CN111885307B

CN111885307B - Depth-of-field shooting method and device and computer readable storage medium

Info

Publication number: CN111885307B
Application number: CN202010753895.1A
Authority: CN
Inventors: 徐爱辉; 倪飞
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2022-07-22
Anticipated expiration: 2040-07-30
Also published as: CN111885307A

Abstract

The invention discloses a depth of field shooting method, a device and a computer readable storage medium, wherein the method comprises the following steps: monitoring and extracting at least one shooting object in a preview image in real time, and acquiring a selected instruction of the shooting object within preset selected time; then, selecting a target object in the shot objects according to the selected instruction, and detecting the depth of field range of the target object; and finally, determining a corresponding shooting component according to the range interval where the depth of field range is located, and executing the depth of field shooting operation of the target object through the shooting component. The humanized field depth shooting scheme is realized, the field depth blurring effect of field depth shooting is improved, the multi-field depth shooting scenes are enriched, the user operation is simplified, the multi-camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

Description

Depth-of-field shooting method and device and computer readable storage medium

Technical Field

The present invention relates to the field of mobile communications, and in particular, to a depth-of-field shooting method, device, and computer-readable storage medium.

Background

In the prior art, with the rapid development of an intelligent terminal, the intelligent terminal starts to be equipped with a plurality of cameras in order to meet the diversified shooting requirements of a user, for example, the user realizes field depth recognition and field depth shooting through two cameras of an intelligent terminal device. Related applications utilizing three-dimensional reconstruction and three-dimensional information have not been applied to mobile terminals for a while, and related technologies have not yet matured.

Therefore, it can be seen that the background blurring shooting requires that the shot object is within a close range from the camera to obtain an image with a certain depth-of-field blurring effect, and if the distance exceeds the range, the shooting effect may be unnatural.

Disclosure of Invention

In order to solve the technical defects in the prior art, the invention provides a depth-of-field shooting method, which comprises the following steps:

monitoring and extracting at least one shooting object in a preview image in real time, and acquiring a selected instruction of the shooting object within preset selected time;

selecting a target object from the shot objects according to the selected instruction, and detecting the depth of field range of the target object;

and determining a corresponding shooting component according to the range interval of the depth of field range, and executing the depth of field shooting operation of the target object through the shooting component.

Optionally, the monitoring and extracting at least one photographic subject in the preview image in real time, and acquiring a selected instruction of the photographic subject within a preset selected time includes:

analyzing the preview image, and determining a subject in a specific position area of a view frame as the shooting subject;

presetting selected time related to the attributes of the shot objects;

and marking the shooting object in the selected time, and receiving the selected instruction in the position area where the mark is positioned.

Optionally, the selecting a target object from the photographic objects according to the selected instruction, and detecting a depth of field range in which the target object is located includes:

locking the target object according to the selected instruction;

and in the shooting preview stage, detecting the depth of field range of the target object in real time through a preset shooting assembly.

Optionally, the determining a corresponding shooting component according to a range section where the depth-of-field range is located, and executing a depth-of-field shooting operation of the target object through the shooting component includes:

presetting the corresponding relation between the shooting component and shooting environment parameters, shooting object attributes and shooting backgrounds;

and determining the corresponding current shooting component to be selected according to the corresponding relation and the range interval in which the depth of field range is located.

Optionally, the determining a corresponding shooting component according to a range section where the depth-of-field range is located, and executing a depth-of-field shooting operation of the target object through the shooting component further includes:

monitoring a range interval where a current depth of field range is located in real time in the process of executing the depth of field shooting operation of the target object through the shooting component;

and adjusting the shooting assembly in real time according to the range interval of the current depth of field.

The present invention also proposes a depth-of-field shooting device comprising a memory, a processor and a computer program stored on said memory and executable on said processor, said computer program realizing, when executed by said processor:

and determining a corresponding shooting component according to the range interval of the depth-of-field range, and executing the depth-of-field shooting operation of the target object through the shooting component.

Optionally, the computer program when executed by the processor implements:

presetting selected time related to the attributes of the shot objects;

Optionally, the computer program when executed by the processor implements:

locking the target object according to the selected instruction;

in the shooting preview stage, the depth of field range of the target object is detected in real time through a preset shooting assembly.

Optionally, the computer program when executed by the processor implements:

presetting the corresponding relation between the shooting component and shooting environment parameters, shooting object attributes and shooting background;

determining a corresponding current shooting component to be selected according to the corresponding relation and the range interval in which the depth of field range is located;

monitoring the range interval of the current depth of field range in real time in the process of executing the depth of field shooting operation of the target object through the shooting component;

The present invention further proposes a computer readable storage medium having stored thereon a depth of field shooting program, which when executed by a processor implements the steps of the depth of field shooting method as defined in any one of the above.

By implementing the depth-of-field shooting method, the equipment and the computer readable storage medium, at least one shooting object in a preview image is monitored and extracted in real time, and a selected instruction of the shooting object is obtained within a preset selected time; then, selecting a target object in the shot object according to the selected instruction, and detecting the depth of field range of the target object; and finally, determining a corresponding shooting component according to the range interval where the depth of field range is located, and executing the depth of field shooting operation of the target object through the shooting component. The humanized field depth shooting scheme is realized, the field depth blurring effect of field depth shooting is improved, the multi-field depth shooting scenes are enriched, the user operation is simplified, the multi-camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

fig. 1 is a schematic diagram of a hardware structure of a mobile terminal according to the present invention;

fig. 2 is a communication network system architecture diagram provided by an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a depth of field shooting method according to a first embodiment of the present invention;

FIG. 4 is a flowchart illustrating a depth of field shooting method according to a second embodiment of the present invention;

FIG. 5 is a flowchart illustrating a depth of field shooting method according to a third embodiment of the present invention;

FIG. 6 is a flowchart illustrating a depth of field shooting method according to a fourth embodiment of the present invention;

fig. 7 is a flowchart of a depth-of-field shooting method according to a fifth embodiment of the present invention.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include mobile terminals such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and fixed terminals such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division multiplexing-Long Term Evolution), and TDD-LTE (Time Division multiplexing-Long Term Evolution), etc.

WiFi belongs to a short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send emails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and can be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing gestures of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometers and taps), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, the description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation on or near the touch panel, the touch panel is transmitted to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module and the like, which will not be described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide some registers to manage functions such as home location register (not shown) and holds some user-specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems, and the like.

Based on the hardware structure of the mobile terminal and the communication network system, the embodiments of the method of the invention are provided.

Example one

Fig. 3 is a flowchart of a depth-of-field shooting method according to a first embodiment of the present invention. A depth of field shooting method, the method comprising:

s1, monitoring and extracting at least one shooting object in the preview image in real time, and acquiring a selected instruction of the shooting object within preset selected time;

s2, selecting a target object from the shot objects according to the selected instruction, and detecting the depth of field range of the target object;

and S3, determining a corresponding shooting component according to the range section where the depth range is located, and executing the depth shooting operation of the target object through the shooting component.

In this embodiment, first, at least one photographic object in a preview image is monitored and extracted in real time, and a selection instruction of the photographic object is obtained within a preset selection time; then, selecting a target object in the shot objects according to the selected instruction, and detecting the depth of field range of the target object; and finally, determining a corresponding shooting component according to the range interval where the depth of field range is located, and executing the depth of field shooting operation of the target object through the shooting component.

Specifically, in this embodiment, first, at least one photographic object in the preview image is monitored and extracted in real time, and a selection instruction of the photographic object is obtained within a preset selection time. It should be noted that the present solution is suitable for performing depth-of-field shooting on one shooting object, or performing depth-of-field shooting on multiple shooting objects in a smaller depth-of-field range, optionally performing contour recognition and frame selection or feature recognition and marking on the multiple viewing objects in a preview image, and then determining an object to be shot as the shooting object of the present embodiment according to the selection of a user. Optionally, the depth-of-field stage (or depth-of-field range) where different objects are located is quickly marked by different framing graphics or different marking styles, specifically, the framing graphics include rectangles, stars, triangles and the like, and the marking styles include marking colors, marking patterns, marking positions, marking blinking manners and the like. Optionally, the frame selection graph is determined according to the attribute of the object, and the marking pattern is determined according to the depth stage of the object, that is, each object in the preview image is marked in a manner of combining the frame selection graph and the marking pattern. Optionally, in a depth of field range in which all cameras of the terminal device can image with an obvious depth of field effect, marking each object in the preview image by combining the frame selection graph and the marking style.

Specifically, in this embodiment, after a selected instruction of the photographic object is acquired within a preset selected time, a target object is selected from the photographic object according to the selected instruction, and a depth of field range in which the target object is located is detected. The method comprises the steps that a camera which is initially configured detects the depth of field range of a target object within preset detection time, and if the depth of field range is detected to require a telephoto lens to shoot a better depth of field effect, the camera is switched to a binocular telephoto lens within the detection time to shoot the target object. Optionally, if the depth of field range in which the target object is located is not detected by the initially configured camera in the preset detection time, switching to a binocular telephoto lens after the detection time, and performing subsequent shooting operation on the target object by using the binocular telephoto lens without detecting the depth of field range in which the target object is located in the preset detection time.

Specifically, in this embodiment, a corresponding shooting component is determined according to a range interval in which the depth-of-field range is located, and the depth-of-field shooting operation of the target object is executed by the shooting component. For example, the distance Z between the subject p and the imaging lens may be calculated for the subject p captured through the binocular ordinary imaging lens OL and the imaging lens OR, and it is understood that the factor affecting the distance Z: (1) distance T between the focal length f (2), the imaging lens OL, and the imaging lens OR; (3) and the parallax d of the point where the shooting object p is located on the binocular lens is xl-xr. From this, it can be seen that if the object p is photographed by the imaging lens with binocular telephoto at the same position, for example, a 3-times telephoto lens is used, the focal length of which is f _1, and f _1 is 3 × f. That is, it is possible to obtain: the distance between the p point and the lens is still Z, while T is kept constant, so d _1 is 3 × d, and d _1 is the imaging parallax of the p point on the binocular telephoto. Thus, d _1 — 3 × d indicates that the same point d _1 is three times d. That is, the image taken by the imaging lens for which the binocular telephoto is determined can be calculated to have a depth (distance) at least 3 times as large as the depth calculated by the current general lens.

The method has the advantages that at least one shooting object in the preview image is monitored and extracted in real time, and the selected instruction of the shooting object is obtained within the preset selected time; then, selecting a target object in the shot object according to the selected instruction, and detecting the depth of field range of the target object; and finally, determining a corresponding shooting component according to the range interval where the depth of field range is located, and executing the depth of field shooting operation of the target object through the shooting component. The humanized field depth shooting scheme is realized, the field depth blurring effect of field depth shooting is improved, the multi-field depth shooting scenes are enriched, the user operation is simplified, the multi-camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

Example two

Fig. 4 is a flowchart of a second embodiment of the depth-of-field shooting method according to the present invention, where the monitoring and extracting at least one shooting object in a preview image in real time and acquiring a selected instruction of the shooting object within a preset selected time includes:

s11, analyzing the preview image, and determining the object in the specific position area of the viewfinder frame as the shooting object;

s12, presetting the selected time related to the shooting object attribute;

and S13, marking the shooting object in the selected time, and receiving the selected instruction in the marked position area.

In the present embodiment, first, the preview image is analyzed, and a subject in a specific position area of the finder frame is determined as the photographic subject; then, presetting selected time related to the attributes of the shot objects; finally, marking the shooting object in the selected time, and receiving the selected instruction in the position area where the mark is positioned.

Optionally, a selected time related to the shooting object attribute is preset, where the object attribute includes an object type, a ratio of the object to the preview image, details of the object, and contour features of the object, and the selected time corresponding to the shooting object is determined according to the object attribute, for example, if the ratio of the object to the preview image is small, or the details of the object and the contour features of the object are weak, the selected time is correspondingly increased.

Optionally, the photographic subject is marked during the selected time, and the selected instruction is received in a position area where the mark is located. Specifically, as described in the above example, alternatively, in the preview image, contour recognition and framing or feature recognition and marking are performed on a plurality of viewing subjects, and then, a subject to be photographed is determined as the photographing subject of the present embodiment according to the selection of the user. Optionally, the depth-of-field stage (or depth-of-field range) where different objects are located is quickly marked by different framing graphics or different marking styles, specifically, the framing graphics include rectangles, stars, triangles and the like, and the marking styles include marking colors, marking patterns, marking positions, marking blinking manners and the like. Optionally, the framing graphics are determined according to the attributes of the objects, and the marking patterns are determined according to the depth stage of the objects, that is, each object in the preview image is marked in a manner of combining the framing graphics and the marking patterns. Optionally, in a depth of field range in which all cameras of the terminal device can image with an obvious depth of field effect, marking each object in the preview image by combining the frame selection graph and the marking style.

The embodiment has the advantages that the object in the specific position area of the viewfinder frame is determined as the shooting object by analyzing the preview image; then, presetting selected time related to the attributes of the shot objects; finally, marking the shooting object in the selected time, and receiving the selected instruction in the position area where the mark is positioned. The humanized field depth shooting scheme is realized, a camera switching basis and a condition judgment basis are provided for subsequent field depth shooting, the field depth blurring effect of the field depth shooting is improved, multiple field depth shooting scenes are enriched, the user operation is simplified, the multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

EXAMPLE III

Fig. 5 is a flowchart of a third embodiment of the depth-of-field shooting method according to the present invention, where the selecting a target object from the shot objects according to the selected instruction and detecting the depth-of-field range in which the target object is located includes:

s21, locking the target object according to the selected instruction;

and S22, in the shooting preview stage, detecting the depth of field range of the target object in real time through a preset shooting component.

In this embodiment, first, the target object is locked according to the selected instruction; and then, in a shooting preview stage, detecting the depth of field range of the target object in real time through a preset shooting assembly.

Optionally, the selected instruction is generated through operation modes such as clicking, touch control, double clicking and the like, and the target object is locked according to the selected instruction;

optionally, in a shooting preview stage, detecting the depth of field range of the target object in real time through a preset or initial shooting component;

optionally, in the shooting preview stage, if the duty ratio change rate of the shooting object exceeds a preset value, the preset or initial shooting component is switched to other binocular shooting components to detect the depth of field range of the target object in real time.

The method has the advantages that the target object is locked through the selected instruction; and then, in a shooting preview stage, detecting the depth of field range of the target object in real time through a preset shooting assembly. The humanized field depth shooting scheme is realized, a camera switching basis and a condition judgment basis are provided for subsequent field depth shooting, the field depth blurring effect of the field depth shooting is improved, multiple field depth shooting scenes are enriched, the user operation is simplified, multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

Example four

Fig. 6 is a flowchart of a fourth embodiment of the depth-of-field shooting method according to the present invention, where based on the foregoing embodiment, the determining a corresponding shooting component according to a range interval where the depth-of-field range is located, and executing a depth-of-field shooting operation on the target object by using the shooting component includes:

s31, presetting the corresponding relation between the shooting component and the shooting environment parameter, the shooting object attribute and the shooting background;

and S32, determining the corresponding current shooting component to be selected according to the corresponding relation and the range interval where the depth of field range is located.

In this embodiment, first, a corresponding relationship between the shooting component and the shooting environment parameter, the shooting object attribute, and the shooting background is preset; and then, determining the corresponding shooting component to be selected currently according to the corresponding relation and the range interval in which the depth of field range is located.

Optionally, a corresponding relationship between the shooting component and shooting environment parameters, shooting object attributes and a shooting background is preset, wherein the shooting environment parameters include an illumination environment of the shooting object, and image characteristics of a foreground and a background of the shooting object, the shooting object attributes include an object type, a proportion of the object to a preview image, details and contour characteristics of the object, and the shooting background includes a complexity of the shooting background.

Optionally, the corresponding current shooting component to be selected is determined according to the corresponding relationship and the range interval in which the depth of field range is located, and the corresponding current shooting component to be selected is determined by combining the range interval in which the depth of field range is located and one or more reference factors of the shooting environment parameters, the shooting object attributes and the shooting background.

The method has the advantages that the corresponding relation between the shooting component and the shooting environment parameter, the shooting object attribute and the shooting background is preset; and then, determining the corresponding shooting component to be selected currently according to the corresponding relation and the range interval where the depth of field range is located. The humanized field depth shooting scheme is realized, a camera switching basis and a condition judgment basis are provided for subsequent field depth shooting, the field depth blurring effect of the field depth shooting is improved, multiple field depth shooting scenes are enriched, the user operation is simplified, multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

EXAMPLE five

Fig. 7 is a flowchart of a fifth embodiment of the depth-of-field shooting method according to the present invention, where based on the foregoing embodiment, the determining a corresponding shooting component according to a range interval where the depth-of-field range is located, and executing a depth-of-field shooting operation on the target object by using the shooting component further includes:

s33, monitoring the range interval of the current depth of field range in real time in the process of executing the depth of field shooting operation of the target object through the shooting component;

and S34, adjusting the shooting component in real time according to the range interval of the current depth of field range.

In this embodiment, first, during the process of performing the depth-of-field shooting operation on the target object by the shooting component, the current depth-of-field range is monitored in real time in a range interval; and then, adjusting the shooting component in real time according to the range interval where the current depth of field range is located.

Optionally, according to multiple groups of binocular cameras configured by the terminal device, the optimal range interval corresponding to each group of cameras is respectively determined, then the range interval in which the current depth of field range is located is monitored in real time, and finally the shooting assembly is adjusted in real time according to the range interval in which the current depth of field range is located.

The method has the advantages that the range interval of the current depth of field range is monitored in real time in the process of executing the depth of field shooting operation of the target object through the shooting assembly; and then, adjusting the shooting component in real time according to the range interval where the current depth of field range is located. The humanized field depth shooting scheme is realized, the field depth blurring effect of field depth shooting is improved, the multi-field depth shooting scenes are enriched, the user operation is simplified, the multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

EXAMPLE six

Based on the foregoing embodiments, the present invention further provides a depth-of-field shooting device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements:

monitoring and extracting at least one shot object in a preview image in real time, and acquiring a selected instruction of the shot object within preset selected time;

In this embodiment, first, at least one photographic object in a preview image is monitored and extracted in real time, and a selection instruction of the photographic object is obtained within a preset selection time; then, selecting a target object in the shot object according to the selected instruction, and detecting the depth of field range of the target object; and finally, determining a corresponding shooting component according to the range interval where the depth-of-field range is located, and executing the depth-of-field shooting operation of the target object through the shooting component.

Specifically, in this embodiment, first, at least one photographic subject in the preview image is monitored and extracted in real time, and a selection instruction of the photographic subject is acquired within a preset selected time. It should be noted that the present solution is suitable for performing depth-of-field shooting on one shooting object, or performing depth-of-field shooting on multiple shooting objects in a smaller depth-of-field range, optionally performing contour recognition and frame selection or feature recognition and marking on the multiple viewing objects in a preview image, and then determining an object to be shot as the shooting object of the present embodiment according to the selection of a user. Optionally, the depth-of-field stage (or depth-of-field range) of the different objects is quickly marked by using different framing graphics or different marking patterns, specifically, the framing graphics include rectangles, stars, triangles, and the like, and the marking patterns include marking colors, marking patterns, marking positions, marking blinking patterns, and the like. Optionally, the frame selection graph is determined according to the attribute of the object, and the marking pattern is determined according to the depth stage of the object, that is, each object in the preview image is marked in a manner of combining the frame selection graph and the marking pattern. Optionally, in a depth of field range in which all cameras of the terminal device can image with an obvious depth of field effect, marking each object in the preview image by combining the frame selection graph and the marking style.

Specifically, in this embodiment, a corresponding shooting component is determined according to a range interval in which the depth-of-field range is located, and the depth-of-field shooting operation of the target object is executed by the shooting component. For example, the distance Z between the subject p and the imaging lens may be calculated for the subject p captured through the binocular ordinary imaging lens OL and the imaging lens OR, and it is understood that the factor affecting the distance Z: (1) a focal length f (2), a distance T between the imaging lens OL and the imaging lens OR; (3) and the parallax d of the point where the shooting object p is located on the binocular lens is xl-xr. From this, it can be seen that if the object p is photographed by using the image pickup lens with the binocular zoom at the same position, for example, a 3-fold telephoto lens is used, the focal length is f _1, and f _1 is 3 × f. That is, it is possible to obtain: if the distance from the lens to the point p is still Z, while T is kept constant, then d _1 is 3 × d, and d _1 is the imaging parallax of the point p on the binocular telephoto. Thus, d _1 — 3 × d indicates that the same point d _1 is three times d. That is, the image captured by the imaging lens for which the binocular telephoto is determined can be calculated to a depth (distance) at least 3 times as large as the calculated depth of the current general lens.

The method has the advantages that at least one shooting object in the preview image is monitored and extracted in real time, and the selected instruction of the shooting object is obtained within the preset selected time; then, selecting a target object in the shot object according to the selected instruction, and detecting the depth of field range of the target object; and finally, determining a corresponding shooting component according to the range interval where the depth-of-field range is located, and executing the depth-of-field shooting operation of the target object through the shooting component. The humanized field depth shooting scheme is realized, the field depth blurring effect of field depth shooting is improved, the multi-field depth shooting scenes are enriched, the user operation is simplified, the multi-camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

EXAMPLE seven

Based on the above embodiments, the computer program when executed by the processor implements:

presetting selected time related to the attributes of the shot objects;

In this embodiment, first, the preview image is analyzed, and a subject in a specific position area of the finder frame is determined as the photographic subject; then, presetting selected time related to the attributes of the shot objects; finally, marking the shooting object in the selected time, and receiving the selected instruction in the position area where the mark is positioned.

Optionally, a selection time related to the shooting object attribute is preset, where the object attribute includes an object type, a proportion of the object to the preview image, details and contour features of the object, and the like, and the selection time corresponding to the shooting object is determined according to the object attribute, for example, if the proportion of the object to the preview image is small or the details and contour features of the object are weak, the selection time is correspondingly increased.

The embodiment has the advantages that the object in the specific position area of the viewfinder frame is determined as the shooting object by analyzing the preview image; then, presetting selected time related to the attributes of the shot objects; finally, marking the shooting object in the selected time, and receiving the selected instruction in the position area where the mark is positioned. The humanized field depth shooting scheme is realized, a camera switching basis and a condition judgment basis are provided for subsequent field depth shooting, the field depth blurring effect of the field depth shooting is improved, multiple field depth shooting scenes are enriched, the user operation is simplified, multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

Example eight

locking the target object according to the selected instruction;

optionally, in a shooting preview stage, detecting a depth of field range of the target object in real time through a preset or initial shooting component;

optionally, in the shooting preview stage, if the proportion change rate of the shooting object exceeds a preset value, the preset or initial shooting assembly is switched to other binocular shooting assemblies to detect the depth of field range of the target object in real time.

The method has the advantages that the target object is locked through the selected instruction; then, in a shooting preview stage, detecting the depth of field range of the target object in real time through a preset shooting assembly. The humanized field depth shooting scheme is realized, a camera switching basis and a condition judgment basis are provided for subsequent field depth shooting, the field depth blurring effect of the field depth shooting is improved, multiple field depth shooting scenes are enriched, the user operation is simplified, multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

Example nine

and adjusting the shooting component in real time according to the range interval of the current depth of field.

Optionally, the corresponding relationship between the shooting component and the shooting environment parameters, the shooting object attributes and the shooting background is preset, wherein the shooting environment parameters include the lighting environment of the shooting object and the image characteristics of the foreground and background of the shooting object, the shooting object attributes include the object type, the proportion of the object to the preview image, the details of the object and the contour characteristics, and the shooting background includes the complexity of the shooting background.

In another embodiment, first, during the process of performing the depth-of-field shooting operation on the target object by the shooting component, the range interval where the current depth-of-field range is located is monitored in real time; and then, adjusting the shooting assembly in real time according to the range interval in which the current depth of field range is located.

The method has the advantages that the range interval of the current depth of field range is monitored in real time in the process of executing the depth of field shooting operation of the target object through the shooting assembly; and then, adjusting the shooting assembly in real time according to the range interval in which the current depth of field range is located. The humanized field depth shooting scheme is realized, the field depth blurring effect of field depth shooting is improved, the multi-field depth shooting scenes are enriched, the user operation is simplified, the multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

Example ten

Based on the foregoing embodiments, the present invention further provides a computer-readable storage medium, where a depth-of-field shooting program is stored, and when executed by a processor, the depth-of-field shooting program implements the steps of the depth-of-field shooting method as described in any one of the above.

By implementing the depth-of-field shooting method, the device and the computer readable storage medium, at least one shooting object in a preview image is monitored and extracted in real time, and a selected instruction of the shooting object is obtained within a preset selected time; then, selecting a target object in the shot objects according to the selected instruction, and detecting the depth of field range of the target object; and finally, determining a corresponding shooting component according to the range interval where the depth of field range is located, and executing the depth of field shooting operation of the target object through the shooting component. The humanized field depth shooting scheme is realized, the field depth blurring effect of field depth shooting is improved, the multi-field depth shooting scenes are enriched, the user operation is simplified, the multiple camera modules configured in the terminal equipment are fully utilized, and the user experience is enhanced.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A depth field shooting method, the method comprising:

the real-time monitoring and extracting at least one shooting object in the preview image, and acquiring a selected instruction of the shooting object in a preset selected time, includes:

analyzing the preview image, and determining a subject in a specific position area of a viewing frame as the shooting subject;

presetting selected time related to the attributes of the shot object;

marking the shooting object in the selected time, and receiving the selected instruction in the position area where the mark is positioned;

wherein, the first and the second end of the pipe are connected with each other,

marking different depth of field stages or depth of field ranges where the shooting objects are located through different framing graphs or different marking styles, wherein the framing graphs comprise rectangles, stars and triangles, and the marking styles comprise marking colors, marking patterns, marking positions and marking flickering modes; determining the frame selection graph according to the attribute of the shot object, and determining the marking pattern according to the depth of field stage of the shot object; marking the depth of field range of each shooting object in the preview image in a mode of combining the framing graph with the marking style;

the shooting object attribute comprises an object type, the proportion of the object to the preview image, the details of the object and the outline characteristics; determining the selected time corresponding to the shooting object according to the shooting object attribute; if the proportion of the object is smaller than that of the preview image or the detail and contour features of the object are weaker, correspondingly increasing the selected time;

the selecting a target object in the shooting objects according to the selected instruction and detecting the depth of field range of the target object comprises the following steps:

locking the target object according to the selected instruction;

in the shooting preview stage, detecting the depth of field range of the target object in real time through a preset shooting assembly;

detecting the depth of field range of the target object in preset detection time through an initially configured camera, and if the depth of field range is detected to be the depth of field range corresponding to a binocular telephoto lens, switching to the dual-purpose telephoto lens in the detection time to carry out shooting operation on the target object;

if the field depth range of the target object is not detected within preset detection time by the initially configured camera, switching to the dual-purpose telephoto lens after the detection time; if the depth of field range of the target object is detected in the preset detection time through the dual-purpose telephoto lens, carrying out shooting operation on the target object through the dual-purpose telephoto lens;

2. The depth-of-field shooting method according to claim 1, wherein the determining a corresponding shooting component according to a range section in which the depth-of-field range is located, and performing the depth-of-field shooting operation of the target object by the shooting component includes:

presetting the corresponding relation between the shooting component and one or more of shooting environment parameters, shooting object attributes and shooting backgrounds;

3. The depth-of-field shooting method according to claim 2, wherein the determining a corresponding shooting component in an area section where the depth-of-field area is located, and performing the depth-of-field shooting operation of the target object by the shooting component, further comprises:

4. A depth-of-field shooting apparatus, the apparatus comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing:

presetting selected time related to the attributes of the shot objects;

marking the shooting object within the selected time, and receiving the selected instruction in the position area where the mark is positioned;

marking different depth of field stages or depth of field ranges where the shooting objects are located through different framing graphs or different marking styles, wherein the framing graphs comprise rectangles, stars and triangles, and the marking styles comprise marking colors, marking patterns, marking positions and marking flickering modes; determining the framing graph according to the attributes of the shot objects, and determining the marking pattern according to the depth of field stage of the shot objects; marking the depth of field range of each shooting object in the preview image in a mode of combining the framing graph with the marking style;

the shooting object attribute comprises an object type, the proportion of the object compared with a preview image, the details of the object and the outline characteristics; determining the selected time corresponding to the shooting object according to the shooting object attribute; if the proportion of the object is smaller than that of the preview image or the detail and contour features of the object are weaker, correspondingly increasing the selected time;

locking the target object according to the selected instruction;

5. The depth camera apparatus of claim 4, wherein the computer program when executed by the processor implements:

presetting a corresponding relation between the shooting component and one or more of shooting environment parameters, shooting object attributes and shooting backgrounds;

6. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a depth shooting program, which when executed by a processor implements the steps of the depth shooting method according to any one of claims 1 to 3.