Device, system and method for cross-talk reduction in visual sensor systems

Patent metadata

Field	Value
Publication number	US-10218926-B2
Application number	US-201615216087-A
Country	US
Kind code	B2
Filing date	Jul 21, 2016
Priority date	Jul 21, 2016
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A device, system and method of cross-talk reduction in visual sensor systems is provided. A display device is configured to provide first images viewable by a first visual sensor system, and second images, viewable by a second visual sensor system. The first images and the second images have common features which align when the first images and the second images are provided concurrently. The first images comprise wavelengths viewable by the second visual sensor system. A controller determines a second visual sensor system intensity component of the first images using a response curve of the second visual sensor system. The controller reduces intensity of the second images provided at the display device by the second visual sensor system intensity component of the first images, at least when the first images and the second images are concurrently provided.

First claim

What is claimed is:

1. A system comprising:
a display device configured to provide first images, viewable by a first visual sensor system, and second images, viewable by a second visual sensor system, the first images and the second images having common features which align when the first images and the second images are provided concurrently, first images comprising wavelengths viewable by the second visual sensor system; and,
a controller configured to:
determine a second visual sensor system intensity component of the first images using a response curve of the second visual sensor system; and,
reduce intensity of the second images provided at the display device by the second visual sensor system intensity component of the first images, at least when the first images and the second images are concurrently provided,
wherein the first images comprise one or more of blue images, green images and red images, and the second images comprise one or more of the red images and infrared images,
the controller further configured to determine the second visual sensor system intensity component of the first images using the response curve of the second visual sensor system by:
multiplying the response curve by each spectral radiance curve of one or more of: the first images; and a light source used to form the first images; and
summing results of each multiplication.

2. The system of claim 1 , further comprising a memory storing: the response curve of the second visual sensor system and spectral radiance curves of one or more of the first images; and the light source used to form the first images.

3. The system of claim 1 , wherein the display device comprises one or more projectors configured to provide the first images and the second images concurrently by one or more of: interlacing the first images and the second images; alternating the first images and the second images; and co-projecting the first images and the second images.

4. The system of claim 1 , wherein the first visual sensor system comprises a human visual system and the second visual sensor system comprises a night vision sensor (“NVIS”) system.

5. The system of claim 1 , wherein the first visual sensor system comprises a human visual system and the second visual sensor system comprises a night vision (“NVIS”) sensor system; and the response curve comprises one or more of: an NVIS response curve; an NVIS-A response curve; and an NVIS-B response curve.

6. The system of claim 1 , wherein the controller is further configured to reduce the intensity of the second images provided at the display device by the second visual sensor system intensity component by integrating the second visual sensor system intensity component to determine a total intensity thereof, and reducing the intensity of the second images by the total intensity, independent of wavelength.

7. The system of claim 1 , wherein the controller is further configured to determine the second visual sensor system intensity component of the first images using the response curve of the second visual sensor system as a function of wavelength.

8. The system of claim 1 , wherein the controller is further configured to reduce the intensity of the second images provided at the display device by the second visual sensor system intensity component of the first images, as a function of wavelength.

9. A method comprising:
at a system comprising: a display device configured to provide first images, viewable by a first visual sensor system, and second images, viewable by a second visual sensor system, the first images and the second images having common features which align when the first images and the second images are provided concurrently, first images comprising wavelengths viewable by the second visual sensor system; and, a controller,
determining, at the controller, a second visual sensor system intensity component of the first images using a response curve of the second visual sensor system; and,
reducing, at the controller, intensity of the second images provided at the display device by the second visual sensor system intensity component of the first images, at least when the first images and the second images are concurrently provided,
wherein the first images comprise one or more of blue images, green images and red images, and the second images comprise one or more of the red images and infrared images,
the method further comprising determining the second visual sensor system intensity component of the first images using the response curve of the second visual sensor system by:
multiplying the response curve by each spectral radiance curve of one or more of: the first images; and a light source used to form the first images; and
summing results of each multiplication.

10. The method of claim 9 , wherein the display device comprises one or more projectors configured to provide the first images and the second images concurrently by one or more of: interlacing the first images and the second images; alternating the first images and the second images; and co-projecting the first images and the second images.

11. The method of claim 9 , wherein the first visual sensor system comprises a human visual system and the second visual sensor system comprises a night vision sensor (“NVIS”) system.

12. The method of claim 9 , wherein the first visual sensor system comprises a human visual system and the second visual sensor system comprises a night vision (“NVIS”) sensor system; and the response curve comprises one or more of: an NVIS response curve; an NVIS-A response curve; and an NVIS-B response curve.

13. The method of claim 9 , further comprising reducing the intensity of the second images provided at the display device by the second visual sensor system intensity component by integrating the second visual sensor system intensity component to determine a total intensity thereof, and reducing the intensity of the second images by the total intensity, independent of wavelength.

14. The method of claim 9 , further comprising determining the second visual sensor system intensity component of the first images using the response curve of the second visual sensor system as a function of wavelength.

15. The method of claim 9 , further comprising reducing the intensity of the second images provided at the display device by the second visual sensor system intensity component of the first images, as a function of wavelength.

16. A non-transitory computer-readable medium storing a computer program, wherein execution of the computer program is for:
at a system comprising: a display device configured to provide first images, viewable by a first visual sensor system, and second images, viewable by a second visual sensor system, the first images and the second images having common features which align when the first images and the second images are provided concurrently, first images comprising wavelengths viewable by the second visual sensor system; and, a controller,
determining, at the controller, a second visual sensor system intensity component of the first images using a response curve of the second visual sensor system; and,
reducing, at the controller, intensity of the second images provided at the display device by the second visual sensor system intensity component of the first images, at least when the first images and the second images are concurrently provided,
wherein the first images comprise one or more of blue images, green images and red images, and the second images comprise one or more of the red images and infrared images,
execution of the computer program being further for deter

Assignees

• Christie Digital Systems Usa

Inventors

• Nicholson Stuart James Myron

Classifications

• H04N7/147 Primary

  Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals (selecting H04Q) · CPC title

• H04N23/63

  by using electronic viewfinders · CPC title

• H04N9/3147 Primary

  Multi-projection systems (video walls G06F3/1446) · CPC title

• H04N7/144

  camera and display on the same optical axis, e.g. optically multiplexing the camera and display for eye to eye contact · CPC title

• H04N13/334

  using spectral multiplexing · CPC title