CN110933289A - Continuous shooting method based on binocular camera, shooting device and terminal equipment - Google Patents
Continuous shooting method based on binocular camera, shooting device and terminal equipment Download PDFInfo
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- CN110933289A CN110933289A CN201811103297.9A CN201811103297A CN110933289A CN 110933289 A CN110933289 A CN 110933289A CN 201811103297 A CN201811103297 A CN 201811103297A CN 110933289 A CN110933289 A CN 110933289A
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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
- H04N23/80—Camera processing pipelines; Components thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Abstract
The embodiment of the invention discloses a continuous shooting method based on a binocular camera, a shooting device and terminal equipment, relates to the technical field of electronics, and can realize continuous shooting in a video recording process. The method comprises the following steps: starting a video recording mode according to a video recording mode starting instruction, and outputting a first image data stream acquired by the first image sensor to a video encoder so that the video encoder encodes the first image data stream to generate a video recording video; when a continuous shooting mode starting instruction is received, caching a second image data stream acquired by a second image sensor, wherein the second image data stream comprises at least two image data frames; when a continuous shooting trigger instruction is received, reading at least two image data frames in the second image data stream; and carrying out image coding on the at least two image data frames to generate at least two photos.
Description
Technical Field
The embodiment of the invention relates to the technical field of electronics, in particular to a binocular camera-based continuous shooting method, a photographing device and terminal equipment.
Background
In the industry, terminal products such as mobile phones and the like have a photographing function in a video recording process, and only one photo can be taken in a video recording process generally. Specifically, in the video recording process, a video channel is opened to continuously acquire an image data stream, the video channel is paused when a single-shot shutter key is pressed to perform snapshot shooting, an image data frame is acquired through the created snapshot channel and is encoded into a picture in a format such as JPEG (joint photographic experts group) and then the video channel is opened again to work. However, in the video recording process, the continuous shooting function cannot be realized because the continuous shooting function of a single camera is based on a ZSL mode (Zero Shutter Lag), which is a unique mode in the shooting mode, and the principle is that a plurality of image data frames are pre-stored in a memory, and when a user triggers a continuous shooting button, a device detects a continuous shooting instruction, and continuously takes out a plurality of image data frames from the memory and codes the image data frames to form a plurality of continuous shooting photos. Due to the fact that the ZSL occupies a large memory and a plurality of image data frames need to be prestored, the mode cannot be started during video recording, and the continuous shooting function cannot be achieved during the video recording process.
Disclosure of Invention
The embodiment of the invention provides a binocular camera-based continuous shooting method, a photographing device and terminal equipment, which can realize continuous shooting in a video recording process.
In a first aspect, a binocular camera-based continuous shooting method is provided, the binocular camera including a first image sensor and a second image sensor, the method including: starting a video recording mode according to a video recording mode starting instruction, and outputting a first image data stream acquired by the first image sensor to a video encoder so that the video encoder encodes the first image data stream to generate a video recording video; when a continuous shooting mode starting instruction is received, caching a second image data stream acquired by a second image sensor, wherein the second image data stream comprises at least two image data frames; when a continuous shooting trigger instruction is received, reading at least two image data frames in the second image data stream; and carrying out image coding on the at least two image data frames to generate at least two photos. Therefore, when the first image data stream collected by the first image sensor is encoded to generate a video, the second image data stream collected by the second image sensor of the binocular camera can be cached; when a continuous shooting trigger instruction is received, reading at least two image data frames in a second image data stream; and carrying out image coding on at least two image data frames to generate at least two photos, thereby realizing continuous shooting in the video recording process.
In a second aspect, a binocular camera-based photographing apparatus is provided, the binocular camera including a first image sensor and a second image sensor, the photographing apparatus comprising:
the processing unit is used for starting a video recording mode according to a video recording mode starting instruction and outputting a first image data stream acquired by the first image sensor to a video encoder so that the video encoder encodes the first image data stream to generate a video recording video;
the buffer unit is used for buffering a second image data stream acquired by the second image sensor when a continuous shooting mode starting instruction is received, wherein the second image data stream comprises at least two image data frames;
the processing unit is further configured to read at least two image data frames in the second image data stream when a continuous shooting trigger instruction is received;
the processing unit is further configured to perform image coding on the at least two image data frames to generate at least two photos.
In a third aspect, a binocular camera-based photographing device is provided, which comprises a communication interface, a processor, a memory and a bus; the memory is used for storing computer execution instructions, the processor is connected with the memory through the bus, and when the photographing device based on the binocular camera runs, the processor executes the computer execution instructions stored in the memory so that the photographing device based on the binocular camera executes the continuous photographing method based on the binocular camera.
In a fourth aspect, a computer storage medium is provided, which includes instructions that, when executed on a computer, cause the computer to execute the binocular camera based photographing method of the first aspect.
In a fifth aspect, a terminal device is provided, which includes the binocular camera based photographing apparatus according to the second and third aspects.
It can be understood that any one of the terminal device, the binocular camera-based photographing apparatus, or the computer storage medium provided above is used to execute the method corresponding to the first aspect provided above, and therefore, the beneficial effects that can be achieved by the method according to the first aspect and the beneficial effects of the corresponding schemes in the following detailed description may be referred to, and are not repeated herein.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a continuous shooting method based on a binocular camera according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a photographing device based on a binocular camera according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Currently, in the industry, terminal products such as mobile phones and the like have a photographing function in a video recording process, and generally, only one photo can be taken in the video recording process. Specifically, in the video recording process, a video channel is opened to continuously acquire an image data stream, the video channel is paused when a single-shot shutter key is pressed to perform snapshot shooting, an image data frame is acquired through the created snapshot channel and is encoded into a picture in a format such as JPEG (joint photographic experts group) and then the video channel is opened again to work. However, in the video recording process, the continuous shooting function cannot be realized because the continuous shooting function of a single camera is based on a ZSL mode (Zero shutter lag), which is a unique mode in the shooting mode, and the principle is that a plurality of image data frames are pre-stored in a memory, and when a user triggers a continuous shooting button, a device detects a continuous shooting instruction, and continuously takes out a plurality of image data frames from the memory and codes the image data frames to form a plurality of continuous shooting photos. Due to the fact that the ZSL occupies a large memory and a plurality of image data frames need to be prestored, the mode cannot be started during video recording, and the continuous shooting function cannot be achieved during the video recording process.
To solve the above problem, a terminal device, which may be a mobile phone, a smart camera, a video camera, or a tablet computer, for example, is provided in the following embodiments. Taking the mobile phone 100 as the above terminal device for example, the mobile phone 100 may specifically include: processor 101, memory 102, touch screen 103, communication interface 104, key device 105, binocular camera 106, and the like. These components may communicate via a communication bus or signal line (107 in FIG. 1). Those skilled in the art will appreciate that the hardware configuration shown in fig. 1 is not intended to be limiting, and that the handset may include more or fewer components than those shown, or a different arrangement of components. For example: radio frequency RF circuitry, bluetooth devices, sensors, wireless fidelity Wi-Fi devices, location devices, audio circuitry, and power supply devices, among others, may also be included.
The processor 101 is a control center of the mobile phone 100, connects various components of the mobile phone 100 by using various interfaces and lines, and executes various functions and processes data of the mobile phone 100 by running or executing an application program stored in the memory 102 and calling data stored in the memory 102. In some embodiments, processor 101 may include one or more processing units. In some embodiments of the present application, the processor 101 may process an instruction input through the key device 106 or the touch screen 103, for example: a video recording mode starting instruction, a continuous shooting trigger instruction, a single shooting trigger instruction and the like are used for realizing a human-computer interaction process; the processor 101 may include a video encoder for encoding the first image data stream captured by the binocular camera to generate a video, and the processor 101 may implement a software encoder by running a program in a memory to encode at least two frames of image data read from the second image data stream. The memory 102 is used for storing application programs and data, and the processor 101 executes various functions and data processing of the mobile phone 100 by running the application programs and data stored in the memory 102. The memory 102 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created from using the cellular phone 101. Further, the memory 102 may include high speed Random Access Memory (RAM), and may also include non-volatile memory. The memory 102 may store various operating systems, such as an iOS operating system, an Android operating system, and the like. The memory 102 may be independent and connected to the processor 101 through the communication bus. The touch screen 103 may specifically include a touch pad 103-1 and a display 103-2. The touch pad 103-1 can capture touch events of the user of the mobile phone 101 thereon and transmit the captured touch information to other devices (e.g., the processor 101). The display (also referred to as a display screen) 103-2 may be used to display information entered by or provided to the user as well as various menus of the handset 100. The application can be a video mode selection interface, a photographing mode selection interface and the like. When a user triggers a menu option on the display through the touch pad, the selection of starting the video recording mode or the continuous shooting mode or the single shooting mode can be triggered. A communication interface 104 for providing various interfaces for external input/output devices. For example, the mouse is connected through a Universal Serial Bus (USB) interface, and the SIM card provided by a telecom operator is connected through metal contacts on a card slot of the SIM card. The key device 105, for example, a hardware key on a mobile phone or a smart camera, which may be a power key, a volume control key, or a shutter key, may trigger the continuous shooting mode and the single shooting mode to enter, and trigger a continuous shooting trigger instruction or a single shooting trigger instruction in this application. Of course, the function can also be realized through virtual keys on the touch pad. A binocular camera 106 comprising a first image sensor and a second image sensor, wherein the image data streams may be acquired when both image sensors are powered on and turned on.
Based on the above hardware structure, an embodiment of the present invention provides a continuous shooting method based on a binocular camera, where the binocular camera includes a first image sensor and a second image sensor, and as shown in fig. 2, the method includes the following steps:
201. and starting a video recording mode according to a video recording mode starting instruction, and outputting a first image data stream acquired by a first image sensor to a video encoder so that the video encoder encodes the first image data stream to generate a video recording video.
In general, a device having a binocular camera is generally provided with two image sensors (also called a main camera and a sub camera). In the video recording mode, the device with the binocular camera only realizes the video recording function through the main camera (the first image sensor), only creates a video (preview) channel for the main camera, and performs video coding on a first image data stream acquired by the main camera to generate a video recording video. And although the secondary camera (second image sensor) is in the power-on state, the secondary camera does not process the second image data stream acquired by the secondary camera, so that the secondary camera can be temporarily turned off, but the response time can be reduced when the subsequent equipment controls the secondary camera to output the second image data stream when the secondary camera is in the power-on state. The video mode starting instruction can be an open camera (video starting) command generated by the mobile phone according to the triggering of the user, and specifically, after the video mode is started, the method further comprises the steps of electrifying the first image sensor, and starting the first image sensor to acquire a first image data stream; the second image sensor is powered up and turned off so that the second image sensor does not output a data stream.
202. And when a continuous shooting mode starting instruction is received, caching a second image data stream acquired by a second image sensor, wherein the second image data stream comprises at least two image data frames.
Specifically, the continuous shooting mode starting instruction may be triggered by a signal input by a user through a touch screen or triggered by pressing a photographing key for a long time, for example, the continuous shooting mode starting instruction may be an enable longshot command generated by the mobile phone according to the trigger of the user (for example, pressing a shutter key for a long time), when the continuous shooting mode starting instruction is received, the second image sensor is started to acquire the second image data stream, and a corresponding cache space is allocated for the second image data stream in the memory to cache the data stream, for example, a ZSL mode may be adopted to establish a dedicated snapshot channel in the memory for the continuous shooting program, and the second image data stream is transmitted to the memory and stored through a HAL (hardware abstraction layer) layer of the dual-mode camera.
In addition, when a single-shot triggering instruction is received in the single-shot mode, an image data frame is collected through the first image sensor, and the image data frame is input to the video encoder, so that the video encoder encodes the image data frame to generate a photo. For example, in the video recording mode, a user clicks a command generated by a shooting button (which may be a shutter key or a virtual function button on a touch pad), and at this time, the number of shots is set to 1 through a snapshot number variable, so as to start the single shooting mode; when a single-shot triggering instruction is received, for example, a snapshot command generated by triggering a shutter key is received, the single-shot function is realized in the video recording process. Specifically, in the single shooting mode, a user clicks a shutter key, the first image sensor stops the video recording function to close the video channel, a snapshot channel is created for a single shooting program to collect an image data frame, the image data frame is coded into a photo in a format such as JPEG, and then the video channel is opened again to work.
203. When a burst trigger instruction is received, at least two frames of image data are read in the second image data stream.
Specifically, since the second image data stream is buffered in the memory, when a continuous shooting trigger command is received, for example, when the shutter button is pressed in the continuous shooting mode, at least two frames of image data are read from the second image data stream at a certain rate (for example, 40 ms).
204. And carrying out image coding on the at least two image data frames to generate at least two photos.
Meanwhile, because the first image sensor of the binocular camera is in a video recording mode, that is, the first image data stream is continuously transmitted to the video encoder for video recording and video encoding, the video recording process occupies a processing capability of a Digital Signal Processing (DSP), so that the DSP cannot be used to encode the image data frame in step 204, and the mobile phone is required to operate the software encoder to encode the image data frame; finally, after the encoding is completed, a photo in a predetermined format (such as jpeg) is formed and transmitted to an APP (application program) running on the mobile phone through a callback function for displaying.
Therefore, when the first image data stream collected by the first image sensor is coded to generate a video, the second image data stream collected by the second image sensor of the binocular camera can be buffered; when a continuous shooting trigger instruction is received, reading at least two image data frames in a second image data stream; and carrying out image coding on at least two image data frames to generate at least two photos, thereby realizing continuous shooting in the video recording process.
Referring to fig. 3, a photographing device based on a binocular camera is provided, which is applied to the terminal device or a chip in the terminal device, the binocular camera includes a first image sensor and a second image sensor, and the photographing device includes:
the processing unit 31 is configured to start a video recording mode according to a video recording mode start instruction, and output a first image data stream acquired by the first image sensor to a video encoder, so that the video encoder encodes the first image data stream to generate a video recording video;
the buffer unit 32 is configured to buffer a second image data stream acquired by the second image sensor when a continuous shooting mode start instruction is received, where the second image data stream includes at least two image data frames;
the processing unit 31 is further configured to read at least two image data frames in the second image data stream when a continuous shooting trigger instruction is received;
the processing unit 31 is further configured to perform image coding on the at least two image data frames to generate at least two photos.
Optionally, the processing unit 31 is further configured to power on the first image sensor, and start the first image sensor to acquire the first image data stream; powering on the second image sensor and turning off the second image sensor so that the second image sensor does not output a data stream; and when a continuous shooting mode starting instruction is received, starting the second image sensor to collect the second image data stream.
Optionally, the processing unit 31 is further configured to, when a single-shot trigger instruction is received in a single-shot mode, acquire an image data frame through the first image sensor, and output the image data frame to the video encoder, so that the video encoder encodes the image data frame to generate a photo.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and the function thereof is not described herein again. When the binocular camera based photographing apparatus is applied to the terminal device or a chip in the terminal device, the processing unit 31 may be the processor 101 in fig. 1; the cache unit 32 may be the memory 102 of fig. 1.
The embodiment of the invention provides terminal equipment which comprises the binocular camera-based photographing device. Further, a computing storage medium (or media) is also provided, comprising instructions which, when executed, perform the operations of the method in the above embodiments. Additionally, a computer program product is also provided, comprising the above-described computing storage medium (or media).
It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A binocular camera-based continuous shooting method, wherein the binocular camera comprises a first image sensor and a second image sensor, the method comprising:
starting a video recording mode according to a video recording mode starting instruction, and outputting a first image data stream acquired by the first image sensor to a video encoder so that the video encoder encodes the first image data stream to generate a video recording video;
when a continuous shooting mode starting instruction is received, caching a second image data stream acquired by a second image sensor, wherein the second image data stream comprises at least two image data frames;
when a continuous shooting trigger instruction is received, reading at least two image data frames in the second image data stream;
and carrying out image coding on the at least two image data frames to generate at least two photos.
2. The binocular camera-based continuous shooting method according to claim 1, wherein after the video recording mode is started according to the video recording mode starting instruction, the method further comprises: powering on the first image sensor, and starting the first image sensor to acquire the first image data stream;
powering on the second image sensor and turning off the second image sensor so that the second image sensor does not output a data stream;
and when a continuous shooting mode starting instruction is received, starting the second image sensor to collect the second image data stream.
3. The binocular camera-based continuous shooting method of claim 1, wherein when a single-shot trigger command is received in a single-shot mode,
an image data frame is collected through the first image sensor, and the image data frame is output to the video encoder, so that the video encoder encodes the image data frame to generate a picture.
4. The utility model provides a device of shooing based on binocular camera which characterized in that, binocular camera includes first image sensor and second image sensor, the device of shooing includes:
the processing unit is used for starting a video recording mode according to a video recording mode starting instruction and outputting a first image data stream acquired by the first image sensor to a video encoder so that the video encoder encodes the first image data stream to generate a video recording video;
the buffer unit is used for buffering a second image data stream acquired by the second image sensor when a continuous shooting mode starting instruction is received, wherein the second image data stream comprises at least two image data frames;
the processing unit is further configured to read at least two image data frames in the second image data stream when a continuous shooting trigger instruction is received;
the processing unit is further configured to perform image coding on the at least two image data frames to generate at least two photos.
5. The binocular camera based photographing apparatus of claim 4,
the processing unit is further configured to power on the first image sensor and start the first image sensor to acquire the first image data stream; powering on the second image sensor and turning off the second image sensor so that the second image sensor does not output a data stream; and when a continuous shooting mode starting instruction is received, starting the second image sensor to collect the second image data stream.
6. The binocular camera based photographing apparatus of claim 4, wherein the processing unit is further configured to acquire an image data frame through the first image sensor and output the image data frame to the video encoder when a single-shot trigger command is received in a single-shot mode, so that the video encoder encodes the image data frame to generate a photo.
7. A photographing device based on a binocular camera is characterized by comprising a communication interface, a processor, a memory and a bus; the memory is used for storing computer execution instructions, the processor is connected with the memory through the bus, and when the binocular camera based photographing device runs, the processor executes the computer execution instructions stored in the memory so as to enable the binocular camera based photographing device to execute the binocular camera based continuous photographing method according to any one of claims 1 to 3.
8. A computer storage medium comprising instructions that, when executed on a computer, cause the computer to perform the binocular camera based continuous shooting method of any one of claims 1 to 3.
9. Terminal device, characterized in that it comprises a binocular camera based photographing apparatus according to any of claims 4-7.
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| CN115002340B (en) * | 2021-10-22 | 2023-06-27 | 荣耀终端有限公司 | Video processing method and electronic equipment |
| WO2024000352A1 (en) * | 2022-06-30 | 2024-01-04 | Intel Corporation | Methods and apparatus to improve camera image quality |
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