CN108737738B - Panoramic camera and exposure method and device thereof - Google Patents
Panoramic camera and exposure method and device thereof Download PDFInfo
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- CN108737738B CN108737738B CN201810362022.0A CN201810362022A CN108737738B CN 108737738 B CN108737738 B CN 108737738B CN 201810362022 A CN201810362022 A CN 201810362022A CN 108737738 B CN108737738 B CN 108737738B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
Abstract
The invention is applicable to the field of cameras and provides a panoramic camera and an exposure method and device thereof. The method comprises the following steps: receiving setting information of a user on one or more interested areas, and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information, or receiving the exposure weight value set by the user; receiving photometric information of each lens of the panoramic camera, and calculating an individual exposure parameter of each lens according to the photometric information; synchronously calculating the exposure of the whole panoramic camera according to the individual exposure parameters of each lens, and calculating the exposure parameters of the whole panoramic camera; adjusting the exposure parameters of each lens according to the exposure weight value, the individual exposure parameters of each lens and the exposure parameters of the whole panoramic camera; and carrying out exposure processing on each lens according to the adjusted exposure parameter of each lens. According to the panoramic camera, different exposure parameters can be adopted for different lenses, and the dynamic range of the panoramic camera is greatly improved.
Description
Technical Field
The invention belongs to the field of cameras, and particularly relates to a panoramic camera and an exposure method and device thereof.
Background
In the panoramic camera in the prior art, the photometric information of each lens is received and synchronized on the master control, the exposure parameters required by the whole camera are calculated, and all the lenses adopt the same exposure parameters, so that the dynamic range of shooting is small. For example, one shot captures a very bright scene, and another shot captures a very dark scene. If all the shots use the same exposure parameters, the bright scene will be very bright, and the dark scene will also be very dark.
Disclosure of Invention
The invention aims to provide a panoramic camera, an exposure method and device thereof and a computer readable storage medium, and aims to solve the problem that all lenses of the panoramic camera adopt the same exposure parameters and have a small dynamic range.
In a first aspect, the present invention provides an exposure method for a panoramic camera, the method comprising:
receiving setting information of a user on one or more interested areas, and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information, or receiving the exposure weight value when each lens of the panoramic camera applies synchronous exposure, which is set by the user;
receiving photometric information of each lens of the panoramic camera, and calculating an individual exposure parameter of each lens according to the photometric information;
synchronously calculating the exposure of the whole panoramic camera according to the individual exposure parameters of each lens, and calculating the exposure parameters of the whole panoramic camera;
adjusting exposure parameters of each lens according to an exposure weight value when each lens of the panoramic camera applies synchronous exposure, individual exposure parameters of each lens and exposure parameters of the whole panoramic camera;
and carrying out exposure processing on each lens according to the adjusted exposure parameter of each lens.
In a second aspect, the present invention provides an exposure apparatus for a panoramic camera, the apparatus comprising:
the setting module is used for receiving setting information of a user on one or more interested areas and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information, or receiving the exposure weight value when each lens of the panoramic camera applies synchronous exposure, which is set by the user;
the first calculation module is used for receiving the photometric information of each lens of the panoramic camera and calculating the individual exposure parameter of each lens according to the photometric information;
the second calculation module is used for synchronously calculating the exposure of the whole panoramic camera according to the individual exposure parameters of each lens and calculating the exposure parameters of the whole panoramic camera;
the adjusting module is used for adjusting the exposure parameters of each lens according to the exposure weight value when each lens of the panoramic camera applies synchronous exposure, the single exposure parameters of each lens and the exposure parameters of the whole panoramic camera;
and the exposure module is used for carrying out exposure processing on each lens according to the adjusted exposure parameter of each lens.
In a third aspect, the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the exposure method of the panoramic camera as described above.
In a fourth aspect, the present invention provides a panoramic camera, comprising: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory and configured to be executed by the one or more processors, the processors implementing the steps of the exposure method of the panoramic camera as described above when executing the computer programs.
In the invention, because the exposure of the panoramic camera is to adjust the exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the region of interest of the user or adjust the exposure weight value when each lens of the panoramic camera applies synchronous exposure set by the user, then the exposure parameter of each lens of the panoramic camera is adjusted according to the exposure weight value, and each lens is exposed according to the adjusted exposure parameter of each lens, namely different lenses can adopt different exposure parameters, the dynamic range of the panoramic camera is greatly improved. For example, one shot captures a very bright scene, and another shot captures a very dark scene. After the method is adopted, bright scenes can be darkened a little, dark scenes can be lightened a little, more details can be seen, and the dynamic range of the shot images can be larger.
Drawings
Fig. 1 is a flowchart of an exposure method of a panoramic camera according to an embodiment of the present invention.
Fig. 2 is a functional block diagram of an exposure apparatus of a panoramic camera according to a second embodiment of the present invention.
Fig. 3 is a block diagram of a detailed structure of a panoramic camera according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
The first embodiment is as follows:
referring to fig. 1, an exposure method of a panoramic camera according to an embodiment of the present invention includes the following steps: it should be noted that the exposure method of the panoramic camera of the present invention is not limited to the flow sequence shown in fig. 1 if the results are substantially the same.
S101, receiving setting information of a user on one or more interested areas, and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information, or receiving the exposure weight value when each lens of the panoramic camera applies synchronous exposure, wherein the exposure weight value is set by the user.
In the first embodiment of the present invention, the receiving of the setting information of the user for the one or more regions of interest, and adjusting the exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information specifically include:
receiving setting information of one or more interested areas, which is set by a user through a computer application program or computer software installed in the portable terminal and sent to the panoramic camera, and adjusting an exposure weight value when each lens of the panoramic camera is synchronously exposed according to the setting information;
alternatively, the first and second electrodes may be,
receiving setting information of one or more interested areas directly set on the panoramic camera by a user, and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information; the setting information for the one or more regions of interest includes a size, a number, and a position of the one or more regions of interest.
The exposure weight value when each lens of the panoramic camera set by the receiving user applies synchronous exposure is specifically as follows:
receiving an exposure weight value which is set by a user through a computer application program or computer software installed in the portable terminal and is sent to the panoramic camera, wherein each lens of the panoramic camera applies synchronous exposure;
alternatively, the first and second electrodes may be,
and receiving an exposure weight value when each lens of the panoramic camera directly set on the panoramic camera by a user applies synchronous exposure.
The method for setting the region of interest in the portable terminal specifically comprises the following steps:
displaying a panoramic picture shot by a panoramic camera for previewing on the portable terminal through a computer application program or computer software installed in the portable terminal;
the portable terminal receives a click instruction of a user on one or more interested areas in the panoramic picture;
the portable terminal converts the region of interest into coordinate data corresponding to the panoramic camera;
the portable terminal generates setting information including the size, number, and position of one or more regions of interest from the coordinate data.
The method for setting the region of interest in the panoramic camera specifically comprises the following steps:
the panoramic camera displays a panoramic picture for previewing;
the method comprises the steps that a panoramic camera receives a click instruction of a user on one or more interested areas in a panoramic picture;
the panoramic camera converts the region of interest into coordinate data corresponding to the panoramic camera;
the panoramic camera generates setting information including the size, number, and location of one or more regions of interest from the coordinate data.
The step of converting the region of interest into the coordinate data corresponding to the panoramic camera may specifically be:
and analyzing the lenses of the panoramic camera in which the regions of interest are respectively positioned, and the information such as the number, the size, the position and the like of each lens.
S102, receiving photometric information of each lens of the panoramic camera, and calculating an individual exposure parameter of each lens according to the photometric information.
In the first embodiment of the present invention, adjusting the exposure weight value of the lens of the panoramic camera according to the setting information may specifically be:
and adjusting the exposure weight value of each lens of the panoramic camera when synchronous exposure is applied according to the setting information, increasing the weight value of the lens corresponding to the region of interest of the user, and reducing the weight values of the lenses corresponding to other regions or setting the weight values of the lenses corresponding to other regions to be 0.
S103, synchronously calculating the exposure of the whole panoramic camera according to the individual exposure parameters of each lens, and calculating the exposure parameters of the whole panoramic camera.
And S104, adjusting the exposure parameters of each lens according to the exposure weight value when each lens of the panoramic camera is synchronously exposed, the single exposure parameters of each lens and the exposure parameters of the whole panoramic camera.
For example: the exposure parameter of the whole panoramic camera is A, the single exposure parameter of one lens is B, the exposure weight value of the lens during synchronous exposure is W, and the weight range is 0-Wmax. One simple way of application is: the exposure parameter of the lens is a × W + B (Wmax-W), which is equivalent to determining the ratio of the exposure parameter of the entire panoramic camera to the exposure parameter of the lens alone according to the exposure weight value when the lens applies the synchronous exposure.
And S105, carrying out exposure processing on each lens according to the adjusted exposure parameter of each lens.
In the first embodiment of the present invention, after S105, the method may further include the following steps:
when images shot by each lens and subjected to exposure processing are spliced, fusion of adjacent lenses is adjusted according to an exposure weight value and an exposure parameter of each lens when each lens of the panoramic camera applies synchronous exposure, and differences caused by the fact that each lens adopts different exposure parameters are reduced.
In the first embodiment of the present invention, after S101, the method may further include the following steps:
judging a lens corresponding to the region of interest;
and if one part of the lenses of the panoramic camera has no interested area, adjusting a synchronous exposure algorithm of the panoramic camera to exclude the lenses without the interested area from the synchronous calculation of exposure.
Example two:
referring to fig. 2, an exposure apparatus of a panoramic camera according to a second embodiment of the present invention includes:
the setting module 11 is configured to receive setting information of one or more regions of interest from a user, and adjust an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information, or receive an exposure weight value when each lens of the panoramic camera applies synchronous exposure, where the exposure weight value is set by the user;
a first calculating module 12, configured to receive light metering information of each lens of the panoramic camera, and calculate an individual exposure parameter of each lens according to the light metering information;
the second calculation module 13 is configured to perform synchronous calculation on the exposure of the entire panoramic camera according to the individual exposure parameter of each lens, and calculate the exposure parameter of the entire panoramic camera;
an adjusting module 14, configured to adjust an exposure parameter of each lens according to an exposure weight value when each lens of the panoramic camera applies synchronous exposure, an individual exposure parameter of each lens, and an exposure parameter of the entire panoramic camera;
and the exposure module 15 is configured to perform exposure processing on each lens according to the adjusted exposure parameter of each lens.
In the second embodiment of the present invention, the exposure apparatus of the panoramic camera may further include:
and the splicing module is used for adjusting the fusion of adjacent lenses according to the exposure weight value of each lens of the panoramic camera during synchronous exposure and the exposure parameter of each lens when the images shot by each lens are spliced and subjected to exposure processing, so that the difference caused by different exposure parameters adopted by each lens is reduced.
The exposure device of the panoramic camera and the exposure method of the panoramic camera provided by the second embodiment of the invention belong to the same concept, and the specific implementation process is detailed throughout the specification and is not repeated herein.
Example three:
a third embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, implements the steps of the exposure method of the panoramic camera according to the first embodiment of the present invention.
Example four:
fig. 3 shows a specific block diagram of a panoramic camera according to a fourth embodiment of the present invention, where a panoramic camera 100 includes: one or more processors 101, a memory 102, and one or more computer programs, wherein the processors 101 and the memory 102 are connected by a bus, the one or more computer programs are stored in the memory 102 and configured to be executed by the one or more processors 101, and the processor 101 implements the steps of the exposure method of the panoramic camera as provided in the first embodiment of the present invention when executing the computer programs.
In the invention, because the exposure of the panoramic camera is to adjust the exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the region of interest of the user or adjust the exposure weight value when each lens of the panoramic camera applies synchronous exposure set by the user, then the exposure parameter of each lens of the panoramic camera is adjusted according to the exposure weight value, and each lens is exposed according to the adjusted exposure parameter of each lens, namely different lenses can adopt different exposure parameters, the dynamic range of the panoramic camera is greatly improved. For example, one shot captures a very bright scene, and another shot captures a very dark scene. After the method is adopted, bright scenes can be darkened a little, dark scenes can be lightened a little, more details can be seen, and the dynamic range of the shot images can be larger.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An exposure method of a panoramic camera, the method comprising:
receiving setting information of a user on one or more interested areas, and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information, or receiving the exposure weight value when each lens of the panoramic camera applies synchronous exposure, which is set by the user;
receiving photometric information of each lens of the panoramic camera, and calculating an individual exposure parameter of each lens according to the photometric information;
synchronously calculating the exposure of the whole panoramic camera according to the individual exposure parameters of each lens, and calculating the exposure parameters of the whole panoramic camera;
adjusting exposure parameters of each lens according to an exposure weight value when each lens of the panoramic camera applies synchronous exposure, individual exposure parameters of each lens and exposure parameters of the whole panoramic camera; the proportion of the exposure parameters of the whole panoramic camera to the use of the individual exposure parameters of each lens is determined according to the exposure weight value when each lens of the panoramic camera applies synchronous exposure;
and carrying out exposure processing on each lens according to the adjusted exposure parameter of each lens.
2. The exposure method according to claim 1, wherein after the exposure processing is performed according to the adjusted exposure parameter of each lens, the method further comprises:
when images shot by each lens and subjected to exposure processing are spliced, fusion of adjacent lenses is adjusted according to an exposure weight value and an exposure parameter of each lens when each lens of the panoramic camera applies synchronous exposure, and differences caused by the fact that each lens adopts different exposure parameters are reduced.
3. The exposure method according to claim 1, wherein the receiving of the setting information of the user on the one or more regions of interest, and the adjusting of the exposure weight value when each lens of the panoramic camera applies the synchronous exposure according to the setting information specifically includes:
receiving setting information of one or more interested areas, which is set by a user through a computer application program or computer software installed in the portable terminal and sent to the panoramic camera, and adjusting an exposure weight value when each lens of the panoramic camera is synchronously exposed according to the setting information;
alternatively, the first and second electrodes may be,
receiving setting information of one or more interested areas directly set on the panoramic camera by a user, and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information;
the exposure weight value when each lens of the panoramic camera set by the receiving user applies synchronous exposure is specifically as follows:
receiving an exposure weight value which is set by a user through a computer application program or computer software installed in the portable terminal and is sent to the panoramic camera, wherein each lens of the panoramic camera applies synchronous exposure;
alternatively, the first and second electrodes may be,
and receiving an exposure weight value when each lens of the panoramic camera directly set on the panoramic camera by a user applies synchronous exposure.
4. The exposure method according to claim 3, wherein the setting information for the one or more regions of interest includes a size, a number, and a position of the one or more regions of interest.
5. The exposure method according to claim 4, wherein the region of interest is set in the portable terminal in a manner that:
displaying a panoramic picture shot by a panoramic camera for previewing on the portable terminal through a computer application program or computer software installed in the portable terminal;
the portable terminal receives a click instruction of a user on one or more interested areas in the panoramic picture;
the portable terminal converts the region of interest into coordinate data corresponding to the panoramic camera;
the portable terminal generating setting information including the size, number and position of one or more regions of interest from the coordinate data;
the method for setting the region of interest in the panoramic camera specifically comprises the following steps:
the panoramic camera displays a panoramic picture for previewing;
the method comprises the steps that a panoramic camera receives a click instruction of a user on one or more interested areas in a panoramic picture;
the panoramic camera converts the region of interest into coordinate data corresponding to the panoramic camera;
the panoramic camera generates setting information including the size, number, and location of one or more regions of interest from the coordinate data.
6. The exposure method according to claim 1, wherein the adjusting of the exposure weight value when each lens of the panoramic camera applies the synchronous exposure according to the setting information is specifically:
and adjusting the exposure weight value of each lens of the panoramic camera when synchronous exposure is applied according to the setting information, increasing the weight value of the lens corresponding to the region of interest of the user, and reducing the weight values of the lenses corresponding to other regions or setting the weight values of the lenses corresponding to other regions to be 0.
7. The exposure method according to claim 1, wherein after receiving setting information of one or more regions of interest by a user, the method further comprises:
judging a lens corresponding to the region of interest;
and if one part of the lenses of the panoramic camera has no interested area, adjusting a synchronous exposure algorithm of the panoramic camera to exclude the lenses without the interested area from the synchronous calculation of exposure.
8. An exposure apparatus of a panoramic camera, the apparatus comprising:
the setting module is used for receiving setting information of a user on one or more interested areas and adjusting an exposure weight value when each lens of the panoramic camera applies synchronous exposure according to the setting information, or receiving the exposure weight value when each lens of the panoramic camera applies synchronous exposure, which is set by the user;
the first calculation module is used for receiving the photometric information of each lens of the panoramic camera and calculating the individual exposure parameter of each lens according to the photometric information;
the second calculation module is used for synchronously calculating the exposure of the whole panoramic camera according to the individual exposure parameters of each lens and calculating the exposure parameters of the whole panoramic camera;
the adjusting module is used for adjusting the exposure parameters of each lens according to the exposure weight value when each lens of the panoramic camera applies synchronous exposure, the single exposure parameters of each lens and the exposure parameters of the whole panoramic camera; the proportion of the exposure parameters of the whole panoramic camera to the use of the individual exposure parameters of each lens is determined according to the exposure weight value when each lens of the panoramic camera applies synchronous exposure;
and the exposure module is used for carrying out exposure processing on each lens according to the adjusted exposure parameter of each lens.
9. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the exposure method of the panoramic camera according to any one of claims 1 to 7.
10. A panoramic camera, comprising: one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory and configured to be executed by the one or more processors, characterized in that the processors, when executing the computer programs, implement the steps of the exposure method of the panoramic camera according to any one of claims 1 to 7.
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| CN110049257B (en) * | 2019-05-31 | 2021-09-21 | 影石创新科技股份有限公司 | Method for determining semi-synchronous exposure parameters and electronic device |
| CN110213494B (en) * | 2019-07-03 | 2021-05-11 | Oppo广东移动通信有限公司 | Photographing method and device, electronic equipment and computer readable storage medium |
| CN110446032B (en) * | 2019-08-29 | 2024-01-23 | 圆周率科技(常州)有限公司 | Method for testing synchronization of exposure time of multiple lenses of panoramic camera |
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| CN110446033B (en) * | 2019-08-29 | 2024-01-23 | 圆周率科技(常州)有限公司 | Multi-lens frame synchronization system for panoramic camera testing |
| CN110505368B (en) * | 2019-08-29 | 2023-06-06 | 圆周率科技(常州)有限公司 | Multi-lens exposure time synchronization system for panoramic camera testing |
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