ital 0100: elementary italian · the prokudin-gorskii photo collection. project 2: high dynamic...
TRANSCRIPT
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ITAL 0100: Elementary Italian
Prof. Cristina Abbona-Sneider
J. Walter Wilson 401
Prof. James Tompkin
CIT 477
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1.1 Around the home
Nouns
Classroom -> aula (le)
Bathroom -> bagno (il)
Living room -> soggiorno (il)
Dining room -> sala da pranzo (la)
Let’s generalize!
Room -> (la)camera
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1.1 Around the home
Nouns
Classroom -> aula
Bathroom -> bagno
Living room -> soggiorno
Dining room -> sala da pranzo
Let’s generalize!
Room -> camera
Dark room ->
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Camera obscura: dark room
• Known during classical period in China and Greece (e.g., Mo-Ti, China, 470BC to 390BC)
Illustration of Camera Obscura Freestanding camera obscura at UNC Chapel Hill
Photo by Seth Ilys
[James Hays]
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Camera obscura / lucida used for tracing
Lens Based Camera Obscura, 1568
[drawingchamber.wordpress.com]
Camera lucida
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James, San Francisco, Aug. 2017
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1.1 Around the home
Nouns
Classroom -> aula
Bathroom -> bagno
Living room -> soggiorno
Dining room -> sala da pranzo
Let’s generalize!
Room -> camera
Dark room -> camera oscura
Camera -> fotocamera
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WHAT IS COMPUTATIONAL PHOTOGRAPHY?OK, so now you know what a camera is…
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Creating Realistic Imagery
+ Great creative possibilities
+ Easy to manipulate
objects/viewpoint
- Tremendous expertise and work for realism
+ “Photoreal”
+ Easy to acquire
- Very hard to manipulate objects/viewpoint
Computer Graphics PhotographyComputational
Photography
Realism
Manipulation
Ease of capture
[Hays]
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Computational Photography
How can I use computational techniques to capture light in new ways?
How can I use computational techniques to breathe new life into the photograph?
How can I use computational techniques to synthesize and organize photo collections?
[Hays]
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Comp Photo and Related Fields
• Computer Graphics: Models to Images
• Computer Vision: Images to Models
• Computational Photography: Images to Images
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Google Pixel phones
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Lytro refocusing
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Portrait mode iOS
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Course objectives
1. You will have new abilities for visual creation.
[Hays]
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Course objectives
2. You will get a foundation in image processing (+ some low-level computer vision).
Safety Health Security
Comfort AccessFun[Hays]
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Course objectives
3. You’ll better appreciate your own visual ability.
Why can’t I focus on both my pieces and
my opponents?
[Hays]
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ABOUT YOUCameras? ML?
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ME
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I work in here.
Graphics
InteractionVision
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Super resolution
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Interactive Multi-perspective Imagery
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Warp and composite
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[Input]
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[Input with mask]
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[Input]
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Input
video
Reflectance – ‘object color’ Shading from illumination
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Naive editing Illumination-aware editing
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BORING COURSE DETAILS
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We are here to help you learn!Numair Khan
(@ US Open)
James Tompkin
Alan Yu (HTA)
Jack Kates
Zemiao Zhu
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Prerequisites
• Linear algebra, basic calculus, and probability.
• Programming, data structures.
• Love of pretty pictures
CS 129 – James Hays
• Using some of the course materials from him + previous staff – serious thanks!
• New lectures, labs, and questions
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Contact
• Course runs quiet hours – 9pm to 9am.– We will ignore you (temporarily).– We won’t ask you to submit work late (or early).
• CampusWire for content– TAs have set hours for this; they are not on all
the time. Please help each other out.
• [email protected] for admin
• Google calendar for all TA hours
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CampusWire is Piazza with Slack and GIFs
Well, kinda. It’s new; we’re trying it out.
Flexible room system for student/TA discussion.
Sign-up info removed.
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Zern Endowment for curricular innovation in STEM
• Thank you!
• We have a camera equipment pool.
• Everyone can borrow, but preference is given to those without equipment already.
• I trust you all to take good care of this equipment
• We wish to use it for future courses and let future students have the same opportunity.
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Equipment (check out via me)5x Canon t7i DSLR
2x 18-55mm lenses
2x 18-135mm lenses
2x 55-250mm lenses
1x 6.5mm fish-eye lens
2x 360 cameras
1x Lytro Illum light field camera
1x BigShot camera
3x Kinect v2 depth camera
2x AndroidThings platforms with cameras
+ polarizing filters, neutral density filters, gradient
filters
+ smartphone lenses + filters
5x Manfrotto tripods
5x cheapo monopods
10x smartphone tripods
1x self-stabilizing smartphone mount
1x i1 Display Pro monitor colour calibrator
1x x-rite colour checker chart
Green screen + experiment space
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Projects / Grading
• 100% projects + labs
• Project 0: MATLAB intro (2%)
• Projects 1-5: Structured conceptual / code (13%)
• Project 6: Final project (25%)
• Labs: 8% combined
• Grads: 10pts extra credit per project
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Hand-in via
• Projects released as zip on course webpage
• You complete the coursework in MATLAB/LaTeX
• Run ‘createSubmissionZip.m’ in MATLAB
• Upload this to Gradescope : )
Sign-up info removed.
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Labs
• Noisy lab (space-time sampling)
• RAW lab
• Crime lab (digital camera fingerprinting)
• Calibration lab
• Bilaterial filtering lab
• Night lab (Halloween)
• Light field lab
• Fast lab (Halide domain-specific language for image processing)
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Project 1: Image alignment to Colorize the Prokudin-Gorskii photo collection
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Project 2: High Dynamic Range Imaging
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Project 3: Poisson Blending
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Project 3: Poisson Blending
[Evan Wallace]
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Project 4: Graph Cuts and Applications
1D: Image Retargeting 2D: Texture Synthesis
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Project 5: Automatic Panorama Construction
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Project 5: Automatic Panorama Construction
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Project 5: Automatic Panorama Construction
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Final Project: Your Choice
Valay Shah (2012): Natural Image Matting
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Final Project: Your Choice
Ian Strickman (2012): Separation of Global and Direct Illumination using a Structure Light Projector
Input Direct Illumination Global Illumination
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Final Project: Your Choice
Yan Li (2012): Non-photorealistic Rendering
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Final Project: your choice
You (2018): Probably some deep learning thing
[He et al. 2018]
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Final Project: your choice
You (2018): Probably some deep learning thing
[Wadhwa et al. 2018]
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Final project: your choice
Take inspiration from research!
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What to do now?
• Waitlist on course webpage – Yes, we will give you override codes on time
• Install MATLAB + Image Processing toolkit
• Complete MATLAB tutorial
– You can complete it at home, and use CampusWire for discussion
• Project 0 out tonight; due Tuesday 11th
• BRING YOUR CAMERA TO LABS!
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Any questions so far?
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Arts and Crafts time:Let’s make camera obscura!
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Camera obscura: dark room
• Known during classical period in China and Greece (e.g., Mo-Ti, China, 470BC to 390BC)
Illustration of Camera Obscura Freestanding camera obscura at UNC Chapel Hill
Photo by Seth Ilys
[James Hays]
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Here’s mine
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Version 2: With optics
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Camera obscura / lucida used for tracing
Lens Based Camera Obscura, 1568
[drawingchamber.wordpress.com]
Camera lucida
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Arts and Crafts time
• Make a camera obscura
– Teams of 2 (preferred) or 3 (max).
• Resource constrained (only so many pairs of scissors):
– Ice breaker to meet your classmates
– Every time you need to borrow something, introduce yourself by name, where you are from, and describe what motivates you to take this course.
– You might need things from me; come and say hello.
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Sharing images with the class
• Shared Google Drive with Brown-only credentials
• Not a listed link
https://tinyurl.com/csci1290
• Upload your photos and we will share as a class
• Rename the file with your name
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Balcony
• Use it!
• Please be quiet and respectful while out there; it is right next to faculty offices.
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Recap:
• Get into small groups
• Design a pinhole camera obscura
• Upload a photo - https://tinyurl.com/csci1290
• Design V2
• Upload a photo - https://tinyurl.com/csci1290
• Beat my attempt!
• We’ll look at them all at the end of class.