CONTINUOUS ADJUSTABLE 3DEEPS FILTER SPECTACLES FOR OPTIMIZED 3DEEPS STEREOSCOPIC VIEWING AND ITS CONTROL METHOD AND MEANS

• US 20090322857A1
• Filed: 09/08/2009
• Published: 12/31/2009
• Est. Priority Date: 01/23/2001
• Status: Active Grant

• Current Assignee: Kenneth Jacobs, VDPP LLC
• Original Assignee: Kenneth Martin Jacobs, Ronald Steven Karpf
• Inventors: Karpf, Ronald Steven, Jacobs, Kenneth Martin
• Granted Patent: US 7,976,159 B2
• Time in Patent Office: Days
• US Class Current: 348/42
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 30/24 involving temporal multiplexing, e.g. using sequentially activated left and right shutters
• CPC Class Codes: G02B 30/40 giving the observer of a single two-dimensional [2D] image a perception of depth
• CPC Class Codes: G02C 7/101 having an electro-optical light valve electro-optical elements per se G02F
• CPC Class Codes: H04N 13/106 Processing image signals for multi-view video sequence encoding H04N19/597
• CPC Class Codes: H04N 13/144 for flicker reduction
• CPC Class Codes: H04N 13/15 for colour aspects of image signals
• CPC Class Codes: H04N 13/156 Mixing image signals
• CPC Class Codes: H04N 13/261 with monoscopic-to-stereoscopic image conversion
• CPC Class Codes: H04N 13/334 using spectral multiplexing
• CPC Class Codes: H04N 13/337 using polarisation multiplexing
• CPC Class Codes: H04N 13/341 using temporal multiplexing
• CPC Class Codes: H04N 13/359 Switching between monoscopic and stereoscopic modes
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 2213/002 Eyestrain reduction by processing stereoscopic signals or controlling stereoscopic devices
• CPC Class Codes: H04N 2213/008 Aspects relating to glasses for viewing stereoscopic images

Abstract

Continuous Adjustable Pulfrich Filter Spectacles are provided with lenses with continuously changeable optical densities, so that viewing of 2D movies is optimized for visualization in natural 3D. Method and means are disclosed for the continuous Adjustable Pulfrich Filter Spectacles to perform two independent optimizations to achieve optimized 3Deeps visual effects on 2D movies. First they compute the optical density setting of the lenses for optimal viewing of 2D movies as 3D. Then they continuously render the lenses of the spectacles to these optical densities optimized for characteristics of the electro-optical material from which the lenses of the spectacles are fabricated. The invention works for both 3DTV and 3D Cinema theater viewing.

Claims

1. A method for providing continuous optical density control values for optimizing 3D effects on a Pulfrich Filter Spectacles with two optical density Continuously adjustable lenses, comprising:

setting a default optical density value for the two lenses in neutral state;

obtaining a motion vector value of a prominent image target in a sequence of frames in a 2D video;

obtaining a luminance value of each frame in said sequence;

calculating an optical density adjustment value on each frame comprising the steps of;

computing an retinal delay based on the motion vector value for 3D effects;

computing an adjusted luminance value to achieve said retinal delay based on the luminance value;

computing an optical density value for a lens to achieve said adjusted luminance value;

computing the optical density adjustment value based on the default optical density value;

and

composing optical density adjustment values on a sequence of frames in the 2D video as continuous optical density control values for the Pulfrich Filter Spectacles.

2. The method for providing continuous optical density control values as of claim 1, further comprising a step of:

determining the motion vector value by comparing a lateral movement of the prominent image target in the sequence of frames.

3. The method for providing continuous optical density control values as of claim 1, further comprising a step of:

measuring the luminance value of each frame in said sequence.

4. The method for providing continuous optical density control values as of claim 1, further comprising a step of:

synchronizing said continuous optical density control values with the frame displayed.

5. The method for providing continuous optical density control values as of claim 1, further comprising a step of:

providing synchronized continuous optical density control values to the Pulfrich Filter Spectacles.

6. A device for generating continuous optical density control signals for optimizing 3D effects on a Pulfrich Filter Spectacles with two optical density continuously adjustable lenses, comprising:

input means for setting a default optical density value for the two lenses in neutral state;

input means for acquiring a motion vector value of a prominent image target in a sequence of frames in a 2D video;

input means for acquiring a luminance value of each frame in said sequence;

computing means for calculating an optical density adjustment value on each frame comprising the means for;

computing an retinal delay based on the motion vector value for 3D effects;

computing an adjusted luminance value to achieve said retinal delay based on the luminance value;

computing an optical density value for a lens to achieve said adjusted luminance value;

computing the optical density adjustment value based on the default optical density value;

composing means for compiling optical density adjustment values on a sequence of frames in the 2D video as continuous optical density control values for the Pulfrich Filter Spectacles; and

transforming means for transforming said continuous optical density control values into continuous optical density control signals.

7. The device for generating continuous optical density control signals as of claim 6, further comprising:

computing means for determining the motion vector value by comparing a lateral movement of the prominent image target in the sequence of frames.

8. The device for generating continuous optical density control signals as of claim 6, further comprising:

measuring means for obtaining the luminance value of each frame in said sequence.

9. The device for generating continuous optical density control signals as of claim 6, further comprising:

synchronizing means for corresponding said continuous optical density control signals with the frame displayed.

10. The device for generating continuous optical density control signals as of claim 6, further comprising:

transmitting means for providing synchronized continuous optical density control signals to the Pulfrich Filter Spectacles.