CN112995628B - Projection control method and device, storage medium and projection equipment - Google Patents
Projection control method and device, storage medium and projection equipment Download PDFInfo
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- CN112995628B CN112995628B CN202110242961.3A CN202110242961A CN112995628B CN 112995628 B CN112995628 B CN 112995628B CN 202110242961 A CN202110242961 A CN 202110242961A CN 112995628 B CN112995628 B CN 112995628B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
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Abstract
The disclosure provides a projection control method, a projection control device, a storage medium and a projection device, wherein a projection image is acquired and whether the projection image meets a preset immersive projection condition is identified; when the projection image meets the immersive projection condition, reducing the brightness of the projection light source; the projection light source after reducing the luminance projects the projection image, make the luminance of the background area of the projection image projected reduce correspondingly, therefore, from the visual effect of users, the background area of the projection image is not nearly luminous, combine with the surrounding environment together, reach the purpose of hiding the background area outside the main area of projection image, have realized the projection of the immersion type.
Description
Technical Field
The disclosure relates to the technical field of projection, in particular to a projection control method, a projection control device, a storage medium and projection equipment.
Background
A projection device, also called a projector or a projector, is a device that can project image content onto a projection area, such as a curtain or a wall. However, when the projection device projects the image content to the projection area, a relatively obvious frame appears, which mainly shows that the color difference between the background area of the projected image content and the surrounding environment of the projection area is obvious.
Disclosure of Invention
The disclosure provides a projection control method and device, a storage medium and a projection device, which can enable the projection device to realize immersive projection, thereby improving the projection effect of the projection device.
In a first aspect, the present disclosure provides a projection control method applied to a projection device, the projection control method including:
acquiring a projection image, and identifying whether the projection image meets a preset immersive projection condition, wherein the projection image comprises a main body area and a background area;
reducing the brightness of a projection light source when the projected image satisfies the immersive projection condition;
and projecting the projection image by the projection light source with reduced brightness to hide a background area outside the main body area.
In a second aspect, the present disclosure further provides a projection control apparatus applied to a projection device, the projection control apparatus including:
the image acquisition module is used for acquiring a projected image and identifying whether the projected image meets a preset immersive projection condition, wherein the projected image comprises a main body area and a background area;
the brightness control module is used for reducing the brightness of a projection light source when the projection image meets the immersive projection condition;
and the image projection module is used for projecting the projection image through the projection light source with reduced brightness so as to hide a background area outside the main body area.
In a third aspect, the present disclosure also provides a storage medium having a computer program stored thereon, which when loaded by a projection apparatus, performs the projection control method as provided by the present disclosure.
In a fourth aspect, the present disclosure also provides a projection apparatus, including a processor and a memory, where the memory stores a computer program, and the processor executes the projection control method provided by the present disclosure by loading the computer program.
In the disclosure, by acquiring a projection image and identifying whether the projection image meets a preset immersive projection condition, the projection image includes a main body region and a background region; when the projection image meets the immersive projection condition, reducing the brightness of the projection light source; the projection light source after reducing the luminance projects the projection image, make the luminance of the background area of the projection image that throws out reduce correspondingly, from this, see from user's visual effect, the background area of projection image is nearly luminous, and the surrounding environment fuses together, reaches the purpose of hiding the projection image background area, makes the projected visual effect improve, brings immersive ground visual experience for the user.
Drawings
In order to more clearly illustrate the technical solutions of the present disclosure, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without inventive efforts.
Fig. 1 is a schematic flow chart of a projection control method provided by the present disclosure.
Fig. 2 is an exemplary diagram of an audio visualization image in the present disclosure.
Fig. 3 is an exemplary view of a decoration image in the present disclosure.
Fig. 4 is a schematic diagram of internal optics of a projection device in accordance with the present disclosure.
Fig. 5 is an exemplary diagram of a projection device projecting a projected image in a conventional framed projection mode in accordance with the present disclosure.
Fig. 6 is an exemplary diagram of a projection device projecting a projected image in accordance with an immersive projection mode provided by the present disclosure in the present disclosure.
Fig. 7 is a diagram showing an example of assignment of enabled periods of time per unit time for each color light source in the present disclosure.
Fig. 8 is another schematic flow chart diagram of a projection control method provided by the present disclosure.
Fig. 9 is a schematic structural diagram of a projection control device provided by the present disclosure.
Fig. 10 is a schematic structural diagram of a projection apparatus provided by the present disclosure.
Detailed Description
It should be noted that the terms "first", "second", and "third", etc. in this disclosure are used for distinguishing different objects, and are not used for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or modules listed, but rather, some embodiments may include other steps or modules not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The present disclosure provides a projection control method, a projection control apparatus, a storage medium, a projection device, and a protective cover, wherein an execution main body of the projection control method may be the projection control apparatus provided in the present disclosure, or the projection device integrated with the projection control apparatus, wherein the projection control apparatus may be implemented in a hardware or software manner. The projection device may be a home theater type, a portable business type, an educational conference type, or the like, which is classified according to the application environment.
Referring to fig. 1, fig. 1 is a schematic flow chart of a projection control method provided by the present disclosure, where the projection control method is implemented in a projection device, as shown in fig. 1, the flow of the projection control method provided by the present disclosure may be as follows:
at 110, a projected image is acquired and identified if the projected image satisfies a preset immersive projection condition, the projected image including a subject region and a background region.
It should be noted that, in this embodiment, the source of the projection image is not limited, and the projection image may be input into the projection device by an external device or may be generated by the projection device itself. Subject recognition is performed on the projection image, and the projection image can be divided into a subject region and a background region. As the name implies, a main body area is an area where an image is to express a main body of content, and a background area is an area for setoff the main body outside the main body area.
For example, after an external device (e.g., a smart phone, a tablet computer, etc.) establishes a communication connection with a projection device, a display interface of the projection device needs to be projected by the projection device, and then the projection device acquires an image of the display interface from the external device as a projected image;
for another example, the projection device itself has application running capability, and when the projection device runs a certain audio playing application, the audio visual image generated when the audio playing application plays music is used as a projection image, as shown in fig. 2, fig. 2 shows an audio visual image, subject recognition is performed on the audio visual image, the wavy pattern for interpreting the music content therein is divided into a subject region, and the black region for serving as a setoff is divided into a background region.
For another example, when the projection area is a blank wall area, the projection device may obtain a decoration image (e.g., an artistic work image such as a painting, a sculpture, or other types of images playing a decoration role) as a projection image, and project the projection image onto the blank wall for decoration, as shown in fig. 3, fig. 3 shows a decoration image, and performs body recognition on the decoration image, so as to divide the pot-shaped ceramic artwork into a body area, and divide a black area for serving as a support into a background area.
The audio visualization refers to a popular propagation mode combining audio and video, which takes the vision as a core, music as a carrier, the public as an appeal object, and various new media technologies and other propagation media to interpret music content through pictures and images. It can provide a visual presentation technique for understanding, analyzing and comparing expressive force of the form of musical art works and internal and external structures. The audio visualization can realize the color combination change, the pattern change and the like in the modes of building projection, scene reproduction and the like by means of computer programming and projection technology, and more like the expansion of the expression forms of public artistic forms such as music firecracker fireworks, music fountains and the like, the former is the cooperation of virtual fireworks and music rhythm, and the latter can control the change of water flow and water column by utilizing different timbres, amplitudes and beats.
In this embodiment, after acquiring a projection image that needs to be projected, the projection device further identifies whether the projection image meets a preset immersive projection condition. It should be noted that the configuration of the immersion type projection condition is not particularly limited and may be configured by those skilled in the art according to actual needs.
For example, the configuration of the immersive projection conditions may be performed according to the use of the projection image.
For example, immersive projection conditions may be configured including:
the projected image includes an audio visual image and/or a decoration image, and the background area of the projected image is a black background.
After the identification of whether the projection image meets the immersive projection condition is completed, whether immersive projection is performed is determined according to the identification result, wherein if the projection image meets the immersive projection condition, the projection device performs immersive projection, and otherwise, projection is performed according to a traditional projection mode.
At 120, the brightness of the projection light source is reduced when the projected image satisfies the immersive projection conditions.
As described above, when the acquired projection image satisfies the immersive projection condition, the projection apparatus determines that immersive projection is necessary, and at this time, reduces the luminance of the projection light source. The degree of brightness reduction of the projection light source is not particularly limited, and may be configured by those skilled in the art according to actual needs, for example, the degree of brightness reduction may be configured to be any fixed value between 45% and 55% of the original brightness, and a corresponding brightness determination strategy may also be configured to dynamically determine the degree of brightness reduction.
Referring to fig. 4, the optical components of the projection apparatus mainly include an imaging device, a projection light source and a lens, and the projection apparatus basically operates in a manner that light is irradiated to the imaging device through the projection light source to generate an image, and then the image is projected to a projection area through the lens.
For example, taking a projection device as a digital light processing projection device as an example, an imaging device of the digital light processing projection device is a digital micro-mirror chip, and the digital micro-mirror chip includes a matrix composed of micro-mirrors, and each micro-mirror corresponds to a pixel in a projection image. These micro-mirrors are capable of changing angle rapidly under the control of a digital driving signal, and upon receiving a corresponding signal, the micro-mirrors are tilted by 10 °, thereby changing the reflection direction of incident light. The micromirror in projection state is shown as "on" and tilted +10 ° with the digital signal; if the micromirror is in a non-projecting state, it is shown as "off" and tilted by-10. Meanwhile, the incident light reflected out in the 'on' state projects an image to a projection area through the lens; while incident light reflected on the micromirror in the "off" state is absorbed by the light absorber.
As described above, assuming that the configured immersive projection condition is that the projected image is used for audio visualization or decoration, and the background area of the projected image is a black background, if the projected image satisfies the immersive projection condition, it indicates that the background area of the projected image is a black background, and accordingly, the micro-lenses corresponding to the background area of the projected image in the digital micro-mirror chip are automatically switched to the off state, so that the micro-lenses do not reflect light.
In this embodiment, by reducing the brightness of the projection light source, the brightness of the background area of the projection image is reduced accordingly.
In other embodiments, the configured immersive projection conditions are assumed to include:
the projected image includes an audio visual image and/or a decorative image.
At this time, the projection device not only reduces the brightness of the projection light source, but also identifies whether the projection image background area is a black background, if not, the micro-mirror corresponding to the projection image background area in the digital micro-mirror chip is actively switched to a closed state, so that the micro-mirrors do not reflect light.
At 130, the projected image is projected by the reduced-brightness projection light source to hide the background region outside the projected image main region.
As described above, the projection image is projected by the projection light source with reduced brightness, and the brightness of the background area of the projected projection image is reduced by that amount, whereby the background area of the projection image is almost not lighted in view of the visual effect of the user, and is integrated with the surrounding environment.
For example, referring to fig. 5 and fig. 6 in comparison, as shown in fig. 5, the projection image is an audio visual image, and when the projection image is projected to the projection area in the conventional projection manner, the projection image includes a background area illustrating gray; as shown in fig. 6, when the projection image is projected by the immersive projection method provided by the present disclosure, the background area of the projection image is nearly non-luminous and blends with the surrounding environment.
As can be seen from the above, in the present embodiment, the projection image is acquired, and whether the projection image meets the preset immersive projection condition is identified; when the projection image meets the immersive projection condition, reducing the brightness of the projection light source; the projection light source after reducing the luminance projects the projection image, make the luminance of the background area of the projection image projected reduce correspondingly, therefore, from the visual effect of users, the background area of the projection image is not nearly luminous, combine with the surrounding environment together, reach the purpose of hiding the background area outside the main area of projection image, have realized the projection of the immersion type.
Optionally, in an embodiment, the projection light source includes a red light source, a green light source, a first blue light source, and a second blue light source.
In this embodiment, the projection light source is composed of a plurality of light sources, which are respectively a red light source, a green light source and two blue light sources, where one of the blue light sources is denoted as a first blue light source, and the other blue light source is denoted as a second blue light source.
For example, the projection light source includes a red LED light source, a green LED light source, a first blue LED light source, and a second blue LED light source.
In this embodiment, the red light source, the green light source, the first blue light source, and the second blue light source are enabled in a time-sharing manner, and a full-color image is restored by using the principle of persistence of vision of human eyes.
In other embodiments, the projection light source at least includes a red light source, a green light source and a blue light source as constraints, and the projection light source can be configured by those skilled in the art according to actual needs, for example, the projection light source can be configured to be composed of two red light sources, a green light source and a blue light source, and the projection light source can be configured to be composed of one red light source, one green light source, one blue light source and a white light source.
Optionally, in an embodiment, reducing the brightness of the projection light source comprises:
the driving current supplied to the red light source, the green light source, the first blue light source and the second blue light source is reduced to reduce the brightness of the projection light source.
As described above, the projection light source is composed of the red light source, the green light source, the first blue light source and the second blue light source, and the brightness of the single light source is related to the driving current thereof, so that the driving current of each single light source can be reduced, the brightness thereof is correspondingly reduced, and the overall brightness of the projection light source is correspondingly reduced.
In this embodiment, the projection apparatus reduces the driving current supplied to the red light source, the green light source, the first blue light source, and the second blue light source.
It should be noted that, to ensure the projection effect, the projection apparatus reduces the drive currents supplied to the red light source, the green light source, the first blue light source, and the second blue light source by the same reduction degree.
For example, assuming that it is desired to reduce the brightness of the projection light source to 45-55% of the original brightness, the projection device correspondingly reduces the driving currents supplied to the red light source, the green light source, the first blue light source, and the second blue light source to 45-55% of the respective original driving currents.
Optionally, in an embodiment, reducing the brightness of the projection light source comprises:
and reducing the enabling time length of the green light source in unit time, and correspondingly increasing the enabling time length of at least one of the red light source, the first blue light source and the second blue light source so as to reduce the brightness of the projection light source.
As described above, the projection light source is composed of the red light source, the green light source, the first blue light source, and the second blue light source, and the light sources of the respective colors are enabled in a time-sharing manner, that is, the light sources of the respective colors do not light up at the same time, so that the enabling duration of the light source with a greater contribution to the brightness can be adjusted, thereby achieving the purpose of adjusting the brightness of the projection light source.
In this embodiment, the projection device decreases the enabled duration of the green light source in a unit time (which may be defined by a person skilled in the art according to actual needs), and correspondingly increases the enabled duration of at least one of the red light source, the first blue light source and the second blue light source, i.e. the decreased enabled duration of the green light source may be allocated to at least one other light source.
For example, please refer to fig. 7,T to indicate a unit time, T1 indicates an enabling duration of a red light source, T2 indicates an enabling duration of a first blue light source 1, T3 indicates an enabling duration of a green light source, and T4 indicates an enabling duration of a second blue light source, the projection apparatus may decrease the enabling duration of the green light source from T3 to T3' within the unit time T, and allocate the decreased duration to the second blue light source, so that the enabling duration of the second blue light source becomes T4' = T4+ T3-T3' accordingly.
It should be noted that the degree of reduction of the green light source enabled period depends on the degree of reduction of the desired brightness of the projection light source, and the greater the desired brightness reduction, the greater the degree of reduction of the corresponding green light source enabled period.
Optionally, in an embodiment, reducing the brightness of the projection light source includes:
acquiring current ambient brightness;
and reducing the brightness of the projection light source to the projection light source brightness corresponding to the acquired environment brightness according to the acquired environment brightness, the preset environment brightness and the corresponding relation of the projection light source brightness under the immersive projection condition.
It can be understood that the brightness of the projection screen presentation is closely related to the ambient brightness of the projection area, and the greater the ambient brightness, the greater the influence on the brightness of the projection screen presentation. As described above, since the present disclosure is directed to hiding the background region other than the projected image main region, the correspondence relationship between the environmental brightness associated with different background colors and the brightness of the projection light source under the immersive projection condition is established in advance in the present embodiment.
For example, taking a black background as an example, the projection device projects a pure black projection image, and under each environment brightness, the brightness of the projection light source that makes the pure black projection image invisible is determined respectively, so as to obtain the brightness of the projection light source corresponding to each environment brightness, thereby establishing a corresponding relationship between the environment brightness associated with the black background and the brightness of the projection light source under the immersive projection condition. That is, for an ambient brightness, if the projection device projects a pure black projection image according to its corresponding projection light source brightness determined by the correspondence between the ambient brightness and the projection light source brightness under the immersive projection condition, the pure black projection image will not be visible. Similarly, the corresponding relation between the environment brightness related to other background colors and the brightness of the projection light source under the immersion type projection condition can be established
Accordingly, in this embodiment, when the brightness of the projection light source is reduced, the projection light source first obtains the current ambient brightness, for example, the projection device is configured with a brightness sensor for sensing the ambient brightness, and accordingly, the projection device obtains the current ambient brightness through the configured brightness sensor. In addition, the projection apparatus acquires a background color of a background area of the projection image.
After the current environment brightness and the background color are obtained, the projection equipment further reduces the brightness of the projection light source to the projection light source brightness corresponding to the obtained environment brightness according to the obtained environment brightness, the corresponding relation between the environment brightness associated with the background color and the projection light source brightness under the immersive projection condition.
Optionally, in an embodiment, the projection apparatus further includes an electrochromic component, and the projection control method further includes:
determining a target area used for shielding the projection light corresponding to the background area in the electrochromic assembly;
and switching the target area into a coloring state, so that the target area shields the projection light corresponding to the background area.
In order to further improve the immersive projection of the projection device, an electrochromic component is also configured in the projection device in this embodiment. As the name implies, electrochromic elements are capable of assuming different colors depending on the different voltages supplied.
The electrochromic assembly comprises a plurality of electrochromic units, or the electrochromic assembly consists of a plurality of electrochromic units. It should be noted that, as to the number of electrochromic elements included in the electrochromic device, this embodiment is not particularly limited, and may be set by a person skilled in the art according to actual needs. For example, the resolution of the electrochromic device may be the same as that of the projection device, for example, when the resolution of the projection device is 800 × 600, the electrochromic device correspondingly includes 480000 electrochromic cells, that is, the electrochromic cells correspond to the pixels of the projection device one to one.
It should be noted that the electrochromic refers to a phenomenon that the optical properties (such as reflectivity, light transmittance, absorption rate, etc.) of the material undergo a stable and reversible color/transparency change under the action of an applied electric field. Materials with electrochromic properties may be referred to as electrochromic materials. The electrochromic element in this embodiment is made of electrochromic material.
The electrochromic unit can comprise two conducting layers which are arranged in a stacked mode, and a color changing layer, an electrolyte layer and an ion storage layer which are arranged between the two conducting layers.
Among them, the conductive layer may be a transparent conductive layer, which has excellent conductivity and good optical transmittance. The transparent conductive layer may be made of Indium Tin Oxide (ITO), tin oxide (SnO 2), antimony Tin Oxide (ATO), and the like.
The color-changing layer is a core layer of the electrochromic unit and is also a generation layer of color-changing reaction. The material of the color-changing layer may be classified into an inorganic electrochromic material and an organic electrochromic material according to types. The inorganic electrochromic material may be tungsten trioxide (WO 3), nickel oxide (NiO), or the like. The organic electrochromic material mainly comprises polythiophene and derivatives thereof, viologen, tetrathiafulvalene, metal phthalocyanine compounds and the like.
The electrolyte layer is composed of a special conductive material such as a liquid electrolyte material containing a solution of lithium perchlorate, sodium perchlorate, or the like, or may be a solid electrolyte material.
The ion storage layer plays a role in storing charges in the electrochromic unit, namely corresponding counter ions are stored when the material of the electrochromic layer undergoes an oxidation-reduction reaction, so that the charge balance of the whole electrochromic unit is ensured.
When a certain voltage is applied to the two transparent conductive layers of the electrochromic unit, the material of the color-changing layer of the electrochromic unit undergoes an oxidation-reduction reaction under the action of the voltage, so that a color/transparency change occurs.
For example, when no voltage (or 0V) is applied to the two transparent conductive layers of the electrochromic cell, the electrochromic cell will be in a transparent state, when the voltage applied between the two transparent conductive layers is changed from 0V to 1.2V, the electrochromic cell will be in a black color, when the voltage applied between the two transparent conductive layers is changed from 1.2V to-1.2V, the electrochromic cell will be changed from black color to transparent, and so on.
In this embodiment, the electrochromic component may be disposed in front of the optical path of the lens, or disposed behind the optical path of the lens, and specifically, may be set by a person skilled in the art according to actual needs.
The projection equipment realizes immersive projection by reducing the brightness of the projection light source, and also shields projection light corresponding to a background area of a projection image through the electrochromic component by utilizing the color-changing characteristic of the electrochromic component.
The projection device firstly determines a target area, which is used for shielding the projection light corresponding to the background area, in the electrochromic component, and switches the target area to a coloring state, for example, the electrochromic units in the target area are directly colored to a black state, so that the projection light corresponding to the background area of the projection image is shielded by the electrochromic units colored to the black state, and the immersive projection of the projection device is further improved.
Optionally, in an embodiment, after the projection of the projection image by the projection light source with reduced brightness, the method further includes:
and when the new projection image is identified not to meet the immersive projection condition, restoring the brightness of the projection light source to the brightness before reduction.
It should be noted that in the present embodiment, the projection image is recognized in real time, and the projection mode of the projection apparatus is dynamically switched according to the projection image.
When the projection equipment recognizes that the new projection image does not meet the immersive projection condition, the brightness of the projection light source is restored to the brightness before reduction, and therefore projection is carried out according to the traditional framed projection mode.
Referring to fig. 8, fig. 8 is another schematic flow chart of a projection control method provided by the present disclosure, as shown in fig. 8, the projection control method may include:
in 210, the projection device acquires a projection image, and identifies whether the projection image satisfies a preset immersive projection condition, the projection image including a main body region and a background region.
In 220, the projection device reduces the driving current supplied to the red light source, the green light source, the first blue light source, and the second blue light source, which constitute the projection light source, to reduce the luminance of the projection light source when the projection image satisfies the immersive projection condition.
In 230, the projection device projects the projected image by the reduced-brightness projection light source to hide a background region outside the projected image main body region.
It should be noted that, for the specific content, please refer to the related description in the above embodiments, and the description is omitted here.
In an embodiment, the present disclosure also provides a projection control apparatus. Referring to fig. 9, fig. 9 is a schematic structural diagram of a projection control apparatus 300 according to the present disclosure. The projection control apparatus 300 is applied to a projection device, and includes an image obtaining module 310, a brightness control module 320, and an image projection module 330, as follows:
the image acquisition module 310 is used for acquiring a projection image and identifying whether the projection image meets a preset immersive projection condition, wherein the projection image comprises a main body area and a background area;
a brightness control module 320 for reducing the brightness of the projection light source when the projection image satisfies the immersive projection condition;
and an image projection module 330 for projecting the projection image by the projection light source with reduced brightness to hide a background region outside the main region of the projection image.
Optionally, in an embodiment, the projection light source includes a red light source, a green light source, a first blue light source, and a second blue light source.
Optionally, in an embodiment, when the brightness of the projection light source is reduced, the brightness control module 320 is configured to:
the driving current supplied to the red light source, the green light source, the first blue light source and the second blue light source is reduced to reduce the brightness of the projection light source.
Optionally, in an embodiment, when the brightness of the projection light source is reduced, the brightness control module 320 is configured to:
and reducing the enabling time length of the green light source in unit time, and correspondingly increasing the enabling time length of at least one of the red light source, the first blue light source and the second blue light source so as to reduce the brightness of the projection light source.
Optionally, in an embodiment, when the brightness of the projection light source is reduced, the brightness control module 320 is configured to:
acquiring current ambient brightness;
and reducing the brightness of the projection light source to the projection light source brightness corresponding to the acquired environment brightness according to the acquired environment brightness, the preset environment brightness and the corresponding relation of the projection light source brightness under the immersive projection condition.
Optionally, in an embodiment, the projection device further includes an electrochromic component, and the present disclosure provides that the projection control apparatus further includes a shielding module, configured to:
determining a target area for shielding the projection light corresponding to the background area in the electrochromic assembly;
and switching the target area into a coloring state, so that the target area shields the projection light corresponding to the background area.
Optionally, in an embodiment, after the image projection module 330 projects the projection image through the projection light source with reduced brightness, the brightness control module 320 is further configured to:
when the image acquisition module 310 recognizes that the new projection image does not satisfy the immersive projection condition, the brightness of the projection light source is restored to the brightness before the reduction.
In specific implementation, the modules may be implemented as independent entities, or may be combined arbitrarily and implemented as the same or a plurality of entities, and the specific implementation of the modules may refer to the foregoing embodiment of the projection control method, which is not described herein again.
In an embodiment, the present disclosure further provides a projection apparatus, referring to fig. 10, the projection apparatus 400 includes a processor 410, a memory 420, and a projection light source 430.
The processor 410 is a control center of the projection device 400, connects various parts of the entire projection device using various interfaces and lines, performs various functions of the projection device 400 and processes data by running or loading a computer program stored in the memory 420 and calling data stored in the memory 420.
The memory 420 may be used to store software programs and modules, and the processor 410 executes various functional applications and data processing by operating the computer programs and modules stored in the memory 420. The memory 420 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, a computer program required for at least one function (such as a sound playing function, a communication playing function, etc.), and the like; the storage data area may store data created according to use of the projection apparatus, and the like. Further, the memory 420 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, memory 420 may also include a memory controller to provide processor 410 access to memory 420.
It should be noted that, in addition to the projection light source 430, the projection apparatus further includes an imaging device (not shown), a lens (not shown), and the like, and the basic operation principle is that light is irradiated to the imaging device through the projection light source, so as to generate an image, and then the image is projected to the projection area through the lens.
In the present disclosure, the processor 410 in the projection device 400 loads instructions corresponding to one or more processes of the computer program into the memory 420, and the processor 410 executes the computer program stored in the memory 420, so as to implement various functions, as follows:
acquiring a projection image, and identifying whether the projection image meets a preset immersive projection condition, wherein the projection image comprises a main body area and a background area;
when the projected image meets the immersive projection condition, reducing the brightness of the projection light source 430;
the projection image is projected by the projection light source 430 with the reduced brightness to hide the background area outside the main area of the projection image.
Optionally, in an embodiment, the projection light source 430 includes a red light source, a green light source, a first blue light source, and a second blue light source.
Optionally, in an embodiment, when the brightness of the projection light source 430 is reduced, the processor 410 is configured to perform:
the driving current supplied to the red light source, the green light source, the first blue light source, and the second blue light source is reduced to reduce the brightness of the projection light source 430.
Optionally, in an embodiment, when reducing the brightness of the projection light source 430, the processor 410 is configured to perform:
the enabled time period of the green light source in a unit time is decreased, and the enabled time period of the red light source, the first blue light source and/or the second blue light source is correspondingly increased to decrease the brightness of the projection light source 430.
Optionally, in an embodiment, when reducing the brightness of the projection light source 430, the processor 410 is configured to perform:
acquiring current ambient brightness;
and reducing the brightness of the projection light source 430 to the projection light source brightness corresponding to the acquired environment brightness according to the acquired environment brightness and the corresponding relationship between the preset environment brightness and the projection light source brightness under the immersive projection condition.
Optionally, in an embodiment, the projection device further includes an electrochromic component, and the processor 410 is further configured to perform:
determining a target area of the electrochromic assembly covering the background area;
and switching the target area to a coloring state, so that the target area shields the projection light corresponding to the background area.
Optionally, in an embodiment, after the projection image is projected by the reduced-brightness projection light source 430, the processor 410 is further configured to perform:
and when the new projection image is recognized not to meet the immersive projection condition, the brightness of the projection light source 430 is restored to the brightness before reduction.
It should be noted that the projection apparatus 400 provided in the present disclosure and the projection control method in the foregoing embodiments belong to the same concept, and the specific implementation process thereof is described in detail in the foregoing related embodiments, and is not described herein again.
The present disclosure also provides a computer-readable storage medium storing a computer program that, when run on a projection apparatus, causes the projection apparatus to perform the projection control method in any of the above embodiments, such as:
acquiring a projection image, and identifying whether the projection image meets a preset immersive projection condition, wherein the projection image comprises a main body area and a background area;
when the projected image meets the immersive projection condition, reducing the brightness of the projection light source 430;
the projection image is projected by the projection light source 430 with the reduced brightness to hide the background area outside the main area of the projection image.
In the present disclosure, the storage medium may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like.
The projection control method, the projection control device, the storage medium and the projection apparatus provided by the present disclosure are described in detail above, and specific examples are applied herein to illustrate the principles and embodiments of the present disclosure, and the descriptions of the above embodiments are only used to help understand the method and the core ideas of the present disclosure; meanwhile, for those skilled in the art, according to the idea of the present disclosure, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present description should not be construed as a limitation to the present disclosure.
Claims (9)
1. A projection control method, characterized by comprising:
acquiring a projection image needing to be projected by a projection device, and identifying whether the projection image meets a preset immersive projection condition, wherein the projection image comprises a main body area and a background area, and the immersive projection condition comprises the following steps: the projection image comprises an audio visual image and/or a decorative image, and the background area of the projection image is a black background;
when the projection image meets the immersive projection condition, acquiring the current environment brightness of the projection area;
reducing the brightness of the projection light source to the projection light source brightness corresponding to the environment brightness according to the environment brightness and the corresponding relation between the preset environment brightness and the projection light source brightness in the immersion type projection state so as to carry out the immersion type projection;
in the immersion projection state, the projection image is projected by a projection light source with reduced brightness so as to hide a background region other than the main body region.
2. The projection control method of claim 1, wherein the projection light source includes a red light source, a green light source, a first blue light source, and a second blue light source.
3. The projection control method of claim 2, wherein the reducing the brightness of the projection light source comprises:
reducing drive currents supplied to the red light source, the green light source, the first blue light source, and the second blue light source to reduce a brightness of the projection light source.
4. The projection control method of claim 2, wherein the reducing the brightness of the projection light source comprises:
and reducing the enabling time length of the green light source in unit time, and correspondingly increasing the enabling time length of at least one of the red light source, the first blue light source and the second blue light source so as to reduce the brightness of the projection light source.
5. The projection control method of any of claims 1-4, wherein the projection device includes an electrochromic component, the projection control method further comprising:
determining a target area in the electrochromic component for shielding the projection light corresponding to the background area;
and switching the target area to a coloring state, so that the target area shields the projection light corresponding to the background area.
6. The projection control method according to any one of claims 1 to 4, wherein after the projection image is projected by the projection light source whose brightness is reduced, further comprising:
and when the new projection image is identified not to meet the immersive projection condition, restoring the brightness of the projection light source to the brightness before reduction.
7. A projection control device applied to a projection device is characterized by comprising:
the image acquisition module is used for acquiring a projection image needing to be projected by the projection equipment and identifying whether the projection image meets a preset immersive projection condition, wherein the projection image comprises a main body area and a background area, and the immersive projection condition comprises the following steps: the projection image comprises an audio visual image and/or a decorative image, and the background area of the projection image is a black background;
the brightness control module is used for acquiring the current environmental brightness of the projection area when the projection image meets the immersive projection condition; reducing the brightness of the projection light source to the projection light source brightness corresponding to the environment brightness according to the environment brightness and the corresponding relation between the preset environment brightness and the projection light source brightness in the immersion type projection state so as to carry out the immersion type projection;
and the image projection module is used for projecting the projection image through the projection light source with reduced brightness in the immersion type projection state so as to hide a background area except the main body area.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that it executes the projection control method according to any one of claims 1-6 when it is loaded by a projection apparatus.
9. A projection device comprising a processor and a memory, the memory storing a computer program, wherein the processor executes the projection control method according to any one of claims 1-6 by loading the computer program.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103631069A (en) * | 2013-12-09 | 2014-03-12 | 牛强 | Multifunctional digital studio system |
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| CN102183869B (en) * | 2011-03-22 | 2012-06-27 | 中国科学院半导体研究所 | Laser projection display system based on full-semiconductor laser |
| JP2016057343A (en) * | 2014-09-05 | 2016-04-21 | 株式会社リコー | Projection system, projection device, and projection method |
| KR102358025B1 (en) * | 2015-10-07 | 2022-02-04 | 삼성전자주식회사 | Electronic device and music visualization method thereof |
| CN206196085U (en) * | 2016-10-28 | 2017-05-24 | 汕头大学 | Can focus on projected multi -functional LED lamp device |
| CN210666316U (en) * | 2019-07-09 | 2020-06-02 | 深圳市火乐科技发展有限公司 | Automatic dimming system and projector with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103631069A (en) * | 2013-12-09 | 2014-03-12 | 牛强 | Multifunctional digital studio system |
| CN108881759A (en) * | 2017-05-12 | 2018-11-23 | 三星电子株式会社 | Electronic device and method for showing content screen on the electronic device |
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