Tour Into the Picture [TIP]

OutlineIntroductionTIPMulti-Perspective Modeling

MotivationImpressive results using the TIP technique

TIP

By Hoi Ng 1982

The TIP Technique

Background Foreground

Background Model Foreground with meshes

Motivation (cont.)

Chinese landscape paintings

Horizontal or vertical scrolls

from Mustard Seed Garden Painting Manual, revised version by Ch’ao Hsun, 1887

Multiple Perspectives in Chinese Landscape Paintings

Eye locations

Motivation (cont.)Panorama

Compact representationEasy to produceCost effective for virtual reality (VR)

Multi-Perspective Modeling (MPM)

Solution: introduce local and global models; switch them smoothly

TIP is not applicable for multi-perspective images:

horizons at different levels multiple cavities

Sub-scene 1Sub-scene 1Sub-scene

2Sub-scene 2

MPM: Global Modeling

Global model

Rectangle Cylinder

Sphere

MPM: Sub-scene Modeling

Local model for a sub-scene

A box model as in TIP

Foreground objects as “billboards”

MPM: System Overview

Rendering

Record animation

key-frames

Render & output

animation

Generate smooth camera

path

Modeling

Build billboards for foreground

objects from mask

Model back-ground using TIP interface

Select a global model

Pre-processing

Prepare: Foreground mask Background image

Digitize the input image

Identify sub-scenes

For each sub-scene

MPM: Model Switching

Scene entry points

Panorama as Input

Sub-scene 2Sub-scene 2

Sub-scene 1Sub-scene 1

MPM: Model Switching