EP3631578A1 - Système d'éclairage et système de prise de vue pour détection volumétrique - Google Patents

Système d'éclairage et système de prise de vue pour détection volumétrique

Info

Publication number
EP3631578A1
EP3631578A1 EP18725244.0A EP18725244A EP3631578A1 EP 3631578 A1 EP3631578 A1 EP 3631578A1 EP 18725244 A EP18725244 A EP 18725244A EP 3631578 A1 EP3631578 A1 EP 3631578A1
Authority
EP
European Patent Office
Prior art keywords
illumination system
scene location
camera
light
recording
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.)
Pending
Application number
EP18725244.0A
Other languages
German (de)
English (en)
Inventor
Bernd Duckstein
Peter Kauff
Oliver Schreer
Danny TATZELT
Christian Weissig
Ingo Feldmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3631578A1 publication Critical patent/EP3631578A1/fr
Pending legal-status Critical Current

Links

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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
    • G03B15/07—Arrangements of lamps in studios
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0564—Combinations of cameras with electronic flash units characterised by the type of light source
    • G03B2215/0567—Solid-state light source, e.g. LED, laser
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0582—Reflectors
    • 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
    • G03B2215/00—Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05—Combinations of cameras with electronic flash units
    • G03B2215/0589—Diffusors, filters or refraction means
    • G03B2215/0592—Diffusors, filters or refraction means installed in front of light emitter

Definitions

  • the present application relates to a surveying system and to a recording system for volumetric capturing or the spatial detection of objects.
  • the illumination headlamps are used, which illuminate the scene selectively or diffusely.
  • the headlamps can additionally be provided with filters, for example color filters, in order to achieve specific lighting effects.
  • the present application provides a system for illuminating and recording scenes, which offers improved illumination and illumination of the objects in the scene to be recorded compared to the lighting devices used hitherto.
  • the gist of the invention is that the illumination system emits light from a light surface to form a keying background for recording the scene.
  • an illumination system for illuminating a scene location wherein the illumination system emits light from a light surface to form a keying background for a scene location photograph.
  • the light surface surrounds the scene location. In a third embodiment, the light surface surrounds the scene location on all sides.
  • the illumination system has a transmission surface diffuser and a backlight for illuminating a rear side of the transmission surface diffuser, the light surface being formed by a front side of the transmission surface diffuser opposite the rear side.
  • the lighting system comprises one or more openings in the light area, through one camera can take the scene location on ⁇ through.
  • the illumination system has a plurality of camera openings through which a camera can record the scene location.
  • the camera openings are distributed around the scene location.
  • the camera openings are arranged at the same angular distance from each other around the scene location.
  • the backlighting of the illumination system has controllable illuminants whose luminous intensity and / or luminous color can be controlled in order to form a time-varying keying background.
  • the bulbs comprise LEDs, LASER or thermal lighting means.
  • the keying background is temporally and locally variable.
  • the illumination system includes a reflector that reflects light toward the scene location.
  • the lighting system has a controller that accomplishes synchronization between one or more cameras that record the scene location and a modulation of the radiated light.
  • the controller is arranged to modulate the radiated light so that the radiation of the light is limited to an integration time of the cameras.
  • a controller is arranged to control the lighting system so that the keying background for each camera position from which the shooting of the scene location is provided, a section having a silhouette. te a projection of an object in the scene location from the respective camera position on the light surface surrounds, which differs in color and / or brightness from its environment of the section.
  • the default color of the keying background beyond the section is white for each camera position.
  • the light surface is substantially cylindrical.
  • a scene location recording system including an illumination system according to any one of Embodiments 1 to 16 for illuminating the scene location, the illumination system emitting light from a light surface to form a keying background for the scene location and wherein the recording system comprises at least one camera for recording the scene location with the keying background.
  • the camera has at least one set of cameras forming a multifocal base system.
  • the recording system includes a plurality of cameras distributed around the scene location for recording the scene type from different directions through openings in the light area.
  • the imaging system includes an image processor to discriminate between first image areas corresponding to the keying background and second image areas other than the keying background in a recording material obtained by the at least one camera.
  • the illumination system is configured to emit white light
  • the image processor is configured to use white as a key color for discrimination.
  • At least one camera comprises an active depth sensor.
  • the recording system includes microphones or speakers.
  • the imaging system further comprises an object recognizer for time-localizing an object in the scene location from a captured material by the at least one camera, the illumination system having a controller that controls the illumination system such that the keying background for each camera, a section surrounding a silhouette of a projection of the object from a camera position of the camera in the scene location onto the light surface, which differs in color and / or brightness from its surroundings of the section.
  • a method for recording a scene by means of a recording system is provided, wherein the recording system corresponds to one of the embodiments 18 to 25.
  • FIG. 1 shows a schematic illustration of a lighting system according to an exemplary embodiment
  • Fig. 2 shows a schematic representation of a recording system according to an embodiment
  • FIG. 3 shows a flowchart of a method for capturing a scene according to one embodiment.
  • FIG. 1 schematically shows an illumination system 100 for illuminating a scene location.
  • the illumination system 100 comprises a light area 110 and the scene location 120.
  • FIG. 1 shows only an example of a possible embodiment; in the present case, for example, the scene location 120 is shown in a round shape; it is, of course, possible for the scene location to be oval may have the shape of a polygon, or is quite irregularly shaped.
  • the light surface 1 10 is shown as a square and planar light surface that can illuminate the scene location from one side. This is also just one embodiment of the light surface 1 10, It is of course also possible that the light surface 1 10 is not square or planar, but may have a different shape.
  • the light surface 110 may be round, semicircular, rectangular or polygonal, or it may be freely shaped. Likewise, it is not mandatory that the light surface 1 10 is planar. The light surface may, for example, have a curvature. If the scene location 120 is, for example, round or oval, the light surface 110 may be curved away from the scene location 120, so that it follows the boundary of the scene location. Also, the light surface 110 can be curved to the scene location 120, so that the emitted light can be emitted more diffusely.
  • the light area 110 when the scene location 120 is round, it is possible for the light area 110 to be in the shape of a cylinder segment, thus partially surrounding the scene location 120.
  • the light surface 110 it is also possible, for example, for the light surface 110 to be configured as a cylinder so that the light surface 110 surrounds the scene location 120 all around.
  • the light surface 110 surrounds the scene location 120 on all sides; for this purpose, the light surface 20 may comprise or be designed as a kind of "roof surface” and a "floor surface”, so that the scene location 120 then additionally can be illuminated from above and below.
  • the light surface 20 may comprise or be designed as a kind of "roof surface” and a "floor surface”, so that the scene location 120 then additionally can be illuminated from above and below.
  • only one of "roof surface” and "floor surface” is designed as part of the light surface 110, in the case of the floor surface it would be possible that static requirements do not allow it to be translucent, because some transparent materials do not necessary stability required of a floor area.
  • the light surface 110 may in some embodiments be designed as a transmission surface diffuser which illuminates the scene location 120, for example by diffuse refraction of light with diffusely scattered light.
  • the transmission surface diffuser may include a backlight.
  • the backlighting is then arranged, for example, on the back of the transmission surface diffuser so that light emanating from the backlighting impinges on the back of the transmission surface diffuser and exits on its front side facing the scene location 120 and illuminates the scene location 120.
  • the light surface 0 can be constructed mechanically as follows: If the light surface 110 is cylindrical, the light surface 110 comprises a cylindrical surface.
  • an analogous structure also applies to non-cylindrical areas of light.
  • the surface of light is flat, it would be more appropriate to speak of an inner plane, an installation plane, and an outer plane, but conceptually, the structure is the same.
  • such an embodiment may include an illuminated floor and / or a lighted ceiling, as well as a concealed entrance so that the scene location can be entered through the light surface.
  • a chimney effect can analogously also at the scene location 120, ie within the volume formed by the light surface 110, e.g. of the cylinder, come.
  • the light surface may be provided with an active ventilation element, for example a ventilator providing ventilation. Also, in an alternative embodiment, such an active ventilation element may provide ventilation together with the chimney effect.
  • the illumination system 100 may be provided with a reflector that reflects light toward the scene location 120.
  • this reflector can be arranged, which, in the case of light sources that radiate in all directions, throws the light back in the direction of the scene location that would otherwise be lost for illuminating the scene location.
  • a reflector may be formed, for example, by the aforementioned outer shell or plane.
  • the illumination system 100 may be configured in embodiments to enable camera recordings of the scene location
  • the light area may include one or more off-camera scenes. have, through each of which a camera can record the scene location 120.
  • Such camera openings may in embodiments be arranged distributed around the scene location, on the one hand, these openings may be arranged regularly, for example at the same angular distance from each other, but the camera openings may also be arranged irregularly with respect to angular position or height.
  • the aforementioned illumination of the illumination system may have different types of lighting.
  • the light sources comprise LEDs, thermal light bulbs such as light bulbs or laser include.
  • the luminous means it is possible for the luminous means to be activated separately, so that the luminous intensity and / or luminous color of the luminous means can be controlled in order to make it possible to form a time-variable background.
  • the light surface 110 in exemplary embodiments can enable dynamic or non-homogeneous illumination of the scene location, so that different illumination effects can emanate from different locations of the light surface and / or at different times from the light surface.
  • These lighting effects can differ in the illumination intensity and / or in the illumination color.
  • the area of the light area located behind the moving object, viewed from the camera is driven with a more intense illuminance, or that this area then has a different illumination color. Since the object can move, it is then possible in embodiments that this special lighting effect likewise changes spatially and temporally in accordance with the movement of the object, that is to say follows this moved object.
  • Such a lighting system in which the illumination intensity or color can change temporally and locally, can serve as a keying background. Keying is the removal of picture elements from the background understood, this is usually based on a key color, hence the term keying.
  • a well-known example is the so-called blue screen technique, which makes it possible to subsequently place objects or persons on a different background.
  • the illumination system 100 may include a controller that modulates the radiated light or to achieve synchronization between cameras and the radiated light. In the event that it is necessary in some embodiments for keying to use certain luminous intensities or specific illumination colors, then the color or intensity of the emitted light can be modulated and brought into synchronization with the corresponding cameras.
  • the modulation is such that the radiation of the light, or light of a particular color or intensity, is limited for an integration time of the cameras. That is, in embodiments, the modulation of the light is only for a period corresponding to the integration time of a camera.
  • This can be advantageous if, for example, a blue light color is required for keying, although such a light color is advantageous for the camera used, but not for people staying in the scene location. Since light of an unnatural light color can lead to unfamiliar contrast effects for humans, and such effects can then cause nausea in humans, it is more advantageous to illuminate the scene location mainly with a natural light color, and the color necessary for keying only for the Use fractions of a second in which the camera is "active", that is during the integration time of a camera.
  • the controller may be configured to control the lighting system 100 such that the keying background for each camera position from which the scene location is to be captured has a portion that is in color and / or brightness from the surrounding ones Distances, wherein the portion of a silhouette of a projection of the recorded object in the scene location 120 corresponds. That is, if, for example, an actor is in the scene, and that actor is to be released, only a portion corresponding to the actor's silhouette will be driven accordingly to modulate that portion in color and / or brightness.
  • the color of the keying background is not limited to blue.
  • the default color can be white, but also a counter color to the keying color can be used, for example, if the keying color is green, the counter color would be red. That is, in embodiments, the keying background has a default color, which may be white for each camera position, and undergoes modulation, with the modulation changing color and / or luminous intensity / brightness.
  • FIG. 2 shows the schematic structure of a recording system 200 that includes an illumination system 100.
  • the imaging system 200 includes a scene location 220 and a light area 210.
  • the light area in this embodiment is located around the scene location 220, but again, the light area is not as shown shown must be cylindrical.
  • the light surface could also be a planar surface here, or surround the scene location as a polyhedral arrangement, for example with a regular polygon as the basic structure.
  • an object 230 is also shown in the scene location 220, in the present case, the object 230 is symbolized by a human.
  • the light surface 210 has openings 240 through which camera recordings can take place.
  • the light surface 210 surrounds the scene location cylindrically, and that the light surface 210 is three-dimensional, in the sense that it has a volume, or has an inner surface facing the scene location, and a has further outer surface, which lies on the side facing away from the scene location.
  • the light sources may include lasers, incandescent lamps or LEDs.
  • it may be provided that not only the light surface 210 radiates light, but also that the bottom 216 of the recording system is provided with lighting means, so that the floor can illuminate the scene location.
  • a ceiling not shown in FIG. 2 may also be provided with lighting means to illuminate the scene location 220.
  • the light surface 210 is a cylindrical Order, which consists of an inner shell, an installation level and an outer shell 214.
  • the inner shell 212 faces the scene location 220 and is configured to serve as a diffuser, and has openings for camera lenses.
  • the outer shell 214 terminates the light surface toward the outside and may serve as a reflector in embodiments.
  • the reflector ⁇ tor helps to increase the efficiency of the lighting system.
  • an installation level that is configured as a support system to provide fixtures for fixtures, and can also accommodate camera systems, the lighting system, microphones, and speakers.
  • the mechanical structure of the entire lighting system may include an illuminated floor 216 and a lighted ceiling. So that the exception system, for example, by actors, can be entered, the mechanical structure has a hidden entrance. Furthermore, in order to keep the light surface within specified temperature ranges, a chimney effect is utilized which serves to ventilate the interior of the light surface. This chimney effect takes place within the light surface / wall.
  • the wall serves as a lighting system, in some embodiments also the floor and / or the ceiling.
  • the wall can be irradiated from the inside or outside, wherein LEDs, lasers or projection devices can be used as the light source.
  • the recording system has a camera system, the camera system can be synchronized with the light source. This allows the operation of the light surface by means of, for example, pulse width modulation PWM, so that the illumination can be switched on only during the integration time of the image sensors of the camera system. Thus, the dazzling effect for actors and staff can be reduced.
  • the lighting can be adjusted with a local and temporal resolution.
  • the spatial resolution can be given for example by the LED grid of the LED spotlights or by a pixel grid of a rear projection or projection system.
  • the possibility of controlling the light area allows temporally and spatially dynamically adjusted adjustment of color values and brightness. ness. By combining the illumination with neutral density filters as contact lenses, the dazzling effect can be further reduced.
  • the present illumination system can be used simultaneously for object lighting and keying.
  • a so-called clipping can be used instead of keying.
  • the object lighting is ideally kept in neutral white.
  • the brightness of the illumination system in the case where the light surface surrounds the scene location cyrically is referred to as a rotunda, is set so that a photograph leads to overexposure.
  • This overexposure can be used to release objects, such as object 230.
  • a mixed and dynamic keying can be used. This is a combination of Croma and Luma Keying.
  • the background is held primarily in white luminous to allow optimal scene lighting.
  • the background in front of certain objects can be partially adjusted in its brightness and color value so that an optimal keying can be achieved.
  • Different background colors and key-values can be set individually in terms of time and place, so that an optimal adaptation to the key behavior of the objects can take place.
  • clean plates backgrounds such as the lenses of the cameras can be located. These clean plates also allow the static determination of key-values.
  • the evaluation of the recordings can be used to dynamically adjust or adjust the key values.
  • cameras can be arranged in multifocal base systems, for example stereo, trifocal or quadfocal.
  • the multifocal base systems can be installed in different heights in the walls as well as in the ceiling and the floor. This allows the recording of the scene from different perspectives.
  • the multifocal base systems can also be equipped with active depth sensors to optimally adjust the camera parameters.
  • the depth sensors can perform so-called structured light or time of flight measurements.
  • Individual cameras of the camera system can be mounted as reference cameras or monitoring cameras in the walls, ceiling or floor. These then provide reference values for comparison with other cameras.
  • the height adjustment of the cameras can be made automatically and adaptively if necessary. This allows a variable adaptation of the recording perspective.
  • the cameras can also have different focal lengths to achieve different recording effects.
  • the cameras are synchronized with each other and with the illumination system to control an adjustment of light intensity and color value during the integration time of the cameras, as described above, in order to allow overall good keying, but on the other hand to reduce the glare effect.
  • the cameras can be arranged, for example, at the same angular distance from each other. But this is not absolutely necessary, the distribution of the cameras can not be periodic, any number of cameras that can be arranged arbitrarily in the cylinder of the light surface is possible.
  • the cameras can dynamically adjust the focus, aperture, and focal length as needed during recording to achieve optimal recording effects.
  • the determination of the camera parameters, such as aperture, focus and focal length, as well as the illumination parameters, such as intensity and color can both be done before the recording and adapted adaptively during the recording. In the latter case, a content-related adaptation of all mentioned parameters can be carried out based on the scene to be recorded. For example, the sharpness can be dynamically adapted to the actor to be recorded.
  • a content-based adaptation of the camera parameters can be carried out simultaneously for all multifocal camera-outlet systems on a common database, which increases the robustness of the system.
  • the parameters can first be determined separately from the individual multifocal base systems, and combined in a subsequent analysis step, which leads to a common parameter set, which is then adapted and used accordingly for all cameras.
  • the light surface may also include microphones. These can be used for a 360 ° microphone for spatial sound recording in the recording room. Furthermore, single microphones can be present, which enable a single microphone for the actors (radio link). Furthermore, loudspeakers rather, be arranged in the light surface 210 to allow sonication during performance.
  • FIG. 3 shows a flowchart of a method for operating a recording system, as has been shown and described, for example, in FIG.
  • a first step 310 an illumination system as described in connection with FIG. 1 or 2 is provided. This illumination system is used in step 320 to radiate light toward the scene location.
  • Step 320 may include one or more "substeps", but may also be performed independently of step 320.
  • properties of the scene may be determined, such as the location of particular objects, such as people or objects, within the scene location. This can be done by using cameras, or by querying a database in which the, intended or determined, position of example persons or objects is stored.
  • An object recognizer for example, can be used to locate an object in the scene, which can recognize objects in a scene recorded by a camera, even at runtime, and determine their position.
  • it may be determined what properties the lighting system should have.
  • the lighting system characteristics may relate to the intensity and / or color of the lighting as well as their local and / or temporal course. Likewise, these may relate to whether a keying background should be provided.
  • the illumination system determines illumination parameters which can be used to control the illumination system.
  • the illumination parameters can be determined based on the determined properties of the scene and / or properties of the illumination system.
  • the determined illumination parameters can enable dynamic or non-homogeneous illumination of the scene location, so that different illumination effects can emanate from the light surface at different positions of the light surface and / or at different times. These lighting effects may differ, for example, in the illumination intensity and / or color.
  • the illumination system may comprise a control device that modulates the emitted light or to achieve a synchronization between cameras and the emitted light.
  • the scene location can be illuminated with a natural light color and to use the color necessary for keying only for the fraction of a second in which the corresponding camera is "active."
  • the illumination parameters can be used to: dynamically adjust the focus, aperture and focal length of one or more cameras during recording to obtain optimum recording effects, determining the lighting parameters and determining the parameters for the aperture, focus and focal length of the camera (s) and the camera
  • the intensity and color of the illumination can be done both before the recording and adaptively during the recording
  • Adaptive adaptation of all mentioned parameters can be based on the scene to be recorded
  • a content-based adaptation of the camera parameters for in embodiments multifocal, K at the same time on a common database, which increases the robustness of the system.
  • multifocal camera systems in addition to the adaptation of the camera parameters mentioned above, it is also possible to switch over to a camera which is most suitable for the particular focus parameter.
  • step 328 the settings of the illumination system are made based on the determined illumination parameters. If necessary also made the settings of the cameras according to the determined illumination parameters.
  • step 330 a recording of the scene location is made by means of the cameras and with the lighting system set correspondingly.
  • aspects have been described in the context of a device, it will be understood that these aspects also constitute a description of the corresponding method, so that a block or a component of a device is also to be understood as a corresponding method step or as a feature of a method step. Similarly, aspects described in connection with or as a method step also represent a description of a corresponding block or detail or feature of a corresponding device.
  • Some or all of the method steps may be performed by a hardware device (or using a Hardware apparatus), such as a microprocessor, a programmable computer or an electronic circuit. In some embodiments, some or more of the most important method steps may be performed by such an apparatus.
  • embodiments of the invention may be implemented in hardware or in software.
  • the implementation may be performed using a digital storage medium, such as a floppy disk, a DVD, a Blu-ray Disc, a CD, a ROM, a PROM, an EPROM, an EEPROM or FLASH memory, a hard disk, or other magnetic disk or optical memory are stored on the electronically readable control signals that can cooperate with a programmable computer system or cooperate such that the respective method is performed. Therefore, the digital storage medium can be computer readable.
  • some embodiments according to the invention include a data carrier having electronically readable control signals capable of interacting with a programmable computer system such that one of the methods described herein is performed.
  • embodiments of the present invention may be implemented as a computer program product having a program code, wherein the program code is operable to perform one of the methods when the computer projec- program runs on a computer.
  • the program code can also be stored, for example, on a machine-readable carrier.
  • Other embodiments include the computer program for performing any of the methods described herein, wherein the computer program is stored on a machine-readable medium.
  • an embodiment of the method according to the invention is thus a computer program which has a program code for performing one of the methods described herein when the computer program runs on a computer.
  • a further embodiment of the inventive method is thus a data carrier (or a digital storage medium or a computer-readable medium) on which the computer program is recorded for carrying out one of the methods described herein.
  • the data carrier, the digital storage medium or the computer-readable medium are typically representational and / or non-transitory or non-transient.
  • a further embodiment of the method according to the invention is thus a data stream or a sequence of signals, which represent the computer program for performing one of the methods described herein.
  • the data stream or the sequence of signals may be configured, for example, to be transferred via a data communication connection, for example via the Internet.
  • Another embodiment includes a processing device, such as a computer or a programmable logic device, that is configured or adapted to perform one of the methods described herein.
  • a processing device such as a computer or a programmable logic device
  • Another embodiment includes a computer on which the computer program is installed to perform one of the methods described herein.
  • Another embodiment according to the invention comprises a device or system adapted to transmit a computer program for performing at least one of the methods described herein to a receiver. The transmission can be done for example electronically or optically.
  • the receiver may be, for example, a computer, a mobile device, a storage device or a similar device.
  • the device or system may include a file server for transmitting the computer program to the recipient.
  • a programmable logic device eg, a field programmable gate array, an FPGA
  • a field programmable gate array may cooperate with a microprocessor to perform any of the methods described herein.
  • the methods are performed by any hardware device. This may be a universal hardware such as a computer processor (CPU) or hardware specific to the process, such as an ASIC.
  • the devices described herein may be implemented, for example, using a hardware device, or using a computer, or using a combination of a hardware device and a computer.
  • the devices described herein, or any components of the devices described herein may be implemented at least in part in hardware and / or software (computer program).
  • the methods described herein may be implemented using a hardware device, or using a computer, or using a combination of a hardware device and a computer.
  • the methods described herein, or any components of the methods described herein may be performed at least in part by hardware and / or by software.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un système d'éclairage destiné à éclairer un lieu de scène, ledit système d'éclairage émettant de la lumière à partir d'une surface lumineuse, de manière à former un arrière-plan d'incrustation pour la prise de vue d'un lieu de scène.
EP18725244.0A 2017-05-22 2018-05-22 Système d'éclairage et système de prise de vue pour détection volumétrique Pending EP3631578A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17172260 2017-05-22
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US11496675B2 (en) * 2021-04-13 2022-11-08 Plantronics, Inc. Region of interest based adjustment of camera parameters in a teleconferencing environment
GB2620394A (en) * 2022-07-04 2024-01-10 Mo Sys Engineering Ltd Multi-format keying

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GB2321814B (en) * 1997-01-28 2001-02-14 British Broadcasting Corp Video imaging
GB2323733A (en) * 1997-03-25 1998-09-30 Orad Hi Tech Systems Limited Virtual studio projection system
US7468778B2 (en) * 2002-03-15 2008-12-23 British Broadcasting Corp Virtual studio system
US7418197B2 (en) * 2004-12-01 2008-08-26 Alpha Photography Inc. Back light screen for chroma-key photography
WO2006095779A1 (fr) * 2005-03-10 2006-09-14 Fuji Photo Film Co., Ltd. Systeme de photographie
RU2556417C2 (ru) * 2009-06-25 2015-07-10 Конинклейке Филипс Электроникс Н.В. Распознавание телодвижений с использованием цифровой цветовой рирпроекции
ES2538012B1 (es) * 2014-10-23 2016-03-30 Digital Centre, S.L. Fotomatón multicámara de efecto tridimensional y procedimiento de funcionamiento del mismo

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US20200073208A1 (en) 2020-03-05
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