15-463 (15-862): Computational Photography15-463 (15-862): Computational PhotographyStaff• Prof: Alexei Efros (efros@cs), 4207 NSH• TA: Santosh Kumar Divvala (santosh@cs), TBAWeb Page• http://graphics.cs.cmu.edu/courses/15-463/ Discussion Forum:• cs.class.cs463TodayIntroductionOverview of the courseAdministrative stuffA bit about meAlexei (Alyosha) EfrosRelatively New faculty (RI/CSD)Ph.D 2003, from UC Berkeley (signed by Arnie!)Research Fellow, University of Oxford, ’03-’04TeachingThe plan is to have fun and learn cool things, both you and me!Social warning: I don’t see well ResearchGraphics, VisionPhD Thesis on Texture and Action SynthesisAntonio’s son cannot walk but he can fly☺Smart Erase button in MS Digital Image Pro:More recent workDerek Hoiem, Alexei Efros, Martial HebertThe Story So Far…(brief overview of prior work)Computational PhotographyDepicting Our World: The BeginningPrehistoric Painting, Lascaux Cave, France~ 13,000 -- 15,000 B.C.The Empress Theodora with her court. Ravenna, St. Vitale 6th c. Depicting Our World: Middle AgesNuns in Procession. French ms. ca. 1300. Depicting Our World: Middle AgesDepicting Our World: RenaissanceEast Doors (1452)North Doors (1424)Lorenzo Ghiberti(1378-1455)Depicting Our World: RenaissancePiero della Francesca,The Flagellation (c.1469)Depicting Our World: Toward PerfectionJan van Eyck, The Arnolfini Marriage (c.1434)Depicting Our World: Toward PerfectionLensBasedCameraObscura,1568Depicting Our World: Perfection!StillLife,LouisJaques Mande Daguerre,1837Depicting Our World: Perfection?Depicting Our World: Ongoing QuestPablo PicassoMarc ChagallDepicting Our World: Ongoing QuestAntonio Torralba & Aude Oliva (2002) David HockneyEnter Computer Graphics...GRAPHICSTraditional Computer Graphics3D geometryphysicsSimulationprojectionState of the Art•Amazingly real•But so sterile, lifeless, futuristic (why?)The richness of our everyday worldPhoto by Svetlana LazebnikBeauty in complexityUniversity Parks, OxfordWhich parts are hard to model?Photo by Svetlana LazebnikPeopleFrom “Final Fantasy”On the Tube, LondonFaces / HairPhoto by Joaquin Rosales GomezFrom “Final Fantasy”Urban ScenesVirtual LA (SGI)Photo of l LANatureRiver Cherwell, OxfordThe Realism Spectrum+ easy to create new worlds+ easy to manipulate objects/viewpoint- Very hard to look realistic+ instantly realistic+ easy to aquire- very hard to manipulate objects/viewpointComputer Graphics PhotographyComputationalPhotographyRealismManipulationEase of captureVirtual Real WorldCampanile Moviehttp://www.debevec.org/Campanile/Course OutlineProgramming Project 0The Vertigo EffectProgramming Project 1Images of the Russian Empire -- colorizing the Prokudin-Gorskii photo collectionProgramming Project 2Image Resizing by Scene CarvingProgramming Project 3Face warping and morphingProgramming Project 4Photo MosaicsFull screen panoramas (cubic): http://www.panoramas.dk/Mars: http://www.panoramas.dk/fullscreen3/f2_mars97.html2003 New Years Eve: http://www.panoramas.dk/fullscreen3/f1.htmlProgramming Project 4Automatic Mosaic StitchingProgramming Project 5Tour Into the PictureFinal ProjectSomething cool!!!Administrative StuffGrading• Written and Programming Assngments (60%)• Exam (20%)• Final Project (20%)Late Policy• Five late days total, to be spent wiselyCheating• Let’s not embarrass ourselvesHardware/Software• Graphics cluster, Wean 5336 (should have card access and login by now)• MATLAB!!!General CommentsPrerequisites• Linear algebra!!!• Some computer graphics, vision, or image processing is useful, but not required. Emphasis on programming projects!• Building something from scratch (Matlab!)ReferencesThere is no required text. Various course notes and papers will be made available. Furthermore, there is an optional textbook that you might find helpful. It will be placed on reserve at the Wean Hall library: Computer Vision: The Modern Approach, Forsyth and PonceThere is a number of other fine texts that you can use for general reference:Photography (8thedition), London and Upton, Vision Science: Photons to Phenomenology, Stephen Palmer Digital Image Processing, 2nd edition, Gonzalez and Woods Multiple View Geometry in Computer Vision, Hartley & ZissermanThe Computer Image, Watt and PolicarpoLinear Algebra and its Applications, Gilbert StrangCamerasReally coolNot too expensive nowadays (<$200)e.g. Canon
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