EP2588913A1 - Low-noise bioccular digital vision device - Google Patents
Low-noise bioccular digital vision deviceInfo
- Publication number
- EP2588913A1 EP2588913A1 EP11728274.9A EP11728274A EP2588913A1 EP 2588913 A1 EP2588913 A1 EP 2588913A1 EP 11728274 A EP11728274 A EP 11728274A EP 2588913 A1 EP2588913 A1 EP 2588913A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- digital
- eyepieces
- sensor
- noise
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/002—Special television systems not provided for by H04N7/007 - H04N7/18
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
Definitions
- the present invention relates to a biocular digital vision device such as binoculars and in particular night vision binoculars.
- night vision goggles com ⁇ having two optical channels each having a light intensifier sensor equipped with an element of resti ⁇ tution of images, such as a screen associated with a plurality of lenses to form an eye.
- a lens or a group of lenses is generally disposed in front of the sensor to allow approximation or magnification.
- the temporal noises between the images scattered by each eyepiece are independent and decorrelated.
- the brain of the observer ⁇ springs to average these noises so that the image actually perceived by the observer pre ⁇ feel reduced noise compared to images presented to each eye. This equates to a quadratic averaging and allows a theoretical gain, equal to the square root of two, on the signal-to-noise ratio.
- binoculars comprising only an optical path to the sensor and then separate therefrom to the eyepieces.
- These binoculars then comprise a single sensor connected by a separator to each eyepiece.
- Such binoculars comprise a single lens group and possibly a single light intensifier.
- the images broadcast by the eyepieces are then identical so that the brain can achieve no averaging to reduce the noise present in the images. It is then necessary to provide a milking ⁇ digital to reduce noise or to use a better sensor, which is expensive.
- An object of the invention is to obviate the aforementioned drawbacks.
- a biocular digital vision device comprising a digital sensor connected to two image restoration elements each belonging to an eyepiece, the device comprising a delay module for establishing a time lag between the renditions of images made by the two eyepieces.
- the same image stream is sent to both oculai ⁇ res.
- the images simultaneously perceived by the right eye and the left eye are different because of the time shift. These images are therefore affected by noises that are decorrelated.
- the brain can then use the images perceived simultaneously by both eyes to operate averaging to reduce noise by a factor equal to the square root of two.
- the provisions tif ⁇ of the invention allows a better view of the images, particularly in light conditions dif- ficiles.
- the time offset is equivalent to at least one frame of the video signal and, advantageously, the video signal has a frequency of between about 25 and 60 Hertz.
- a frame is sufficient to obtain the desired effect without the time shift being perceptible by the observer.
- the processing unit is connected to the eye by a signal splitter and the timer module is mounted in ⁇ be the signal splitter and one of the eyepieces.
- This embodiment is particularly sim ⁇ ple.
- the device may also include a digital processing device.
- the device comprises a stabilization module and, preferably, the stabili ⁇ tion module is incorporated in the treatment member.
- the dispo ⁇ operative part comprises a light intensifier mounted in front of the sensor.
- the digital vision device of the invention is a biocular device comprising a housing 1 incorporating a digital processing unit 2 connected, on the one hand, to a sensor 3 and, on the other hand, with two image restoration elements 4.1, 4.2 forming eyepieces 5.1, 5.2.
- the sensor 3 is for example a CMOS or CCD sensor.
- a group of lenses 6 for approximation or a range of rap ⁇ close to predetermined.
- the intensifier may be a IL tube or other member designed to amplify the light beam having passed through the lens group 6 such that the light beam impinging on the cap ⁇ tor 3 has an increased intensity compared to doing ⁇ light CWater entering the device.
- the image rendering elements 4.1, 4.2 are OLED or LCD type screens with respect to which output lenses 7.1, 7.2 are arranged.
- ⁇ dis tance between the screen and the exit lens 7.1, 7.2 is advantageously adjustable to allow adaptation to the view of the observer.
- the processor 2 is arranged to emit a digital video signal to the image restitution element 4.1, 4.2 of each ocu ⁇ 5.1, 5.2.
- the video signal has a frequency of, for example, 25 Hertz.
- the processing member 2 further incorporates a stabilization module.
- the treatment organ 2 is connected to the eyepieces
- the device comprises a delay module 9 mounted between the signal separator 8 and the image recovery element 4.1.
- the delay module 9 is arranged to establish a time shift between the image resti ⁇ tions performed by the two eyepieces 5.1,
- the time offset is equivalent to at least one frame of the video signal.
- the image restitution element 4.1 receives a video signal delayed by one frame by rap ⁇ port to the video signal received at the same time by the image restitution element 4.2.
- the device may have a structure different from that described:
- the separator is optional, two channels can leave the treatment unit,
- the timer module can be integrated to the treatment member or of resti ⁇ tution picture element
- the treatment unit is optional and the sensor can be connected directly to the separator 8 and, optionally, be arranged to ef ⁇ perform signal processing.
- the device may or may not include a light intensifier, operate in visible or infrared light ...
- the device can be twins or at ⁇ be viewing device with two eyepieces, such as a microscope.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1055312A FR2962232B1 (en) | 2010-07-01 | 2010-07-01 | LOW NOISE BIOCULAR DIGITAL VISION DEVICE |
PCT/EP2011/060926 WO2012001056A1 (en) | 2010-07-01 | 2011-06-29 | Low-noise bioccular digital vision device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2588913A1 true EP2588913A1 (en) | 2013-05-08 |
Family
ID=43430983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11728274.9A Withdrawn EP2588913A1 (en) | 2010-07-01 | 2011-06-29 | Low-noise bioccular digital vision device |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130100262A1 (en) |
EP (1) | EP2588913A1 (en) |
FR (1) | FR2962232B1 (en) |
IL (1) | IL223650A (en) |
WO (1) | WO2012001056A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9661232B2 (en) * | 2010-08-12 | 2017-05-23 | John G. Posa | Apparatus and method providing auto zoom in response to relative movement of target subject matter |
AT511923B1 (en) * | 2011-08-24 | 2015-06-15 | Swarovski Optik Kg | FERNOPTICAL DEVICE |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995013564A1 (en) * | 1993-11-09 | 1995-05-18 | Eric Martin White | Method and apparatus for visualizing two-dimensional motion picture images in three dimensions |
US5880777A (en) * | 1996-04-15 | 1999-03-09 | Massachusetts Institute Of Technology | Low-light-level imaging and image processing |
US5777715A (en) * | 1997-01-21 | 1998-07-07 | Allen Vision Systems, Inc. | Low vision rehabilitation system |
US20030103136A1 (en) * | 2001-12-05 | 2003-06-05 | Koninklijke Philips Electronics N.V. | Method and system for 2D/3D illusion generation |
US7795574B2 (en) * | 2004-02-23 | 2010-09-14 | Xenonics, Inc. | Low-light viewing device for displaying image based on visible and near infrared light |
FR2901086B1 (en) * | 2006-05-11 | 2008-08-01 | Sagem Defense Securite | METHOD AND DEVICE FOR VISION RESTITUTION WITH TWO EYE-FREE OCULARS |
-
2010
- 2010-07-01 FR FR1055312A patent/FR2962232B1/en active Active
-
2011
- 2011-06-29 WO PCT/EP2011/060926 patent/WO2012001056A1/en active Application Filing
- 2011-06-29 EP EP11728274.9A patent/EP2588913A1/en not_active Withdrawn
- 2011-06-29 US US13/807,885 patent/US20130100262A1/en not_active Abandoned
-
2012
- 2012-12-16 IL IL223650A patent/IL223650A/en active IP Right Grant
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2012001056A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2962232B1 (en) | 2012-08-10 |
US20130100262A1 (en) | 2013-04-25 |
IL223650A (en) | 2017-04-30 |
FR2962232A1 (en) | 2012-01-06 |
WO2012001056A1 (en) | 2012-01-05 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20121213 |
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Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SAGEM DEFENSE SECURITE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SAFRAN ELECTRONICS & DEFENSE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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17Q | First examination report despatched |
Effective date: 20180619 |
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17Q | First examination report despatched |
Effective date: 20180625 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20181106 |