tour into the picture - computer sciencelazebnik/research/fall08/haohan...youichi horry, ken-ichi...

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YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS AND INTERACTIVE TECHNIQUES Tour Into the Picture

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Page 1: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI

PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS AND INTERACTIVE TECHNIQUES

Tour Into the Picture

Page 2: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

What is TIP?

Input: a single picture

Page 3: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

What is TIP?

Output: a 3D-like animation

Page 4: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

Why TIP?

Reconstruct detailed 3D model from the picture?Very difficult, even by manually calibration.

One picture is not sufficiently informative.

TIP supplies a much simplified 3D model (Box).

Page 5: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

Process Flow

Page 6: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

Process Flow

(a) Get the input image

(b) Define the background and extract the foreground mask.

(c) Inpaint the background to make it complete.We can use several image inpainting techniques today.

Page 7: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

Process Flow

(d) Build the spidery mesh by user input.

(e) Modeling the 3D background.

Page 8: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

The Method in the Original Paper

In the original paper, the authors didn’t really even reconstruct the 3D box model.

Page 9: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

The Method in the Original Paper

Interactive controlling of spidery mesh.

Page 10: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

The Method in the Original Paper

Generate the new background

Page 11: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

Current Method

If we know the vanishing point and the assumed 3D structure, we can estimate the camera.

Refer to §8.9 Single view reconstruction, Multiple View Geometry in Computer Vision.

Page 12: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

Process Flow

Attach foreground object to the model

Page 13: Tour Into the Picture - Computer Sciencelazebnik/research/fall08/haohan...YOUICHI HORRY, KEN-ICHI ANJYO, KIYOSHI ARAI PROCEEDINGS OF THE 24TH ANNUAL CONFERENCE ON COMPUTER GRAPHICS

Process Flow

Final Result