Attenuation Maps
Perceived ImageLCD1 LCD2
Decreasing Intensity of the Clear Path
To Match Brightness
Eye
![Page 35: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/35.jpg)
Estimating Attenuation Maps
Perceived ImageLCD1 LCD2
Decreasing Intensity of the Clear Path
To Match Brightness
Eye
![Page 36: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/36.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Presence of Cataracts
(Binary Answer)
![Page 37: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/37.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Peak
Presence of Cataracts
(Binary Answer)
![Page 38: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/38.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Sub-apertureContrast Test
(Contrast Map)
Presence of Cataracts
(Binary Answer)
CCCCCC
CCC
CC
CCC
CCC
CC
CC
![Page 39: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/39.jpg)
Contrast Test
Perceived ImageLCD1 LCD2
Rotated Low Contrast Letter C
Increasing Contrast
Eye
![Page 40: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/40.jpg)
Contrast Test
Perceived ImageLCD1 LCD2
Rotated Low Contrast Letter C
Increasing Contrast
Eye
![Page 41: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/41.jpg)
Contrast Test
Perceived ImageLCD1 LCD2
Rotated Low Contrast Letter C
Increasing Contrast
Eye
![Page 42: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/42.jpg)
Contrast Test
Perceived ImageLCD1 LCD2
Rotated Low Contrast Letter C
Increasing Contrast
Press the right key
Eye
![Page 43: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/43.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Sub-apertureContrast Test
(Contrast Map)
Presence of Cataracts
(Binary Answer)
CCCCCC
CCC
CC
CCC
CCC
CC
CC
![Page 44: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/44.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Sub-apertureContrast Test
(Contrast Map) σ
Presence of Cataracts
(Binary Answer)
CCCCCC
CCC
CC
CCC
CCC
CC
CC
![Page 45: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/45.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Sub-apertureContrast Test
(Contrast Map)
Sub-aperture PSF Match(PSF Map)
Presence of Cataracts
(Binary Answer)
CCCCCC
CCC
CC
CCC
CCC
CC
CC
![Page 46: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/46.jpg)
Point Spread Function Matching
Perceived ImageLCD1 LCD2 Eye
![Page 47: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/47.jpg)
Perceived ImageLCD1 LCD2 Eye
Point Spread Function Matching
![Page 48: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/48.jpg)
Perceived ImageLCD1 LCD2 Eye
Point Spread Function Matching
![Page 49: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/49.jpg)
Perceived ImageLCD1 LCD2
Sub-aperture Point Spread Function
Eye
Point Spread Function Matching
![Page 50: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/50.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Sub-apertureContrast Test
(Contrast Map)
Sub-aperture PSF Match(PSF Map)
Presence of Cataracts
(Binary Answer)
CCCCCC
CCC
CC
CCC
CCC
CC
CC
![Page 51: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/51.jpg)
Interactive Techniques and Maps
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Sub-apertureContrast Test
(Contrast Map)
Sub-aperture PSF Match(PSF Map)
σ
Presence of Cataracts
(Binary Answer)
CCCCCC
CCC
CC
CCC
CCC
CC
CC
![Page 52: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/52.jpg)
Contrast Tests when High-Attenuated
Sub-apertureContrast Test
(Contrast Map)
Sub-aperture PSF Match(PSF Map)
Brightness Test(Attenuation Map)
Peak
Peak
CCCCCC
CCC
CC
CCC
CCC
CC
CC
High Attenuation
Low Attenuation
![Page 53: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/53.jpg)
Reducing Search Space for PSF
Position, Size and Shape
(Opacity Map)
Brightness Test(Attenuation Map)
Sub-apertureContrast Test
(Contrast Map)
Sub-aperture PSF Match(PSF Map)
CCCCCC
CCC
CC
CCC
CCC
CC
CC
Low Attenuation
High Attenuation
Presence of Cataracts
(Binary Answer)
![Page 54: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/54.jpg)
![Page 55: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/55.jpg)
Dual Monitor Stack
![Page 56: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/56.jpg)
Dual Monitor Stack
![Page 57: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/57.jpg)
Dual Monitor StackLens
Medical Monochrome
Monitors LCD Stack
![Page 58: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/58.jpg)
Cell Phone Prototype
Lens
Pinhole Mask
![Page 59: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/59.jpg)
Validation using CamerasThin Diffuser to
Simulate Cataracts
Estimated Attenuation Map Estimated PSF Map
![Page 60: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/60.jpg)
Validation using Cameras
Simulated Cataract
EstimatedOpacity Map
Measured Attenuation
(Pictures)
Estimated Attenuation
(User Interaction)
![Page 61: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/61.jpg)
Scratching Contact Lenses
Advanced Cataracts
MildCataracts
EarlyCataracts
Measured: 0.5mm2
Estimated: 0.45mm2
![Page 62: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/62.jpg)
Elderly Evaluation
![Page 63: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/63.jpg)
Rendering Cataract Effects
![Page 64: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/64.jpg)
Eye’s PSF = Summation of Sub-aperture PSF’s
For the point of focus only
![Page 65: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/65.jpg)
Depth-dependent PSF
Focal PointCloser Far
![Page 66: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/66.jpg)
Scene for Simulation
Depth Map
![Page 67: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/67.jpg)
Picture with Cataract Lenses
![Page 68: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/68.jpg)
Simulation with Estimated PSF
![Page 69: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/69.jpg)
![Page 70: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/70.jpg)
![Page 71: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/71.jpg)
![Page 72: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/72.jpg)
Bokeh Effect
![Page 73: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/73.jpg)
Limitations
• Active user participation
• One clear light path
• Retinal diseasesPatience and concentration are required to follow steps
![Page 74: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/74.jpg)
Future Clinical TestsClinical Testing Partners
for CATRALast year’s NETRA Prototypes
(29 partners in 14 countries)
![Page 75: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/75.jpg)
![Page 76: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/76.jpg)
![Page 77: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/77.jpg)
![Page 78: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/78.jpg)
![Page 79: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/79.jpg)
![Page 80: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/80.jpg)
![Page 81: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/81.jpg)
![Page 82: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/82.jpg)
![Page 83: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/83.jpg)
![Page 84: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/84.jpg)
![Page 85: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/85.jpg)
![Page 86: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/86.jpg)
![Page 87: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/87.jpg)
![Page 88: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/88.jpg)
![Page 89: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/89.jpg)
![Page 90: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/90.jpg)
![Page 91: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/91.jpg)
![Page 92: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/92.jpg)
Acknowledgments
Bruce SherleenShrikant CaioDon Rob
TiagoTyler Fabiano
![Page 93: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/93.jpg)
Computational Ophthalmology• A Co-design of Optics and CG for Measuring Cataracts
– Forward Scattering– Foveal Image
• Four-stage Interactive Maps – A Radar for the Cloud Cover– Better than Subjective Rating
• Simulation of an individual’s cataract-affected eye
CCCCCC
CCC
CC
CCC
CCC
CC
CC
![Page 94: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/94.jpg)
CATRA: Quantitative Maps for Self-assessment of Early Cataracts
More at: eyecatra.com
![Page 95: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/95.jpg)
![Page 96: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/96.jpg)
Mass-use Devices Scientific Instruments
![Page 97: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/97.jpg)
EyeNETRA Initiative
![Page 98: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/98.jpg)
EyeCATRA.com
CCCCCC
CCC
CC
CCC
CCC
CC
CC
LCD2LCD1
![Page 99: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/99.jpg)
Vitor Pamplona, Ankit Mohan, Manuel Oliveira, Ramesh Raskar SIGGRAPH 2010
NETRA Near Eye Tool for Refractive Assessment
![Page 100: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/100.jpg)
Preventable Blindness
![Page 101: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/101.jpg)
![Page 102: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/102.jpg)
![Page 103: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/103.jpg)
Cataract Types
Nuclear Sub-capsular Cortical
![Page 104: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/104.jpg)
Cataract Types
Nuclear Sub-capsular Cortical
![Page 105: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/105.jpg)
Cataract Types
Nuclear Sub-capsular Cortical
![Page 106: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/106.jpg)
Cataract Types
Nuclear Sub-capsular Cortical
Easier to detect
![Page 107: CATRA: Interactive Measuring and Modelling of Cataracts](https://reader037.fdocuments.us/reader037/viewer/2022102716/55583824d8b42ac6078b49ab/html5/thumbnails/107.jpg)