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Course overview

Digital Visual Effects, Spring 2007 Yung-Yu Chuang

2007/2/27

Logistics

• Meeting time: 1:30pm-4:20pm, Tuesday (16 weeks, no holiday this semester, :<)

• Classroom: CSIE Room 104

• Instructor: Yung-Yu Chuang (cyy@csie.ntu.edu.tw)

• Teaching assistants: TBD

• Textbook: Readings from books, journals and proceedings.

• Webpage: (user name/password) http://www.csie.ntu.edu.tw/~cyy/vfx

• Mailing list: vfx@cmlab.csie.ntu.edu.tw subscribe via https://cmlmail.csie.ntu.edu.tw/mailman/listinfo/vfx/

Prerequisites

• It is a must that you have programming experience.

• It is a plus if you have background knowledge on computer vision, image processing and computer graphics.

• It is a plus if you have access to digital cameras and camcorders.

This course is about …

(2)

Digital Visual Effects

updated listing

Reality?

Retouching Iraq War, LA Times, April 2003

Digital photomontage

(3)

Bush campaign’s TV AD, 2004 Texture synthesis and inpainting

This course is NOT about …

It isn’t about photography

(4)

It isn’t about 3D animations It isn’t about watching movies

It isn’t about physical effects It’s not about industrial tricks

computer vision

computer graphics

image processing

You will learn more about Taylor and Poisson than Lucas in this course. Even if you hear Lucas in the class, it is more likely to refer to Bruce Lucas.

(5)

Special effects

Stop action

The execution of Mary, 1895

Glass shot Rear projection

King Kong, 1933

(6)

Special effects (make-up) Special effects (physical effects)

Special effects (miniature) Special effects (matte painting)

(7)

Lord of the Rings Illusion - forced perspective

Computer-generated model

Production pipeline

(8)

Production pipeline

Preproduction Production

Post-production

Artwork Reference Stills Plates

Storyboard

Editing VFX

Music

Sound

Film

Effects

Preproduction

Storyboard

Preproduction

Artwork

Preproduction

Reference & Research

(9)

Production

Shooting

Post-production

Visual effects production

Preproduction Production

Post-production

Artwork Reference Stills Plates

Model Geometry

Skinning

Effects Animation

Character Animation

Lighting and Rendering Compositing Matchmove and Matchmodel

Assets Shots

Skeleton

Scanning

Film Recording Textures

Materials Storyboard

Effects

Visual effects post-production

(10)

A case study

405: The Movie

• This movie were created solely by two visual effects artists in the year of 2000. It was a process that took over three months of nights, weekends and any spare moments that they could find.

• http://www.405themovie.com/

405: The Movie Making of 405

Step 0: script and shooting plan

(11)

Making of 405

Step 1: shooting

two days with a Canon Optura DV camera with progressive mode.

Ö a 70-minute raw footage initial editing

Öpickup shots

Making of 405

Step 2: building CG world

total 62 shots, 42 enhanced with digital VFX.

19 shots are entirely digital creations.

plane, two cars, freeway background are digital

photo-based 3D environment

Making of 405

Real cars were used for close-up and interior shots

A low-resolution mesh scanned by a cyberscanner.

Mapped with photographs.

Making of 405

DC-10 plane took a month to model in details for the needs of close-up shots.

59 objects, 142,439 polygons

reference modeling material painting

(12)

Making of 405

close-up shots

Step 3: traffic clearing

inpainting

clean plate

Making of 405

shot with the vehicle standing still in a backyard Step 4: compositing

Making of 405 Making of 405

Step 5: fine touchup

3D hat compositing and inpainting

(13)

Making of 405

Step 6: music and delivery

Topics we plan to cover

Camera

Canon 10D

High dynamic range imaging/display

(14)

Image warping/morphing

video

someone very famous

someone not that famous

Tracking

Feature tracking

Image stitching MatchMove

Move matching using scene planes

(15)

Matchmove

Move matching using scene planes

Matchmove

Move matching using scene planes

Video matching

MOCO (Motion control camera) Matrix

Video matching

Video matching

(16)

Matting and compositing

Titanic

Matting

Object selection

LazySnapping

Image manipulation

GraphCut Texture

(17)

Image manipulation

Poisson blending

Image-based modeling

photogrammetric modeling and projective texture-mapping

Image-based modeling

photogrammetric modeling and projective texture-mapping

Image-based modeling

photogrammetric modeling and projective texture-mapping

(18)

Image-based modeling

Tour into a picture

Image-based modeling

Tour into a picture

3D photography (active)

Cyberware whole body scanner

3D photography (active)

Photometric stereo

(19)

3D photography (passive)

Stereo

left right

depth

Image-based rendering

Surface lightfield

View interpolation

Bullet time video

View interpolation

High-Quality Video View Interpolation

(20)

Making face

Spacetime face Gollum

Video rewrite

Trainable videorealistic speech animation

Inpainting (wire removal)

Inpainting

Texture synthesis/replacement

Texture replacement

(21)

Semi-automatic matting painting

Image analogies

Video editing

Flow-based video editing

Grading

• 3 programming assignments (56%)

– HDR Imaging – AutoStitch – MatchMove

• Class participation (4%)

• Final project (40%)

– Research – System – Film

High dynamic range imaging

(22)

From last semester (吳侑親,張書瑋) From last semester (王瑋馥,余雁雲)

AutoStitch From last semester

胡仲榮

李佳燕 黃政基

(23)

MathMove

梁家愷 鐘志遠

楊宗碩 林柏劭 翁憲政 洪韶憶

姜任遠 林立峯

Final projects from a similar course in Georgia Tech.

Beauty Cream 9001

Beauty Cream 9001, GaTech DVFX 2003

Face tracking

Making of Beauty Cream 9001

(24)

Das Tattoo

Das Tattoo, GaTech DVFX 2003

Feature tracking

Making of Das Tattoo

Life in Paints

Life in Paints, GaTech DVFX 2003

Tour into pictures

Making of Life in Paints

(25)

In Your Face

In Your Face, GaTech DVFX 2002

Stop action

Making of In Your Face

Final projects from the past.

The Bug

(26)

Making of The Bug Clones

Making of Clones Magic Finger

• The film

• Making of

(27)

YoYo Flight Making of YoYo Flight

That’s it for today!

• Don’t forget to subscribe the mailing list.

• Check out the course website.

參考文獻

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