WO2020088990A1

WO2020088990A1 - Management of light effects in a space

Info

Publication number: WO2020088990A1
Application number: PCT/EP2019/078723
Authority: WO
Inventors: Bartel Marinus Van De Sluis; Dzmitry Viktorovich Aliakseyeu; Mustafa Tolga EREN; Dirk Valentinus René ENGELEN
Original assignee: Signify Holding B.V.
Priority date: 2018-10-30
Filing date: 2019-10-22
Publication date: 2020-05-07

Abstract

The present invention relates to a method (200) in which a representation (125) of a space (10) is generated on the display (120) of a computing device (100). The representation shows a plurality of light sources (30-33) as well as light effects (40-41) generated by the light sources within the space. The representation is augmented with graphical links (50-52) showing the associations between the light effects and the light sources responsible for their generation, which in accordance with the method have been determined based on temporal variations in the light effects and unique light source identifiers of the light sources, which have been identified in one or more images of the space 10 taken with a camera (130, 140) of the computing device. Also disclosed is a computer program product for implementing such a method on a computing device, a computing device configured with such a computer program product and a lighting system including such a computing device.

Description

MANAGEMENT OF LIGHT EFFECTS IN A SPACE

FIELD OF THE INVENTION

The present invention relates to a method of associating one or more lighting effects generated in a space by a lighting system comprising a plurality of light sources adapted to generate said lighting effects under control of a controller with a computing device comprising a processor arrangement and a display and camera each communicatively coupled to the processor arrangement.

The present invention further relates to a computer program product for such a computing device comprising a computer readable storage medium having computer readable program instructions embodied therewith for, when executed on the processor arrangement, cause the processor arrangement to implement such a method.

The present invention yet further relates to a computing device comprising such a computer readable storage medium.

The present invention still further relates to a lighting system comprising a plurality of light sources and such a computing device.

BACKGROUND OF THE INVENTION

In certain lighting system implementations it may be desirable to adjust the lighting parameters of one or more light sources to achieve a desired lighting effect at one or more locations within a space, i.e. in a lighting environment. For example, it may be desirable to adjust the pan and/or tilt of a light source such as a light source of a“moving head” type spot lighting fixture. Also, for example, it may be desirable to adjust the direction of a LED-based light source with or without adjusting the pan and/or tilt of such LED-based light source. For example, a LED-based light source may include a plurality of LEDs that generate collimated light beams in different directions and/or from different locations.

Selective LEDs of the LED-based light source may be illuminated to direct one or more light beams at one or more locations in a lighting environment. Also, for example, a LED-based light source may additionally or alternatively include one or more redirectable optical elements each provided over one or more LEDs that may be selectively actuated to direct light output from the LED(s) to a desired location within the space. In certain control scenarios a user may wish to have the option to understand a spatial relationship associated with a lighting effect within the space such as the location of a lighting effect, the incoming direction of light creating the lighting effect, the intensity of the lighting effect, instead of or in addition to controlling the lighting source directly, such as for example directly adjusting pan/tilt and/or LED light source output. To this end, it may be desirable to graphically represent a lighting effect within a space in a manner that enables a user to understand the applied lighting effect.

US 2015/0084514 Al discloses a user interface (UI) for controlling a solid- state luminaire having an electronically adjustable light beam distribution. The UI may be configured to provide a user with the ability to control the light distribution of an associated solid-state luminaire in a given space. However, nowadays it is commonplace to generate a plurality of lighting effects in a space, for example for the purpose of creating an augmented reality of the space to an observer. In such a scenario, it is not straightforward to associate a particular lighting effect with one or more light sources responsible for its generation to facilitate adjustment or control of such a particular lighting effect.

SUMMARY OF THE INVENTION

The present invention seeks to provide a method of associating one or more lighting effects generated in a space by a lighting system comprising a plurality of light sources adapted to generate said lighting effects under control of a controller with a computing device such that a user of the computing device can understand the relation between lighting effects and corresponding light sources and/or control such lighting effects with the computing device based on the determined associations.

The present invention further seeks to provide a computer program product for such a computing device comprising a computer readable storage medium having computer readable program instructions embodied therewith for, when executed on the processor arrangement, cause the processor arrangement to implement such a method.

The present invention yet further seeks to provide a computing device comprising such a computer readable storage medium.

The present invention still further seeks to provide a lighting system comprising a plurality of light sources and such a computing device.

According to an aspect, there is provided a method of associating one or more lighting effects generated in a space by a lighting system comprising a plurality of light sources adapted to generate said lighting effects under control of a controller with a computing device comprising a processor arrangement and a display and camera each communicatively coupled to the processor arrangement, the method comprising capturing one or more images of at least part of said space with said camera, said one or more images including said one or more light effects and at least some of said light sources, said one or more light effects being located remote from said light sources in said image; evaluating said one or more images with the processor arrangement to detect the light effects in said one or more images and identify one or more temporal variations incorporated into each light effect by the light sources responsible for its generation; detect the light sources in said one or more images and identify a unique light source identifier for each light source; determine a location in said space for each of said detected light effects in said one or more images; and determine a location in said space for each of said detected light sources in said one or more images; determining the one or more light sources responsible for the generation of each light effect from the identified temporal variations and the identified unique light source identifiers and/or positional information; and generating a representation of said space on the display with the processor arrangement, said representation comprising the detected light effects and light sources in their respectively determined locations and one or more graphical links linking each detected light effect to the one or more detected light sources responsible for its generation.

With the method of the present invention, the user is offered understanding of and optionally control over the relation between the light effects in said space and the one or more light sources responsible for the generation of each light effect, as this is determined based on the temporal variations in the light effects and the light source identifiers generated by the lighting system, such that recognition of these identifiers facilitates the establishment of this relation. Consequently, a graphical representation of the space including the established associations between the light effects and the light sources responsible for the generation of these light effects can be generated on the display of the computing device, in which the user for example may manipulate the graphical links in order to control the light effects within the space corresponding to these links.

The temporal variation of a light effect and the unique light source identifier of the light source responsible for the generation of the light effect may be identical, in which case the computing device may establish the associations between the various light effects and light sources responsible for the generation of these light effects without association information provided by the lighting system. Alternatively, determining the one or more light sources responsible for the generation of each light effect from the identified temporal variations and the identified unique light source identifiers may comprise receiving a communication from the controller with the processor arrangement, said communication comprising information linking each temporal variation to a unique light source identifier; and associating each identified temporal variation with an identified unique light source identifier based on the received

communication. This allows for a more flexible arrangement in which the temporal variation of a light effect and the unique light source identifier of the light source responsible for the generation of the light effect may be different to each other. This for example is

advantageous in scenarios in which a light effect is generated by multiple light sources or in which a lighting device comprises multiple light sources that generate multiple light effects.

The method may further comprise evaluating a particular image of said one or more images with the processor arrangement; identifying at least one light source not present in said particular image that contributes to a detected light effect from the received communication; and displaying the particular image on the display including a representation of said at least one light source not present in the particular image. This information may assist a user of the computing device in that the user will learn from the displayed

representation of the at least one light source not present in the particular image that further images of different regions of the space may need to be taken in order to identify these one or more light sources such that a more complete graphical representation of the associations between the light effects and light sources responsible for their generation may be generated on the display of the computing device.

In an embodiment, the method further comprises receiving a light effect reconfiguration instruction with the display indicative of a user selecting a displayed graphical link in order to reconfigure a detected light effect within said space; and sending a light source control instruction to the controller with the processor arrangement in accordance with the received light effect reconfiguration instruction. In this manner, a user of the computing device on which the method according to this embodiment is operable can

(re)configure the light effects generated within the space simply by manipulating a graphical link associated with a particular light effect, thereby offering the user an intuitive and straightforward way of such (re)configurations.

For example, the light effect reconfiguration instruction may comprise a migration of the displayed graphical link by said user in order to change a light source at least partly responsible for the generation of said detected light effect while keeping the effect location substantially unchanged thereby controlling the directionality of the light effect at the effect location; and/or change the location of a detected light effect within said space without (substantially) changing the location of origin of the light effect.

The light source control instruction may be used to reconfigure a light effect in any suitable way. For example, the light source control instruction may control at least one of a luminous output direction, beam shape and/or width, luminous output intensity and luminous output spectral composition of a light source associated with the light effect reconfiguration instruction based on a target value of the at least one of the luminous output direction, beam shape and/or width, luminous output intensity and luminous output spectral composition of the light source as specified by said user in the light effect reconfiguration instruction.

The graphical link linking a light effect to the one or more light sources responsible for its generation as displayed on the display of the computing device may take any suitable shape. In a particularly straightforward embodiment, each graphical link

comprises a line connecting a light source to a light effect. Such a line may be a straight line in preferred embodiments.

In a further embodiment, the method further comprises sending an association detection instruction to the controller with the processor arrangement, said association detection instruction triggering the generation of the temporal variations with the respective light sources. This has the advantage that the temporal variations only are generated when the computing device seeks to establish the association of the detected light effects with the light source responsible for their respective generation, which for example may limit the visibility of such temporal variations to a short period of time, which may improve the perceived appearance of the light effects outside such a period of time, in particular where the temporal variations include a periodic disruption of the light effects, e.g. through flashing or the like.

The association detection instruction may further trigger each light source to generate its unique light source identifier in order to limit the visibility of the unique light source identifier, thereby potentially improving the perceived appearance of the light sources outside such a period of time.

In another embodiment, the processor arrangement comprises a location detection module, the method further comprising periodically detecting a location of the computing device with said location detection module; and repeating the association of the one or more lighting effects generated by said light sources upon a change in said detected location. This ensures that an accurate mapping (association) of the light effects onto the light sources responsible for their generation is maintained if the computing device changes location within the space, e.g. in case of a portable computing device in which a user carrying such a computing device may move around in or relative to the space.

According to another aspect, there is provided a computer program product for a computing device comprising a processor arrangement and a display and camera each communicatively coupled to the processor arrangement, the computer program product comprising a computer readable storage medium having computer readable program instructions embodied therewith for, when executed on the processor arrangement, cause the processor arrangement to implement the method of any of the embodiments described in this application. Such a computer program product may be used to enable existing computing devices to implement the method according to embodiments of the present invention.

According to yet another aspect, there is provided a computing device comprising a processor arrangement and a display and camera each communicatively coupled to the processor arrangement, the computing device further comprising a computer readable storage medium embodying the computer program product according to

embodiments described in this application. Such a computing device, e.g. a portable computing device such as a smart phone, tablet computer, laptop computer, personal digital assistant and so on, facilitates the generation of an augmented reality of the space on its display by implementing at least some of the embodiments of the method of the present invention, for example by enriching an image of the space in which at least some of the light effects and light sources are visible or have been visualized with the graphical links

associating the light effects with the light sources responsible for their generation.

According to still another aspect, there is provided a lighting system comprising a plurality of light sources communicatively coupled to a controller arranged to individually control said light sources, wherein the controller is adapted to control said light sources to generate one or more light effects within a space, and wherein each light source is adapted to incorporate a temporal variation in its luminous output from which at least part of the light effect is generated and the computing device according to any of the herein described embodiments. Such a lighting system may be (re)configured in a straightforward and intuitive manner by using the computing device as explained in more detail above.

The temporal variation in some embodiments may be one of a visible light or infrared light communication message or a temporal change in a luminous output

characteristic. In a particular embodiment, a lighting device comprising at least one of said light sources is further adapted to generate a unique light source identifier, optionally wherein said lighting device has a housing comprising at least one light source dedicated to the generation of said unique light source identifier. The latter option has the advantage that the unique light source identifier can be obtained by simply capturing an image (or sequence of images) of the lighting device in which the at least one light source dedicated to the generation of said unique light source identifier is visible. This may be more straightforward than capturing an image (or sequence of images) of the luminous output of such a lighting device, in particular where the at least one light source dedicated to the generation of said unique light source identifier produces a (near) 360° visibility of the unique light source identifier, e.g. around the body of the lighting device.

In the context of the present application, the term“LED” should be understood to include any electroluminescent diode or other type of carrier injection/junction-based system that is capable of generating radiation in response to an electric signal. Thus, the term LED includes, but is not limited to, various semiconductor-based structures that emit light in response to current, light emitting polymers, organic light emitting diodes (OLEDs), electroluminescent strips, and the like. In particular, the term LED refers to light emitting diodes of ah types (including semi-conductor and organic light emitting diodes) that may be configured to generate radiation in one or more of the infrared spectrum, ultraviolet spectrum, and various portions of the visible spectrum (generally including radiation wavelengths from approximately 400 nanometers to approximately 700 nanometers). Some examples of LEDs include, but are not limited to, various types of infrared LEDs, ultraviolet LEDs, red LEDs, blue LEDs, green LEDs, yellow LEDs, amber LEDs, orange LEDs, and white LEDs (discussed further below). It also should be appreciated that LEDs may be configured and/or controlled to generate radiation having various bandwidths (e.g., full widths at half maximum, or FWHM) for a given spectrum (e.g., narrow bandwidth, broad bandwidth), and a variety of dominant wavelengths within a given general color

categorization.

For example, one implementation of an LED configured to generate essentially white light (e.g., a white LED) may include a number of dies which respectively emit different spectra of electroluminescence that, in combination, mix to form essentially white light. In another implementation, a white light LED may be associated with a phosphor material that converts electroluminescence having a first spectrum to a different second spectrum. In one example of this implementation, electroluminescence having a relatively short wavelength and narrow bandwidth spectrum“pumps” the phosphor material, which in turn radiates longer wavelength radiation having a somewhat broader spectrum.

It should also be understood that the term LED does not limit the physical and/or electrical package type of an LED. For example, as discussed above, an LED may refer to a single light emitting device having multiple dies that are configured to respectively emit different spectra of radiation (e.g., that may or may not be individually controllable). Also, an LED may be associated with a phosphor that is considered as an integral part of the LED (e.g., some types of white LEDs). In general, the term LED may refer to packaged LEDs, non-packaged LEDs, surface mount LEDs, chip-on-board LEDs, T-package mount LEDs, radial package LEDs, power package LEDs, LEDs including some type of encasement and/or optical element (e.g., a diffusing lens), etc.

The term“light source” should be understood to refer to any one or more of a variety of radiation sources, including, but not limited to, LED-based sources (including one or more LEDs as defined above), incandescent sources (e.g., filament lamps, halogen lamps), fluorescent sources, phosphorescent sources, high-intensity discharge sources (e.g., sodium vapor, mercury vapor, and metal halide lamps), lasers, other types of electroluminescent sources, pyro-luminescent sources (e.g., flames), candle-luminescent sources (e.g., gas mantles, carbon arc radiation sources), photo-luminescent sources (e.g., gaseous discharge sources), cathode luminescent sources using electronic satiation, galvano-luminescent sources, crystallo-luminescent sources, kine-luminescent sources, thermo-luminescent sources, triboluminescent sources, sonoluminescent sources, radioluminescent sources, and luminescent polymers.

The term“light source” is intended to cover any type of radiation source of which one or more lighting parameters may be adjusted or reconfigured. For example, it may be desirable to adjust the pan and/or tilt of a lighting device such as a light source of a moving head type spot lighting fixture, which may be motorized in order to facilitate such adjustment. Also, for example, it may be desirable to adjust the direction of light output of a LED-based lighting device (with or without adjusting the pan and/or tilt of such a LED-based lighting device). For example, the LED-based lighting device may comprise a plurality of individually addressable LEDs that are aimed in different directions, such that by selecting different subsets of the LEDs within the lighting device the direction of the light output of such a lighting device may be adjusted without physically altering the pan and/or tilt of the lighting device. Other lighting parameters of such lighting devices that may be adjustable include but are not limited to beam width, beam shape, light output intensity, and so on. A given light source may be configured to generate electromagnetic radiation within the visible spectrum, outside the visible spectrum, or a combination of both. Hence, the terms“light” and“radiation” are used interchangeably herein. Additionally, a light source may include as an integral component one or more filters (e.g., color filters), lenses, or other optical components. Also, it should be understood that light sources may be configured for a variety of applications, including, but not limited to, indication, display, and/or illumination.

The term“spectrum” should be understood to refer to any one or more frequencies (or wavelengths) of radiation produced by one or more light sources.

Accordingly, the term“spectrum” refers to frequencies (or wavelengths) not only in the visible range, but also frequencies (or wavelengths) in the infrared, ultraviolet, and other areas of the overall electromagnetic spectrum. Also, a given spectrum may have a relatively narrow bandwidth (e.g., a FWHM having essentially few frequency or wavelength components) or a relatively wide bandwidth (several frequency or wavelength components having various relative strengths). It should also be appreciated that a given spectrum may be the result of a mixing of two or more other spectra (e.g., mixing radiation respectively emitted from multiple light sources).

For purposes of this disclosure, the term“color” is used interchangeably with the term“spectrum.” However, the term“color” generally is used to refer primarily to a property of radiation that is perceivable by an observer (although this usage is not intended to limit the scope of this term). Accordingly, the terms“different colors” implicitly refer to multiple spectra having different wavelength components and/or bandwidths. It also should be appreciated that the term“color” may be used in connection with both white and non white light.

The term“color temperature” generally is used herein in connection with white light, although this usage is not intended to limit the scope of this term. Color temperature essentially refers to a particular color content or shade (e.g., reddish, bluish) of white light. The color temperature of a given radiation sample conventionally is characterized according to the temperature in degrees Kelvin (K) of a black body radiator that radiates essentially the same spectrum as the radiation sample in question. Black body radiator color temperatures generally fall within a range of from approximately 700 K (typically considered the first visible to the human eye) to over 10,000 K; white light generally is perceived at color temperatures above 1500-2000 K.

The term“lighting fixture” is used herein to refer to an implementation or arrangement of one or more lighting units in a particular form factor, assembly, or package. The term“lighting unit” is used herein to refer to an apparatus including one or more light sources of same or different types. A given lighting unit may have any one of a variety of mounting arrangements for the light source(s), enclosure/housing arrangements and shapes, and/or electrical and mechanical connection configurations. Additionally, a given lighting unit optionally may be associated with (e.g., include, be coupled to and/or packaged together with) various other components (e.g., control circuitry) relating to the operation of the light source(s). An“LED-based lighting unit” refers to a lighting unit that includes one or more LED-based light sources as discussed above, alone or in combination with other non LED- based light sources. A“multi-channel” lighting unit refers to an LED-based or non LED- based lighting unit that includes at least two light sources configured to respectively generate different spectrums of radiation, wherein each different source spectrum may be referred to as a“channel” of the multi-channel lighting unit.

The term“controller” is used herein generally to describe various apparatus relating to the operation of one or more light sources. A controller can be implemented in numerous ways (e.g., such as with dedicated hardware) to perform various functions discussed herein. A“processor” is one example of a controller which employs one or more microprocessors that may be programmed using software (e.g., microcode) to perform various functions discussed herein. A controller may be implemented with or without employing a processor, and also may be implemented as a combination of dedicated hardware to perform some functions and a processor (e.g., one or more programmed microprocessors and associated circuitry) to perform other functions. Examples of controller components that may be employed in various embodiments of the present disclosure include, but are not limited to, conventional microprocessors, application specific integrated circuits (ASICs), and field-programmable gate arrays (FPGAs).

In various implementations, a processor or controller may be associated with one or more storage media (generically referred to herein as“memory,” e.g., volatile and non-volatile computer memory such as RAM, PROM, EPROM, and EEPROM, floppy disks, compact disks, optical disks, magnetic tape, etc.). In some implementations, the storage media may be encoded with one or more programs that, when executed on one or more processors and/or controllers, perform at least some of the functions discussed herein.

Various storage media may be fixed within a processor or controller or may be transportable, such that the one or more programs stored thereon can be loaded into a processor or controller so as to implement various aspects of the present invention discussed herein. The terms“program” or“computer program” are used herein in a generic sense to refer to any type of computer code (e.g., software or microcode) that can be employed to program one or more processors or controllers.

The term“addressable” is used herein to refer to a device (e.g., a light source in general, a lighting unit, a lighting device or fixture, a controller or processor associated with one or more light sources or lighting units, other non-lighting related devices, etc.) that is configured to receive information (e.g., data) intended for multiple devices, including itself, and to selectively respond to particular information intended for it. The term “addressable” often is used in connection with a networked environment (or a“network,” discussed further below), in which multiple devices are coupled together via some communications medium or media.

In one network implementation, one or more devices coupled to a network may serve as a controller for one or more other devices coupled to the network (e.g., in a master/slave relationship). In another implementation, a networked environment may include one or more dedicated controllers that are configured to control one or more of the devices coupled to the network. Generally, multiple devices coupled to the network each may have access to data that is present on the communications medium or media; however, a given device may be“addressable” in that it is configured to selectively exchange data with (i.e., receive data from and/or transmit data to) the network, based, for example, on one or more particular identifiers (e.g.,“addresses”) assigned to it.

The term“network” as used herein refers to any interconnection of two or more devices (including controllers or processors) that facilitates the transport of information (e.g. for device control, data storage, data exchange, etc.) between any two or more devices and/or among multiple devices coupled to the network. As should be readily appreciated, various implementations of networks suitable for interconnecting multiple devices may include any of a variety of network topologies and employ any of a variety of communication protocols. Additionally, in various networks according to the present disclosure, any one connection between two devices may represent a dedicated connection between the two systems, or alternatively a non-dedicated connection. In addition to carrying information intended for the two devices, such a non-dedicated connection may carry information not necessarily intended for either of the two devices (e.g., an open network connection).

Furthermore, it should be readily appreciated that various networks of devices as discussed herein may employ one or more wireless, wire/cable, and/or fiber optic links to facilitate information transport throughout the network. The term“user interface” as used herein refers to an interface between a human user or operator and one or more devices that enables communication between the user and the device(s). Examples of user interfaces that may be employed in various implementations of the present disclosure include, but are not limited to, switches, potentiometers, buttons, dials, sliders, a mouse, keyboard, keypad, various types of game controllers (e.g., joysticks), track balls, display screens, various types of graphical user interfaces (GUIs), touch screens, microphones and other types of sensors that may receive some form of human-generated stimulus and generate a signal in response thereto.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the invention are described in more detail and by way of non limiting examples with reference to the accompanying drawings, wherein:

FIG. 1 schematically depicts an example lighting scene in a space;

FIG. 2 schematically depicts the lighting scene of FIG. 1 displayed on a display of a computing device;

FIG. 3 schematically depicts a computing device according to an embodiment; FIG. 4 schematically depicts the computing device of FIG. 3 in block diagram form;

FIG. 5 depicts a flow chart of a method according to an embodiment;

FIG. 6 schematically depicts a lighting device comprising at least one light source of a lighting system according to an embodiment;

FIG. 7 schematically depicts another lighting device comprising at least one light source of a lighting system according to an embodiment;

FIG. 8 schematically depicts a rendered image on the display of the computing device with a method according to an embodiment;

FIG. 9 schematically depicts a method of locating a light source in a space;

FIG. 10 schematically depicts another rendered image on the display of the computing device with a method according to an embodiment;

FIG. 11 schematically depicts a user manipulation of a rendered image on the display of the computing device with a method according to an embodiment;

FIG. 12 schematically depicts a rendered image on the display of the computing device with a method according to an embodiment resulting from the user manipulation of FIG. 11; FIG. 13 schematically depicts another user manipulation of a rendered image on the display of the computing device with a method according to an embodiment; and

FIG. 14 schematically depicts a rendered image on the display of the computing device with a method according to an embodiment resulting from the user manipulation of FIG. 13.

DETAILED DESCRIPTION OF THE EMBODIMENTS

It should be understood that the Figures are merely schematic and are not drawn to scale. It should also be understood that the same reference numerals are used throughout the Figures to indicate the same or similar parts.

FIG. 1 schematically depicts a lighting scene in a space 10 in which one or more objects 20 such as a mannequin or the like are displayed and in which a plurality of light sources 30-33 are mounted, e.g. on a ceiling 12 or wall 11 of the space 10 to create a number of light effects 40, 41 within the space 10 including a light effect 40 generated with light sources 30 and 32 on the head of the mannequin. It should be understood that FIG. 1 depicts four light sources 30-33 and two light effects 40, 41 by way of non-limiting example only as the teachings of the present application may be applied to any suitable number of light sources and light effects within the space 10. Any light effect may be generated by one or more light sources, which in the example of FIG. 1 includes a light effect 40 generated by cooperating light sources 30 and 32 and a light effect 41 generated by light source 33. The light sources 30-33 are typically addressable by a controller 60, here shown as a central controller for the light sources 30-33 by way of non-limiting example only, as many other suitable controller configurations are equally feasible as will be readily understood by the skilled person. The light sources 30-33 may be configured to generate white light having any desirable colour temperature and/or coloured light having any suitable spectrum, i.e. spectral composition. Each of the light sources 30-33 for example may form or may form part of a lighting device such as a redirectable lighting device that may be motorized or manually redirectable, or may form an individually addressable lighting node of a lighting device comprising a plurality of individually addressable lighting nodes, in which the lighting nodes may be aimed in different directions for the generation of light effects in such different directions. Such a lighting device may comprise an array of such lighting nodes, e.g. a linear array or 2-D array. Other examples of suitable lighting devices comprising such light sources 30-33 will be immediately apparent to the skilled person. A user 1 may be present in the space 10 or outside the space 10 with a view of the space 10. The user 1 may operate a computing device 100 according to an embodiment of the present invention, which computing device 100 may be operable as an augmented reality (AR) device, in which an image 121 of the space 10 or part thereof is augmented with the relationships of the light sources 30-33 and the light effects 40, 41, i.e. the associations of the light effects 40, 41 with the one or more light sources 30-33 responsible for their generation and displayed on the display 120 of the computing device 100. Such an image 121 is schematically depicted in FIG. 2. The computing device 100 is shown in more detail in FIG. 3, in which the front 101 and the back 102 of the computing device 100 are shown next to each other.

The computing device 100 may be any suitable electronic device, such as a portable electronic device which has is front side a display 120 and a control button 105, and optionally a front facing camera 130. Examples of such portable electronic devices include but are not limited to smart phones, tablet computers, personal digital assistants, remote controllers and so on. The display 120 preferably is a touch screen that can act as a user interface of the computing device 100. Such a user interface is well-known per se and will not be further explained for the sake of brevity only. The computing device 100 further comprises a camera 140 in its back side 102, which may be used to capture one or more images of the space 10 whilst the user 1 can view the image(s) to be captured on the display 120. In other words, the display 120 may act as a viewer of the image(s) to be captured, with the user activating the capture of such images through a region of the display 120 or the control button 105 acting as a trigger. In some embodiments the display 120 may provide an image of the environment captured by the camera of the display device 30 and may overlay the image with one or more overlay items such as those described herein. For example, the image captured by the camera 140 of the computing device 100 may be overlaid with one or more representations of a lighting effect 40, 41, a light output direction, and/or a light source 30-33.

FIG. 4 schematically depicts the computing device 100 in block diagram form. The computing device 100 typically comprises a processor arrangement 110 for controlling the operation of the computing device 100 such as in response to user commands provided through the one or more user interfaces of the computing device 100, e.g. the control button 105 and/or the display 120 acting as a touch screen. The processor arrangement 110 for example may be arranged to control the camera 130 and/or the camera 140 for the capturing of one or more images of the space 10 as well as the display 120 for the generation of an image 121 of (part of) the space 10 thereon. The processor arrangement 110 may take any suitable form. By way of non-limiting example, the processor arrangement 110 may comprise one or more central processor units (CPUs) 111, one or more graphical processor units (GPUs) 112, a wired or wireless network communication module or radio 113 and/or a global positioning by satellite (GPS) sensor 114, which may be deploy any suitable global positioning method, such as GPS and/or GLONASS for example. The network

communication module 113 and/or the GPS sensor 114 may be controlled by the one or more CPUs 111 of the processor arrangement 110. Such processor arrangements are well-known per se and will therefore not be described in further detail for the sake of brevity only. The skilled person should understand that any suitable processor arrangement 110 may be present in the computing device 100.

As previously mentioned, the image 121 of the space 10 or part thereof to be displayed on the display 120 of the computing device 100 is to be augmented with the associations of the light effects 40, 41 and the light sources 30-33 responsible for their generation, such that the user 1 can manipulate these displayed associations to control the reconfiguration of the light effects 40, 41 within the space 10 in an intuitive and

straightforward manner. This therefore requires the computing device 100 to establish these associations. Embodiments of the present invention are concerned with the establishment of such associations by the implementation of the method 200 on the processor arrangement 110 of the computing device 100, which may comprise a computer program stored in data storage medium 150, such as a memory or solid state disk, storing computer readable program instructions of the computer program that when executed on the processor arrangement 110, cause the processor arrangement to implement the method 200, a flowchart of which is depicted in FIG. 5.

In accordance with the method 200, each of the light sources 30-33 generates a unique light source identifier and a temporal variation in its light output used to identify a particular light effect generated by the light output, as will be explained in more detail below. For example, lighting devices 30 and 32 each will generate a unique light source identifier from which the lighting devices 30 and 32 may be identified, and a temporal variation from which the light effect 40 may be identified. The unique light source identifiers and the temporal variations are optically detectable, i.e. can be captured in images taken with the cameras 130 and/or 140 of the computing device 100. Consequently, by taking images of the lighting devices 30-33 and light effects 40, 41 in the space 10 and identifying the unique light source identifiers and the temporal variations in the captured images, the processor arrangement 110 of the computing device 100 can associate each specific light effect with one or more specific light sources responsible for the generation of that light effect, as will be explained in further detail below.

The method 200 starts in operation 201, which may be the user 1 initiating the method 200 on the computing device 100, e.g. by engaging with a user interface such as the touch screen display 120 of the computing device 100. The method 200 subsequently proceeds to operation 203 in which the computing device 100 communicates with the lighting system to which the light sources 30-33 belong, e.g. through its controller 60 over a network such as a wireless network in which case the controller 60 may comprise or may be communicatively coupled to a network communication module (not shown) that can communicate with the network communication module 113 in the processor arrangement 110 of the computing device 100.

This communication may involve the computing device 100 informing the controller 60 of the lighting system that the computing device 100 is seeking to associate the light effects 40, 41 in the space 10 with the respective light sources 30-33 responsible for their generation, which may trigger the controller 60 to address the relevant lighting devices 30-33 in order to trigger these lighting devices to start generating the unique light source identifiers and/or the temporal variations in the light effects 40, 41 that act as identifiers of these light effects such that the computing device 100 can identify these identifiers in the one or more images to be captured of (parts of) the space 10. The controller 60 may cause the addressed light sources 30-33 to generate the unique light source identifiers and/or the temporal variations for a defined period of time or until receiving a further communication from the computing device 100 informing the lighting system that the association process has been completed, such that the controller 60 in response may address the relevant light sources 30-33 in order for these light sources to terminate the generation of the unique light source identifiers and/or the temporal variations in the light effects 40, 41 acting as identifiers thereof.

This scenario assumes that the light sources 30-33 generate the unique light source identifiers and/or the temporal variations in the light effects 40, 41 temporarily.

Alternatively, the light sources 30-33 may generate the unique light source identifiers and/or the temporal variations in these light effects continuously, e.g. in case of visible or IR codes included in the light effects, in which case the communication from the computing device 100 to the controller 60 with the intention to activate the temporary generation of the unique light source identifiers and/or the generation of the temporal variations in the light effects 40, 41 by the respective light sources 30-33 does not have to trigger the addressing of the light sources 30-33 by the controller 60 in order to activate a separate mode of operation of the light sources in which they generate the unique light source identifiers and/or these temporal variations.

In response to the communication provided to the lighting system by the computing device 100, the lighting system may provide the computing device 100 with a response communication conveying identification information to the processor arrangement 110 of the computing device 100. Such identification information typically identifies the unique light source identifiers of the respective light sources 30-33 and the temporal variations in the light effects 40, 41 generated by the respective light sources 30-33, such that the processor arrangement can spatially link a particular light effect 40, 41 to one or more particular light sources 30-33 when identifying these identifiers and temporal variations in the one or more images of the space 10.

In the context of the present application, a temporal variation in a light effect may be generated by a light source 30-33 by modulation of its luminous output, for example using a communication protocol such as Visible Light Communication (VLC) or an infrared (IR)-based protocol, which may also include the unique light source identifier. Alternatively, the temporal variation may be characterized by one or more properties of this luminous output, such as light effect shape, intensity, colour, position, dynamics and so on, in which case the light effect may be identified from these one or more properties that are unique to the light effect. Such temporal variations are optically unique to a particular light effect, and as such may be considered a unique light effect identifier.

Alternatively, the temporal variation may be temporally unique, that is, the computing device 100 through the controller 60 may control the light sources 30-33 to sequentially generate identifiers of different light effects, e.g. by briefly switching selected light sources off or on, to briefly cause selected light sources to emit light having a particular spectrum, and so on, which allows for the detection of a light effect 40, 41 associated with a particular, i.e. selected, light source 30-33. Alternatively, different light sources 30-33 may transmit different time series of light pulses with changing properties, such that the computing device 100 may identify a particular light effect through capture of a sequence of images with its camera 130 and/or 140 over a time interval during which such a time series can be detected and subsequent evaluation of the sequence of images.

Where a lighting device 30-33 comprises a plurality of pixelated light elements, e.g. a plurality of discrete and individually addressable LEDs, such a light source may create multiple discrete light effects, each of such light effects has its own temporal variation. In such a case, each temporal variation originating from the same light source include a prefix identifying the light source. Such a prefix may serve as the unique light source identifier. Alternatively, such discrete light effects originating from the same light source may share the same temporal variation, such that upon selection of one of the light effects by a user, the other light effects in the view of the camera 130 or 140 of the computing device 100 would also be highlighted on its display 120.

In the context of the present application, a unique light source identifier may be generated by each of the light sources 30-33 by modulation of its luminous output in an analogous manner as described above for the temporal variation. Typically, the temporal variation would be identified at the light effect, e.g. by light reflected off an object 20 onto which the light effect is projected, whereas the unique light source identifier would be identified proximal to the housing of a lighting device comprising such a light source. For example, as schematically depicted in FIG. 6, the unique light source identifier of the depicted lighting device comprising the light source 30 may be extracted from its luminous output 310 as captured in one or more images with the camera 130 or 140 of the computing device 100 using its processor arrangement 110.

Alternatively, as schematically depicted in FIG. 7 and in accordance with another aspect of the present invention, any lighting device for the lighting system

comprising one or more of its light sources 30-33, e.g. light source 30 by way of non-limiting example, may comprise has at least one further light source 320 on or in its housing 315 acting as an indicator that is visible when directly observing the lighting device. Preferably, the at least one further light source 320 is visible from a large variety of viewing angles and more preferably, from a 360° view of the lighting device. To this end, the lighting device including the light source 30 may comprise a plurality of such further light sources 320 that are spatially separated from each other and each extend along its housing in parallel with its optical axis 330. Such light sources 320 may take the form of light strips for example.

Alternatively or additionally, the lighting device including the light source 30 comprises a ring-shaped further light source 320 around its housing, e.g. in a plane perpendicular to said optical axis 330 that facilitates the desired 360° view of the indicator indicating the unique light source identifier. The one or more light sources 320 may permanently transmit the unique light source identifier or, as previously explained, only transmit the unique light source identifier in a dedicated mode of operation triggered by the computing device 100.

The generation of the unique light source identifier by the one or more further light sources 320 may be achieved by modulation of the luminous output of the one or more further light sources 320 to emit a unique VLC or IR identifier, a unique spectrum that can be detected by the computing device 100, and so on.

In operation 205 of the method 200, the user 1 of the computing device 100 captures one or more images of the space 10 with the camera 130 and/or 140 of the computing device. Where a single image can cover the entire space 10, the acquisition of a single image in operation 205 may suffice; otherwise, multiple images of different parts of the space 10 may be acquired that can be combined, e.g. stitched or the like, in order to form a composite image of the space 10 to be displayed on the display 120 of the computing device 100. Moreover, in case of temporally changing identifiers, the computing device 100 may capture a sequence of images of (a single part of) the space 10 such that the temporal changes to the identifier, e.g. a temporal variation or a unique lighting effect identifier, can be identified from such a sequence by evaluation with the processor arrangement 110.

At this point, it is noted that embodiments of the present invention are not limited to unique light source identifiers that are identified solely by capture of their emission by the light sources 30-33. It is for instance equally feasible for the computing device 100 to at least partially identify a light source associated with the generation of a light effect 40, 41 based on a detected position and orientation of a light source 30-33 in the space 10. This for example may be used in case of a light effect such as light effect 40 being generated by multiple light sources, here light sources 30 and 32. The computing device 100 may have received association information from the lighting system in which the association of a plurality of light sources with a particular light effect has been conveyed to the computing system 100. This may be leveraged by the processor arrangement 110 by the displaying of a captured image of part of the space 10 on the display 120 as schematically depicted in FIG. 8. In this example, the processor arrangement 110 has received association information from the lighting system in which a particular light effect has been associated with, i.e. generated by, light sources 31-33. This association information is displayed as an overlay 123 of the image 121, which further shows overlays 122 on the light source 32 identified by the processor arrangement 110 in the image 121. The already identified light sources (here 31 and 32) may be represented in the overlay 123 using a first representation, e.g. colour, whereas the not yet identified light sources (here 33) may be represented in the overlay 123 using a second, different representation, e.g. colour. In this manner, the user 1 can immediately tell that further images need to be captured of the space 10 in order to identify all light sources responsible for the generation of the light effect of interest. The processor arrangement 110 may generate a further overlay 124 on the displayed image 121 that indicates a general direction in which an already identified light source (here 31) responsible for the generation of the light effect of interest that is not in the current view or image 121 can be found.

Next, the method 200 performed on the processor arrangement 110 proceeds to operation 207 in which a captured image is evaluated to identify the temporal variations in the one or more light effects 40, 41 in that image (or sequence of images) as previously explained, and to operation 209 in which the captured image (or sequence of images) is evaluated to identify the one or more unique light source identifiers in that image as previously explained. Although these operations 207 and 209 are shown as distinct operations, it will be understood that they may performed as a single combined operation, in parallel or in any suitable order. It further should be understood that operations 207 and 209 may be performed after the capture of each individual image or sequence of images, or after capture of all images of the space 10. It is noted that in the context of the present application, the capture of an image optionally may include the storage of the image in the data storage medium 150.

In operation 211 of the method 200, the processor arrangement 110 of the computing device 100 determines the location of the identified light effects in the space 10, e.g. the determination of the beginning and end locations of each light effect. This for example may be achieved by analysis of the captured image(s) using available light effect recognition algorithms that detect the shape of a light effect 40, 41, after which the processor arrangement may determine a centre or anchor point for such a light effect.

In operation 213 of the method 200, the processor arrangement 110 of the computing device 100 determines the location of the identified light sources in the space 10. This for example may be achieved by analysis of the captured image(s) using available light source recognition algorithms that detect the shape of a light source 30-33, after which the processor arrangement may determine a centre or anchor point for such a light source. For example, in the case of a motorized lighting device comprising such a light source, the centre of its recognized light emission window may be used as the start location of such a lighting device, whereas in the case of a pixelated lighting device a central point of a plurality of active pixels (i.e. light sources) may be chosen as such a start location. Such start locations may be used as anchor points as will be explained in more detail below.

Operations 211 and 213 may be performed simultaneously in case both the light effect(s) and the light source(s) responsible for its generation are visible within the same image. However, where this is not the case, these operations may be executed independently by the processor arrangement 110 in any order. In such a scenario, the movement of the camera 130 or 140 with which the images to be evaluated need to be tracked such that a spatial relationship between a light source and a light effect can be established. This for example may be achieved by the processor arrangement 110 mapping a transformation between the respective internal coordinate systems in which the various relevant images have been taken.

FIG. 9 illustrates the positioning of a computing device 100, an adjustable lighting device comprising at least one light source 30, and an object 20 within a coordinate system of a real environment or space 10 having a reference point at 70. A light effect representation 40 is also illustrated. The coordinate system is illustrated as an example of one of many coordinate systems that may be utilized. In some embodiments the coordinate system may include GPS coordinates and/or local coordinates. The location and/or viewing angle(s) as generally indicated by arrow 105 of the computing device 100 may be determined within the coordinate system as follows. For example, the location of the computing device 100 within the coordinate system may be provided via configuration by a user (e.g. entering of the coordinates by a user) or utilizing one or more location methods. Also, for example, the viewing angle(s) of the computing device 100 may be determined via an orientation sensor such as, for example, a digital compass (e.g., a magnetometer, gyrocompass, and/or hall effect sensors) a gyroscope, an accelerometer, and/or a three-axis electronic compass.

The sensor(s) of the computing device 100 may include a GPS sensor or other sensor which is capable of determining the location of the computing device 100 within the environment, an electronic compass or other sensor that is capable of determining the direction in which the camera 130, 140 of the computing device 100 is directed and/or a zoom controller of the camera or other sensor that may detect the angle of view of the camera 130,140.

In operation 215 of the method 200, the processor arrangement of the computing device 100 determines the associations between the various light effects 40, 41 and light sources 30-33 in the one or more captured images, for instance by matching the identified light effects and light sources to the association information provided by the lighting system. Such association information may not need to be provided in case the temporal variation of a light effect is identical to the unique light source identifier of a light source responsible for its generation, in which case the matching of identical identifiers as identified in the one or more captured images may suffice.

The processor arrangement 110 subsequently leverages the established links or associations between the light effects 40, 41 and light sources 30-33 to generate a representation of the space 10 on the display 120 in operation 217. Such a representation for example may be a schematic representation of the space 10 and/or a 3D model of the space 10. Preferably, the one or more captured images are used to generate this representation of the space 10 on the display 120 of the computing device 100. The representation typically comprises the detected light effects 40, 41 and light sources 30-33 in their respectively determined locations, with each represented light effect and light source optionally being augmented with an identifier, e.g. on overlay such as overlay 122 for example. An example of such an augmented representation 125 is schematically depicted in FIG. 10.

In addition, the representation comprises one or more graphical links 50-52 linking each detected light effect 40, 41 to the one or more detected light sources responsible for its generation, which graphical links represent the links determined in operation 215. Hence, the user 1 is provided with an AR representation of the space 10 on the display 120 of the computing device 100 in which each light effect 40, 41 is visually linked to the one or more light sources 30-33 responsible for its generation by a graphical link 50-52 connecting the light effect to the one or more light sources responsible for its generation. For example, in FIG. 10 light effect 40 is linked to light sources 30 and 32 by graphical links 50 and 51 respectively, whereas light effect 41 is linked to light source 33 by graphical link 52. Such a graphical link may be a (straight) line that is connected between the previously mentioned anchor or centre points of the light effect and light source(s) respectively. Such a line may have any suitable style or representation, e.g. a continuous line, a dashed line, and so on.

In a preferred embodiment, the display 120 may act as a user interface that allows the user to manipulate the displayed graphical links 50-52 in the generated AR representation 125 displayed on the display 120 in order to allow the user to reconfigure the generation of the light effects 40, 41 by the lighting system. For example, as schematically depicted in FIG. 11, the user 1 may drag the connection of a graphical link (here graphical link 50), i.e. an end of the graphical link attached to a light source, from one displayed representation of a light source (here light source 30) to another (here light source 31), as schematically depicted in FIG. 12. This may be interpreted by the processing arrangement 110 as a light effect reconfiguration instruction in which the user wishes to change one or more light sources responsible for the generation of the associated light effect, as indicated by the aforementioned user-controlled migration of the graphical link. The processing arrangement 110 typically communicates the received light effect reconfiguration instruction as a light source control instruction to the controller 60 of the lighting system including the affected light sources (here light sources 30 and 31), after which the controller 60 addresses the affected light sources to reconfigure the generation of the associated light effect in accordance with the received light effect reconfiguration instruction. In case of a pixelated light source capable of creating multiple light effects such as light spots, the light effect reconfiguration instruction

In another example, as schematically depicted in FIG. 13, the user 1 may drag the connection of a graphical link (here graphical link 52), i.e. an end of the graphical link attached to a light effect, to cause a change in location of the light effect within the displayed representation 125 of the space 10, as schematically depicted in FIG. 14. This may be interpreted by the processing arrangement 110 as a light effect reconfiguration instruction in which the user wishes to change the location of a light effect within the space 10, as indicated by the aforementioned user-controlled migration of the graphical link. The processing arrangement 110 typically communicates the received light effect reconfiguration instruction as a light source control instruction to the controller 60 of the lighting system including the affected light effect (here light effect 41) and/or light sources (here light source 33) responsible for the generation of the affected light effect, after which the controller 60 addresses the affected light sources to reconfigure the generation of the associated light effect in accordance with the received light effect reconfiguration instruction. In case of a pixelated light source capable of creating multiple light effects such as light spots, the light effect reconfiguration instruction may further include a user-specified option of moving only a single light effect or simultaneously moving all light effects generated by such a pixelated light source.

It is noted that such a light effect reconfiguration instruction is not necessarily limited to changing a light source responsible for the generation of a particular light effect or to changing the location of a particular light effect in the space 10. Such a light effect reconfiguration instruction for example may include one or more of a reconfiguration of a luminous output direction, beam shape and/or width, luminous output intensity and luminous output spectral composition of a lighting device associated with the light effect

reconfiguration instruction based on a target value of the at least one of the luminous output direction, beam shape and/or width, luminous output intensity and luminous output spectral composition of the light source as specified by the user in the light effect reconfiguration instruction. The user may provide such a target value in any suitable manner, for instance through a dialog window displayed on the display 120 in which the user can specify the target value, through a selection menu having a list of target values that may be made visible by the user interacting with the display 120, e.g. tapping a displayed representation of a light source or light effect, by scaling a displayed perimeter of light effect using thumb and index finger for instance, and so on. Many more examples of a user interface that can be used by a user to provide such a target value will be immediately apparent to the skilled person, and it should be understood that the present invention is not limited to a particular user interface for this purpose; any suitable user interface may be used.

As will be understood by the skilled person, the determined associations between the various light effects 40-41 and the light sources 30-33 responsible for their generation is only valid for the location in the space 10 from which the computing device 100 determined these associations. In other words, as soon as a user 1 moves through the space 10 with the computing device 100, the representation 125 on the display 120 of the computing device 100 no longer gives a reliable representation of the associations the various light effects 40-41 and the light sources 30-33 responsible for their generation as the user now observes the light effects and light sources from a different viewing angle. To address this issue, the method 200 as executed by the processor arrangement 110 may further check in operation 219 if the location of the computing device 100 relative to the space 10, i.e. within the space 10 or outside the space 10, has changed. This for example may be achieved by periodically determining the location of the computing device 100, e.g. with its position location sensors such as a GPS sensor 114, and repeating the process of associating the various light effects 40-41 and the light sources 30-33 responsible for their generation by returning to operation 205 in case of detecting such a change in the location of the computing device 100. The detected change may be compared against a defined threshold, such that the association process is only repeated if the change in the location of the computing device 100 exceeds a defined step size (i.e. the defined threshold). If no such change in the location of the computing device 100 is detected in operation 219, the method 200 proceeds to operation 221 in which it is checked if the method 200 may be terminated, e.g. by a user terminating the application running on the computing device 100. If this is not the case, the method 200 reverts back to operation 219; otherwise, the method 200 terminates in 223.

The above described embodiments of the method 200 executed by the processor arrangement 110 may be realized by computer readable program instructions embodied on a computer readable storage medium having, when executed on a processor arrangement 110 of a portable computing device 100, cause the processor arrangement 110 to implement any embodiment of the method 200. Any suitable computer readable storage medium may be used for this purpose, such as for example an optically readable medium such as a CD, DVD or Blu-Ray disc, a magnetically readable medium such as a hard disk, an electronic data storage device such as a memory stick or the like, and so on. The computer readable storage medium may be a medium that is accessible over a network such as the Internet, such that the computer readable program instructions may be accessed over the network. For example, the computer readable storage medium may be a network-attached storage device, a storage area network, cloud storage or the like. The computer readable storage medium may be an Internet-accessible service from which the computer readable program instructions may be obtained. In an embodiment, the computing device 100 is adapted to retrieve the computer readable program instructions from such a computer readable storage medium and to create a new computer readable storage medium by storing the retrieved computer readable program instructions in a data storage arrangement of the computing device 100, e.g. in a memory device 150 or the like forming part of the computing device 100.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps other than those listed in a claim. The word "a” or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements. In the device claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims

CLAIMS:

1. A method (200) of associating one or more light effects (40, 41) generated in a space (10) by a lighting system comprising a plurality of light sources (30-33) adapted to generate said light effects under control of a controller (60) with a computing device (100) comprising a processor arrangement (110) and a display (120) and camera (130, 140) each communicatively coupled to the processor arrangement, the method comprising:

capturing (205) one or more images (121) of at least part of said space with said camera, said one or more images including said one or more light effects and at least some of said light sources, said one or more light effects being located remote from said light sources in said image;

evaluating said one or more images with the processor arrangement to:

detect (207) the light effects in said one or more images and identify one or more temporal variations incorporated into each light effect by the light sources responsible for its generation;

detect (209) the light sources in said one or more images and identify a unique light source identifier for each light source;

determine (211) a location in said space for each of said detected light effects in said one or more images; and

determine (213) a location in said space for each of said detected light sources in said one or more images;

determining (215) the one or more light sources responsible for the generation of each light effect from the identified temporal variations and the identified unique light source identifiers and/or positional information; and

generating (217) a representation (125) of said space on the display with the processor arrangement, said representation comprising the detected light effects and light sources in their respectively determined locations and one or more graphical links (50-52) linking each detected light effect to the one or more detected light sources responsible for its generation.

2. The method (200) of claim 1, wherein determining the one or more light sources (30-33) responsible for the generation of each light effect (40, 41) from the identified temporal variations and the identified unique light source identifiers comprises:

receiving (203) a communication from the controller (60) with the processor arrangement (110), said communication comprising information linking each temporal variation to a unique light source identifier; and

associating each identified temporal variation with an identified unique light source identifier based on the received communication.

3. The method (200) of claim 2, further comprising:

evaluating a particular image (121) of said one or more images with the processor arrangement (110);

identifying at least one light source (30-33) not present in said particular image that contributes to a detected light effect of the one or more light effects (40, 41) from the received communication; and

displaying the particular image on the display including a representation (123) of said at least one light source not present in the particular image.

4. The method (200) of any of claims 1-3, further comprising:

receiving a light effect reconfiguration instruction with the display (120) indicative of a user selecting a displayed graphical link (50-52) in order to reconfigure a detected light effect (40, 41) within said space (10); and

sending a light source control instruction to the controller (60) with the processor arrangement (110) in accordance with the received light effect reconfiguration instruction.

5. The method (200) of claim 4, wherein the light effect reconfiguration instruction comprises a migration of the displayed graphical link (50-52) by said user in order to:

change a light source (30-33) at least partly responsible for the generation of said detected light effect (40, 41); and/or

change the location of a detected light effect within said space (10).

6. The method (200) of claim 4 or 5, wherein the light source control instruction controls at least one of a luminous output direction, beam shape and/or width, luminous output intensity and luminous output spectral composition of a light source (30-33) associated with the light effect reconfiguration instruction based on a target value of the at least one of the luminous output direction, beam shape and/or width, luminous output intensity and luminous output spectral composition of the light source as specified by said user in the light effect reconfiguration instruction.

7. The method (200) of any of claims 1-6, wherein each graphical link (50-52) comprises a line connecting a light source (30-33) to a light effect (40, 41).

8. The method (200) of any of claims 1-7, further comprising sending an association detection instruction to the controller (60) with the processor arrangement (110), said association detection instruction triggering the generation of the temporal variations with the respective light sources (30-33).

9. The method (200) of claim 8, wherein said association detection instruction further triggers each light source (30-33) to generate its unique light source identifier.

10. The method (200) of any of claims 1-9, wherein the processor arrangement (110) comprises a location detection module (114), the method further comprising:

periodically detecting (219) a location of the computing device (100) with said location detection module; and

repeating the association of the one or more lighting effects (40, 41) generated by said light sources (30-33) upon a change in said detected location.

11. A computer program product for a computing device (100) comprising a processor arrangement (110) and a display (120) and camera (130, 140) each

communicatively coupled to the processor arrangement, the computer program product comprising a computer readable storage medium having computer readable program instructions embodied therewith for, when executed on the processor arrangement, cause the processor arrangement to implement the method (200) of any of claims 1-10.

12. A computing device (100) comprising a processor arrangement (110) and a display (120) and camera (130, 140) each communicatively coupled to the processor arrangement, the computing device further comprising a computer readable storage medium embodying the computer program product of claim 11.

13. A lighting system comprising:

a plurality of light sources (30-33) communicatively coupled to a controller (60) arranged to individually control said light sources, wherein the controller is adapted to control said light sources to generate one or more light effects (40, 41) within a space (10), and wherein each light source is adapted to incorporate a temporal variation in its luminous output (310) from which at least part of the light effect is generated; and

the computing device (100) of claim 12.

14. The lighting system of claim 13, wherein the temporal variation is one of a visible light or infrared light communication message, a luminous output characteristic or a temporal change in the luminous output.

15. The lighting system of claim 13 or 14, wherein a lighting device comprising at least one of said light sources (30-33) is further adapted to generate a unique light source identifier, optionally wherein said lighting device has a housing (315) comprising at least one further light source (320) dedicated to the generation of said unique light source identifier.