CN112804458A - Shooting view finding method and device, terminal equipment and storage medium - Google Patents
Shooting view finding method and device, terminal equipment and storage medium Download PDFInfo
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- 238000009432 framing Methods 0.000 claims abstract description 86
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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
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/671—Focus control based on electronic image sensor signals in combination with active ranging signals, e.g. using light or sound signals emitted toward objects
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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
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
- H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
- H04N23/632—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters
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Abstract
A shooting and framing method and device, terminal equipment and a storage medium are provided, the method is applied to the terminal equipment, the terminal equipment comprises a camera module and a distance measuring device, the camera module at least comprises a first camera and a second camera which are adjacently arranged, the framing range of the second camera is smaller than the framing range of the first camera and is within the framing range of the first camera, the method comprises the following steps: acquiring a target distance between the camera module and a target to be shot through a distance measuring device; according to the target distance, determining the position and the window size of a second view frame of a second camera in a first view frame of the first camera; and displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, wherein the second viewing frame is used for displaying the shooting content corresponding to the second camera. By implementing the embodiment of the application, the shooting view finding difficulty of the terminal equipment can be reduced, and the shooting definition is improved.
Description
Technical Field
The present application relates to the field of image technologies, and in particular, to a method and an apparatus for shooting and framing, a terminal device, and a storage medium.
Background
At present, a conventional camera on a terminal device generally has a large shooting object distance and is suitable for shooting objects with conventional sizes in a short distance. However, in practice, it is found that when a relatively tiny object needs to be photographed, a camera usually needs to be close to the object, or a camera with a small object distance needs to be used for photographing, which often results in that a photographing target cannot be found, and the photographing and framing difficulty of the terminal device is increased; meanwhile, the camera is easy to be out of focus, so that the shot picture becomes fuzzy, and the shooting definition is reduced.
Disclosure of Invention
The embodiment of the application discloses a shooting and framing method and device, terminal equipment and a storage medium, which can reduce shooting and framing difficulty of the terminal equipment and improve shooting definition.
The embodiment of the application discloses in a first aspect a shooting and framing method, applied to terminal equipment, terminal equipment includes camera module and range unit, camera module includes first camera and the second camera of adjacent setting at least, the scope of framing of second camera is less than the scope of framing of first camera, just the scope of framing of second camera is in the scope of framing of first camera, the method includes:
acquiring a target distance between the camera module and a target to be shot through the distance measuring device;
determining the position and the window size of a second viewing frame of the second camera in the first viewing frame of the first camera according to the target distance;
and displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, wherein the second viewing frame is used for displaying shooting contents corresponding to the second camera.
As an optional implementation manner, in the first aspect of this embodiment of the present application, after the displaying the second finder frame within the displayed first finder frame according to the position and the window size, the method further includes:
when the target distance is detected to be smaller than a shooting distance threshold value, switching a displayed first preview image in the first view frame into a second preview image corresponding to the second view frame, wherein the first preview image is a preview image acquired by the first camera, and the second preview image is a preview image acquired by the second camera;
and controlling the second camera to shoot the second preview image corresponding to the second viewing frame.
As an optional implementation manner, in the first aspect of the embodiment of the present application, when it is detected that the target distance is smaller than the shooting distance threshold, the switching the displayed first preview image in the first view frame to a second preview image corresponding to the second view frame includes:
and when the target distance is detected to be smaller than the shooting distance threshold value and the displayed first preview image in the first viewing frame meets the out-of-focus condition, switching the first preview image in the first viewing frame into a second preview image corresponding to the second viewing frame.
As an optional implementation manner, in the first aspect of the embodiment of the present application, before the switching, when it is detected that the target distance is smaller than the shooting distance threshold, the displayed first preview image in the first view frame to the second preview image corresponding to the second view frame, the method further includes:
identifying the target to be shot according to a first preview image in the first viewing frame;
when it is detected that the target distance is smaller than the shooting distance threshold, switching the displayed first preview image in the first view frame to a second preview image corresponding to the second view frame, including:
and when the target distance is detected to be smaller than the shooting distance threshold value and the target to be shot is detected to be in the second viewing frame, switching the first preview image in the first viewing frame into a second preview image corresponding to the second viewing frame.
As an optional implementation manner, in the first aspect of the embodiment of the present application, the determining, according to the target distance, a position and a window size of a second view frame of the second camera within the first view frame of the first camera includes:
acquiring a relative position relationship among the first camera, the second camera and the distance measuring device;
determining the position of a second viewing frame of the second camera in the first viewing frame of the first camera according to the relative position relation;
and determining the window size of the second viewing frame according to the position of the second viewing frame and the target distance.
As an optional implementation manner, in the first aspect of the embodiment of the present application, before the determining, according to the position of the second finder frame and the target distance, the method further includes:
detecting inclination angles between shooting planes where the first camera and the second camera are located and a target plane where the target to be shot is located;
the determining the window size of the second view frame according to the position of the second view frame and the target distance includes:
and determining the window size of the second viewing frame according to the position of the second viewing frame, the inclination angle and the target distance.
As an optional implementation manner, in the first aspect of this embodiment of the present application, after the displaying the second finder frame within the displayed first finder frame according to the position and the window size, the method further includes:
acquiring a local preview image in the second viewing frame;
amplifying the partial preview image according to a preview amplification factor to obtain a preview amplified image, wherein the preview amplification factor is smaller than the amplification factor of the second camera and is larger than 1;
and displaying the preview enlarged image.
The second aspect of the embodiment of the application discloses a shoot view finder, is applied to terminal equipment, terminal equipment includes camera module and range unit, camera module includes first camera and the second camera of adjacent setting at least, the scope of finding a view of second camera is less than the scope of finding a view of first camera, just the scope of finding a view of second camera is in the scope of finding a view of first camera, shoot view finder and include:
the distance acquisition unit is used for acquiring a target distance between the camera module and a target to be shot through the distance measuring device;
a framing determining unit, configured to determine, according to the target distance, a position and a window size of a second framing frame of the second camera in the first framing frame of the first camera;
and the display unit is used for displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, and the second viewing frame is used for displaying shooting contents corresponding to the second camera.
A third aspect of the embodiments of the present application discloses a terminal device, including:
a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to execute all or part of the steps of any one of the shooting and framing methods disclosed in the first aspect of the embodiments of the present application.
A fourth aspect of the embodiments of the present application discloses a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements all or part of the steps in any one of the shooting framing methods disclosed in the first aspect of the embodiments of the present application.
A fifth aspect of the embodiments of the present application discloses a computer program product, which, when running on a computer, causes the computer to execute all or part of the steps in any one of the shooting and framing methods of the first aspect of the embodiments of the present application.
Compared with the related art, the embodiment of the application has the following beneficial effects:
in this application embodiment, can include camera module and range unit on the terminal equipment, this camera module can include the first camera and the second camera of adjacent setting at least, and wherein, the scope of finding a view of second camera is less than the scope of finding a view of first camera, and the scope of finding a view of second camera is in the scope of finding a view of first camera. On the basis, the terminal equipment can acquire the target distance between the camera module and the target to be shot through the distance measuring device; according to the target distance, the terminal equipment can determine the position and the window size of a second view frame of a second camera in a first view frame of a first camera of the terminal equipment; according to the position and the window size, the terminal device can display the second viewing frame in the first viewing frame displayed by the terminal device, and the second viewing frame is used for displaying shooting contents corresponding to the second camera. Therefore, by implementing the embodiment of the application, the whole field of view can be obtained by using the first view frame of the first camera with a larger view range through the cooperation of the plurality of cameras with different view ranges, and the second view frame of the second camera with a smaller view range is displayed in the first view frame, so that the target to be shot can be conveniently found in the whole field of view by using the second view frame, and the shooting view difficulty of the terminal equipment is reduced; simultaneously, after finding the target of waiting to shoot, shoot through switching to the second camera, also avoided utilizing conventional camera to press close to the out-of-focus condition that easily appears when waiting to shoot the target, be favorable to promoting terminal equipment's shooting definition.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an application scene of a shooting and framing method disclosed in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a terminal device disclosed in an embodiment of the present application;
FIG. 3 is a flowchart illustrating a method for framing in shooting according to an embodiment of the present disclosure;
FIG. 4 is a flow chart illustrating another photographing view finding method disclosed in the embodiments of the present application;
fig. 5A is a schematic diagram of a terminal device disclosed in an embodiment of the present application before a view interface is switched;
fig. 5B is a schematic diagram of a terminal device after a view interface is switched according to an embodiment of the present application;
FIG. 6 is a flow chart illustrating a further photographing and framing method disclosed in an embodiment of the present application;
FIG. 7 is a block diagram of a photographic viewing device according to an embodiment of the present disclosure;
FIG. 8 is a modular schematic view of another photographic viewing apparatus disclosed in an embodiment of the present application;
fig. 9 is a schematic block diagram of a terminal device disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the application discloses a shooting and framing method and device, terminal equipment and a storage medium, which can reduce shooting and framing difficulty of the terminal equipment and improve shooting definition.
The following detailed description is made with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a shooting and viewing method disclosed in an embodiment of the present application, and includes a terminal device 100 and a target 200 to be shot, where the target 200 to be shot may include a small-sized micro shot object (such as a micro sculpture, a specimen, etc.), and the terminal device 100 may be used to shoot the target 200 to be shot. In order to realize the framing of the object 200 to be photographed before photographing, as shown in fig. 2, the terminal device 100 may include a camera module 10 and a distance measuring device 20, wherein the camera module 10 may include at least a first camera 11 and a second camera 12 which are adjacently disposed, a framing range 12a of the second camera 12 is smaller than a framing range 11a of the first camera 11, and a framing range 12a of the second camera 12 is within the framing range 11a of the first camera 11. It is understood that the above viewing range refers to a Field of View range in which the camera can capture an image when the camera is turned on, and can be measured by the size of the FOV (Field of View). The larger the FOV of the camera is, the larger the view finding range is; conversely, the smaller the FOV of the camera, the smaller its field of view.
The terminal device 100 may include various devices or systems including the camera module 10 and the distance measuring device 20, such as a mobile phone, a tablet Computer, a smart wearable device, a PC (Personal Computer), a PDA (Personal Digital Assistant), and the like. The camera module 10 may include a plurality of cameras with different viewing ranges. For example, the first camera 11 in the camera module 10 may include various conventional cameras, and the second camera 12 may include a camera with a smaller viewing range (such as an ultra-macro camera, a magnifier camera, a microscope camera, etc.), so that the viewing range 12a of the second camera 12 is smaller than the viewing range 11a of the first camera 11; for another example, the first camera 11 may include a camera with a larger viewing range (e.g., a wide-angle lens, a panoramic lens, etc.), and the second camera 12 may include various conventional cameras or a camera with a smaller viewing range than the conventional cameras. Optionally, the second camera 12 may have a higher magnification factor, so that the second camera 12 may be used to shoot the tiny shot object, thereby improving the shooting definition of the tiny shot object. It should be noted that the camera module 10 shown in fig. 2 includes two cameras (i.e., the first camera 11 and the second camera 12), which is merely an example, and in some embodiments, the camera module 10 of the terminal device 100 may also include more than two cameras, which are used together to implement shooting framing.
For example, the distance measuring device 20 may be disposed independently of the camera module 10, and may include, for example, a laser distance measuring module, a structured light distance measuring module, a TOF (Time of Flight) distance measuring module (for example, using bluetooth signals, Wi-Fi signals, etc. to measure distance), an infrared distance sensor, etc.; the camera module 10 may be used directly for distance measurement, for example, the first camera 11 and the second camera 12 may be used for distance measurement by double shooting.
In the embodiment of the present application, the terminal device 100 may obtain a target distance between the distance measuring device 20 and the target 200 to be photographed through the distance measuring device 20; according to the target distance, the terminal device 100 can determine the position and the window size of the second view frame of the second camera 12 within the first view frame of the first camera 11 in the camera module 10 thereof; according to the position and the window size, the terminal device 100 may display the second view frame in the first view frame displayed by the terminal device, where the second view frame is used to display the shooting content corresponding to the second camera 12. By implementing the shooting and framing method, the terminal device 100 can acquire the whole field of view by using the first framing frame of the first camera 11 with a larger framing range through the cooperation of the plurality of cameras with different framing ranges, and display the second framing frame of the second camera 12 with a smaller framing range in the first framing frame, so that the target 200 to be shot can be conveniently found in the whole field of view by using the second framing frame, and the shooting and framing difficulty of the terminal device 100 is reduced; meanwhile, after the target 200 to be shot is found, shooting is performed by switching to the second camera 12, so that the out-of-focus condition which is easy to occur when the conventional camera is close to the target 200 to be shot is avoided, and the shooting definition of the terminal device 100 is improved.
Referring to fig. 3, fig. 3 is a schematic flow chart of a shooting and framing method disclosed in the embodiment of the present application, where the shooting and framing method can be applied to the terminal device, the terminal device can include a camera module and a distance measuring device, the camera module can include at least a first camera and a second camera which are adjacently disposed, where a framing range of the second camera is smaller than a framing range of the first camera, and the framing range of the second camera is within the framing range of the first camera. As shown in fig. 3, the photographing view method may include the steps of:
302. and acquiring the target distance between the camera module and the target to be shot through the distance measuring device.
For example, the object to be photographed may include a small-sized photographed object (such as a miniature sculpture, a specimen, etc.), or may include a small part on a regular-sized photographed object. In order to realize the framing and shooting of the target to be shot, the terminal device may first detect a distance between the target to be shot and the terminal device, where the distance may be represented by a target distance detected by a distance measuring device on the terminal device. Specifically, the target distance may include a distance between the camera module and the target to be photographed. When the terminal equipment detects the target distance, the distance measuring device can detect the distance measuring distance between the distance measuring device and the target to be shot, and then the target distance between the camera module and the target to be shot is obtained through conversion according to the distance measuring distance and the position relation between the distance measuring device and the camera module. It can be understood that, because the camera module and the distance measuring device are hardware fixedly arranged on the terminal equipment, the position relationship between the camera module and the distance measuring device is also fixed, and the camera module and the distance measuring device can be measured in advance and stored on the terminal equipment so as to be called at any time. The camera module and the target distance between the targets to be shot can comprise a first camera and the distance between the targets to be shot, and can also comprise a second camera and the distance between the targets to be shot, and the first camera and the second camera can be equal or unequal.
In an embodiment, when the terminal device obtains the target distance through the ranging device, the terminal device may be manually positioned by a user, so that the ranging device is treating a target to be photographed, at this time, a straight line where the ranging device is located is perpendicular to a plane where the target to be photographed is located, then the distance between the terminal device and the target to be photographed may be detected through the ranging device, and then the target distance between the camera module and the target to be photographed is obtained through conversion, so that the accuracy of the measured target distance may be improved. Optionally, the terminal device may also directly measure the distance between the distance measuring device and the opposite physical plane through the distance measuring device, and then convert to obtain the target distance between the camera module and the target to be photographed.
In another embodiment, the terminal device may also identify the target to be photographed first, and then prompt the user to control the terminal device to move according to the position of the target to be photographed, so that the distance measuring device on the terminal device is directly opposite to the target to be photographed. For example, the terminal device may identify a target to be shot by a default opened camera in a camera module thereof, for example, a current focusing position of the default opened camera may be used as a position where the target to be shot is located, and an object at the current focusing position may be identified as the target to be shot; for another example, the target to be photographed that meets the requirement may be recognized in an image recognition manner from the preview image acquired by the default turned-on camera, where the image recognition process may be performed by a recognition model trained from a large amount of sample data. On this basis, terminal equipment can detect its and wait to shoot the distance between the target through range unit, and the target distance between camera module and the target of waiting to shoot is obtained in the conversion again.
304. And determining the position and the window size of a second view frame of the second camera in the first view frame of the first camera according to the target distance.
In this embodiment of the application, when a camera module of a terminal device is started, a viewing interface corresponding to the camera module can be displayed on a screen of the terminal device. Specifically, the terminal device may default to display a first view frame corresponding to a first camera in the camera module on the view interface, and display a first preview image collected by the first camera in the first view frame. On this basis, after the terminal device obtains the target distance, the position and the window size of a second view frame corresponding to the second camera can be determined in the first view frame in a geometric calculation mode. The second viewfinder is actually determined by the viewfinder range of the second camera, and the second viewfinder is also in the first viewfinder because the viewfinder range of the second camera is smaller than the viewfinder range of the first camera and is in the viewfinder range of the first camera. By determining the position and window size of the second frame, the second frame can be uniquely identified within the first frame.
Exemplarily, since the first camera, the second camera and the distance measuring device in the terminal device are all fixedly disposed, the position relationship among the first camera, the second camera and the distance measuring device is fixed and unchangeable, so that the position of the second view frame in the first view frame can be determined according to the relative position of the first camera and the second camera. The position of the second viewfinder frame may include a center point position of the second viewfinder frame, and may also include a corner point position of the second viewfinder frame. Taking the center point as an example, if the second camera is located at a position x (x is 1 cm, 0.5 cm, etc.) right to the first camera, the center point of the second finder frame may also be located at a position x right to the center point of the first finder frame; if the second camera is located directly above the first camera by y (x is 1 cm, 0.5 cm, etc.), the center point of the second finder frame may be located directly in front of the center point of the first finder frame by y.
In another exemplary embodiment, after the terminal device obtains the target distance between the camera module and the target to be photographed, the window size of the second view frame may be determined by a geometric calculation method according to the target distance and the position relationship among the first camera, the second camera, and the distance measuring device. Specifically, according to the target distance and the position relationship, a first distance between the first camera and the target to be photographed and a second distance between the second camera and the target to be photographed can be respectively determined. Then, according to the first distance and the view range of the first camera (for example, the size of the FOV of the first camera), the shooting content actually corresponding to the first camera can be determined; according to the second distance and the view range of the second camera, the shooting content actually corresponding to the second camera can be determined. Based on the shooting contents respectively corresponding to the first camera and the second camera, the window size of the second view frame in the first view frame can be uniquely and accurately determined. Alternatively, the position of the second finder frame can be uniquely and accurately determined by the above method.
Optionally, when the positional relationship among the first camera, the second camera, and the distance measuring device is ignored, that is, the three are considered to be at the same point, the center point of the first view frame may be directly used as the center point of the second view frame, and then the window size of the second view frame may be determined in a geometric calculation manner, so that the second view frame may be uniquely determined in the first view frame.
306. And displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, wherein the second viewing frame is used for displaying the shooting content corresponding to the second camera.
In the embodiment of the application, the terminal device can display the second viewing frame corresponding to the second camera in the first viewing frame displayed on the viewing interface according to the position and the window size of the second viewing frame, and the second viewing frame can frame the shooting content corresponding to the second camera in the first preview image in the first viewing frame, so that the second viewing frame can be conveniently utilized to position the micro shot object to be shot, and the viewing difficulty of the micro shot object is reduced. Further, when the terminal device is switched from the first camera to the second camera to preview and shoot, the shooting content can be shot through the second camera, so that the target to be shot can be shot through the second camera with a relatively small view range and a large magnification, and the shooting definition of the tiny shot object is improved.
Therefore, by implementing the shooting and framing method described in the above embodiment, the overall field of view can be obtained by using the first framing frame of the first camera with a larger framing range through the cooperation of the plurality of cameras with different framing ranges, and the second framing frame of the second camera with a smaller framing range is displayed in the first framing frame, so that the target to be shot can be conveniently found in the overall field of view by using the second framing frame, and the shooting and framing difficulty of the terminal device is reduced; simultaneously, after finding the target of waiting to shoot, shoot through switching to the second camera, also avoided utilizing conventional camera to press close to the out-of-focus condition that easily appears when waiting to shoot the target, be favorable to promoting terminal equipment's shooting definition.
Referring to fig. 4, fig. 4 is a schematic flow chart of another shooting and framing method disclosed in the embodiment of the present application, where the shooting and framing method can be applied to the terminal device, the terminal device can include a camera module and a distance measuring device, the camera module can include at least a first camera and a second camera which are adjacently disposed, where a framing range of the second camera is smaller than a framing range of the first camera, and the framing range of the second camera is within the framing range of the first camera. As shown in fig. 4, the photographing view method may include the steps of:
402. and acquiring the target distance between the camera module and the target to be shot through the distance measuring device.
404. And determining the position and the window size of a second view frame of the second camera in the first view frame of the first camera according to the target distance.
406. And displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, wherein the second viewing frame is used for displaying the shooting content corresponding to the second camera.
408. And when the target distance is detected to be smaller than the shooting distance threshold, switching a first preview image in the displayed first view frame into a second preview image corresponding to the second view frame, wherein the first preview image is a preview image acquired by the first camera, and the second preview image is a preview image acquired by the second camera.
For example, please refer to fig. 5A and fig. 5B together, where fig. 5A is a schematic diagram before a terminal device switches a view interface, and fig. 5B is a schematic diagram after the view interface is switched. As shown in fig. 5A, before switching the viewing interface, the terminal device 100 may display a first preview image 51a within the first viewing frame 51 on the viewing interface 50, where the first preview image 51a is a preview image captured by the first camera. After the terminal device 100 determines the position and the window size of the second finder frame 52, the second finder frame 52 may be displayed in the first finder frame 51 according to the position and the window size, and the second finder frame 52 frames the shot content 51b corresponding to the second camera in the first preview image 51a, that is, the shot content 51b belongs to a part of the first preview image 51 a.
When the terminal device 100 detects that the target distance between the camera module and the target to be photographed is smaller than the photographing distance threshold (such as 1 cm, 1 mm, etc.) through the distance measuring device, the second camera can be started to perform image acquisition, and then the first preview image 51a in the first view frame 51 displayed on the view interface can be switched to the second preview image 52a acquired by the second camera. The shot content corresponding to the second preview image 52a is the same as the shot content 51b framed by the second view frame 52, but because the second preview image 52a is collected by the second camera, the definition of the second preview image is higher than that of the shot content 51b framed by the second view frame 52, which is beneficial to improving the shooting definition of the tiny shot in the subsequent shooting process.
In an embodiment, when detecting that the target distance is smaller than the shooting distance threshold and the displayed first preview image in the first view frame meets the out-of-focus condition, the terminal device may switch the first preview image in the first view frame to the second preview image corresponding to the second view frame. For example, the terminal device may detect an attribute parameter (such as resolution, focus position, lens blur parameter, and the like) of the first preview image in real time, determine whether the attribute parameter meets a preset out-of-focus condition, and when the attribute parameter meets the out-of-focus condition and it has been detected that the target distance is smaller than a shooting distance threshold, may perform an operation of switching the first preview image in the first view frame to a second preview image corresponding to the second view frame. For example, the terminal device may detect the resolution of the first preview image in real time, and when the resolution of the first preview image is smaller than the out-of-focus resolution threshold, may further detect a target distance between the camera module and the target to be photographed by using the distance measuring device, and execute the operation of switching the preview image when the target distance is smaller than the photographing distance threshold. Optionally, the terminal device may also only determine whether the attribute parameter of the first preview image meets the out-of-focus condition, and execute the operation of switching the preview images when the attribute parameter meets the out-of-focus condition, thereby reducing the frequency of use of the distance measuring device and saving the power consumption of the terminal device. By implementing the method, the terminal equipment can realize framing and shooting of the close-distance micro shot object by opening the second camera when the first camera cannot normally collect images.
In another embodiment, the terminal device may also identify the target to be photographed according to the first preview image in the first view finder; on this basis, when the terminal device detects that the target distance is smaller than the shooting distance threshold value and simultaneously detects that the target to be shot is in the second view frame, the first preview image in the first view frame is switched to the second preview image corresponding to the second view frame. Illustratively, the terminal device may identify a target to be photographed that meets the photographing requirement in the first preview image within the first finder frame by an image recognition technique, and track the position of the target to be photographed. When the user operates the terminal device to gradually approach the target to be shot so that the target distance from the target to be shot is smaller than the shooting distance threshold, if it is detected that the target to be shot is in the second view finder frame, that is, in the view finding range of the second camera, the operation of switching the preview images can be executed, and the second preview image containing the target to be shot is collected by the second camera so as to finish the view finding and subsequent shooting of the target to be shot.
410. And controlling the second camera to shoot a second preview image corresponding to the second viewing frame.
Specifically, terminal equipment shoots it through the second camera to gather the second preview image, can utilize the relatively less, the great characteristics of magnification of second camera range of finding a view, realizes shooting after the target is waited to shoot in accurate framing location to promote the shooting definition to small shooting thing.
Therefore, by implementing the shooting and framing method described in the above embodiment, the first preview image acquired by the first camera can be analyzed by setting multiple conditions, so that when the first camera cannot normally acquire an image, the second camera can be turned on, and the framing and the shooting of a small shot object in a short distance can be conveniently realized by utilizing the characteristics of a relatively small framing range and a large magnification of the second camera. Through the cooperation of many cameras, reduced the degree of difficulty of finding a view to small shooting thing, be favorable to promoting the shooting definition to small shooting thing simultaneously.
Referring to fig. 6, fig. 6 is a schematic flowchart of another shooting and framing method disclosed in the embodiment of the present application, where the shooting and framing method can be applied to the terminal device, the terminal device can include a camera module and a distance measuring device, the camera module can include at least a first camera and a second camera which are adjacently disposed, where a framing range of the second camera is smaller than a framing range of the first camera, and the framing range of the second camera is within the framing range of the first camera. As shown in fig. 6, the photographing view method may include the steps of:
602. and acquiring the target distance between the camera module and the target to be shot through the distance measuring device.
Step 602 is similar to step 302 described above, and is not described here again.
604. And acquiring the relative position relation among the first camera, the second camera and the distance measuring device.
606. And determining the position of a second view frame of the second camera in the first view frame of the first camera according to the relative position relation.
608. And determining the window size of the second view frame according to the position of the second view frame and the target distance.
As an alternative implementation manner, before determining the window size of the second view frame, the terminal device may further detect an inclination angle between a shooting plane where the first camera and the second camera are located and a target plane where the target to be shot is located, and then may determine the window size of the second view frame according to the obtained position of the second view frame, the inclination angle, and the target distance. For example, when the shooting plane and the target plane have a certain inclination angle (i.e. the included angle between the shooting plane and the target plane is greater than 0 °), due to the inclination angle, even if the first camera and the second camera are in the same horizontal plane, the distance between the first camera and the second camera and the target plane where the object to be shot is located may be different. Specifically, if the inclination angle is θ and the distance between the first camera and the second camera is l, the distance between the first camera and the second camera and the target plane always has a difference l · sin θ. When the second camera is farther away from the target plane, the larger the difference is, the larger the window size of the second viewing frame is; when the second camera is closer to the target plane, the larger the difference is, the smaller the window size of the second finder frame is. By implementing the method, when the terminal equipment is not over against the target to be shot, the second view-finding frame of the second camera can be corrected according to the inclination angle of the plane where the target to be shot is located, so that the positioning error possibly brought by the actual shooting environment is reduced, the view-finding accuracy of the micro shot object is improved, and the view-finding difficulty is further reduced.
610. And displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, wherein the second viewing frame is used for displaying the shooting content corresponding to the second camera.
612. And when the target distance is detected to be smaller than the shooting distance threshold, switching a first preview image in the displayed first view frame into a second preview image corresponding to the second view frame, wherein the first preview image is a preview image acquired by the first camera, and the second preview image is a preview image acquired by the second camera.
614. And controlling the second camera to shoot a second preview image corresponding to the second viewing frame.
As an optional implementation manner, after displaying the second view frame, the terminal device may further obtain a partial preview image in the second view frame, and magnify the partial preview image according to a preview magnification to obtain a preview magnified image, where the preview magnification may be smaller than the magnification of the second camera and larger than 1. Illustratively, the magnification of the second camera may depend on its type, e.g. the camera may be at least about 100 times, and the preview magnification may be 5 times, 10 times, etc. In addition, the terminal device may display the preview enlarged image, for example, the preview enlarged image may be displayed in an overlapping manner on the second finder frame, or the preview enlarged image may be displayed around the second finder frame. By implementing the method, before the terminal device actually switches the viewing interface of the terminal device to display the second preview image acquired by the second camera, the user can conveniently position the target to be shot by amplifying the local first preview image in the second viewing frame, so that the viewing difficulty of the micro shot object can be further reduced, and the convenience of viewing and shooting by using the terminal device is improved.
Therefore, by implementing the shooting and viewing method described in the above embodiment, the user can conveniently and quickly locate the target to be shot by enlarging the local first preview image in the second viewing frame, so that the viewing difficulty for a small shot can be reduced, and the convenience of using the terminal device for viewing and shooting is improved. Through the cooperation of many cameras, further reduced the degree of difficulty of finding a view to small shooting thing, be favorable to promoting the shooting definition to small shooting thing simultaneously.
Please refer to fig. 7, fig. 7 is a schematic view illustrating a shooting view finder according to an embodiment of the present disclosure, where the shooting view finder may be applied to the terminal device, the terminal device may include a camera module and a distance measuring device, the camera module may include at least a first camera and a second camera which are adjacently disposed, where a view range of the second camera is smaller than a view range of the first camera, and the view range of the second camera is within the view range of the first camera. As shown in fig. 7, the shooting view device may include a distance acquisition unit 701, a view determination unit 702, and a display unit 703, in which:
a distance obtaining unit 701, configured to obtain a target distance between the camera module and a target to be photographed through the distance measuring device;
a framing determination unit 702, configured to determine, according to the target distance, a position and a window size of a second frame of the second camera within the first frame of the first camera;
the display unit 703 is configured to display the second view frame in the displayed first view frame according to the position and the window size, where the second view frame is used to display the shooting content corresponding to the second camera.
It can be seen that, by adopting the shooting view finding device described in the above embodiment, the whole field of view can be obtained by using the first view finding frame of the first camera with a larger view finding range through the cooperation of the plurality of cameras with different view finding ranges, and the second view finding frame of the second camera with a smaller view finding range is displayed in the first view finding frame, so that the target to be shot can be conveniently found in the whole field of view by using the second view finding frame, and the shooting view finding difficulty of the terminal device is reduced; simultaneously, after finding the target of waiting to shoot, shoot through switching to the second camera, also avoided utilizing conventional camera to press close to the out-of-focus condition that easily appears when waiting to shoot the target, be favorable to promoting terminal equipment's shooting definition.
Referring to fig. 8, fig. 8 is a schematic view illustrating another shooting view finder module disclosed in the embodiment of the present application, where the shooting view finder module can be applied to the terminal device, the terminal device can include a camera module and a distance measuring device, the camera module can include at least a first camera and a second camera which are adjacently disposed, where a view range of the second camera is smaller than a view range of the first camera, and the view range of the second camera is within the view range of the first camera. The shooting finder shown in fig. 8 is optimized from the shooting finder shown in fig. 7. Compared to the shooting viewfinder shown in fig. 7, the shooting viewfinder shown in fig. 8 may further include a control unit 704, in which:
the display unit 703 may be further configured to, when it is detected that the target distance is smaller than the shooting distance threshold, switch the displayed first preview image in the first view frame to a second preview image corresponding to a second view frame, where the second preview image is a preview image acquired by a second camera;
a control unit 704, configured to control the second camera to capture a second preview image corresponding to the second viewfinder frame.
It can be seen that, the shooting view finding device described by the embodiment can utilize the characteristics of relatively small view finding range and large magnification of the second camera to realize shooting after a target to be shot is accurately located in view finding, thereby improving the shooting definition of a tiny shot object.
In an embodiment, the display unit 703 may be specifically configured to switch the first preview image in the first view frame to the second preview image corresponding to the second view frame when it is detected that the target distance is smaller than the shooting distance threshold and the displayed first preview image in the first view frame meets the out-of-focus condition.
In an embodiment, the shooting view finding apparatus shown in fig. 8 may further include an identifying unit 705, where the identifying unit 705 may be configured to identify the object to be shot according to the first preview image in the first view frame before the displaying unit 703 switches the first preview image in the first view frame to the second preview image corresponding to the second view frame;
the display unit 703 may be further configured to switch the first preview image in the first view frame to a second preview image corresponding to the second view frame when it is detected that the target distance is smaller than the shooting distance threshold and the target to be shot is located in the second view frame.
It can be seen that, adopting the shooting view finding device described in the above embodiment, the first preview image collected by the first camera can be analyzed by setting multiple conditions, so that when the first camera cannot normally collect images, the second camera is opened, and the view finding and shooting of a close-range micro shot object can be conveniently realized.
In an embodiment, the above-mentioned framing determination unit 702 may include a position acquisition subunit, a position determination subunit, and a window size determination subunit, which are not shown in the drawing, wherein:
the position acquisition subunit is used for acquiring the relative position relationship among the first camera, the second camera and the distance measuring device;
the position determining subunit is used for determining the position of a second view frame of the second camera in the first view frame of the first camera according to the relative position relationship;
and the window size determining subunit is used for determining the window size of the second viewfinder according to the position of the second viewfinder and the target distance.
It can be seen that with the shooting viewfinder apparatus described in the above embodiment, the position of the second viewfinder within the first viewfinder and the window size can be uniquely and accurately determined by means of geometric calculation, so that the second viewfinder can be uniquely determined within the first viewfinder.
In an embodiment, the framing determination unit 702 may include an angle detection subunit, not shown in the drawings, where the angle detection subunit may be configured to detect an inclination angle between a shooting plane in which the first camera and the second camera are located and a target plane in which the target to be shot is located;
the window size determining subunit may be specifically configured to determine the window size of the second finder frame according to the position of the second finder frame, the tilt angle, and the target distance.
It can be seen that, by adopting the shooting view finding device described in the above embodiment, when the terminal device is not facing the target to be shot, the second view finding frame of the second camera can be corrected according to the inclination angle of the plane where the target to be shot is located, so that the positioning error possibly brought by the actual shooting environment is reduced, the view finding accuracy for the tiny shot object is improved, and the view finding difficulty is further reduced.
In one embodiment, the shooting view finder shown in fig. 8 may further include a preview image acquiring unit 706, a preview enlarging unit 707, wherein:
a preview image acquiring unit 706 configured to acquire a partial preview image in the second finder frame after the display unit 703 displays the second finder frame in the displayed first finder frame according to the position and the window size;
a preview magnification unit 707 configured to magnify the partial preview image according to a preview magnification factor, so as to obtain a preview magnified image, where the preview magnification factor is smaller than the magnification factor of the second camera and larger than 1;
the display unit 703 may be further configured to display the preview enlarged image.
It is thus clear that the shooting view finder described by adopting the above embodiment can facilitate the user to quickly locate the target to be shot by magnifying the local first preview image in the second view finder frame, thereby reducing the view finding difficulty for the small shot object and improving the convenience of using the terminal device to find a view and shoot.
Referring to fig. 9, fig. 9 is a schematic block diagram of a terminal device according to an embodiment of the present disclosure. As shown in fig. 9, the terminal device may include:
a memory 901 in which executable program code is stored;
a processor 902 coupled to a memory 901;
the processor 902 calls the executable program code stored in the memory 901, and may execute all or part of the steps in any one of the shooting and framing methods described in the above embodiments.
Further, the present application further discloses a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program, when executed by a processor, causes the processor to perform all or part of the steps of any one of the shot framing methods described in the above embodiments.
In addition, the embodiment of the present application further discloses a computer program product, which when running on a computer, enables the computer to execute all or part of the steps in any one of the shooting framing methods described in the above embodiments.
It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by hardware instructions of a program, and the program may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM), or other Memory, such as a magnetic disk, or a combination thereof, A tape memory, or any other medium readable by a computer that can be used to carry or store data.
The above detailed descriptions of the shooting and framing method and apparatus, the terminal device, and the storage medium disclosed in the embodiments of the present application have been provided, and specific examples are applied herein to explain the principles and embodiments of the present application, and the descriptions of the above embodiments are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The shooting and framing method is characterized by being applied to terminal equipment, wherein the terminal equipment comprises a camera module and a distance measuring device, the camera module at least comprises a first camera and a second camera which are arranged adjacently, the framing range of the second camera is smaller than that of the first camera, and the framing range of the second camera is within the framing range of the first camera, and the method comprises the following steps:
acquiring a target distance between the camera module and a target to be shot through the distance measuring device;
determining the position and the window size of a second viewing frame of the second camera in the first viewing frame of the first camera according to the target distance;
and displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, wherein the second viewing frame is used for displaying shooting contents corresponding to the second camera.
2. The method of claim 1, wherein after the displaying the second frame within the displayed first frame according to the position and window size, the method further comprises:
when the target distance is detected to be smaller than a shooting distance threshold value, switching a displayed first preview image in the first view frame into a second preview image corresponding to the second view frame, wherein the first preview image is a preview image acquired by the first camera, and the second preview image is a preview image acquired by the second camera;
and controlling the second camera to shoot the second preview image corresponding to the second viewing frame.
3. The method according to claim 2, wherein switching the displayed first preview image in the first view frame to a second preview image corresponding to the second view frame when detecting that the target distance is smaller than a shooting distance threshold comprises:
and when the target distance is detected to be smaller than the shooting distance threshold value and the displayed first preview image in the first viewing frame meets the out-of-focus condition, switching the first preview image in the first viewing frame into a second preview image corresponding to the second viewing frame.
4. The method according to claim 2, wherein before the switching the displayed first preview image in the first view frame to the second preview image corresponding to the second view frame when the object distance is detected to be less than the shooting distance threshold, the method further comprises:
identifying the target to be shot according to a first preview image in the first viewing frame;
when it is detected that the target distance is smaller than the shooting distance threshold, switching the displayed first preview image in the first view frame to a second preview image corresponding to the second view frame, including:
and when the target distance is detected to be smaller than the shooting distance threshold value and the target to be shot is detected to be in the second viewing frame, switching the first preview image in the first viewing frame into a second preview image corresponding to the second viewing frame.
5. The method of any of claims 1 to 4, wherein determining a position and a window size of a second frame of the second camera within the first frame of the first camera according to the target distance comprises:
acquiring a relative position relationship among the first camera, the second camera and the distance measuring device;
determining the position of a second viewing frame of the second camera in the first viewing frame of the first camera according to the relative position relation;
and determining the window size of the second viewing frame according to the position of the second viewing frame and the target distance.
6. The method of claim 5, wherein prior to said determining a window size of the second frame based on the position of the second frame and the target distance, the method further comprises:
detecting inclination angles between shooting planes where the first camera and the second camera are located and a target plane where the target to be shot is located;
the determining the window size of the second view frame according to the position of the second view frame and the target distance includes:
and determining the window size of the second viewing frame according to the position of the second viewing frame, the inclination angle and the target distance.
7. The method according to any one of claims 1 to 4, wherein after said displaying the second frame within the displayed first frame according to the position and window size, the method further comprises:
acquiring a local preview image in the second viewing frame;
amplifying the partial preview image according to a preview amplification factor to obtain a preview amplified image, wherein the preview amplification factor is smaller than the amplification factor of the second camera and is larger than 1;
and displaying the preview enlarged image.
8. The utility model provides a shoot viewing device, its characterized in that is applied to terminal equipment, terminal equipment includes camera module and range unit, camera module includes first camera and the second camera of adjacent setting at least, the scope of finding a view of second camera is less than the scope of finding a view of first camera, just the scope of finding a view of second camera is in the scope of finding a view of first camera, shoot viewing device includes:
the distance acquisition unit is used for acquiring a target distance between the camera module and a target to be shot through the distance measuring device;
a framing determining unit, configured to determine, according to the target distance, a position and a window size of a second framing frame of the second camera in the first framing frame of the first camera;
and the display unit is used for displaying the second viewing frame in the displayed first viewing frame according to the position and the window size, and the second viewing frame is used for displaying shooting contents corresponding to the second camera.
9. A terminal device, comprising:
a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to perform the method of any of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the method of any one of claims 1 to 7.
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