An Introduction to Making Phantograms

What is a “Phantogram”?

Why “Phantogram”?

Some History

Slide 5

Slide 6

Slide 7

Patents

More History

Viewing Phantograms

Drawing Phantograms

Projection of Image Points

“Y” Is The Same for Both Points

A Practical Formula

Finding “X Left” and “X Right”

Lets Treat It As A 2D Problem

Left Eye “X”

Right Eye “X”

Formulas For “X”

Creating CGI Phantograms

Photographic Phantograms

Making Them Yourself

Dual Projector Method

Dual Projector Method

Perspective Transformation

Alignment Grid

Alignment Grid

Image Target

Image Target

Image Target

Basic Camera Setup

Camera Setup

Alignment – Useful Tools

Level the Slide Bar

Set Slide Bar to 45° Angle

Center Camera on Grid and Locate Object

Setup Laser Pointer on Grid

Hang Plumb Bob From Slide Bar Center Line

Use Laser Dot To Set Center

Mount Laser Level On Slide Bar

Use Grid To Check Alignment

Shoot Grid To Test Setup

Check Setup With Grid Shot

Slide 44

Shoot Object

Procedure Using PhotoShop

Open Both Images

Corp It To Just the Target Grid

Crop It To Just The Target Grid

Image After First Crop

Perspective Crop Image

Slide 52

Restore Image Size

Slide 54

Slide 55

Finishing the Phantogram

Finishing the Phantogram

Set the “Window”

Now to make a simple anaglyph

Problems – “Fuzzy” Image

Problem – Distorted Image

Problem: Image Plane Wrong

Last Thoughts