WO2018055363A1 - Ensemble optique grand angle et procédé de commande - Google Patents

Ensemble optique grand angle et procédé de commande Download PDF

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Publication number
WO2018055363A1
WO2018055363A1 PCT/GB2017/052798 GB2017052798W WO2018055363A1 WO 2018055363 A1 WO2018055363 A1 WO 2018055363A1 GB 2017052798 W GB2017052798 W GB 2017052798W WO 2018055363 A1 WO2018055363 A1 WO 2018055363A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical element
image
curved reflector
adaptive
optical path
Prior art date
Application number
PCT/GB2017/052798
Other languages
English (en)
Inventor
Miles CHESNEY
Gareth Edwards
Original Assignee
Observant Technology Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Observant Technology Limited filed Critical Observant Technology Limited
Publication of WO2018055363A1 publication Critical patent/WO2018055363A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/02—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe with scanning movement of lens or cameras
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/58—Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0804—Catadioptric systems using two curved mirrors
    • G02B17/0816—Catadioptric systems using two curved mirrors off-axis or unobscured systems in which not all of the mirrors share a common axis of rotational symmetry, e.g. at least one of the mirrors is warped, tilted or decentered with respect to the other elements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G03B37/06—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe involving anamorphosis

Definitions

  • the present invention relates to an optical arrangement and control method. More particularly, the present invention relates to an optical arrangement comprising a curved mirror and an adaptive optical element, and a control method of the optical arrangement.
  • Panoramic cameras have been developed which use a catadioptric design, as shown schematically in Fig. l, to capture a 360 degree panoramic view in real-time using a single camera.
  • This prior art imaging apparatus uses a convex parabolic mirror 101 to capture light from a 360 degree arc in the horizontal plane and a wide range of angles in the vertical plane, such that the field of view comprises a segment of a sphere.
  • a camera 102 located below the mirror is used to capture an image of the surface of the mirror, which can then be de-warped to reconstruct a panoramic field of view.
  • One drawback of such panoramic cameras is that the resolution of the panoramic field of view that is recorded is limited by the resolution of the camera sensor. The invention is made in this context.
  • an optical assembly comprising: a curved reflector disposed on an optical path between a source of electromagnetic radiation and a target onto which the electromagnetic radiation is to be directed; an adaptive optical element disposed on the optical path between the source and the target, wherein the adaptive optical element is controllable to change an angle through which the electromagnetic radiation on the optical path is deflected by the adaptive optical element; and a controller configured to control the adaptive optical element so as to move a point at which the optical path intersects a surface of the curved reflector, thereby to produce a variation in a part of the optical path beyond the curved reflector.
  • embodiments according to the first aspect of the invention are able to produce a larger variation in the optical path than could otherwise be achieved by moving or otherwise adapting the adaptive optical element alone at the same rate. That is, the curvature of the curved reflector serves to magnify any deflection in the optical path produced by the adaptive optical element.
  • the source of electromagnetic radiation comprises a scene to be imaged
  • the target comprises an imaging sensor arranged to capture an image of the scene reflected by the curved reflector
  • the adaptive optical element is disposed at a point along the optical path between the curved reflector and the imaging sensor. In this way, the adaptive optical element can be controlled cause the imaging sensor to capture an image of a different part of the scene, by moving the point at which the optical path intersects the surface of the curved reflector.
  • the optical assembly further comprises an image processor configured to de-warp the image captured by the imaging sensor by using a de-warping algorithm to remove distortion according to a known curvature of a region of the curved reflector that is visible in the image, to obtain a de-warped image.
  • the image processor can be further configured to reconstruct a higher-resolution image of the scene from a plurality of lower-resolution images of different parts of the scene, each of the lower- resolution images being captured from a different part of the curved reflector.
  • the image processor maybe further configured to de-warp the plurality of lower-resolution images by applying an appropriate de-warping algorithm for each of the plurality of lower- resolution images, according to the particular part of the curved reflector that is visible in each lower-resolution image.
  • the image processor maybe configured to combine the plurality of lower-resolution images and then de-warp the reconstructed higher-resolution image of the scene.
  • the adaptive optical element is configured to provide a variable focal length
  • the controller is further configured to change the focal length of the adaptive optical element so as to provide an optical zoom function.
  • the source comprises a point source of electromagnetic radiation and the adaptive optical element is disposed at a point along the optical path between the curved reflector and the point source of
  • the controller can be configured to direct the electromagnetic radiation onto the target via the curved reflector by controlling the adaptive optical element to move the point at which the optical path intersects the surface of the curved reflector.
  • the source comprises a projection source configured to project an image
  • the adaptive optical element is disposed at a point along the optical path between the curved reflector and the point source of electromagnetic radiation.
  • the controller can be configured to control a direction in which the image is projected and/or a size of the projected image by controlling the adaptive optical element to move the point at which the optical path intersects the surface of the curved reflector.
  • the adaptive optical element may optionally be configured to provide a variable focal length, such that the controller can change the focal length of the adaptive optical element so as to increase or decrease the size of the projected image.
  • the adaptive optical element comprises one or more of a deformable lens, a deformable mirror, a moveable lens, or a moveable mirror.
  • the deformable or moveable mirror may have a curved surface, or may be a planar mirror.
  • the controller may further be configured to control the deformable lens to form an image of the scene on the sensor.
  • a method of controlling an optical path between a source of electromagnetic radiation and a target onto which the electromagnetic radiation is to be directed in an optical assembly comprising a curved reflector disposed on the optical path, the optical assembly further comprising an adaptive optical element disposed on the optical path between the source and the target, wherein the adaptive optical element is controllable to change an angle through which the electromagnetic radiation on the optical path is deflected by the adaptive optical element, the method comprising: controlling the adaptive optical element so as to move a point at which the optical path intersects a surface of the curved reflector, thereby to produce a variation in a part of the optical path beyond the curved reflector.
  • the source of electromagnetic radiation comprises a scene to be imaged
  • the target comprises an imaging sensor arranged to capture an image of the scene reflected by the curved reflector
  • the method further comprises controlling the adaptive optical element to move the point at which the optical path intersects the surface of the curved reflector, so as to cause the imaging sensor to capture an image of a different part of the scene.
  • the method further comprises emulating a plurality of cameras by controlling the adaptive optical element and the imaging sensor to capture a plurality of images of a plurality of different parts of the scene, and outputting one or more of the plurality of captured images as an emulated camera output for one of the plurality of cameras.
  • a computer- readable storage medium arranged to store computer program instructions which, when executed, perform a method according to the second aspect.
  • Figure l illustrates a prior art panoramic camera
  • Figure 2 illustrates an optical arrangement for enabling panning and tilting operations in a panoramic camera, according to an embodiment of the present invention
  • Figure 3 illustrates an optical arrangement according to another embodiment of the present invention
  • Figure 4 illustrates an optical arrangement comprising two secondary mirrors, according to an embodiment of the present invention
  • Figure 5 illustrates an optical arrangement for projecting electromagnetic radiation onto a target, according to an embodiment of the present invention
  • Figure 6 illustrates a deformable liquid lens comprising a segmented electrode, according to an embodiment of the present invention
  • Figure 7 is a flowchart showing a method of dewarping a zoomed image of a region of the curved reflector, according to an embodiment of the present invention.
  • Figure 8 is a flowchart showing a method of dewarping and combining a plurality of lower-resolution images to obtain a higher-resolution image, according to an embodiment of the present invention.
  • the optical assembly comprises a curved reflector 201 disposed on an optical path between a source of electromagnetic radiation and a target onto which the electromagnetic radiation is to be directed.
  • the source is the scene which is to be imaged
  • the target is an image sensor 203 which can be used to capture an image of the scene.
  • the optical assembly of the present embodiment further comprises an adaptive optical element 202 disposed on the optical path between the scene and the image sensor 203.
  • the adaptive optical element 202 is capable of being controlled to change the angle through which light is deflected by the adaptive optical element 202.
  • the optical assembly further comprises a controller 210 that is configured to control the adaptive optical element 202 in order to change the angle through which the adaptive optical element 202 deflects light.
  • the controller 210 can shift the optical path as it passes through the adaptive optical element 202, in order to move a point at which the optical path intersects the surface of the curved reflector 201.
  • the curvature of the surface of the curved reflector 201 effectively serves to magnify the deflection introduced by the adaptive optical element 202. In this way, a relatively small angular deflection in the optical path at the adaptive optical element 202 can result in a much larger angular deflection in a part of the optical path 221, 222 beyond the curved reflector 201.
  • a deformable lens for example a liquid lens
  • a deformable mirror for example a micro-mirror array
  • a moveable lens or a moveable mirror.
  • a deformable lens is a liquid lens 600, illustrated schematically in Fig. 6, in which a voltage can be applied to an annular electrode comprising a plurality of segments 601, 602, 603, 604, 605, 606, 607, 608 to control the shape of a liquid/ oil interface, allowing the focal length of the liquid lens to be adjusted.
  • the deformable lens may comprise a liquid lens with a single annular electrode rather than a segmented electrode as shown in the
  • the controller when the adaptive optical element is capable of providing a variable focal length, can be further configured to change the focal length of the adaptive optical element so as to provide an optical zoom function.
  • the adaptive optical element may include one or more individual elements, in any combination.
  • Figure 3 illustrates an embodiment in which the adaptive optical element 302 comprises a planar mirror capable of being rotated to direct light from a different part of the surface of the curved reflector 301 onto the image sensor 303.
  • Figure 4 illustrates an embodiment in which the adaptive optical element 402 comprises a plurality of planar mirrors 402a, 402b, one or both of which can be rotated to direct light from a different part of the surface of the curved reflector 401 onto the image sensor 403.
  • the adaptive optical element may include one or more transmissive elements such as adaptive lenses, in addition to reflective elements.
  • the adaptive optical element can include a moveable mirror in combination with an adaptive lens to provide a combined pan/tilt and zoom function.
  • the controller can adjust the angle of the mirror to move the point at which the optical path intersects the surface of the curved primary reflector, thereby imaging a different region of the primary reflector, and/or can adjust the focal length of the adaptive lens to provide an optical zoom function, thereby imaging a smaller or larger region of the primary reflector.
  • a moveable lens or mirror may be implemented by mounting a conventional lens or mirror on a mechanism which is configured to move the lens or mirror, for example by rotating or translating the lens or mirror along one or more axes.
  • the adaptive optical element when the adaptive optical element comprises a mirror, in some embodiments the mirror may have a curved surface configured to focus light. Furthermore, in some embodiments the adaptive optical element may comprise a convex mirror. The use of a convex mirror for the adaptive optical element can reduce the extent to which the field of view is obstructed by the adaptive optical element, since the mirror can be made smaller for the same function in comparison to a planar or concave mirror.
  • light travels along the optical path from the scene to the curved reflector 201, then to the adaptive optical element 202, and finally on to the image sensor 203.
  • light may travel along the optical path in the opposite direction, as shown in Fig. 5.
  • light travels along the optical path from a source 503, which comprises a point source of electromagnetic radiation such as a light emitting diode (LED) or laser, to the adaptive optical element 502, then to the curved reflector 501, and finally onto a target.
  • the target may be an object in a scene which is reflected in the curved reflector 501, and a controller 510 can be configured to direct the
  • This embodiment applies a similar principle to that used in the embodiment of Figs. 2 to 4, in that a relatively small deflection in the optical path at the adaptive optical element 502 is translated into a much larger variation in part of the optical path 521, 522 beyond the curved reflector 501.
  • light travels in the opposite direction along the optical path.
  • the controller 510 can omit the image processor since an image is not being formed in this embodiment.
  • the controller 510 may comprise an optical element controller 511 for controlling the adaptive optical element 502, and a memory 512 arranged to store instructions which tell the optical element controller 511 how to configure the adaptive optical element 502 in order to direct light from the source 503 onto any given target location that is visible in the surface of the curved reflector 501.
  • light from a projection source can be directed onto a scene via the surface of the curved reflector 501 to project an image into the scene.
  • the point source 503 is replaced with a source capable of forming an image, for example a digital image projector.
  • the adaptive optical element 502 may be configured to provide a variable focal length
  • the controller 510 may be further configured to change the focal length of the adaptive optical element 502 so as to increase or decrease the size of the projected image.
  • the controller 510 may further include an image pre-processor which applies a pre-distortion to an input image that is to be projected, to account for distortion introduced by the curvature of the curved reflector 501.
  • the pre-distortion can be applied using a transformation that is the inverse of the de-warping algorithms applied in the above-described
  • the adaptive optical element 202 can be configured to focus light onto the image sensor 203.
  • a separate objective lens may be omitted to reduce the complexity and cost of the optical assembly.
  • the controller 210 may be configured to control a deformable lens or mirror included in the adaptive optical element 202 to form an image of the scene on the image sensor 203.
  • a separate objective lens maybe provided between the adaptive optical element 202 and the image sensor 203 to form an image on the image sensor 202.
  • the image sensor 203 may be included in a conventional camera which includes one or more objective lenses.
  • light travels along the optical path from the scene to the curved reflector 201, then to the adaptive optical element 202, and finally on to the image sensor 203.
  • the adaptive optical element 202 is disposed at a point along the optical path between the curved reflector 201 and the imaging sensor 203, by controlling the adaptive optical element 202 to move the point at which the optical path intersects the surface of the curved reflector 201 the controller 210 can cause the imaging sensor 203 to capture an image of a different part of the scene that is reflected in a different part of the surface of the curved reflector 201.
  • the controller 210 can cause the imaging sensor 203 to capture an image of a different part of the scene that is reflected in a different part of the surface of the curved reflector 201.
  • the controller 210 further comprises an optical element controller 211 to control the adaptive optical element 202, and an image processor 212 configured to de-warp the image captured by the imaging sensor 203.
  • the controller 210 further comprises a memory 213 arranged to store a plurality of predefined de-warping algorithms each associated with a different configuration of the adaptive optical element 202.
  • the de-warping algorithms are configured to remove distortion according to a known curvature of a region of the curved reflector that is visible in the image, to obtain a de-warped image.
  • Each of the predefined de-warping algorithms can be calculated in advance from a known curvature of the part of the surface of the curved reflector 201 that will be imaged by the image sensor 203 when the adaptive optical element 202 is in a particular
  • the memory 213 may further be arranged to store computer program instructions which, when executed by the controller 210, perform any of the methods disclosed herein.
  • the image processor 212 may implement a method as shown in Fig. 7 to de-warp an image captured by the image sensor 203.
  • the image processor 212 receives the image from the image sensor 203. In the as- captured image, the scene will be distorted due to the curvature of the surface of the curved reflector 201.
  • the image processor 212 communicates with the optical element controller 211 to check which part of the curved reflector 201 is visible in the current image.
  • the appropriate de-warping algorithm associated with the identified part is retrieved from the memory 213, and is applied to the image in step S704 to remove the distortion caused by curvature of the reflector 201.
  • the de-warped image is outputted.
  • the de- warped image maybe sent to a display unit, and/or uploaded to a server, and/or stored in the memory 213.
  • the controller 210 processes a captured image to remove distortion
  • the as-captured image may be outputted without applying a de-warping algorithm.
  • the as-captured image may be displayed on a display unit, and/or may be uploaded to a server and/or stored in memory. A stored copy of the as-captured image could still be de-warped at a later stage if a distortion-free image was required.
  • a predefined de-warping algorithm suitable for the current configuration of the optical assembly may be retrieved from remote storage, for example downloaded from an Internet server.
  • the image processing unit 212 may be pre-programmed with information defining the surface geometry of the curved reflector 201, and may calculate the de- warping algorithm on an as-needed basis. For example, if the surface of the curved reflector 201 can be described mathematically by sweeping a smooth curve, such as a parabola, around a known axis, the memory 213 of the controller 210 may store equations which define the curve and the axis of rotation, enabling the image processor 212 to compute a suitable de-warping algorithm for a given region of the curved reflector 201. De-warping algorithms for removing such distortion from images are known in the art, and a detailed description will not be provided here so as not to obscure the present inventive concept.
  • the image processor 212 can be further configured to reconstruct a higher-resolution image of the scene from a plurality of lower- resolution images of different parts of the scene, each of the lower-resolution images being captured from a different part of the curved reflector 201.
  • a method of constructing a higher- resolution image from a plurality of lower- resolution images is shown in Fig. 8.
  • step S801 the image processor 212 obtains a plurality of lower-resolution images that have been capture by the image sensor 203. Then, in step S802 the image processor 212 checks which region of the curved reflector 201 is visible in each of the lower-resolution images, retrieves the appropriate de-warping algorithms from the memory 213 in step S803, and applies the relevant algorithm to each image in step S804 to de-warp the plurality of lower-resolution images. Finally, in step S805 the image processor 212 combines the plurality of de-warped lower-resolution images into a higher-resolution image of the scene. In an alternative method the order of the de- warping and combining steps may be reversed, such that image processor 212 first combines the plurality of lower- resolution images into a single higher- resolution image and then de-warps the combined image.
  • embodiments of the present invention can provide dynamic minimally-mechanical or non-mechanical panoramic view control systems.
  • a minimally mechanical system according to an embodiment of the present invention can be created by using a mirror tilt view controller to move the adaptive optical element in order to provide a pan/tilt function.
  • a non-mechanical system according to an embodiment of the present invention can be created using a deformable lens, such as a liquid lens whose shape is controlled and near-instantly changed by electrowetting as described above in relation to Fig. 6.
  • Such non- mechanical optical assemblies can achieve greater durability, dependability and longer operational system lifespan than mechanical systems.
  • a rapid pan/tilt mechanism such as a moveable secondary mirror
  • a rapid zoom mechanism such as a liquid lens
  • the combination of low- resolution large field-of-view images, and high-resolution small field-of-view images can be interleaved at the ultimate frame rate of the image sensor system.
  • This arrangement allows the system to emulate a number of independent lower frame rate pan-tilt-zoom (PTZ) cameras, each capable of scanning the entire field of view and updating

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne un ensemble optique, comprenant : un réflecteur incurvé disposé sur un trajet optique entre une source de rayonnement électromagnétique et une cible sur laquelle le rayonnement électromagnétique doit être dirigé ; un élément optique adaptatif disposé sur le trajet optique entre la source et la cible, l'élément optique adaptatif pouvant être commandé pour modifier un angle suivant lequel le rayonnement électromagnétique présent sur le trajet optique est dévié par l'élément optique adaptatif ; et un contrôleur conçu pour commander l'élément optique adaptatif de façon à déplacer un point au niveau duquel le trajet optique coupe une surface du réflecteur incurvé, ce qui permet de produire une variation dans une partie du trajet optique située au-delà du réflecteur incurvé. L'invention concerne également un procédé de commande de l'ensemble optique.
PCT/GB2017/052798 2016-09-20 2017-09-20 Ensemble optique grand angle et procédé de commande WO2018055363A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1615965.9A GB201615965D0 (en) 2016-09-20 2016-09-20 Optical assembly and control method
GB1615965.9 2016-09-20

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WO2018055363A1 true WO2018055363A1 (fr) 2018-03-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111324001A (zh) * 2018-12-14 2020-06-23 安讯士有限公司 用于全景成像的***
DE102019105225A1 (de) * 2019-03-01 2020-09-03 Deutsches Zentrum für Luft- und Raumfahrt e.V. System und Verfahren zum Aufnehmen mindestens eines Bildes eines Beobachtungsbereiches
DE102022001394B3 (de) 2022-04-23 2023-06-29 Rainer Püllen Bildaufzeichnungssystem mit mehreren Zoombereichen und Flüssigkeitsinjektionslinse

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Publication number Priority date Publication date Assignee Title
US6473241B1 (en) * 2001-11-27 2002-10-29 The United States Of America As Represented By The Secretary Of The Air Force Wide field-of-view imaging system using a reflective spatial light modulator
US20100321808A1 (en) * 2009-06-19 2010-12-23 Bentley Julie L Extreme broadband compact optical system with multiple fields of view
WO2011144521A1 (fr) * 2010-05-18 2011-11-24 Thales Systeme optique a correction dynamique de l'image
WO2013102940A1 (fr) * 2012-01-03 2013-07-11 Pan-Vision S.R.L. Objectif bifocal panoramique
US20150268464A1 (en) * 2011-07-17 2015-09-24 Ziva Corporation Optical imaging with foveation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6473241B1 (en) * 2001-11-27 2002-10-29 The United States Of America As Represented By The Secretary Of The Air Force Wide field-of-view imaging system using a reflective spatial light modulator
US20100321808A1 (en) * 2009-06-19 2010-12-23 Bentley Julie L Extreme broadband compact optical system with multiple fields of view
WO2011144521A1 (fr) * 2010-05-18 2011-11-24 Thales Systeme optique a correction dynamique de l'image
US20150268464A1 (en) * 2011-07-17 2015-09-24 Ziva Corporation Optical imaging with foveation
WO2013102940A1 (fr) * 2012-01-03 2013-07-11 Pan-Vision S.R.L. Objectif bifocal panoramique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111324001A (zh) * 2018-12-14 2020-06-23 安讯士有限公司 用于全景成像的***
CN111324001B (zh) * 2018-12-14 2021-06-22 安讯士有限公司 用于全景成像的***
DE102019105225A1 (de) * 2019-03-01 2020-09-03 Deutsches Zentrum für Luft- und Raumfahrt e.V. System und Verfahren zum Aufnehmen mindestens eines Bildes eines Beobachtungsbereiches
DE102019105225B4 (de) 2019-03-01 2023-10-19 Deutsches Zentrum für Luft- und Raumfahrt e.V. System und Verfahren zum Aufnehmen mindestens eines Bildes eines Beobachtungsbereiches
DE102022001394B3 (de) 2022-04-23 2023-06-29 Rainer Püllen Bildaufzeichnungssystem mit mehreren Zoombereichen und Flüssigkeitsinjektionslinse

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