ECE-1021 Instructor’s Project
SIRDS
Single Image Random Dot Stereograms
STATUS UPDATE #5
02 DEC 03
Goals for Today’s Date (02 NOV 03)
Project Kick-Off: 18 November 2003
Project Demo: 04 December 2003 (16 days)
Skeleton Program (Dummy SIRDS Image)
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20 Nov 03: Input Data File Format Defined
20 Nov 03: Output Data File Format Defined
22 Nov 03: User Interface Defined
25 Nov 03: Skeleton Program Tested
SIRDS Image Generation Algorithm
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20 Nov 03: Basic Approach Researched and Understood.
22 Nov 03: User Controllable Parameters Identified.
25 Nov 03: Image Generation Algorithm Finished
29 Nov 03: Algorithm Integrated into Skeleton Program
02 Dec 03: Final Product Testing and Prepare Deliverables
Project Deliverable from K.O.B.
Project Demonstration will consist of:
 Overview of Project
 What
SIRDS is.
 The specific goals of this software package.
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Algorithm Presentation
 The
basic concept of SIRDS Image Generation.
 Development of the relevant mathematical models.
 The finished Image Generation Algorithm.
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Software Demonstration
What is SIRDS?
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Single Image Random Dot Stereogram
A form of AutoStereoImage
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3D information presented in a single image.
No filter or equipment needed to separate left and right data.
Viewer decouples eye convergence length and eye focal length
to see the data in 3D.
Variations include:
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SIRTS: Single Image Random Text Stereogram
SIS: Single Image Stereogram (tiles instead of dots)
Normal AutoStereo Vision
The eye muscles tilt the eyes toward each other so that their
sight-lines converge at a certain distance.
Other eye muscles change the shape of the eye lens so that
the eyes are in focus at that same distance.
These two muscle movements are trained to act in concert,
but they can be decoupled with practice.
“Cross-eyed” AutoStereo Vision
The brain’s primary depth perception at short distances is based
on the convergence point depth.
Perceived distance
Pixel seen by right eye
Pixel seen by left eye
“Wall-eyed” AutoStereo Vision
The brain’s primary depth perception at short distances is based
on the convergence point depth.
Perceived distance
Pixel seen by left eye
Pixel seen by right eye
Wall-eyed vs. Cross-eyed
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Wall-eye images are most common.
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Cross-eyed images have some advantages.
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More comfortable to view.
Generally stronger 3D effect.
Limitation on image size, distance, and separation.
Easier to view (not more comfortable).
No limitation of size, distance, and separation.
Perceived Depth is reversed if the wrong technique is
used.
Mealstrom by Pascal Massimino
- A Wall-eyed SIS
Goals of Project
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Pull the slides from the Kick-Off Briefing.
 Minor
rewording needed.
Basic SIRDS Generation Concept
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Pull the slides from Status Update #1.
 Minor
rewording needed.
Key Mathematical Model
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Pull the slides from Status Update #3.
 Minor
rewording needed.
SIRDS Generation Algorithm
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Pull the slides from Status Update #3.
 Minor
rewording needed.
Software Demonstration
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User Interface Overview
 Pull
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Example Output
 Pull
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the slides from Status Update #3.
the slides from Status Update #4.
Actually run the program and display result.
Only remaining task is to assemble presentation
slides and walk through the presentation itself.
Project Kick-Off: 18 November 2003
Project Demo: 04 December 2003 (16 days)
Skeleton Program (Dummy SIRDS Image)




20 Nov 03: Input Data File Format Defined
20 Nov 03: Output Data File Format Defined
22 Nov 03: User Interface Defined
25 Nov 03: Skeleton Program Tested
SIRDS Image Generation Algorithm





20 Nov 03: Basic Approach Researched and Understood.
22 Nov 03: User Controllable Parameters Identified.
25 Nov 03: Image Generation Algorithm Finished
29 Nov 03: Algorithm Integrated into Skeleton Program
02 Dec 03: Final Product Testing