CN107018326B

CN107018326B - Shooting method and device

Info

Publication number: CN107018326B
Application number: CN201710204990.4A
Authority: CN
Inventors: 陈盼; 王猛
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2017-03-31
Filing date: 2017-03-31
Publication date: 2020-10-16
Anticipated expiration: 2037-03-31
Also published as: CN107018326A

Abstract

The present disclosure introduces a photographing method and apparatus, the method including: when a shooting instruction is received, inquiring a shooting mode of the mobile terminal; when the shooting mode of the mobile terminal is a first shooting mode, focusing a shooting target through the first camera, and controlling the second camera to focus the shooting target according to the focusing processing result of the first camera and shoot; and the focusing processing time length of the first camera is shorter than that of the second camera. The focusing can be completed more quickly and accurately in the low-light environment, the defect that the light inlet quantity of the color sensor is insufficient in the low-light environment is overcome, and the final shooting effect is improved.

Description

Shooting method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a shooting method and apparatus.

Background

With the development of electronic devices, terminals having a camera function have become popular in the lives of people. The more and more abundant terminal of function has greatly made things convenient for people's life. In recent years, with the rapid development of image processing technology, the camera function of the terminal is becoming more and more powerful, and with the advantage of convenience in carrying the terminal, more and more users prefer to take pictures through the terminal.

In order to improve the photographing effect of the terminal, more and more terminals adopt double cameras. The effect of the pictures shot by the terminal with two cameras is higher than the effect of the pictures eliminated by the terminal with a single camera, and the picture quality is clearer. The double cameras on the terminal in the prior art are all set as the color cameras, however, the light inlet quantity of the color sensor of the color camera is insufficient in the low-light environment, and the double cameras which are all the color cameras are used for shooting in the low-light environment, so that the problems of inaccurate focusing and low focusing speed are easily caused.

Disclosure of Invention

The main purpose of the present disclosure is to provide a shooting method and device, which can achieve focusing more quickly and accurately in a low light environment, make up for the defect of insufficient light input amount of a color sensor in the low light environment, and improve the final shooting effect.

In order to achieve the above object, the present disclosure provides a photographing apparatus applied to a mobile terminal, the mobile terminal including a first camera and a second camera, the apparatus including:

the query module is used for querying the shooting mode of the mobile terminal when receiving the shooting instruction;

the first shooting module is used for focusing a shooting target through the first camera and controlling the second camera to focus the shooting target according to a focusing processing result of the first camera and shoot when the shooting mode of the mobile terminal is the first shooting mode; and the focusing processing time length of the first camera is shorter than that of the second camera.

Optionally, the first shooting module specifically includes:

the focusing unit is used for determining the position information of a shooting target in a first shooting scene through the first camera and carrying out focusing processing on the shooting target to obtain focusing processing information; the first shooting scene is acquired through the first camera;

the control unit is used for controlling the second camera to determine the shooting target in a second shooting scene according to the position information, and carrying out focusing processing on the shooting target according to the focusing processing information and carrying out shooting; the second shooting scene is acquired through the second camera.

Optionally, in the first shooting mode, the first camera adopts a black-and-white shooting mode, and the second camera adopts a color shooting mode.

Optionally, the apparatus further comprises:

the second shooting module is used for shooting the shooting target through the first camera and the second camera together when the shooting mode of the mobile terminal is the second shooting mode;

the analysis module is used for carrying out focusing analysis on the shot picture;

and the correction module is used for converting the shooting mode of the mobile terminal into a first shooting mode and sending a shooting instruction when the shooting target is not clear in the picture.

Optionally, in the second shooting mode, the first camera and the second camera both adopt a color shooting mode.

In addition, to achieve the above object, the present disclosure also provides a shooting method applied to a mobile terminal, where the mobile terminal includes a first camera and a second camera, and the method includes:

when a shooting instruction is received, inquiring a shooting mode of the mobile terminal;

when the shooting mode of the mobile terminal is a first shooting mode, focusing a shooting target through the first camera, and controlling the second camera to focus the shooting target according to the focusing processing result of the first camera and shoot; and the focusing processing time length of the first camera is shorter than that of the second camera.

Optionally, the focusing processing on the shooting target by the first camera, and controlling the second camera to focus the shooting target and shoot according to the focusing processing result of the first camera, include:

determining the position information of a shooting target in a first shooting scene through the first camera, and carrying out focusing processing on the shooting target to obtain focusing processing information; the first shooting scene is acquired through the first camera;

controlling the second camera to determine the shooting target in a second shooting scene according to the position information, and carrying out focusing processing on the shooting target according to the focusing processing information and carrying out shooting; the second shooting scene is acquired through the second camera.

Optionally, the method further includes:

when the shooting mode of the mobile terminal is a second shooting mode, shooting the shooting target through the first camera and the second camera together;

focusing analysis is carried out on the shot picture;

and when the shooting target is not clear in the picture, converting the shooting mode of the mobile terminal into a first shooting mode, and sending a shooting instruction.

The shooting method and the shooting device set one camera of the two cameras to be in a black-and-white shooting mode and the other camera to be in a color shooting mode under the condition that a shooting target in a picture is not clear. Since the light-entering amount in the black-and-white shooting mode is much greater than that in the color shooting mode, the focusing speed and effect in the black-and-white shooting mode are significantly better than those in the color shooting mode in a low-light environment. And focusing the shooting target by the camera in the black-and-white shooting mode, and shooting the shooting target by the camera in the color shooting mode according to focusing processing information. The method and the device realize that the focusing can be completed more quickly and accurately in the low-light environment, and make up for the defect that the light inlet quantity of the color sensor is insufficient in the low-light environment, so that the focusing effect is improved, and the final shooting effect is improved.

Drawings

Fig. 1 is a schematic hardware structure diagram of an alternative mobile terminal implementing various embodiments of the present disclosure;

FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;

fig. 3 is a flowchart of a photographing method according to a first embodiment of the present disclosure;

fig. 4 is a flowchart of a photographing method according to a second embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a shooting device according to a third embodiment of the disclosure;

fig. 6 is a schematic structural diagram of a shooting device according to a fourth embodiment of the disclosure;

the objects, features, and advantages of the present disclosure will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.

A mobile terminal implementing various embodiments of the present disclosure will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present disclosure, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.

The mobile terminal may be implemented in various forms. For example, the terminal described in the present disclosure may include a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a navigation device, and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present disclosure can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.

Fig. 1 is a schematic hardware structure of an alternative mobile terminal implementing various embodiments of the present disclosure.

The mobile terminal 100 may include a wireless communication unit 110, an a/V (audio/video) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, and a power supply unit 190, etc. Fig. 1 illustrates a mobile terminal having various components, but it is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented. Elements of the mobile terminal will be described in detail below.

The wireless communication unit 110 typically includes one or more components that allow radio communication between the mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short-range communication module 114, and a location information module 115.

The broadcast receiving module 111 receives a broadcast signal and/or broadcast associated information from an external broadcast management server via a broadcast channel. The broadcast channel may include a satellite channel and/or a terrestrial channel. The broadcast management server may be a server that generates and transmits a broadcast signal and/or broadcast associated information or a server that receives a previously generated broadcast signal and/or broadcast associated information and transmits it to a terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Also, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast associated information may also be provided via a mobile communication network, and in this case, the broadcast associated information may be received by the mobile communication module 112. The broadcast signal may exist in various forms, for example, it may exist in the form of an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB), an Electronic Service Guide (ESG) of digital video broadcasting-handheld (DVB-H), and the like. The broadcast receiving module 111 may receive a signal broadcast by using various types of broadcasting systems. In particular, the broadcast receiving module 111 may receive digital broadcasting by using a digital broadcasting system such as a data broadcasting system of multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video broadcasting-handheld (DVB-H), forward link media (MediaFLO @), terrestrial digital broadcasting integrated service (ISDB-T), and the like. The broadcast receiving module 111 may be constructed to be suitable for various broadcasting systems that provide broadcast signals as well as the above-mentioned digital broadcasting systems. The broadcast signal and/or broadcast associated information received via the broadcast receiving module 111 may be stored in the memory 160 (or other type of storage medium).

The mobile communication module 112 transmits and/or receives radio signals to and/or from at least one of a base station (e.g., access point, node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received according to text and/or multimedia messages.

The wireless internet module 113 supports wireless internet access of the mobile terminal. The module may be internally or externally coupled to the terminal. The wireless internet access technology to which the module relates may include WLAN (wireless LAN) (Wi-Fi), Wibro (wireless broadband), Wimax (worldwide interoperability for microwave access), HSDPA (high speed downlink packet access), and the like.

The short-range communication module 114 is a module for supporting short-range communication. Some examples of short-range communication technologies include bluetooth (TM), Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), zigbee (TM), and the like.

The location information module 115 is a module for checking or acquiring location information of the mobile terminal. A typical example of the location information module is a GPS (global positioning system). According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information, thereby accurately calculating three-dimensional current location information according to longitude, latitude, and altitude. Currently, a method for calculating position and time information uses three satellites and corrects an error of the calculated position and time information by using another satellite. In addition, the GPS module 115 can calculate speed information by continuously calculating current position information in real time.

The a/V input unit 120 is used to receive an audio or video signal. The a/V input unit 120 may include a camera 121 and a microphone 122, and the camera 121 processes image data of still pictures or video obtained by an image capturing apparatus in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 151. The image frames processed by the cameras 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 121 may be provided according to the construction of the mobile terminal. The microphone 122 may receive sounds (audio data) via the microphone in a phone call mode, a recording mode, a voice recognition mode, or the like, and can process 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 mobile communication module 112 in case of a phone call mode. The microphone 122 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 user input unit 130 may generate key input data according to a command input by a user to control various operations of the mobile terminal. The user input unit 130 allows a user to input various types of information, and may include a keyboard, dome sheet, touch pad (e.g., a touch-sensitive member that detects changes in resistance, pressure, capacitance, and the like due to being touched), scroll wheel, joystick, and the like. In particular, when the touch pad is superimposed on the display unit 151 in the form of a layer, a touch screen may be formed.

The sensing unit 140 detects a current state of the mobile terminal 100 (e.g., an open or closed state of the mobile terminal 100), a position of the mobile terminal 100, presence or absence of contact (i.e., touch input) by a user with the mobile terminal 100, an orientation of the mobile terminal 100, acceleration or deceleration movement and direction of the mobile terminal 100, and the like, and generates a command or signal for controlling an operation of the mobile terminal 100. For example, when the mobile terminal 100 is implemented as a slide-type mobile phone, the sensing unit 140 may sense whether the slide-type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 supplies power or whether the interface unit 170 is coupled with an external device.

The interface unit 170 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 identification module may store various information for authenticating a user using the mobile terminal 100 and may include a User Identity Module (UIM), a Subscriber Identity Module (SIM), a Universal Subscriber Identity Module (USIM), and the like. In addition, a device having an identification module (hereinafter, referred to as an "identification device") may take the form of a smart card, and thus, the identification device may be connected with the mobile terminal 100 via a port or other connection means. The interface unit 170 may be used to receive input (e.g., data information, power, etc.) from an external device 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 and the external device.

In addition, when the mobile terminal 100 is connected with an external cradle, the interface unit 170 may serve as a path through which power is supplied from the cradle to the mobile terminal 100 or may serve as a path through which various command signals input from the cradle are transmitted to the mobile terminal. Various command signals or power input from the cradle may be used as signals for recognizing whether the mobile terminal is accurately mounted on the cradle. The output unit 150 is configured to provide output signals (e.g., audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio, and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.

The display unit 151 may display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 may display a User Interface (UI) or a Graphical User Interface (GUI) related to a call or other communication (e.g., text messaging, multimedia file downloading, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing a video or an image and related functions, and the like.

Meanwhile, when the display unit 151 and the touch pad are overlapped with each other in the form of a layer to form a touch screen, the display unit 151 may serve as an input device and an output device. The display unit 151 may include at least one of a Liquid Crystal Display (LCD), a thin film transistor LCD (TFT-LCD), an Organic Light Emitting Diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as transparent displays, and a typical transparent display may be, for example, a TOLED (transparent organic light emitting diode) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown). The touch screen may be used to detect a touch input pressure as well as a touch input position and a touch input area.

The audio output module 152 may convert audio data received by the wireless communication unit 110 or stored in the memory 160 into an audio signal and output as sound when the mobile terminal 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 module 152 may 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 module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 may provide an output to notify the mobile terminal 100 of the occurrence of an event. Typical events may include call reception, message reception, key signal input, touch input, and the like. In addition to audio or video output, the alarm unit 153 may provide output in different ways to notify the occurrence of an event. For example, the alarm unit 153 may provide an output in the form of vibration, and when a call, a message, or some other incoming communication (communicating communication) is received, the alarm unit 153 may provide a tactile output (i.e., vibration) to inform the user thereof. By providing such a tactile output, the user can recognize the occurrence of various events even when the user's mobile phone is in the user's pocket. The alarm unit 153 may also provide an output notifying the occurrence of an event via the display unit 151 or the audio output module 152.

The memory 160 may store software programs and the like for processing and controlling operations performed by the controller 180, or may temporarily store data (e.g., a phonebook, messages, still images, videos, and the like) that has been or will be output. Also, the memory 160 may store data regarding various ways of vibration and audio signals output when a touch is applied to the touch screen.

The memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. Also, the mobile terminal 100 may cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.

The controller 180 generally controls the overall operation of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, and the multimedia module 181 may be constructed within the controller 180 or may be constructed separately from the controller 180. The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 190 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the controller 180.

The various embodiments described herein may be implemented in a computer-readable medium using, for example, computer software, hardware, or any combination thereof. For a hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in the controller 180. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in the memory 160 and executed by the controller 180.

Up to this point, mobile terminals have been described in terms of their functionality. Hereinafter, a slide-type mobile terminal among various types of mobile terminals, such as a folder-type, bar-type, swing-type, slide-type mobile terminal, and the like, will be described as an example for the sake of brevity. Accordingly, the present disclosure can be applied to any type of mobile terminal, and is not limited to a slide type mobile terminal.

The mobile terminal 100 as shown in fig. 1 may be configured to operate with communication systems such as wired and wireless communication systems and satellite-based communication systems that transmit data via frames or packets.

A communication system in which a mobile terminal according to the present disclosure is operable will now be described with reference to fig. 2.

Such communication systems may use different air interfaces and/or physical layers. For example, the air interface used by the communication system includes, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)), global system for mobile communications (GSM), and the like. By way of non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to fig. 2, the CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of Base Stations (BSs) 270, Base Station Controllers (BSCs) 275, and a Mobile Switching Center (MSC) 280. The MSC280 is configured to interface with a Public Switched Telephone Network (PSTN) 290. The MSC280 is also configured to interface with a BSC275, which may be coupled to the base station 270 via a backhaul. The backhaul may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, frame Relay, HDSL, ADSL, or xDSL. It will be understood that a system as shown in fig. 2 may include multiple BSCs 275.

Each BS270 may serve one or more areas (or regions), each area covered by a multi-directional antenna or an antenna pointing in a particular direction being radially distant from the BS 270. Alternatively, each area may be covered by two or more antennas for diversity reception. Each BS270 may be configured to support multiple frequency allocations, with each frequency allocation having a particular frequency spectrum (e.g., 1.25MHz, 5MHz, etc.).

The intersection of a region with a frequency assignment may be referred to as a CDMA channel. The BS270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" may be used to generically refer to a single BSC275 and at least one BS 270. The base stations may also be referred to as "cells". Alternatively, each area of a particular BS270 may be referred to as a plurality of cell sites.

As shown in fig. 2, a Broadcast Transmitter (BT)295 transmits a broadcast signal to the mobile terminal 100 operating within the system. A broadcast receiving module 111 as shown in fig. 1 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295. In fig. 2, several Global Positioning System (GPS) satellites 300 are shown. The satellite 300 assists in locating at least one of the plurality of mobile terminals 100.

In fig. 2, a plurality of satellites 300 are depicted, but it is understood that useful positioning information may be obtained with any number of satellites. The GPS module 115 as shown in fig. 1 is generally configured to cooperate with satellites 300 to obtain desired positioning information. Other techniques that can track the location of the mobile terminal may be used instead of or in addition to GPS tracking techniques. In addition, at least one GPS satellite 300 may selectively or additionally process satellite DMB transmission.

As a typical operation of the wireless communication system, the BS270 receives reverse link signals from various mobile terminals 100. The mobile terminal 100 is generally engaged in conversations, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within the particular BS 270. The obtained data is forwarded to the associated BSC 275. The BSC provides call resource allocation and mobility management functions including coordination of soft handoff procedures between BSs 270. The BSCs 275 also route the received data to the MSC280, which provides additional routing services for interfacing with the PSTN 290. Similarly, the PSTN290 interfaces with the MSC280, the MSC interfaces with the BSCs 275, and the BSCs 275 accordingly control the BS270 to transmit forward link signals to the mobile terminal 100.

Based on the above mobile terminal hardware structure and communication system, various embodiments of the method of the present disclosure are proposed.

As shown in fig. 3, a first embodiment of the present disclosure proposes a shooting method applied to the mobile terminal, where the mobile terminal includes a first camera and a second camera, and the method specifically includes the following steps:

step S301: and when a shooting instruction is received, inquiring the shooting mode of the mobile terminal.

Specifically, a plurality of shooting modes are set on the mobile terminal, for example: a night view shooting mode, a person shooting mode, a motion shooting mode, and the like. The mobile terminal user can also customize a shooting mode on the mobile terminal according to the self requirement so as to be used for a specific shooting scene.

Step S302: when the shooting mode of the terminal is a first shooting mode, focusing a shooting target through the first camera, and controlling the second camera to focus the shooting target according to the focusing processing result of the first camera and shoot; and the focusing processing time length of the first camera is shorter than that of the second camera.

Specifically, the focusing processing result includes: position information and focus processing information.

Further, step S302 includes:

step A1: determining the position information of a shooting target in a first shooting scene through the first camera, and carrying out focusing processing on the shooting target to obtain focusing processing information; the first shooting scene is acquired through the first camera.

Step A2: controlling the second camera to determine the shooting target in a second shooting scene according to the position information, and carrying out focusing processing on the shooting target according to the focusing processing information and carrying out shooting; the second shooting scene is acquired through the second camera.

In this embodiment, since the focusing processing time length of the first camera is shorter than the focusing processing time length of the second camera, the first camera is only used for focusing processing and does not perform shooting, and the second camera performs shooting by using the focusing processing information of the first camera.

Further, in a first shooting mode, the first camera adopts a black and white shooting mode, and the second camera adopts a color shooting mode.

The light inlet quantity of the camera in the black-and-white shooting mode is far greater than that of the camera in the color shooting mode, so that the position of the shot target can be more accurately identified through the camera in the black-and-white shooting mode in a low-light environment, and the shot target can be focused more quickly. In order to improve the focusing speed and accuracy of the mobile terminal in the shooting process, the camera in the black-and-white shooting mode is used for carrying out rapid focusing processing on the shot target, and the camera in the color shooting mode is used for shooting the shot target according to focusing processing information. In the shooting process, the camera in the color shooting mode utilizes the focusing position of the camera in the black-and-white shooting mode to enable the focusing position of the camera in the color shooting mode to be optimal at the fastest speed, so that the shooting can be carried out more quickly and clearly.

As shown in fig. 4, a second embodiment of the present disclosure proposes a shooting method applied to the mobile terminal, where the mobile terminal includes a first camera and a second camera, and the method includes the following specific steps:

step S401: and when a shooting instruction is received, inquiring the shooting mode of the mobile terminal.

Specifically, a plurality of shooting modes are set on the mobile terminal, for example: a night view shooting mode, a person shooting mode, a motion shooting mode, and the like. The mobile terminal user can also customize the shooting mode on the mobile terminal according to the requirement so as to be used for a specific shooting scene.

Step S402: and when the shooting mode of the terminal is a second shooting mode, shooting the shooting target through the first camera and the second camera together.

Specifically, in the second shooting mode, the first camera and the second camera both adopt a color shooting mode. In a second shooting mode, the first camera and the second camera which both adopt a color shooting mode commonly focus the shooting target and shoot the shooting target, so that a picture about the shooting target is obtained. That is, the second photographing mode is a normal photographing mode by the dual cameras of the mobile terminal.

Step S403: and performing focusing analysis on the shot picture, if the analysis result is focusing failure, executing the step S404, and if the analysis result is focusing success, finishing the shooting instruction and storing the picture.

And the focusing analysis is to judge whether the shot target is clear in the picture, and if the shot target is not clear in the picture, the focusing is failed.

Specifically, how to judge whether the focusing is successful belongs to the known technology of the person skilled in the art, and is not used to limit the protection scope of the present invention, and is not described herein again. The invention emphasizes how to carry out refocusing treatment after judging that the focusing fails.

Step S404: and under the condition of focusing failure, converting the shooting mode of the mobile terminal into a first shooting mode, and re-sending a shooting instruction.

Step S405: and when the shooting instruction is received again, inquiring the shooting mode of the mobile terminal again.

Step S406: when the shooting mode of the mobile terminal is a first shooting mode, focusing a shooting target through the first camera, and controlling the second camera to focus the shooting target according to the focusing processing information of the first camera and shoot; and the focusing processing time length of the first camera is shorter than that of the second camera.

Specifically, step S406 includes:

step B1: determining the position information of a shooting target in a first shooting scene through the first camera, and carrying out focusing processing on the shooting target to obtain focusing processing information; the first shooting scene is acquired through the first camera.

Step B2: controlling the second camera to determine the shooting target in a second shooting scene according to the position information, and focusing and shooting the shooting target according to the focusing processing information; the second shooting scene is acquired through the second camera.

In the case where a photographic subject in a picture is unclear, one of the two cameras is set to a black-and-white photographing mode, and the other camera is set to a color photographing mode. Since the light-entering amount in the black-and-white shooting mode is much greater than that in the color shooting mode, the focusing speed and effect in the black-and-white shooting mode are significantly better than those in the color shooting mode in a low-light environment. And focusing the shooting target by the camera in the black-and-white shooting mode, and shooting the shooting target by the camera in the color shooting mode according to focusing processing information. The method and the device realize that the focusing can be completed more quickly and accurately in the low-light environment, and make up for the defect that the light inlet quantity of the color sensor is insufficient in the low-light environment, so that the focusing effect is improved, and the final shooting effect is improved.

As shown in fig. 5, a third embodiment of the present disclosure provides a shooting device applied to the mobile terminal, where the mobile terminal includes a first camera and a second camera, and the device specifically includes the following components:

the query module 501 is configured to query the shooting mode of the mobile terminal when receiving a shooting instruction.

A first shooting module 502, configured to perform focusing processing on a shooting target through the first camera when a shooting mode of the terminal is a first shooting mode, and control the second camera to focus the shooting target according to a focusing processing result of the first camera and perform shooting; and the focusing processing time length of the first camera is shorter than that of the second camera.

Further, the first photographing module 502 includes:

the focusing unit is used for determining the position information of a shooting target in a first shooting scene through the first camera and carrying out focusing processing on the shooting target to obtain focusing processing information; the first shooting scene is acquired through the first camera.

As shown in fig. 6, a fourth embodiment of the present disclosure provides a shooting device applied to the mobile terminal, where the mobile terminal includes a first camera and a second camera, and the device specifically includes the following components:

the query module 601 is configured to query a shooting mode of the mobile terminal when receiving a shooting instruction.

A second shooting module 602, configured to shoot the shooting target through the first camera and the second camera together when the shooting mode of the terminal is a second shooting mode.

The analysis module 603 is configured to perform focusing analysis on the shot picture, trigger the correction module 604 if the analysis result is that focusing fails, and complete the shooting instruction and store the picture if the analysis result is that focusing succeeds.

Specifically, the focusing analysis is to determine whether the shot target is clear in the picture, and if the shot target is not clear in the picture, the focusing fails.

How to judge whether the focusing is successful belongs to the known technology of the person skilled in the art, and is not used to limit the protection scope of the present invention, and is not described herein again. The invention emphasizes how to carry out refocusing treatment after judging that the focusing fails.

The correcting module 604 is configured to, in the case that the focusing fails, convert the shooting mode of the mobile terminal into the first shooting mode, and re-send a shooting instruction to re-trigger the querying module 601.

The query module 601 queries the shooting mode of the mobile terminal again when receiving the shooting instruction again.

Further, the apparatus further comprises:

a first shooting module 605, configured to, when a shooting mode of the mobile terminal is a first shooting mode, perform focusing processing on a shooting target through the first camera, and control the second camera to focus the shooting target according to focusing processing information of the first camera and perform shooting; and the focusing processing time length of the first camera is shorter than that of the second camera.

Specifically, the first shooting module 605 specifically includes:

The control unit is used for controlling the second camera to determine the shooting target in a second shooting scene according to the position information, and focusing the shooting target according to the focusing processing information and shooting; the second shooting scene is acquired through the second camera.

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 defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., 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 disclosure.

The above description is only a preferred embodiment of the present disclosure, and not intended to limit the scope of the present disclosure, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present disclosure and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present disclosure.

Claims

1. A shooting device is applied to a mobile terminal, the mobile terminal comprises a first camera and a second camera, and the device comprises:

the correction module is used for converting the shooting mode of the mobile terminal into a first shooting mode and sending a shooting instruction when the shooting target is not clear in the picture;

the first shooting module is used for focusing a shooting target through the first camera and controlling the second camera to focus the shooting target according to a focusing processing result of the first camera and shoot when the shooting mode of the mobile terminal is the first shooting mode; the focusing processing time length of the first camera is shorter than that of the second camera;

the first shooting mode is a low-light shooting mode, and the second shooting mode is a conventional shooting mode;

and in a second shooting mode, the first camera and the second camera both adopt a color shooting mode.

2. The shooting device of claim 1, wherein the first shooting module specifically comprises:

3. The imaging apparatus according to claim 1 or 2, wherein in the first imaging mode, the first camera adopts a black-and-white imaging mode, and the second camera adopts a color imaging mode.

4. A shooting method is applied to a mobile terminal, wherein the mobile terminal comprises a first camera and a second camera, and the method comprises the following steps:

focusing analysis is carried out on the shot picture;

when the shooting target is not clear in the picture, converting the shooting mode of the mobile terminal into a first shooting mode, and sending a shooting instruction;

when the shooting mode of the mobile terminal is a first shooting mode, focusing a shooting target through the first camera, and controlling the second camera to focus the shooting target according to the focusing processing result of the first camera and shoot; the focusing processing time length of the first camera is shorter than that of the second camera;

5. The shooting method according to claim 4, wherein the performing of focusing processing on the shooting target by the first camera and controlling of the second camera to perform focusing on the shooting target according to the result of the focusing processing by the first camera comprise:

6. The photographing method according to claim 4 or 5, wherein in the first photographing mode, the first camera adopts a black-and-white photographing mode, and the second camera adopts a color photographing mode.