WO2017185778A1 - 一种移动终端及其曝光方法、计算机存储介质 - Google Patents

一种移动终端及其曝光方法、计算机存储介质 Download PDF

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Publication number
WO2017185778A1
WO2017185778A1 PCT/CN2016/111744 CN2016111744W WO2017185778A1 WO 2017185778 A1 WO2017185778 A1 WO 2017185778A1 CN 2016111744 W CN2016111744 W CN 2016111744W WO 2017185778 A1 WO2017185778 A1 WO 2017185778A1
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WIPO (PCT)
Prior art keywords
electronic black
black card
exposure time
mobile terminal
exposure
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PCT/CN2016/111744
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English (en)
French (fr)
Inventor
谢书勋
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Nubia Technology Co Ltd
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Nubia Technology Co Ltd
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Publication of WO2017185778A1 publication Critical patent/WO2017185778A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time

Definitions

  • the present invention relates to the field of photographing technology, and in particular, to a mobile terminal, an exposure method thereof, and a computer storage medium.
  • CMOS Complementary Metal-Oxide Semiconductor
  • CMOS image sensors adopt a rolling shutter exposure mode (pixel-by-row exposure). In this exposure mode, shooting a high-speed moving object can cause significant distortion, which is not conducive to the user's shooting experience.
  • the embodiments of the present invention provide a mobile terminal and an exposure method thereof, which can solve the problem that a high-speed moving object is deformed and improve the user's shooting experience.
  • An embodiment of the present invention provides a mobile terminal, where the mobile terminal includes: a CMOS image sensing unit, an acquiring unit, and a control unit;
  • the acquiring unit is configured to acquire an exposure time corresponding to the setting instruction when receiving the setting instruction; the exposure time corresponds to a moving speed of the captured object;
  • the control unit is configured to, when configured to detect a photographing instruction, control the CMOS image sensing unit to perform global exposure according to the exposure time.
  • the mobile terminal further includes a storage unit configured to store an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time; Wherein, the exposure time is inversely related to the moving speed of the target;
  • the acquiring unit is configured to query the exposure time set stored by the storage unit when receiving the first setting instruction, and obtain a first exposure time corresponding to the first setting instruction.
  • the mobile terminal further includes an electronic black card disposed on a light incident side of the CMOS image sensing unit;
  • the electronic black card is in a transparent state in a power-off state, so that light enters the CMOS image sensing unit through the electronic black card; the electronic black card is in a non-transparent state in a power-on state, to block Light entering the CMOS image sensing unit.
  • control unit is further configured to: obtain a state of the electronic black card when detecting a photographing instruction; and control the electronic black card when the state of the electronic black card is a powered state Switching to the power down state causes the CMOS image sensing unit to perform global exposure.
  • control module is further configured to control the electronic black card to be powered on when receiving a shutter close instruction; or to control the electronic black card to be powered down when receiving a shutter open command .
  • the exposure time is inversely related to the speed of movement of the target.
  • the electronic black card is disposed on a surface of the CMOS image sensing unit on the light incident side, or is fixed to the light incident side of the CMOS image sensing unit, or is disposed on the CMOS image. The inside of the sensing unit.
  • the currents loaded on the electronic black card are different in light transmittance corresponding to the electronic black card.
  • the number of the electronic black cards is multiple; the mobile terminal further includes a detecting unit configured to detect a preview image acquired by the CMOS image sensing unit, and identify a number in the preview image. a first display parameter of an area; the first area being any one of the preview images;
  • the control unit is further configured to control, according to the first display parameter obtained by the detecting unit, the first electronic black card corresponding to the first area to be powered on.
  • control unit is further configured to: when the first electronic black card corresponding to the first area is powered on, the first display parameter based on the first area and the first area And displaying parameters of the other electronic regions, wherein the first electronic black card is any one of the plurality of electronic black cards.
  • An embodiment of the present invention further provides an exposure method, which is applied to a mobile terminal; the mobile terminal includes a CMOS image sensing unit; and the method includes:
  • Receiving a setting instruction acquiring an exposure time corresponding to the setting instruction; the exposure time corresponds to a moving speed of the captured object;
  • the CMOS image sensing unit is controlled to perform global exposure according to the exposure time.
  • the method before the obtaining the exposure time corresponding to the setting instruction, the method further includes: setting and storing an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time. ;
  • acquiring an exposure time corresponding to the setting instruction comprises:
  • the exposure time set is queried to obtain a first exposure time corresponding to the first setting instruction.
  • the method before the controlling the CMOS image sensing unit to perform global exposure according to the exposure time, the method further includes:
  • a mode setting instruction is detected, and the CMOS image sensing unit is controlled to be in a global exposure mode based on the mode setting instruction.
  • the mobile terminal further includes an electronic black card disposed on a light incident side of the CMOS image sensing unit; the electronic black card is in a transparent state in a power down state; The electronic black card is in a non-transparent state in a power-on state;
  • the method further includes: obtaining a state of the electronic black card when detecting a photographing instruction; and when the state of the electronic black card is powered on In the state, the electronic black card is controlled to switch to a power-down state to cause the CMOS image sensing unit to perform global exposure.
  • the mobile terminal further includes an electronic black card disposed on a light incident side of the CMOS image sensing unit; the electronic black card is in a transparent state in a power down state; The electronic black card is in a non-transparent state in a power-on state;
  • the method further includes: controlling the electronic black card to be powered upon receiving the shutter close command; or controlling the electronic black card to be powered down upon receiving the shutter open command.
  • the currents loaded on the electronic black card are different in light transmittance corresponding to the electronic black card.
  • the number of the electronic black cards is multiple; before the detecting the photographing instruction, the method further includes:
  • the method when the first electronic black card corresponding to the first area is powered on based on the first display parameter, the method further includes:
  • the exposure time is inversely related to the speed of movement of the target.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are configured to perform the exposure method according to the embodiment of the invention.
  • the mobile terminal provided by the embodiment of the present invention, the exposure method thereof, and the computer storage medium, the mobile terminal includes: a CMOS image sensing unit, an obtaining unit, and a control unit; wherein the acquiring unit is configured to receive a setting instruction , obtaining the exposure time corresponding to the setting instruction The exposure time corresponds to a moving speed of the photographed object; the control unit is configured to control the CMOS image sensing unit to perform global exposure according to the first exposure time when the photographing instruction is detected.
  • the technical solution of the embodiment of the present invention is convenient for the user to set the upper limit of the exposure time in the global exposure mode when the mobile terminal is used to capture a high-speed moving object, so that the captured object is not easily deformed, and the user is improved. Shooting experience.
  • FIG. 1 is a schematic structural diagram of hardware of an optional mobile terminal embodying various embodiments of the present invention
  • FIG. 2 is a schematic diagram of a wireless communication system of the mobile terminal shown in FIG. 1;
  • Figure 3 is a block diagram showing the electrical structure of the camera of Figure 1;
  • FIG. 4 is a schematic diagram of a first component structure of a mobile terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a second component structure of a mobile terminal according to an embodiment of the present invention.
  • FIG. 6 is a schematic flow chart of an exposure method according to an embodiment of the present invention.
  • FIG. 7 is another schematic flowchart of an exposure method according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a mobile terminal as a hardware entity according to an embodiment of the present invention.
  • FIGS. 9a and 9b are schematic diagrams of images acquired before and after exposure method according to an embodiment of the present invention.
  • the mobile terminal can be implemented in various forms.
  • the terminal described in the present invention may include, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet), a PMP (Portable Multimedia Player), a navigation device, etc.
  • Mobile terminals and fixed terminals such as digital TVs, desktop computers, and the like.
  • the terminal is a mobile terminal.
  • those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.
  • FIG. 1 is a schematic diagram showing the hardware structure of an optional mobile terminal embodying various embodiments of the present invention.
  • the mobile terminal 100 may include a wireless communication unit 110, an A/V (audio/video) input unit 120, a user input unit 130, an ultrasonic device 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, a power supply unit 190, and the like. Wait.
  • Figure 1 illustrates a mobile terminal having various components, but it should be understood that not all illustrated components are required to be implemented. More or fewer components can be implemented instead. The elements of the mobile terminal will be described in detail below.
  • Wireless communication unit 110 typically includes one or more components that permit radio communication between mobile terminal 100 and a wireless communication device or network.
  • the wireless communication unit may include at least one of a broadcast receiving module 111 and a mobile communication module 112.
  • 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 can 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 the terminal.
  • the broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like.
  • 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 be handheld in digital multimedia broadcasting (DMB) electronic program guide (EPG), digital video broadcasting.
  • DMB digital multimedia broadcasting
  • EPG electronic program guide
  • DVB-H exists in the form of an Electronic Service Guide (ESG) or the like.
  • the broadcast receiving module 111 can receive a signal broadcast by using various types of broadcast apparatuses.
  • the broadcast receiving module 111 can use forward link media (MediaFLO) by using, for example, multimedia broadcast-terrestrial (DMB-T), digital multimedia broadcast-satellite (DMB-S), digital video broadcast-handheld (DVB-H)
  • DMB-T multimedia broadcast-terrestrial
  • DMB-S digital multimedia broadcast-satellite
  • DMB-H digital video broadcast-handheld
  • the digital broadcasting device of the @) data broadcasting device, the terrestrial digital broadcasting integrated service (ISDB-T), or the like receives the digital broadcasting.
  • the broadcast receiving module 111 can be constructed as various broadcast apparatuses suitable for providing broadcast signals as well as the above-described digital broadcast apparatuses.
  • 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 the radio signals to and/or receives radio signals from at least one of a base station (e.g., an access point, a Node B, etc.), an external terminal, and a server.
  • a base station e.g., an access point, a Node B, etc.
  • Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received in accordance with text and/or multimedia messages.
  • the A/V input unit 120 is for receiving an audio or video signal.
  • the A/V input unit 120 may include a camera 121 and a microphone 122 that processes image data of a still image or video obtained by an image capturing device in a video capturing mode or an image capturing mode.
  • the processed image frame can be displayed on the display unit 151.
  • the image frames processed by the camera 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 configuration of the mobile terminal.
  • the microphone 122 can receive sound (audio data) via a microphone in an operation mode of a telephone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound as audio data.
  • the processed audio (voice) data can be converted to a format output that can be transmitted to the mobile communication base station via the mobile communication module 112 in the case of a telephone call mode.
  • the microphone 122 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated during the process of receiving and transmitting audio signals.
  • the user input unit 130 may generate key input data according to a command input by the user to control various operations of the mobile terminal.
  • the user input unit 130 allows the user to input various types of information, and may include a keyboard, a pot, a touch pad (eg, detecting resistance due to contact, Touch sensitive components of pressure, capacitance, etc.), scroll wheels, rockers, and the like.
  • a touch pad eg, detecting resistance due to contact, Touch sensitive components of pressure, capacitance, etc.
  • the electronic black card 140 is disposed on the light incident side of the CMOS sensor in the camera, and the electronic black card is in a transparent state when the power is off, so that the light can enter the CMOS image sensor, and is in a non-transparent state at the time of power-on, blocking the entry into the CMOS image sensor.
  • the electronic black card can pass through the liquid crystal Implemented by a panel or a transparent electronic film.
  • Output unit 150 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner.
  • the output unit 150 may include a display unit 151, an audio output module 152, and the like.
  • the display unit 151 can 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 can display a user interface (UI) or a graphical user interface (GUI) related to a call or other communication (eg, text messaging, multimedia file download, 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 image and related functions, and the like.
  • UI user interface
  • GUI graphical user interface
  • the display unit 151 can function 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 (three-dimensional) display, and the like.
  • LCD liquid crystal display
  • TFT-LCD thin film transistor LCD
  • OLED organic light emitting diode
  • a flexible display a three-dimensional (three-dimensional) 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 a transparent display, and a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like.
  • TOLED Transparent Organic Light Emitting Diode
  • 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 can be used to detect touch input pressure as well as touch input position and touch Enter the area.
  • the audio output module 152 may convert audio data received by the wireless communication unit 110 or stored in the memory 160 when the mobile terminal is in a call signal receiving mode, a call mode, a recording mode, a voice recognition mode, a broadcast receiving mode, and the like.
  • the audio signal is output as sound.
  • the audio output module 152 can provide audio output (eg, call signal reception sound, message reception sound, etc.) associated with a particular function performed by the mobile terminal 100.
  • the audio output module 152 can include a pickup, a buzzer, and the like.
  • the memory 160 may store a software program or the like that performs processing and control operations performed by the controller 180, or may temporarily store data (for example, a phone book, a message, a still image, a video, and the like) that has been output or is to be output. Moreover, the memory 160 can store data regarding vibrations and audio signals of various manners that are 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 (eg, SD or DX memory, etc.), a random access memory (RAM), a static random access memory (SRAM). , read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, and the like.
  • the mobile terminal 100 can cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.
  • the interface unit 170 serves as an interface through which at least one external device can connect with the mobile terminal 100.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, and an audio input/output. (I/O) port, video I/O port, headphone port, and more.
  • the identification module may be stored to verify various information used by the user using the mobile terminal 100 and may include a User Identification Module (UIM), a Customer Identification Module (SIM), a Universal Customer Identity Module (USIM), and the like.
  • the device having the identification module may take the form of a smart card, and thus the identification device may be connected to the mobile terminal 100 via a port or other connection device.
  • the interface unit 170 can be configured to receive input from an external device (eg, a data letter) The received input is transmitted to one or more components within the mobile terminal 100 or can be used to transfer data between the mobile terminal and an external device.
  • the interface unit 170 may function as a path through which power is supplied from the base to the mobile terminal 100 or may be used as a transmission of various command signals allowing input from the base to the mobile terminal 100 The path to the terminal.
  • Various command signals or power input from the base can be used as signals for identifying whether the mobile terminal is accurately mounted on the base.
  • the controller 180 typically controls the overall operation of the mobile terminal. For example, the controller 180 performs the control and processing associated with voice calls, data communications, video calls, and the like.
  • the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, which may be constructed within the controller 180 or may be configured to be separate from the controller 180.
  • the controller 180 may perform a pattern recognition process to recognize a handwriting input or an image drawing input performed on the touch screen as a character or an image.
  • the power supply unit 190 receives external power or internal power under the control of the controller 180 and provides appropriate power required to operate the various components and components.
  • the various embodiments described herein can be implemented in a computer readable medium using, for example, computer software, hardware, or any combination thereof.
  • the embodiments described herein may be through the use of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( An FPGA, a processor, a controller, a microcontroller, a microprocessor, at least one of the electronic units designed to perform the functions described herein, in some cases, such an embodiment may be at the controller 180 Implemented in the middle.
  • implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation.
  • the software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory 160 and executed by
  • a slide type mobile terminal among various types of mobile terminals such as a folding type, a bar type, a swing type, a slide type mobile terminal, and the like is taken as an example. Therefore, the present invention 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 using a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.
  • a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.
  • Such communication systems may use different air interfaces and/or physical layers.
  • air interfaces used by communication systems include, 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), etc.
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • CDMA Code Division Multiple Access
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • GSM Global System for Mobile Communications
  • the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.
  • a CDMA wireless communication system can include a plurality of mobile terminals 100, a plurality of base stations (BS) 270, a base station controller (BSC) 275, and a mobile switching center (MSC) 280.
  • the MSC 280 is configured to interface with a public switched telephone network (PSTN) 290.
  • PSTN public switched telephone network
  • the MSC 280 is also configured to interface with a BSC 275 that can be coupled to the base station 270 via a backhaul line.
  • the backhaul line can be constructed in accordance with any of a number of known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. It will be appreciated that the system as shown in FIG. 2 can include multiple BSCs 275.
  • Each BS 270 can serve one or more partitions (or regions), each of which is covered by a multi-directional antenna or an antenna directed to a particular direction radially away from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS 270 can be configured to support multiple frequency allocations, and each frequency allocation has a particular frequency spectrum (eg, 1.25 MHz, 5 MHz, etc.).
  • BS 270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology.
  • BTS Base Transceiver Subsystem
  • the term "base station” can be used to generally refer to a single BSC 275 and at least one BS 270.
  • a base station can also be referred to as a "cell station.”
  • each partition of a particular BS 270 may be referred to as a plurality of cellular stations.
  • 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. 2 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295.
  • GPS Global Positioning System
  • the satellite 300 helps locate at least one of the plurality of mobile terminals 100.
  • a plurality of satellites 300 are depicted, but it is understood that useful positioning information can be obtained using any number of satellites.
  • the GPS module 115 as shown in Figure 2 is typically configured to cooperate with the satellite 300 to obtain desired positioning information. Instead of GPS tracking technology or in addition to GPS tracking technology, other techniques that can track the location of the mobile terminal can be used. Additionally, at least one GPS satellite 300 can selectively or additionally process satellite DMB transmissions.
  • BS 270 receives reverse link signals from various mobile terminals 100.
  • Mobile terminal 100 typically participates in calls, messaging, and other types of communications.
  • Each reverse link signal received by a particular base station 270 is processed within a particular BS 270.
  • the obtained data is forwarded to the relevant BSC 275.
  • the BSC provides call resource allocation and coordinated mobility management functions including a soft handoff procedure between the BSs 270.
  • the BSC 275 also routes the received data to the MSC 280, which provides additional routing services for interfacing with the PSTN 290.
  • PSTN 290 interfaces with MSC 280, which forms an interface with BSC 275, and BSC 275 controls BS 270 accordingly to transmit forward link signals to mobile terminal 100.
  • FIG. 3 is a block diagram showing the electrical structure of the camera of FIG. 1.
  • the photographic lens 1211 is composed of a plurality of optical lenses for forming a subject image, and is a single focus lens or a zoom lens.
  • the photographic lens 1211 is movable in the optical axis direction under the control of the lens driver 1221, and the lens driver 1221 controls the focus position of the photographic lens 1211 in accordance with a control signal from the lens driving control circuit 1222, and can also be controlled in the case of the zoom lens. Focus distance.
  • the lens drive control circuit 1222 performs drive control of the lens driver 1221 in accordance with a control command from the microcomputer 1217.
  • An imaging element 1212 is disposed on the optical axis of the photographic lens 1211 near the position of the subject image formed by the photographic lens 1211.
  • the imaging element 1212 is for capturing an image of a subject and obtaining an image Image data.
  • Photodiodes constituting each pixel are arranged two-dimensionally and in a matrix on the imaging element 1212. Each photodiode generates a photoelectric conversion current corresponding to the amount of received light, and the photoelectric conversion current is charged by a capacitor connected to each photodiode.
  • the front surface of each pixel is provided with a Bayer array of RGB color filters, and among the image pickup elements 1212 are photosensitive elements such as a CMOS image sensor and a CCD image sensor.
  • the imaging element 1212 is connected to the imaging circuit 1213.
  • the imaging circuit 1213 performs charge accumulation control and image signal readout control in the imaging element 1212, and performs waveform shaping after reducing the reset noise of the read image signal (analog image signal). Further, gain improvement or the like is performed to obtain an appropriate signal level.
  • the imaging circuit 1213 is connected to an A/D converter 1214 that performs analog-to-digital conversion on the analog image signal and outputs a digital image signal (hereinafter referred to as image data) to the bus 1227.
  • A/D converter 1214 that performs analog-to-digital conversion on the analog image signal and outputs a digital image signal (hereinafter referred to as image data) to the bus 1227.
  • the bus 1227 is a transmission path for transmitting various data read or generated inside the camera.
  • the A/D converter 1214 is connected to the bus 1227, and an image processor 1215, a JPEG processor 1216, a microcomputer 1217, a SDRAM (Synchronous Dynamic Random Access Memory) 1218, and a memory interface are also connected. (hereinafter referred to as memory I/F) 1219, LCD (Liquid Crystal Display) driver 1220.
  • memory I/F memory I/F
  • LCD Liquid Crystal Display
  • the image processor 1215 performs various kinds of images such as OB subtraction processing, white balance adjustment, color matrix calculation, gamma conversion, color difference signal processing, noise removal processing, simultaneous processing, edge processing, and the like on the image data based on the output of the imaging element 1212. deal with.
  • the JPEG processor 1216 compresses the image data read out from the SDRAM 1218 in accordance with the JPEG compression method when the image data is recorded on the recording medium 1225. Further, the JPEG processor 1216 performs decompression of JPEG image data for image reproduction display.
  • the file recorded on the recording medium 1225 is read, and after the compression processing is performed in the JPEG processor 1216, the decompressed image data is temporarily stored in the SDRAM 1218 and displayed on the LCD 1226.
  • the JPEG method is adopted as the image compression and decompression method, but the compression and decompression method is adopted.
  • other compression and decompression methods such as MPEG, TIFF, and H.264 can be used.
  • the microcomputer 1217 functions as a control unit of the entire camera, and collectively controls various processing sequences of the camera.
  • the microcomputer 1217 is connected to the operation unit 1223 and the flash memory 1224.
  • the operating unit 1223 includes, but is not limited to, a physical button or a virtual button, and the entity or virtual button may be a power button, a camera button, an edit button, a dynamic image button, a reproduction button, a menu button, a cross button, an OK button, a delete button, an enlarge button
  • the operation controls such as various input buttons and various input keys detect the operational state of these operation controls.
  • the detection result is output to the microcomputer 1217. Further, a touch panel is provided on the front surface of the LCD 1226 as a display, and the touch position of the user is detected, and the touch position is output to the microcomputer 1217.
  • the microcomputer 1217 executes various processing sequences corresponding to the user's operation in accordance with the detection result from the operation position of the operation unit 1223.
  • the flash memory 1224 stores programs for executing various processing sequences of the microcomputer 1217.
  • the microcomputer 1217 performs overall control of the camera in accordance with the program. Further, the flash memory 1224 stores various adjustment values of the camera, and the microcomputer 1217 reads out the adjustment value, and performs control of the camera in accordance with the adjustment value.
  • the SDRAM 1218 is an electrically rewritable volatile memory for temporarily storing image data or the like.
  • the SDRAM 1218 temporarily stores image data output from the A/D converter 1214 and image data processed in the image processor 1215, the JPEG processor 1216, and the like.
  • the memory interface 1219 is connected to the recording medium 1225, and performs control for writing image data and a file header attached to the image data to the recording medium 1225 and reading out from the recording medium 1225.
  • the recording medium 1225 is, for example, a recording medium such as a memory card that can be detachably attached to the camera body.
  • the recording medium 1225 is not limited thereto, and may be a hard disk or the like built in the camera body.
  • the LCD driver 1210 is connected to the LCD 1226, and stores image data processed by the image processor 1215 in the SDRAM 1218.
  • the image data stored in the SDRAM 1218 is read and displayed on the LCD 1226, or the image data stored in the JPEG processor 1216 is compressed.
  • JPEG processor 1216 reads SDRAM 1218 when display is required.
  • the compressed image data is decompressed, and the decompressed image data is displayed on the LCD 1226.
  • the LCD 1226 is configured to display an image on the back of the camera body.
  • the LCD 1226 LCD is not limited thereto, and various display panels (LCD 1226) such as an organic EL may be used.
  • LCD 1226 display panels
  • the present invention is not limited thereto, and various display panels such as an organic EL may be used.
  • the embodiment of the invention provides a mobile terminal.
  • 4 is a schematic diagram of a first component structure of a mobile terminal according to an embodiment of the present invention; as shown in FIG. 4, the mobile terminal includes: a CMOS image sensing unit 41, an obtaining unit 42 and a control unit 43;
  • the acquiring unit 42 is configured to acquire an exposure time corresponding to the setting instruction when receiving the setting instruction; the exposure time corresponds to a moving speed of the captured object;
  • the control unit 43 is configured to control the CMOS image sensing unit 41 to perform global exposure according to the exposure time acquired by the acquiring unit 42 when the photographing instruction is detected.
  • the mobile terminal may be a portable intelligent terminal such as a mobile phone, a tablet computer, or smart glasses.
  • the CMOS image sensing unit 41 of the mobile terminal can be understood as the imaging element in FIG. 3; the CMOS image sensing unit 41 can adopt a rolling shutter mode or a global exposure mode.
  • the setting instruction received by the acquiring unit 42 is a setting instruction of an exposure time; the exposure time corresponds to a moving speed of the captured object.
  • the moving speed is relatively large, and the set exposure time is relatively small, for example, 1/100 second, 1/200 second, and the like.
  • the mobile terminal further includes a storage unit configured to store an exposure time set;
  • the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time; the exposure time is inversely related to a moving speed of the target object ;
  • the obtaining unit 42 is configured to query the storage unit when receiving the first setting instruction
  • the stored exposure time set obtains a first exposure time corresponding to the first setting instruction.
  • the mobile terminal may pre-configure (or manually set) an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time; wherein, the exposure time is opposite to the moving speed of the target object Correlation; for example, the exposure time is 1/100 second, the corresponding target moving speed can be 50 km/h; the exposure time is 1/200 second, and the corresponding target moving speed can be 80 km/h.
  • the exposure time is inversely related to the moving speed of the target, which means that the shorter the exposure time, the larger the moving speed of the corresponding object, and the inverse relationship between the exposure time and the moving speed of the target.
  • the setting instruction can be manually set by the user according to actual needs. For example, in an application scenario, when a user takes a scene outside the vehicle at a speed of 80 km/h, the user can manually set the gear position corresponding to the exposure time of 1/200 second; when setting the corresponding gear position, The obtaining unit 42 receives the corresponding setting instruction.
  • the CMOS image sensing unit 41 when the control unit 43 detects the photographing instruction, the CMOS image sensing unit 41 is controlled to perform global exposure according to the exposure time acquired by the acquiring unit 42. It can be understood that the CMOS image sensing unit is The global exposure mode is supported 41, and the CMOS image sensing unit 41 is already in the global exposure mode before the photographing instruction is detected.
  • the acquiring unit 42 and the control unit 43 in the mobile terminal may be used by a central processing unit (CPU, Central Processing Unit) and a digital signal processor (DSP, Digital) in the mobile terminal.
  • CPU Central Processing Unit
  • DSP Digital
  • a Signal Processor or a Field-Programmable Gate Array (FPGA) is implemented; the CMOS sensing unit in the mobile terminal can be implemented by a CMOS sensor in practical applications.
  • the technical solution of the embodiment of the invention is convenient for the user to set the upper limit of the exposure time in the global exposure mode when the mobile terminal is used to capture the object with high speed movement, so that the captured object is not easily deformed, and the shooting experience of the user is improved. .
  • FIG. 5 is a mobile terminal according to an embodiment of the present invention.
  • the second component structure diagram of the terminal as shown in FIG. 5, the mobile terminal includes: a CMOS image sensing unit 41, an electronic black card 44, an obtaining unit 42 and a control unit 43; the electronic black card 44 is disposed in the a light incident side of the CMOS image sensing unit 41; the electronic black card 44 is in a transparent state in a power down state, so that light enters the CMOS image sensing unit 41 via the electronic black card 44; the electronic black The card 44 is in a non-transmissive state in a powered state to block light entering the CMOS image sensing unit 41;
  • the acquiring unit 42 is configured to acquire an exposure time corresponding to the setting instruction when receiving the setting instruction; the exposure time corresponds to a moving speed of the captured object;
  • the control unit 43 is configured to obtain a state of the electronic black card 44 when the photographing instruction is detected, and to control the electronic black card 44 to be powered off when the state of the electronic black card 44 is in a powered state. a state for causing the CMOS image sensing unit 41 to perform global exposure; and controlling the CMOS image sensing unit 41 to perform global exposure according to an exposure time acquired by the acquisition unit 42.
  • the mobile terminal may be a portable intelligent terminal such as a mobile phone, a tablet computer, or smart glasses.
  • the CMOS image sensing unit 41 of the mobile terminal can be understood as the imaging element in FIG. 3; the CMOS image sensing unit 41 can adopt a rolling shutter mode or a global exposure mode.
  • the mobile terminal is provided with an electronic black card 44; the electronic black card 44 may be disposed on the light incident side of the CMOS image sensing unit 41, or may be fixed to the CMOS image sensing unit 41 by a fixing device.
  • the light incident side, or disposed inside the CMOS image sensing unit 41, can be set by a person skilled in the art as needed.
  • the electronic black card 44 may be a liquid crystal panel or a transparent electronic film.
  • the liquid crystal panel or the transparent electronic film may be disposed on the light incident side of the CMOS image sensing unit 41, or may be fixed to the CMOS image sensing unit by a fixing device.
  • the display panel of the liquid crystal panel or the transparent electronic film can be changed by power-on to make the liquid crystal panel or the transparent electronic film in a non-transparent state. It can be understood that the electronic black card 44 can also adopt other light transmissive materials to achieve It transmits light in an electric state and is opaque in a power-on state.
  • different current magnitudes loaded on the electronic black card 44 correspond to different transmittances of the electronic black card 44; it can be understood that the smaller the current loaded on the electronic black card 44, the electronic black The higher the light transmittance of the card 44, the closer the electronic black card 44 is to transparency; the greater the current loaded on the electronic black card 44, the lower the light transmittance of the electronic black card 44, the electronic black The card 44 is closer to opaque.
  • the mobile terminal provided in this embodiment is provided with an electronic black card 44 on the light incident side of the CMOS image sensing unit 41 of the mobile terminal, and the electronic black card 44 is in a transparent state when the power is off, so that the light can enter the CMOS image sensing unit. 41.
  • the electronic black card 44 In the non-transparent state at the time of power-on, blocking the light entering the CMOS image sensing unit 41, only the electronic black card 44 needs to be powered down when the mobile terminal performs global exposure, and the electronic black card 44 is turned off at the end of the exposure. Power-on, to read the pixel data after exposure, because the power-on process is fast, the switching duration is negligible, there will be no delay and uneven exposure, and the electronic black card will be powered on and off.
  • the control of the electronic black card 44 is very small, and the service life is longer than that of the mechanical shutter.
  • the electronic black card 44 When the electronic black card 44 is in the power-down state, that is, when the electronic black card 44 is in the transparent state, all the light on the light-input side enters the CMOS image sensing unit 41, that is, the photosensitive light corresponding to all the pixels in the CMOS image sensing unit 41.
  • the components can be sensitized for exposure operation to achieve global exposure. In the global exposure, the exposure is relatively uniform due to the simultaneous exposure of each pixel and the same exposure duration.
  • the setting instruction received by the acquiring unit 42 is a setting instruction of an exposure time; the exposure time corresponds to a moving speed of the captured object.
  • the moving speed is relatively large, and the set exposure time is relatively small, for example, 1/100 second, 1/200 second, and the like.
  • the mobile terminal further includes a storage unit configured to store an exposure time set;
  • the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time; the exposure time is inversely related to a moving speed of the target object ;
  • the acquiring unit 42 is configured to query the exposure time set stored by the storage unit when the first setting instruction is received, and obtain the first exposure time corresponding to the first setting instruction.
  • the mobile terminal may pre-configure (or manually set) an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time; wherein, the exposure time is opposite to the moving speed of the target object Correlation; for example, the exposure time is 1/100 second, the corresponding target moving speed can be 50 km/h; the exposure time is 1/200 second, and the corresponding target moving speed can be 80 km/h.
  • the exposure time is inversely related to the moving speed of the target, which means that the shorter the exposure time, the larger the moving speed of the corresponding object, and the inverse relationship between the exposure time and the moving speed of the target.
  • the setting instruction can be manually set by the user according to actual needs. For example, in an application scenario, when a user takes a scene outside the vehicle at a speed of 80 km/h, the user can manually set the gear position corresponding to the exposure time of 1/200 second; when setting the corresponding gear position, The obtaining unit 42 receives the corresponding setting instruction.
  • the CMOS image sensing unit 41 when the control unit 43 detects the photographing instruction, the CMOS image sensing unit 41 is controlled to perform global exposure according to the exposure time acquired by the acquiring unit 42. It can be understood that the CMOS image sensing unit is The global exposure mode is supported 41, and the CMOS image sensing unit 41 is already in the global exposure mode before the photographing instruction is detected.
  • control unit 43 controls the electronic black card 44 to be powered on when the acquired exposure time is reached.
  • the electronic black card 44 is powered on, the electronic black card 44 is in a non-transparent state, and the light on the light-incident side cannot enter the CMOS image sensor, that is, the exposure is stopped, and since the power-on speed is very fast, it is guaranteed that all of the exposure data is read before the exposure data is read.
  • the pixels are stopped to achieve exposure, and the exposure of all the pixels is consistent, so as to avoid uneven exposure.
  • control module is further configured to control the electronic black card 44 to be powered on when receiving a shutter close command; or to control the electronic black card 44 when receiving a shutter open command Electricity.
  • the user can manually control the power-on and power-down of the electronic black card 44 to achieve the opening and closing of the global shutter.
  • the user can open the door through the virtual control on the mobile terminal display interface, the physical button on the mobile terminal or the gesture and the voice trigger.
  • the command and shutter open command are turned off to achieve active control of the shutter, making the photographing process more flexible.
  • the mobile terminal further includes a detecting unit configured to detect a preview image acquired by the CMOS image sensing unit, and identify the first image in the preview image a first display parameter of the region; the first region being any one of the preview images;
  • the control unit 43 is further configured to control the first electronic black card corresponding to the first area to be powered on based on the first display parameter obtained by the detecting unit.
  • the detecting unit of the mobile terminal is configured to detect a preview image acquired by the CMOS image sensing unit 41, and identify display parameters of respective regions in the preview image. It can be understood that the detecting unit divides the image capturing area of the CMOS image sensing unit 41 into a plurality of sub-areas in advance according to a combination manner of the plurality of electronic black cards, so that each electronic black card 44 corresponds to A sub-area.
  • the display parameter may be a parameter that characterizes brightness, such as a brightness value.
  • the control unit 43 controls the first electronic black card corresponding to the first area to be powered on based on the first display parameter obtained by the detecting unit, and the current corresponding to the electronic black card is different.
  • the transmittance of the electronic black card is different. It can be understood that the smaller the current loaded on the electronic black card, the higher the light transmittance of the electronic black card, and the closer the electronic black card is to the transparent; The higher the current on the electronic black card, the lower the light transmittance of the electronic black card, the closer the electronic black card is to opacity; the current of each electronic black card can be independently controlled to adjust the The brightness of the first area; of course, the control unit 43 can also control the first electronic black card corresponding to the first area to be powered down, to achieve brightness adjustment of the local area in the image, to avoid image
  • the problem of poor picture quality caused by overexposed partial areas enhances the user's shooting experience.
  • the control unit 43 is further configured to: when the first electronic black card corresponding to the first area is powered on, the first display parameter based on the first area and other areas except the first area
  • the display parameter adaptively adjusts a power-on current of the first electronic black card; wherein the first electronic black card is any one of the plurality of electronic black cards.
  • the control unit 43 adaptively adjusts the power-on current of the electronic black card corresponding to each area based on the relative relationship between the display parameters of the respective regions in the preview image.
  • the control unit 43 controls the first electronic black card corresponding to the first region and the second electronic black corresponding to the second region
  • the currents of the first electronic black card and the second electronic black card may be controlled to be different according to different brightness values of the first region and the second region, so that the control entry corresponds to the The light of the CMOS image sensing unit 41 of the first area and the second area is different.
  • the brightness of different areas in the image can be adjusted, the brightness adjustment of the local area in the image can be realized, and the problem of poor image quality caused by overexposure of the local area in the image can be avoided;
  • the adjustment method can improve the quality of the image and improve the user's shooting experience.
  • the detecting unit, the obtaining unit 42 and the control unit 43 in the mobile terminal can be implemented by a CPU, a DSP or an FPGA in the mobile terminal in actual applications; CMOS sensing in the mobile terminal
  • the unit can be implemented by a CMOS sensor in practical applications.
  • FIG. 4 and FIG. 5 are merely exemplary diagrams of one embodiment, and the exposure of the mobile terminal shown in FIG. 4 and FIG. 5 by those skilled in the art.
  • Functional modules of the device which can be easily supplemented by new functional modules;
  • the name of the energy module is a custom name, which is only used to assist in understanding the various program function blocks of the exposure apparatus of the mobile terminal, and is not used to define the technical solution of the present invention.
  • the core of the technical solution of the present invention is that the function modules of the respective defined names are required. The function achieved.
  • the technical solution of the embodiment of the invention is convenient for the user to set the upper limit of the exposure time in the global exposure mode when the mobile terminal is used to capture the object with high speed movement, so that the captured object is not easily deformed, and the shooting experience of the user is improved. .
  • Embodiments of the present invention also provide an exposure method, which is applied to a mobile terminal; the mobile terminal includes a CMOS image sensing unit.
  • FIG. 6 is a schematic flowchart of an exposure method according to an embodiment of the present invention; as shown in FIG. 6, the method includes:
  • Step 601 Acquire an exposure time corresponding to the setting instruction when receiving the setting instruction; the exposure time corresponds to a moving speed of the captured object.
  • Step 602 When the photographing instruction is detected, the CMOS image sensing unit is controlled to perform global exposure according to the exposure time.
  • the received setting command is a setting command of an exposure time; the exposure time corresponds to a moving speed of the captured object.
  • the moving speed is relatively large, and the set exposure time is relatively small, for example, 1/100 second, 1/200 second, and the like.
  • the method before the obtaining the exposure time corresponding to the setting instruction, the method further includes: setting and storing an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time;
  • acquiring the exposure time corresponding to the setting instruction comprises: querying the exposure time set when receiving the first setting instruction, and obtaining the first exposure corresponding to the first setting instruction time.
  • the mobile terminal may be pre-configured (or manually preset) an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time;
  • the exposure time is inversely related to the moving speed of the target; for example, the exposure time is 1/100 second, the moving speed of the corresponding target may be 50 km/h; the exposure time is 1/200 second, corresponding to the target
  • the moving speed can be 80 km / h.
  • the exposure time is inversely related to the moving speed of the target, which means that the shorter the exposure time, the larger the moving speed of the corresponding object, and the inverse relationship between the exposure time and the moving speed of the target.
  • the setting instruction can be manually set by the user according to actual needs. For example, in an application scenario, when a user takes a scene outside the vehicle at a speed of 80 km/h, the user can manually set the gear position corresponding to the exposure time of 1/200 second; when setting the corresponding gear position, The acquiring unit receives a corresponding setting instruction.
  • the CMOS image sensing unit when the photographing instruction is detected, the CMOS image sensing unit is controlled to perform global exposure according to the acquired exposure time. It can be understood that the CMOS image sensing unit supports the global exposure mode before the photographing instruction is detected. The CMOS image sensing unit is already in the global exposure mode. That is, before the controlling the CMOS image sensing unit to perform global exposure according to the exposure time, the method further includes: detecting a mode setting instruction, and controlling the CMOS image sensing unit to be in a global exposure based on the mode setting instruction mode.
  • the technical solution of the embodiment of the invention is convenient for the user to set the upper limit of the exposure time in the global exposure mode when the mobile terminal is used to capture the object with high speed movement, so that the captured object is not easily deformed, and the shooting experience of the user is improved. .
  • An embodiment of the present invention further provides an exposure method, where the exposure method is applied to a mobile terminal; the mobile terminal includes a CMOS image sensing unit and an electronic black card; and the electronic black card is disposed in the CMOS image sensing The light-incident side of the unit; the electronic black card is in a transparent state in a power-off state; and the electronic black card is in a non-transparent state in a power-on state.
  • FIG. 7 is another schematic flowchart of an exposure method according to an embodiment of the present invention; as shown in FIG. 7, the method includes:
  • Step 701 Acquire an exposure time corresponding to the setting instruction when receiving the setting instruction; the exposure time corresponds to a moving speed of the captured object.
  • Step 702 When the photographing instruction is detected, obtaining a state of the electronic black card; when the state of the electronic black card is a power-on state, controlling the electronic black card to switch to a power-down state, and controlling the CMOS image
  • the sensing unit performs global exposure according to the exposure time to cause the CMOS image sensing unit to perform global exposure.
  • an electronic black card is disposed on the light incident side of the CMOS image sensing unit of the mobile terminal, and the electronic black card is in a transparent state when the power is off, so that the light can enter the CMOS image sensing unit and is in power-on state.
  • the non-transparent state blocking the light entering the CMOS image sensing unit, only needs to power down the electronic black card when the mobile terminal performs global exposure, and powers up the electronic black card at the end of the exposure to perform the exposed pixel.
  • the reading of the data because the power-on process is fast, the switching duration is negligible, there is no delay leading to uneven exposure, and the control of the electronic black card by power-on and power-down is very small for the electronic black card. Longer life than mechanical shutters.
  • the electronic black card When the electronic black card is in a power-down state, that is, when the electronic black card is in a transparent state, all light on the light-incident side enters the CMOS image sensing unit, that is, the photosensitive elements corresponding to all the pixel points in the CMOS image sensing unit can be photosensitive.
  • the global exposure In order to perform the exposure operation, the global exposure is realized. In the global exposure, since the respective pixels are simultaneously exposed and the exposure time is the same, the exposure is relatively uniform.
  • the received setting command is a setting command of an exposure time; the exposure time corresponds to a moving speed of the captured object.
  • the moving speed is relatively large, and the set exposure time is relatively small, for example, 1/100 second, 1/200 second, and the like.
  • the method before the obtaining the exposure time corresponding to the setting instruction, the method further includes: setting and storing an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time;
  • acquiring the exposure time corresponding to the setting instruction comprises: querying the exposure time set when receiving the first setting instruction, and obtaining the first exposure corresponding to the first setting instruction time.
  • the mobile terminal may pre-configure (or manually set) an exposure time set; the exposure time set includes a correspondence between at least two sets of setting instructions and an exposure time; wherein, the exposure time is opposite to the moving speed of the target object Correlation; for example, the exposure time is 1/100 second, the corresponding target moving speed can be 50 km/h; the exposure time is 1/200 second, and the corresponding target moving speed can be 80 km/h.
  • the exposure time is inversely related to the moving speed of the target, which means that the shorter the exposure time, the larger the moving speed of the corresponding object, and the inverse relationship between the exposure time and the moving speed of the target.
  • the setting instruction can be manually set by the user according to actual needs. For example, in an application scenario, when a user takes a scene outside the vehicle at a speed of 80 km/h, the user can manually set the gear position corresponding to the exposure time of 1/200 second; when setting the corresponding gear position, The acquiring unit receives a corresponding setting instruction.
  • the CMOS image sensing unit when the photographing instruction is detected, the CMOS image sensing unit is controlled to perform global exposure according to the acquired exposure time. It can be understood that the CMOS image sensing unit supports the global exposure mode before the photographing instruction is detected. The CMOS image sensing unit is already in the global exposure mode. That is, before the controlling the CMOS image sensing unit to perform global exposure according to the exposure time, the method further includes: detecting a mode setting instruction, and controlling the CMOS image sensing unit to be in a global exposure based on the mode setting instruction mode.
  • the electronic black card when the acquired exposure time reaches, the electronic black card is controlled to be powered on.
  • the electronic black card When the electronic black card is powered on, the electronic black card is in a non-transparent state, and the light on the light-incident side cannot enter the CMOS image sensor, that is, the exposure is stopped, and since the power-on speed is very fast, all the pixels before the exposure data is read can be guaranteed.
  • the exposure is stopped, the exposure of all the pixels can be consistent, and the uneven exposure can be avoided.
  • step 701 the method further includes: step 700: controlling the electronic black card to be powered down when receiving the shutter open command; or, after step 702, further comprising: step 703: receiving the shutter When the instruction is turned off, the electronic black card is controlled to be powered on.
  • the user can manually control the electronic black card. Power-on and power-down to turn the global shutter on and off.
  • the user can use the virtual control on the mobile terminal display interface, the physical button or gesture on the mobile terminal, and the voice triggering the door open command and the shutter open command to realize active control of the shutter, so that the photographing process is more flexible.
  • the number of the electronic black cards is multiple; before the detecting the photographing instruction, the method further includes: detecting a preview image acquired by the CMOS image sensing unit, and identifying the preview image The first display parameter of the first area; the first area is any one of the preview images; and the first electronic black card corresponding to the first area is controlled to be powered based on the first display parameter.
  • the mobile terminal detects a preview image acquired by the CMOS image sensing unit, and identifies display parameters of each region in the preview image.
  • the image collection area of the CMOS image sensing unit is divided into a plurality of sub-areas in advance according to a combination manner of the plurality of electronic black cards, so that each electronic black card corresponds to one sub-area.
  • the display parameter may be a parameter that characterizes brightness, such as a brightness value.
  • the first electronic black card corresponding to the first area is powered on based on the obtained first display parameter, and the light transmittance of the electronic black card is different due to different currents loaded on the electronic black card.
  • the smaller the current loaded on the electronic black card the higher the light transmittance of the electronic black card, the closer the electronic black card is to transparency; the larger the current loaded on the electronic black card
  • the lower the light transmittance of the electronic black card the closer the electronic black card is to opacity; the current of each electronic black card can be independently controlled to adjust the brightness of the first region to realize the image.
  • the brightness adjustment of the local area avoids the problem of poor picture quality caused by overexposure of the local area in the image, and improves the user's shooting experience.
  • the first electronic device corresponding to the first region is controlled based on the first display parameter
  • the method further includes: adaptively adjusting the first electronic black card based on the first display parameter of the first area and display parameters of other areas than the first area An electric current; wherein the first electronic black card is any one of the plurality of electronic black cards.
  • the technical solution of the embodiment of the invention is convenient for the user to set the upper limit of the exposure time in the global exposure mode when the mobile terminal is used to capture the object with high speed movement, so that the captured object is not easily deformed, and the shooting experience of the user is improved. .
  • the mobile terminal includes a processor 71, a storage medium 72, a CMOS sensor 74, and at least one external communication interface 73;
  • the processor 71, the storage medium 72, the CMOS sensor 74, and the external communication interface 73 are all connected by a bus 75.
  • test control method is similar to the above description of the test control device, and the description of the beneficial effects of the device will not be repeated.
  • test control device of the present invention please refer to the description of the embodiment of the test control device of the present invention.
  • FIG. 9a and 9b are schematic diagrams of images acquired before and after the exposure method according to the embodiment of the present invention
  • FIG. 9a a schematic diagram of an image acquired before the exposure method of the embodiment of the present invention is used for the mobile terminal, which can be seen from the figure. It is a serious deformation when shooting a high-speed moving object (a moving vehicle as shown in the figure), and even the shape of the object is blurred.
  • FIG. 9b a schematic diagram of an image acquired after the exposure method of the embodiment of the present invention is used for the mobile terminal.
  • the exposure time is set online, and the global exposure is adopted.
  • the mode captures the image, and the objects in the image are basically not deformed, which greatly improves the quality of the image of the high-speed object and improves the user's shooting experience.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage device includes the following steps: the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk.
  • optical disk A medium that can store program code.
  • the above integrated unit of the present invention is implemented in the form of a software functional module and Separate products can also be stored on a computer readable storage medium when sold or used.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.
  • the embodiment of the invention can facilitate the user to set the upper limit of the exposure time in the global exposure mode when the high-speed moving object is used by the mobile terminal, so that the captured object is not easily deformed, and the shooting experience of the user is improved.

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Abstract

本发明实施例公开了一种移动终端及其曝光方法、计算机存储介质；所述移动终端包括：互补金属氧化物半导体(CMOS)图像传感单元、获取单元和控制单元；其中，所述获取单元，配置为在接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度；所述控制单元，配置为检测到拍照指令时，控制所述CMOS图像传感单元按所述曝光时间进行全局曝光。采用本发明实施例的技术方案，便于用户在使用移动终端拍摄高速运动的物体时，通过在全局曝光模式下对曝光时间上限进行设定，实现拍摄出的物体不易变形，提升了用户的拍摄体验。

Description

一种移动终端及其曝光方法、计算机存储介质 技术领域
本发明涉及拍照技术领域，具体涉及一种移动终端及其曝光方法、计算机存储介质。
背景技术
现有的许多移动终端(例如手机等)采用CMOS(Complementary Metal-Oxide Semiconductor，互补金属氧化物半导体)图像传感器作为镜头；而许多CMOS图像传感器采用卷帘快门曝光模式(像素点逐行曝光)，在这种曝光模式下，拍摄高速运动的物体会产生明显的变形，这不利于用户的拍摄体验。
发明内容
为解决现有存在的技术问题，本发明实施例提供一种移动终端及其曝光方法，能够解决拍摄高速运动的物体产生形变的问题，提升用户的拍摄体验。
为达到上述目的，本发明实施例的技术方案是这样实现的：
本发明实施例提供了一种移动终端，所述移动终端包括：CMOS图像传感单元、获取单元和控制单元；其中，
所述获取单元，配置为在接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度；
所述控制单元，配置为检测到拍照指令时，控制所述CMOS图像传感单元按所述曝光时间进行全局曝光。
在另一实施例中，所述移动终端还包括存储单元，配置为存储曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系； 其中，曝光时间与目标物的移动速度反相关；
所述获取单元，配置为接收到第一设置指令时，查询所述存储单元存储的曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
在另一实施例中，所述移动终端还包括电子黑卡，所述电子黑卡设置在所述CMOS图像传感单元的入光侧；
所述电子黑卡在掉电状态下为透明状态，以使光线经所述电子黑卡进入所述CMOS图像传感单元；所述电子黑卡在上电状态下为非透光状态，以遮挡进入所述CMOS图像传感单元的光线。
在另一实施例中，所述控制单元，还配置为检测到拍照指令时，获得所述电子黑卡的状态；当所述电子黑卡的状态为上电状态时，控制所述电子黑卡切换至掉电状态，以使所述CMOS图像传感单元进行全局曝光。
在另一实施例中，所述控制模块，还配置为在接收到快门关闭指令时，控制所述电子黑卡上电；或者，在接收到快门开启指令时，控制所述电子黑卡掉电。
在另一实施例中，所述曝光时间与所述目标物的移动速度反相关。
在另一实施例中，所述电子黑卡设置于所述CMOS图像传感单元的入光侧的表面，或者固定于所述CMOS图像传感单元的入光侧，或者设置于所述CMOS图像传感单元的内部。
在另一实施例中，加载在所述电子黑卡上的电流不同对应所述电子黑卡的透光率不同。
在另一实施例中，所述电子黑卡的数量为多个；所述移动终端还包括检测单元，配置为检测所述CMOS图像传感单元采集的预览图像，识别所述预览图像中的第一区域的第一显示参数；所述第一区域为所述预览图像中的任一区域；
所述控制单元，还配置为基于所述检测单元获得的第一显示参数控制所述第一区域对应的第一电子黑卡上电。
在另一实施例中，所述控制单元，还配置为控制所述第一区域对应的第一电子黑卡上电时，基于所述第一区域的第一显示参数和除所述第一区域以外的其他区域的显示参数，自适应调整所述第一电子黑卡的上电电流；其中，所述第一电子黑卡为所述多个电子黑卡中的任一电子黑卡。
本发明实施例还提供了一种曝光方法，应用于移动终端中；所述移动终端包括CMOS图像传感单元；所述方法包括：
接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度；
检测到拍照指令时，控制所述CMOS图像传感单元按所述曝光时间进行全局曝光。
在另一实施例中，所述获取所述设置指令对应的曝光时间之前，所述方法还包括：设置并存储曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；
相应的，所述接收到设置指令时，获取所述设置指令对应的曝光时间，包括：
接收到第一设置指令时，查询所述曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
在另一实施例中，所述控制所述CMOS图像传感单元按所述曝光时间进行全局曝光之前，所述方法还包括：
检测到模式设置指令，基于所述模式设置指令控制所述CMOS图像传感单元处于全局曝光模式。
在另一实施例中，所述移动终端还包括电子黑卡，所述电子黑卡设置在所述CMOS图像传感单元的入光侧；所述电子黑卡在掉电状态下为透明状态；所述电子黑卡在上电状态下为非透光状态；
所述控制按所述曝光时间进行全局曝光之前，所述方法还包括：检测到拍照指令时，获得所述电子黑卡的状态；当所述电子黑卡的状态为上电 状态时，控制所述电子黑卡切换至掉电状态，以使所述CMOS图像传感单元进行全局曝光。
在另一实施例中，所述移动终端还包括电子黑卡，所述电子黑卡设置在所述CMOS图像传感单元的入光侧；所述电子黑卡在掉电状态下为透明状态；所述电子黑卡在上电状态下为非透光状态；
所述方法还包括：接收到快门关闭指令时，控制所述电子黑卡上电；或者，在接收到快门开启指令时，控制所述电子黑卡掉电。
在另一实施例中，加载在所述电子黑卡上的电流不同对应所述电子黑卡的透光率不同。
在另一实施例中，所述电子黑卡的数量为多个；所述检测到拍照指令之前，所述方法还包括：
检测所述CMOS图像传感单元采集的预览图像，识别所述预览图像中的第一区域的第一显示参数；所述第一区域为所述预览图像中的任一区域；
基于所述第一显示参数控制所述第一区域对应的第一电子黑卡上电。
在另一实施例中，所述基于所述第一显示参数控制所述第一区域对应的第一电子黑卡上电时，所述方法还包括：
基于所述第一区域的第一显示参数和除所述第一区域以外的其他区域的显示参数，自适应调整所述第一电子黑卡的上电电流；其中，所述第一电子黑卡为所述多个电子黑卡中的任一电子黑卡。
在另一实施例中，所述曝光时间与所述目标物的移动速度反相关。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令配置为执行本发明实施例所述的曝光方法。
本发明实施例提供的移动终端及其曝光方法、计算机存储介质，所述移动终端包括：CMOS图像传感单元、获取单元和控制单元；其中，所述获取单元，配置为在接收到设置指令时，获取所述设置指令对应的曝光时 间；所述曝光时间对应于拍摄的目标物的移动速度；所述控制单元，配置为检测到拍照指令时，控制所述CMOS图像传感单元按所述第一曝光时间进行全局曝光。如此，采用本发明实施例的技术方案，便于用户在使用移动终端拍摄高速运动的物体时，通过在全局曝光模式下对曝光时间上限进行设定，实现拍摄出的物体不易变形，提升了用户的拍摄体验。
附图说明
图1为实现本发明各个实施例的一个可选的移动终端的硬件结构示意图；
图2为如图1所示的移动终端的无线通信系统示意图；
图3为图1中相机的电气结构框图；
图4为本发明实施例的移动终端的第一种组成结构示意图；
图5为本发明实施例的移动终端的第二种组成结构示意图；
图6为本发明实施例的曝光方法的一种流程示意图；
图7为本发明实施例的曝光方法的另一种流程示意图；
图8为本发明实施例的移动终端作为硬件实体的一种示意图；
图9a和图9b分别为采用本发明实施例曝光方法之前和之后采集的图像示意图；
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
现在将参考附图描述实现本发明各个实施例的移动终端。在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为 了有利于本发明的说明，其本身并没有特定的意义。因此，“模块”与“部件”可以混合地使用。
移动终端可以以各种形式来实施。例如，本发明中描述的终端可以包括诸如移动电话、智能电话、笔记本电脑、数字广播接收器、PDA(个人数字助理)、PAD(平板电脑)、PMP(便携式多媒体播放器)、导航装置等等的移动终端以及诸如数字TV、台式计算机等等的固定终端。下面，假设终端是移动终端。然而，本领域技术人员将理解的是，除了特别用于移动目的的元件之外，根据本发明的实施方式的构造也能够应用于固定类型的终端。
图1为实现本发明各个实施例一可选的移动终端的硬件结构示意。
移动终端100可以包括无线通信单元110、A/V(音频/视频)输入单元120、用户输入单元130、超声波装置140、输出单元150、存储器160、接口单元170、控制器180和电源单元190等等。图1示出了具有各种组件的移动终端，但是应理解的是，并不要求实施所有示出的组件。可以替代地实施更多或更少的组件。将在下面详细描述移动终端的元件。
无线通信单元110通常包括一个或多个组件，其允许移动终端100与无线通信装置或网络之间的无线电通信。例如，无线通信单元可以包括广播接收模块111和移动通信模块112中的至少一个。
广播接收模块111经由广播信道从外部广播管理服务器接收广播信号和/或广播相关信息。广播信道可以包括卫星信道和/或地面信道。广播管理服务器可以是生成并发送广播信号和/或广播相关信息的服务器或者接收之前生成的广播信号和/或广播相关信息并且将其发送给终端的服务器。广播信号可以包括TV广播信号、无线电广播信号、数据广播信号等等。而且，广播信号可以进一步包括与TV或无线电广播信号组合的广播信号。广播相关信息也可以经由移动通信网络提供，并且在该情况下，广播相关信息可以由移动通信模块112来接收。广播信号可以以各种形式存在，例如，其可以以数字多媒体广播(DMB)的电子节目指南(EPG)、数字视频广播手持 (DVB-H)的电子服务指南(ESG)等等的形式而存在。广播接收模块111可以通过使用各种类型的广播装置接收信号广播。特别地，广播接收模块111可以通过使用诸如多媒体广播-地面(DMB-T)、数字多媒体广播-卫星(DMB-S)、数字视频广播-手持(DVB-H)，前向链路媒体(MediaFLO@)的数据广播装置、地面数字广播综合服务(ISDB-T)等等的数字广播装置接收数字广播。广播接收模块111可以被构造为适合提供广播信号的各种广播装置以及上述数字广播装置。经由广播接收模块111接收的广播信号和/或广播相关信息可以存储在存储器160(或者其它类型的存储介质)中。
移动通信模块112将无线电信号发送到基站(例如，接入点、节点B等等)、外部终端以及服务器中的至少一个和/或从其接收无线电信号。这样的无线电信号可以包括语音通话信号、视频通话信号、或者根据文本和/或多媒体消息发送和/或接收的各种类型的数据。
A/V输入单元120用于接收音频或视频信号。A/V输入单元120可以包括相机121和麦克风122，相机121对在视频捕获模式或图像捕获模式中由图像捕获装置获得的静态图像或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元151上。经相机121处理后的图像帧可以存储在存储器160(或其它存储介质)中或者经由无线通信单元110进行发送，可以根据移动终端的构造提供两个或更多相机121。麦克风122可以在电话通话模式、记录模式、语音识别模式等等运行模式中经由麦克风接收声音(音频数据)，并且能够将这样的声音处理为音频数据。处理后的音频(语音)数据可以在电话通话模式的情况下转换为可经由移动通信模块112发送到移动通信基站的格式输出。麦克风122可以实施各种类型的噪声消除(或抑制)算法以消除(或抑制)在接收和发送音频信号的过程中产生的噪声或者干扰。
用户输入单元130可以根据用户输入的命令生成键输入数据以控制移动终端的各种操作。用户输入单元130允许用户输入各种类型的信息，并且可以包括键盘、锅仔片、触摸板(例如，检测由于被接触而导致的电阻、 压力、电容等等的变化的触敏组件)、滚轮、摇杆等等。特别地，当触摸板以层的形式叠加在显示单元151上时，可以形成触摸屏。
电子黑卡140设置于相机中的CMOS传感器的入光侧，该电子黑卡在掉电时处于透明状态使得光线可以进入CMOS图像传感器，在上电时处于非透明状态，遮挡进入CMOS图像传感器的光线，则在移动终端进行全局曝光时仅需要对电子黑卡掉电，并在曝光结束时对电子黑卡上电，以进行曝光后的像素点数据的读取，该电子黑卡可通过液晶面板或者透明电子薄膜实现。
输出单元150被构造为以视觉、音频和/或触觉方式提供输出信号(例如，音频信号、视频信号、警报信号、振动信号等等)。输出单元150可以包括显示单元151和音频输出模块152等等。
显示单元151可以显示在移动终端100中处理的信息。例如，当移动终端100处于电话通话模式时，显示单元151可以显示与通话或其它通信(例如，文本消息收发、多媒体文件下载等等)相关的用户界面(UI)或图形用户界面(GUI)。当移动终端100处于视频通话模式或者图像捕获模式时，显示单元151可以显示捕获的图像和/或接收的图像、示出视频或图像以及相关功能的UI或GUI等等。
同时，当显示单元151和触摸板以层的形式彼此叠加以形成触摸屏时，显示单元151可以用作输入装置和输出装置。显示单元151可以包括液晶显示器(LCD)、薄膜晶体管LCD(TFT-LCD)、有机发光二极管(OLED)显示器、柔性显示器、三维(三维)显示器等等中的至少一种。这些显示器中的一些可以被构造为透明状以允许用户从外部观看，这可以称为透明显示器，典型的透明显示器可以例如为TOLED(透明有机发光二极管)显示器等等。根据特定想要的实施方式，移动终端100可以包括两个或更多显示单元(或其它显示装置)，例如，移动终端可以包括外部显示单元(未示出)和内部显示单元(未示出)。触摸屏可用于检测触摸输入压力以及触摸输入位置和触摸 输入面积。
音频输出模块152可以在移动终端处于呼叫信号接收模式、通话模式、记录模式、语音识别模式、广播接收模式等等模式下时，将无线通信单元110接收的或者在存储器160中存储的音频数据转换音频信号并且输出为声音。而且，音频输出模块152可以提供与移动终端100执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出模块152可以包括拾音器、蜂鸣器等等。
存储器160可以存储由控制器180执行的处理和控制操作的软件程序等等，或者可以暂时地存储已经输出或将要输出的数据(例如，电话簿、消息、静态图像、视频等等)。而且，存储器160可以存储关于当触摸施加到触摸屏时输出的各种方式的振动和音频信号的数据。
存储器160可以包括至少一种类型的存储介质，存储介质包括闪存、硬盘、多媒体卡、卡型存储器(例如，SD或DX存储器等等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等等。而且，移动终端100可以与通过网络连接执行存储器160的存储功能的网络存储装置协作。
接口单元170用作至少一个外部装置与移动终端100连接可以通过的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。识别模块可以是存储用于验证用户使用移动终端100的各种信息并且可以包括用户识别模块(UIM)、客户识别模块(SIM)、通用客户识别模块(USIM)等等。另外，具有识别模块的装置(下面称为“识别装置”)可以采取智能卡的形式，因此，识别装置可以经由端口或其它连接装置与移动终端100连接。接口单元170可以用于接收来自外部装置的输入(例如，数据信 息、电力等等)并且将接收到的输入传输到移动终端100内的一个或多个元件或者可以用于在移动终端和外部装置之间传输数据。
另外，当移动终端100与外部底座连接时，接口单元170可以用作允许通过其将电力从底座提供到移动终端100的路径或者可以用作允许从底座输入的各种命令信号通过其传输到移动终端的路径。从底座输入的各种命令信号或电力可以用作用于识别移动终端是否准确地安装在底座上的信号。
控制器180通常控制移动终端的总体操作。例如，控制器180执行与语音通话、数据通信、视频通话等等相关的控制和处理。另外，控制器180可以包括用于再现(或回放)多媒体数据的多媒体模块181，多媒体模块181可以构造在控制器180内，或者可以构造为与控制器180分离。控制器180可以执行模式识别处理，以将在触摸屏上执行的手写输入或者图像绘制输入识别为字符或图像。
电源单元190在控制器180的控制下接收外部电力或内部电力并且提供操作各元件和组件所需的适当的电力。
这里描述的各种实施方式可以以使用例如计算机软件、硬件或其任何组合的计算机可读介质来实施。对于硬件实施，这里描述的实施方式可以通过使用特定用途集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理装置(DSPD)、可编程逻辑装置(PLD)、现场可编程门阵列(FPGA)、处理器、控制器、微控制器、微处理器、被设计为执行这里描述的功能的电子单元中的至少一种来实施，在一些情况下，这样的实施方式可以在控制器180中实施。对于软件实施，诸如过程或功能的实施方式可以与允许执行至少一种功能或操作的单独的软件模块来实施。软件代码可以由以任何适当的编程语言编写的软件应用程序(或程序)来实施，软件代码可以存储在存储器160中并且由控制器180执行。
至此，已经按照其功能描述了移动终端。下面，为了简要起见，将描 述诸如折叠型、直板型、摆动型、滑动型移动终端等等的各种类型的移动终端中的滑动型移动终端作为示例。因此，本发明能够应用于任何类型的移动终端，并且不限于滑动型移动终端。
如图1中所示的移动终端100可以被构造为利用经由帧或分组发送数据的诸如有线和无线通信系统以及基于卫星的通信系统来操作。
现在将参考图2描述其中根据本发明的移动终端能够操作的通信系统。
这样的通信系统可以使用不同的空中接口和/或物理层。例如，由通信系统使用的空中接口包括例如频分多址(FDMA)、时分多址(TDMA)、码分多址(CDMA)和通用移动通信系统(UMTS)(特别地，长期演进(LTE))、全球移动通信系统(GSM)等等。作为非限制性示例，下面的描述涉及CDMA通信系统，但是这样的教导同样适用于其它类型的系统。
参考图2，CDMA无线通信系统可以包括多个移动终端100、多个基站(BS)270、基站控制器(BSC)275和移动交换中心(MSC)280。MSC280被构造为与公共电话交换网络(PSTN)290形成接口。MSC280还被构造为与可以经由回程线路耦接到基站270的BSC275形成接口。回程线路可以根据若干已知的接口中的任一种来构造，所述接口包括例如E1/T1、ATM，IP、PPP、帧中继、HDSL、ADSL或xDSL。将理解的是，如图2中所示的系统可以包括多个BSC275。
每个BS270可以服务一个或多个分区(或区域)，由多向天线或指向特定方向的天线覆盖的每个分区放射状地远离BS270。或者，每个分区可以由用于分集接收的两个或更多天线覆盖。每个BS270可以被构造为支持多个频率分配，并且每个频率分配具有特定频谱(例如，1.25MHz,5MHz等等)。
分区与频率分配的交叉可以被称为CDMA信道。BS270也可以被称为基站收发器子系统(BTS)或者其它等效术语。在这样的情况下，术语"基站"可以用于笼统地表示单个BSC275和至少一个BS270。基站也可以被称为"蜂窝站"。或者，特定BS270的各分区可以被称为多个蜂窝站。
如图2中所示，广播发射器(BT)295将广播信号发送给在系统内操作的移动终端100。如图2中所示的广播接收模块111被设置在移动终端100处以接收由BT295发送的广播信号。在图2中，示出了几个全球定位系统(GPS)卫星300。卫星300帮助定位多个移动终端100中的至少一个。
在图2中，描绘了多个卫星300，但是理解的是，可以利用任何数目的卫星获得有用的定位信息。如图2中所示的GPS模块115通常被构造为与卫星300配合以获得想要的定位信息。替代GPS跟踪技术或者在GPS跟踪技术之外，可以使用可以跟踪移动终端的位置的其它技术。另外，至少一个GPS卫星300可以选择性地或者额外地处理卫星DMB传输。
作为无线通信系统的一个典型操作，BS270接收来自各种移动终端100的反向链路信号。移动终端100通常参与通话、消息收发和其它类型的通信。特定基站270接收的每个反向链路信号被在特定BS270内进行处理。获得的数据被转发给相关的BSC275。BSC提供通话资源分配和包括BS270之间的软切换过程的协调的移动管理功能。BSC275还将接收到的数据路由到MSC280，其提供用于与PSTN290形成接口的额外的路由服务。类似地，PSTN290与MSC280形成接口，MSC与BSC275形成接口，并且BSC275相应地控制BS270以将正向链路信号发送到移动终端100。
参照图3，图3为图1中相机的电气结构框图。
摄影镜头1211由用于形成被摄体像的多个光学镜头构成，为单焦点镜头或变焦镜头。摄影镜头1211在镜头驱动器1221的控制下能够在光轴方向上移动，镜头驱动器1221根据来自镜头驱动控制电路1222的控制信号，控制摄影镜头1211的焦点位置，在变焦镜头的情况下，也可控制焦点距离。镜头驱动控制电路1222按照来自微型计算机1217的控制命令进行镜头驱动器1221的驱动控制。
在摄影镜头1211的光轴上、由摄影镜头1211形成的被摄体像的位置附近配置有摄像元件1212。摄像元件1212用于对被摄体像摄像并取得摄像 图像数据。在摄像元件1212上二维且呈矩阵状配置有构成各像素的光电二极管。各光电二极管产生与受光量对应的光电转换电流，该光电转换电流由与各光电二极管连接的电容器进行电荷蓄积。各像素的前表面配置有拜耳排列的RGB滤色器，该摄像元件1212中为感光元件如CMOS图像传感器和CCD图像传感器。
摄像元件1212与摄像电路1213连接，该摄像电路1213在摄像元件1212中进行电荷蓄积控制和图像信号读出控制，对该读出的图像信号(模拟图像信号)降低重置噪声后进行波形整形，进而进行增益提高等以成为适当的信号电平。
摄像电路1213与A/D转换器1214连接，该A/D转换器1214对模拟图像信号进行模数转换，向总线1227输出数字图像信号(以下称之为图像数据)。
总线1227是用于传送在相机的内部读出或生成的各种数据的传送路径。在总线1227连接着上述A/D转换器1214，此外还连接着图像处理器1215、JPEG处理器1216、微型计算机1217、SDRAM(Synchronous Dynamic random access memory，同步动态随机存取内存)1218、存储器接口(以下称之为存储器I/F)1219、LCD(Liquid Crystal Display，液晶显示器)驱动器1220。
图像处理器1215对基于摄像元件1212的输出的图像数据进行OB相减处理、白平衡调整、颜色矩阵运算、伽马转换、色差信号处理、噪声去除处理、同时化处理、边缘处理等各种图像处理。JPEG处理器1216在将图像数据记录于记录介质1225时，按照JPEG压缩方式压缩从SDRAM1218读出的图像数据。此外，JPEG处理器1216为了进行图像再现显示而进行JPEG图像数据的解压缩。进行解压缩时，读出记录在记录介质1225中的文件，在JPEG处理器1216中实施了解压缩处理后，将解压缩的图像数据暂时存储于SDRAM1218中并在LCD1226上进行显示。另外，在本实施方式中，作为图像压缩解压缩方式采用的是JPEG方式，然而压缩解压缩方式 不限于此，当然可以采用MPEG、TIFF、H.264等其他的压缩解压缩方式。
微型计算机1217发挥作为该相机整体的控制部的功能，统一控制相机的各种处理序列。微型计算机1217连接着操作单元1223和闪存1224。
操作单元1223包括但不限于实体按键或者虚拟按键，该实体或虚拟按键可以为电源按钮、拍照键、编辑按键、动态图像按钮、再现按钮、菜单按钮、十字键、OK按钮、删除按钮、放大按钮等各种输入按钮和各种输入键等操作控件，检测这些操作控件的操作状态。
将检测结果向微型计算机1217输出。此外，在作为显示器的LCD1226的前表面设有触摸面板，检测用户的触摸位置，将该触摸位置向微型计算机1217输出。微型计算机1217根据来自操作单元1223的操作位置的检测结果，执行与用户的操作对应的各种处理序列。
闪存1224存储用于执行微型计算机1217的各种处理序列的程序。微型计算机1217根据该程序进行相机整体的控制。此外，闪存1224存储相机的各种调整值，微型计算机1217读出调整值，按照该调整值进行相机的控制。
SDRAM1218是用于对图像数据等进行暂时存储的可电改写的易失性存储器。该SDRAM1218暂时存储从A/D转换器1214输出的图像数据和在图像处理器1215、JPEG处理器1216等中进行了处理后的图像数据。
存储器接口1219与记录介质1225连接，进行将图像数据和附加在图像数据中的文件头等数据写入记录介质1225和从记录介质1225中读出的控制。记录介质1225例如为能够在相机主体上自由拆装的存储器卡等记录介质，然而不限于此，也可以是内置在相机主体中的硬盘等。
LCD驱动器1210与LCD1226连接，将由图像处理器1215处理后的图像数据存储于SDRAM1218，需要显示时，读取SDRAM1218存储的图像数据并在LCD1226上显示，或者，JPEG处理器1216压缩过的图像数据存储于SDRAM1218，在需要显示时，JPEG处理器1216读取SDRAM1218 的压缩过的图像数据，再进行解压缩，将解压缩后的图像数据通过LCD1226进行显示。
LCD1226配置在相机主体的背面进行图像显示。该LCD1226LCD)，然而不限于此，也可以采用有机EL等各种显示面板(LCD1226)，然而不限于此，也可以采用有机EL等各种显示面板。
基于上述移动终端硬件结构以及通信系统，提出本发明各个实施例。
实施例一
本发明实施例提供了一种移动终端。图4为本发明实施例的移动终端的第一种组成结构示意图；如图4所示，所述移动终端包括：CMOS图像传感单元41、获取单元42和控制单元43；其中，
所述获取单元42，配置为在接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度；
所述控制单元43，配置为检测到拍照指令时，控制所述CMOS图像传感单元41按所述获取单元42获取的曝光时间进行全局曝光。
本实施例中，所述移动终端具体可以为手机、平板电脑、智能眼镜等便携智能终端。所述移动终端的CMOS图像传感单元41可以理解为图3中的摄像元件；所述CMOS图像传感单元41可采用卷帘快门模式或全局曝光模式。
本实施例中，所述获取单元42接收到的设置指令为曝光时间的设置指令；所述曝光时间对应于拍摄的目标物的移动速度。作为一种实施方式，为了满足高速物体的拍摄，所述移动速度相对较大，设置的所述曝光时间相对较小，所述曝光时间例如1/100秒、1/200秒等等。
作为一种实施方式，所述移动终端还包括存储单元，配置为存储曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；曝光时间与目标物的移动速度反相关；
所述获取单元42，配置为接收到第一设置指令时，查询所述存储单元 存储的曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
具体的，所述移动终端可预先配置(或者由人工预先设置)曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；其中，曝光时间与目标物的移动速度反相关；例如，曝光时间为1/100秒，对应的目标物的移动速度可以为50公里/小时；曝光时间为1/200秒，对应的目标物的移动速度可以为80公里/小时。这里，所述曝光时间与目标物的移动速度反相关，指的是曝光时间越短，对应的目标物的移动速度越大，并不是曝光时间与目标物的移动速度严格的成反比的关系。
本实施例中，所述设置指令可通过用户依据实际需求手动设置。例如，在一种应用场景下，用户在移动速度为80公里/小时的车上拍摄车外的景色时，可手动设置曝光时间为1/200秒对应的档位；当设置相应的档位时，所述获取单元42接收到对应的设置指令。
本实施例中，所述控制单元43检测到拍照指令时，控制所述CMOS图像传感单元41按所述获取单元42获取的曝光时间进行全局曝光，可以理解为，所述CMOS图像传感单元41支持全局曝光模式，在检测到拍照指令之前，所述CMOS图像传感单元41已处于全局曝光模式。
本实施例中，所述移动终端中的获取单元42和控制单元43，在实际应用中均可由所述移动终端中的中央处理器(CPU，Central Processing Unit)、数字信号处理器(DSP，Digital Signal Processor)或可编程门阵列(FPGA，Field－Programmable Gate Array)实现；所述移动终端中的CMOS传感单元，在实际应用中可通过CMOS传感器实现。
采用本发明实施例的技术方案，便于用户在使用移动终端拍摄高速运动的物体时，通过在全局曝光模式下对曝光时间上限进行设定，实现拍摄出的物体不易变形，提升了用户的拍摄体验。
实施例二
本发明实施例还提供了一种移动终端。图5为本发明实施例的移动终 端的第二种组成结构示意图；如图5所示，所述移动终端包括：CMOS图像传感单元41、电子黑卡44、获取单元42和控制单元43；所述电子黑卡44设置在所述CMOS图像传感单元41的入光侧；所述电子黑卡44在掉电状态下为透明状态，以使光线经所述电子黑卡44进入所述CMOS图像传感单元41；所述电子黑卡44在上电状态下为非透光状态，以遮挡进入所述CMOS图像传感单元41的光线；
所述获取单元42，配置为在接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度；
所述控制单元43，配置为检测到拍照指令时，获得所述电子黑卡44的状态；当所述电子黑卡44的状态为上电状态时，控制所述电子黑卡44切换至掉电状态，以使所述CMOS图像传感单元41进行全局曝光；以及控制所述CMOS图像传感单元41按所述获取单元42获取的曝光时间进行全局曝光。
本实施例中，所述移动终端具体可以为手机、平板电脑、智能眼镜等便携智能终端。所述移动终端的CMOS图像传感单元41可以理解为图3中的摄像元件；所述CMOS图像传感单元41可采用卷帘快门模式或全局曝光模式。
本实施例中，所述移动终端设置有电子黑卡44；所述电子黑卡44可设置于CMOS图像传感单元41入光侧的表面，也可通过固定装置固定于CMOS图像传感单元41的入光侧，或者设置于CMOS图像传感单元41的内部，本领域技术人员可根据需要对电子黑卡44的位置进行设置。
所述电子黑卡44可为液晶面板或透明电子薄膜，所述液晶面板或透明电子薄膜可设置于CMOS图像传感单元41入光侧的表面，也可通过固定装置固定于CMOS图像传感单元41的入光侧。可通过上电改变液晶面板或者透明电子薄膜的显示阵列，以使液晶面板或者透明电子薄膜处于非透明状态。可以理解的是，所述电子黑卡44也可采用其它透光材料，以实现在掉 电状态下透光，并在上电状态不透光即可。进一步地，加载在所述电子黑卡44上的不同的电流大小对应所述电子黑卡44的透光率不同；可以理解为，加载在电子黑卡44上的电流越小，所述电子黑卡44的透光率越高，所述电子黑卡44越趋近于透明；加载在电子黑卡44上的电流越大，所述电子黑卡44的透光率越低，所述电子黑卡44越趋近于不透明。
本实施例提出的移动终端，在移动终端CMOS图像传感单元41的入光侧设置有电子黑卡44，所述电子黑卡44在掉电时处于透明状态使得光线可以进入CMOS图像传感单元41，在上电时处于非透明状态，遮挡进入CMOS图像传感单元41的光线，则在移动终端进行全局曝光时仅需要对电子黑卡44掉电，并在曝光结束时对电子黑卡44上电，以进行曝光后的像素点数据的读取，由于上电过程快速则切换时长可忽略不计，不会出现延迟导致曝光不均的情况出现，同时通过上电以及掉电对电子黑卡44进行控制对电子黑卡44的非常小，相对于机械快门使用寿命较长。
在电子黑卡44处于掉电状态时，即电子黑卡44为透明状态时，入光侧所有光均会进入CMOS图像传感单元41，即CMOS图像传感单元41中所有像素点对应的感光元件均可感光以进行曝光操作，实现全局曝光，在全局曝光时由于各个像素点同时曝光且曝光时长相同，曝光较为均匀。
本实施例中，所述获取单元42接收到的设置指令为曝光时间的设置指令；所述曝光时间对应于拍摄的目标物的移动速度。作为一种实施方式，为了满足高速物体的拍摄，所述移动速度相对较大，设置的所述曝光时间相对较小，所述曝光时间例如1/100秒、1/200秒等等。
作为一种实施方式，所述移动终端还包括存储单元，配置为存储曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；曝光时间与目标物的移动速度反相关；
所述获取单元42，配置为接收到第一设置指令时，查询所述存储单元存储的曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
具体的，所述移动终端可预先配置(或者由人工预先设置)曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；其中，曝光时间与目标物的移动速度反相关；例如，曝光时间为1/100秒，对应的目标物的移动速度可以为50公里/小时；曝光时间为1/200秒，对应的目标物的移动速度可以为80公里/小时。这里，所述曝光时间与目标物的移动速度反相关，指的是曝光时间越短，对应的目标物的移动速度越大，并不是曝光时间与目标物的移动速度严格的成反比的关系。
本实施例中，所述设置指令可通过用户依据实际需求手动设置。例如，在一种应用场景下，用户在移动速度为80公里/小时的车上拍摄车外的景色时，可手动设置曝光时间为1/200秒对应的档位；当设置相应的档位时，所述获取单元42接收到对应的设置指令。
本实施例中，所述控制单元43检测到拍照指令时，控制所述CMOS图像传感单元41按所述获取单元42获取的曝光时间进行全局曝光，可以理解为，所述CMOS图像传感单元41支持全局曝光模式，在检测到拍照指令之前，所述CMOS图像传感单元41已处于全局曝光模式。
本实施例中，所述控制单元43在获取的曝光时长到达时，控制电子黑卡44上电。在电子黑卡44上电时，电子黑卡44处于非透明状态，入光侧的光均不能进入CMOS图像传感器，即停止曝光，由于上电速度非常快，可保证在读取曝光数据之前所有的像素点均停止曝光，即可实现所有像素点的曝光一致，避免曝光不均匀的情况出现。
作为一种实施方式，所述控制模块，还配置为在接收到快门关闭指令时，控制所述电子黑卡44上电；或者，在接收到快门开启指令时，控制所述电子黑卡44掉电。
具体的，为提高对电子黑卡44控制的灵活性，用户可手动控制电子黑卡44的上电以及掉电以实现全局快门的开启和关闭。用户可通过移动终端显示界面上虚拟控件、移动终端上的实体按键或者手势以及语音触发开门 关闭指令和快门开启指令，以实现对快门的主动控制，使得拍照过程更加灵活。
可以理解是，由于可能出现曝光失败的情况，如光线强度太大，导致曝光得到的图像局部过亮，则在读取到曝光数据时通过各个像素点对应的像素值判断是否曝光失败(如局部过亮)，在曝光失败时，重新执行本实施例的操作。
作为一种实施方式，所述电子黑卡的数量为多个；所述移动终端还包括检测单元，配置为检测所述CMOS图像传感单元采集的预览图像，识别所述预览图像中的第一区域的第一显示参数；所述第一区域为所述预览图像中的任一区域；
所述控制单元43，还配置为基于所述检测单元获得的第一显示参数控制所述第一区域对应的第一电子黑卡上电。
具体的，所述移动终端的检测单元配置为检测所述CMOS图像传感单元41采集的预览图像，识别所述预览图像中各个区域的显示参数。可以理解为，所述检测单元预先根据所述多个电子黑卡的组合方式预先对所述CMOS图像传感单元41的图像采集区域划分为多个子区域，以使得每个电子黑卡44对应于一个子区域。其中，所述显示参数可以为表征亮度的参数，例如亮度值。
本实施例中，所述控制单元43基于所述检测单元获得的第一显示参数控制所述第一区域对应的第一电子黑卡上电，由于加载在所述电子黑卡上的电流不同对应所述电子黑卡的透光率不同，可以理解为，加载在电子黑卡上的电流越小，所述电子黑卡的透光率越高，所述电子黑卡越趋近于透明；加载在电子黑卡上的电流越大，所述电子黑卡的透光率越低，所述电子黑卡越趋近于不透明；则可以对每个电子黑卡的电流独立控制，以调整所述第一区域的亮度；当然，所述控制单元43也可控制所述第一区域对应的第一电子黑卡掉电，以实现图像中的局部区域的亮度调节，避免图像中 的局部区域曝光过度导致的图片质量不佳的问题，提升用户的拍摄体验。
其中，所述控制单元43，还配置为控制所述第一区域对应的第一电子黑卡上电时，基于所述第一区域的第一显示参数和除所述第一区域以外的其他区域的显示参数，自适应调整所述第一电子黑卡的上电电流；其中，所述第一电子黑卡为所述多个电子黑卡中的任一电子黑卡。
具体的，由于加载在所述电子黑卡44上的不同的电流大小对应所述电子黑卡44的透光率不同；加载在电子黑卡44上的电流越小，所述电子黑卡44的透光率越高，所述电子黑卡44越趋近于透明；加载在电子黑卡44上的电流越大，所述电子黑卡44的透光率越低，所述电子黑卡44越趋近于不透明。基于此，本实施例中，所述控制单元43基于预览图像中各个区域的显示参数之间的相对关系，自适应调整每个区域对应的电子黑卡的上电电流大小。例如，假设第一区域的亮度值为255，第二区域的亮度值为245；若所述控制单元43控制所述第一区域对应的第一电子黑卡和第二区域对应的第二电子黑卡上电时，可基于所述第一区域和所述第二区域亮度值的不同，控制所述第一电子黑卡和所述第二电子黑卡的电流不同，从而控制进入对应于所述第一区域和所述第二区域的所述CMOS图像传感单元41的光线不同。这样，一方面可以调整图像中的不同区域的亮度，实现图像中的局部区域的亮度调节，避免图像中的局部区域曝光过度导致的图像质量不佳的问题；另一方面可通过上述自适应的调整方式能够改善图像的拍摄质量，提升用户的拍摄体验。
本实施例中，所述移动终端中的检测单元、获取单元42和控制单元43，在实际应用中均可由所述移动终端中的CPU、DSP或FPGA实现；所述移动终端中的CMOS传感单元，在实际应用中可通过CMOS传感器实现。
需要强调的是，对本领域的技术人员来说，图4和图5所示功能模块图仅仅是一个实施例的示例图，本领域的技术人员围绕图4和图5所示的移动终端的曝光装置的功能模块，可轻易进行新的功能模块的补充；各功 能模块的名称是自定义名称，仅用于辅助理解该移动终端的曝光装置的各个程序功能块，不用于限定本发明的技术方案，本发明技术方案的核心是，各自定义名称的功能模块所要达成的功能。
采用本发明实施例的技术方案，便于用户在使用移动终端拍摄高速运动的物体时，通过在全局曝光模式下对曝光时间上限进行设定，实现拍摄出的物体不易变形，提升了用户的拍摄体验。
实施例三
本发明实施例还提供了一种曝光方法，所述曝光方法应用于移动终端中；所述移动终端包括CMOS图像传感单元。图6为本发明实施例的曝光方法的一种流程示意图；如图6所示，所述方法包括：
步骤601：接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度。
步骤602：检测到拍照指令时，控制所述CMOS图像传感单元按所述曝光时间进行全局曝光。
本实施例中，接收到的设置指令为曝光时间的设置指令；所述曝光时间对应于拍摄的目标物的移动速度。作为一种实施方式，为了满足高速物体的拍摄，所述移动速度相对较大，设置的所述曝光时间相对较小，所述曝光时间例如1/100秒、1/200秒等等。
作为一种实施方式，所述获取所述设置指令对应的曝光时间之前，所述方法还包括：设置并存储曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；
相应的，所述接收到设置指令时，获取所述设置指令对应的曝光时间，包括：接收到第一设置指令时，查询所述曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
具体的，所述移动终端可预先配置(或者由人工预先设置)曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系； 其中，曝光时间与目标物的移动速度反相关；例如，曝光时间为1/100秒，对应的目标物的移动速度可以为50公里/小时；曝光时间为1/200秒，对应的目标物的移动速度可以为80公里/小时。这里，所述曝光时间与目标物的移动速度反相关，指的是曝光时间越短，对应的目标物的移动速度越大，并不是曝光时间与目标物的移动速度严格的成反比的关系。
其中，所述设置指令可通过用户依据实际需求手动设置。例如，在一种应用场景下，用户在移动速度为80公里/小时的车上拍摄车外的景色时，可手动设置曝光时间为1/200秒对应的档位；当设置相应的档位时，所述获取单元接收到对应的设置指令。
本实施例中，检测到拍照指令时，控制所述CMOS图像传感单元按获取的曝光时间进行全局曝光，可以理解为，所述CMOS图像传感单元支持全局曝光模式，在检测到拍照指令之前，所述CMOS图像传感单元已处于全局曝光模式。即所述控制所述CMOS图像传感单元按所述曝光时间进行全局曝光之前，所述方法还包括：检测到模式设置指令，基于所述模式设置指令控制所述CMOS图像传感单元处于全局曝光模式。
采用本发明实施例的技术方案，便于用户在使用移动终端拍摄高速运动的物体时，通过在全局曝光模式下对曝光时间上限进行设定，实现拍摄出的物体不易变形，提升了用户的拍摄体验。
实施例四
本发明实施例还提供了一种曝光方法，所述曝光方法应用于移动终端中；所述移动终端包括CMOS图像传感单元和电子黑卡；所述电子黑卡设置在所述CMOS图像传感单元的入光侧；所述电子黑卡在掉电状态下为透明状态；所述电子黑卡在上电状态下为非透光状态。图7为本发明实施例的曝光方法的另一种流程示意图；如图7所示，所述方法包括：
步骤701：接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度。
步骤702：检测到拍照指令时，获得所述电子黑卡的状态；当所述电子黑卡的状态为上电状态时，控制所述电子黑卡切换至掉电状态，以及控制所述CMOS图像传感单元按所述曝光时间进行全局曝光；以使所述CMOS图像传感单元进行全局曝光。
本实施例中，在移动终端CMOS图像传感单元的入光侧设置有电子黑卡，所述电子黑卡在掉电时处于透明状态使得光线可以进入CMOS图像传感单元，在上电时处于非透明状态，遮挡进入CMOS图像传感单元的光线，则在移动终端进行全局曝光时仅需要对电子黑卡掉电，并在曝光结束时对电子黑卡上电，以进行曝光后的像素点数据的读取，由于上电过程快速则切换时长可忽略不计，不会出现延迟导致曝光不均的情况出现，同时通过上电以及掉电对电子黑卡进行控制对电子黑卡的非常小，相对于机械快门使用寿命较长。
在电子黑卡处于掉电状态时，即电子黑卡为透明状态时，入光侧所有光均会进入CMOS图像传感单元，即CMOS图像传感单元中所有像素点对应的感光元件均可感光以进行曝光操作，实现全局曝光，在全局曝光时由于各个像素点同时曝光且曝光时长相同，曝光较为均匀。
本实施例中，接收到的设置指令为曝光时间的设置指令；所述曝光时间对应于拍摄的目标物的移动速度。作为一种实施方式，为了满足高速物体的拍摄，所述移动速度相对较大，设置的所述曝光时间相对较小，所述曝光时间例如1/100秒、1/200秒等等。
作为一种实施方式，所述获取所述设置指令对应的曝光时间之前，所述方法还包括：设置并存储曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；
相应的，所述接收到设置指令时，获取所述设置指令对应的曝光时间，包括：接收到第一设置指令时，查询所述曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
具体的，所述移动终端可预先配置(或者由人工预先设置)曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；其中，曝光时间与目标物的移动速度反相关；例如，曝光时间为1/100秒，对应的目标物的移动速度可以为50公里/小时；曝光时间为1/200秒，对应的目标物的移动速度可以为80公里/小时。这里，所述曝光时间与目标物的移动速度反相关，指的是曝光时间越短，对应的目标物的移动速度越大，并不是曝光时间与目标物的移动速度严格的成反比的关系。
其中，所述设置指令可通过用户依据实际需求手动设置。例如，在一种应用场景下，用户在移动速度为80公里/小时的车上拍摄车外的景色时，可手动设置曝光时间为1/200秒对应的档位；当设置相应的档位时，所述获取单元接收到对应的设置指令。
本实施例中，检测到拍照指令时，控制所述CMOS图像传感单元按获取的曝光时间进行全局曝光，可以理解为，所述CMOS图像传感单元支持全局曝光模式，在检测到拍照指令之前，所述CMOS图像传感单元已处于全局曝光模式。即所述控制所述CMOS图像传感单元按所述曝光时间进行全局曝光之前，所述方法还包括：检测到模式设置指令，基于所述模式设置指令控制所述CMOS图像传感单元处于全局曝光模式。
本实施例中，在获取的曝光时长到达时，控制电子黑卡上电。在电子黑卡上电时，电子黑卡处于非透明状态，入光侧的光均不能进入CMOS图像传感器，即停止曝光，由于上电速度非常快，可保证在读取曝光数据之前所有的像素点均停止曝光，即可实现所有像素点的曝光一致，避免曝光不均匀的情况出现。
作为一种实施方式，在步骤701之前，还包括：步骤700：在接收到快门开启指令时，控制所述电子黑卡掉电；或者，在步骤702之后，还包括：步骤703：接收到快门关闭指令时，控制所述电子黑卡上电。
具体的，为提高对电子黑卡控制的灵活性，用户可手动控制电子黑卡 的上电以及掉电以实现全局快门的开启和关闭。用户可通过移动终端显示界面上虚拟控件、移动终端上的实体按键或者手势以及语音触发开门关闭指令和快门开启指令，以实现对快门的主动控制，使得拍照过程更加灵活。
可以理解是，由于可能出现曝光失败的情况，如光线强度太大，导致曝光得到的图像局部过亮，则在读取到曝光数据时通过各个像素点对应的像素值判断是否曝光失败(如局部过亮)，在曝光失败时，重新执行本实施例的操作。
作为一种实施方式，所述电子黑卡的数量为多个；所述检测到拍照指令之前，所述方法还包括：检测所述CMOS图像传感单元采集的预览图像，识别所述预览图像中的第一区域的第一显示参数；所述第一区域为所述预览图像中的任一区域；基于所述第一显示参数控制所述第一区域对应的第一电子黑卡上电。
本实施例中，所述移动终端检测所述CMOS图像传感单元采集的预览图像，识别所述预览图像中各个区域的显示参数。可以理解为，预先根据所述多个电子黑卡的组合方式预先对所述CMOS图像传感单元的图像采集区域划分为多个子区域，以使得每个电子黑卡对应于一个子区域。其中，所述显示参数可以为表征亮度的参数，例如亮度值。
本实施例中，基于获得的第一显示参数控制所述第一区域对应的第一电子黑卡上电，由于加载在所述电子黑卡上的电流不同对应所述电子黑卡的透光率不同，可以理解为，加载在电子黑卡上的电流越小，所述电子黑卡的透光率越高，所述电子黑卡越趋近于透明；加载在电子黑卡上的电流越大，所述电子黑卡的透光率越低，所述电子黑卡越趋近于不透明；则可以对每个电子黑卡的电流独立控制，以调整所述第一区域的亮度，实现图像中的局部区域的亮度调节，避免图像中的局部区域曝光过度导致的图片质量不佳的问题，提升用户的拍摄体验。
其中，所述基于所述第一显示参数控制所述第一区域对应的第一电子 黑卡上电时，所述方法还包括：基于所述第一区域的第一显示参数和除所述第一区域以外的其他区域的显示参数，自适应调整所述第一电子黑卡的上电电流；其中，所述第一电子黑卡为所述多个电子黑卡中的任一电子黑卡。
采用本发明实施例的技术方案，便于用户在使用移动终端拍摄高速运动的物体时，通过在全局曝光模式下对曝光时间上限进行设定，实现拍摄出的物体不易变形，提升了用户的拍摄体验。
图8为本发明实施例的测试控制装置作为硬件实体的一种示意图；如图8所示，所述移动终端包括处理器71、存储介质72、CMOS传感器74以及至少一个外部通信接口73；所述处理器71、存储介质72、CMOS传感器74以及外部通信接口73均通过总线75连接。
这里需要指出的是：以上涉及测试控制方法的描述，与上述测试控制装置描述是类似的，同装置的有益效果描述，不做赘述。对于本发明移动终端实施例中未披露的技术细节，请参照本发明测试控制装置实施例的描述。
图9a和图9b分别为采用本发明实施例曝光方法之前和之后采集的图像示意图；如图9a所示，为移动终端采用本发明实施例的曝光方法之前采集的图像示意图，从图中可以看出，在拍摄高速运动的物体(如图中所示的行驶中的车辆)时，会产生严重的形变，甚至物体的形状都很模糊。如图9b所示，为移动终端采用本发明实施例的曝光方法之后采集的图像示意图，从图中可以看出，采用本发明实施例的曝光方法后，即通过设置曝光时间上线，采用全局曝光模式采集图像，图像中的物体基本不会产生形变，大大改善了拍摄高速物体的图像的质量，提升了用户的拍摄体验。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或 者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本发明上述集成的单元如果以软件功能模块的形式实现并作为 独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。
工业实用性
本发明实施例能便于用户在使用移动终端拍摄高速运动的物体时，通过在全局曝光模式下对曝光时间上限进行设定，实现拍摄出的物体不易变形，提升了用户的拍摄体验。

Claims (20)

  1. 一种移动终端，所述移动终端包括：CMOS图像传感单元、获取单元和控制单元；其中，
    所述获取单元，配置为在接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度；
    所述控制单元，配置为检测到拍照指令时，控制所述CMOS图像传感单元按所述曝光时间进行全局曝光。
  2. 根据权利要求1所述的移动终端，其中，所述移动终端还包括存储单元，配置为存储曝光时间集合；所述曝光时间集合包括至少两组设置指令与曝光时间的对应关系；
    所述获取单元，配置为接收到第一设置指令时，查询所述存储单元存储的曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
  3. 根据权利要求1所述的移动终端，其中，所述移动终端还包括电子黑卡，所述电子黑卡设置在所述CMOS图像传感单元的入光侧；
    所述电子黑卡在掉电状态下为透明状态，以使光线经所述电子黑卡进入所述CMOS图像传感单元；所述电子黑卡在上电状态下为非透光状态，以遮挡进入所述CMOS图像传感单元的光线。
  4. 根据权利要求3所述的移动终端，其中，所述控制单元，还配置为检测到拍照指令时，获得所述电子黑卡的状态；当所述电子黑卡的状态为上电状态时，控制所述电子黑卡切换至掉电状态，以使所述CMOS图像传感单元进行全局曝光。
  5. 根据权利要求3所述的移动终端，其中，所述控制模块，还配置为在接收到快门关闭指令时，控制所述电子黑卡上电；或者，在接收到快门开启指令时，控制所述电子黑卡掉电。
  6. 根据权利要求1或2所述的移动终端，其中，所述曝光时间与所述 目标物的移动速度反相关。
  7. 根据权利要求3所述的移动终端，其中，所述电子黑卡设置于所述CMOS图像传感单元的入光侧的表面，或者固定于所述CMOS图像传感单元的入光侧，或者设置于所述CMOS图像传感单元的内部。
  8. 根据权利要求3所述的移动终端，其中，加载在所述电子黑卡上的电流不同对应所述电子黑卡的透光率不同。
  9. 根据权利要求3所述的移动终端，其中，所述电子黑卡的数量为多个；所述移动终端还包括检测单元，配置为检测所述CMOS图像传感单元采集的预览图像，识别所述预览图像中的第一区域的第一显示参数；所述第一区域为所述预览图像中的任一区域；
    所述控制单元，还配置为基于所述检测单元获得的第一显示参数控制所述第一区域对应的第一电子黑卡上电。
  10. 根据权利要求9所述的移动终端，其中，所述控制单元，还配置为控制所述第一区域对应的第一电子黑卡上电时，基于所述第一区域的第一显示参数和除所述第一区域以外的其他区域的显示参数，自适应调整所述第一电子黑卡的上电电流；其中，所述第一电子黑卡为所述多个电子黑卡中的任一电子黑卡。
  11. 一种曝光方法，应用于移动终端中；所述移动终端包括CMOS图像传感单元；所述方法包括：
    接收到设置指令时，获取所述设置指令对应的曝光时间；所述曝光时间对应于拍摄的目标物的移动速度；
    检测到拍照指令时，控制所述CMOS图像传感单元按所述曝光时间进行全局曝光。
  12. 根据权利要求11所述的方法，其中，所述获取所述设置指令对应的曝光时间之前，所述方法还包括：
    设置并存储曝光时间集合；所述曝光时间集合包括至少两组设置指令 与曝光时间的对应关系；
    相应的，所述接收到设置指令时，获取所述设置指令对应的曝光时间，包括：
    接收到第一设置指令时，查询所述曝光时间集合，获得所述第一设置指令对应的第一曝光时间。
  13. 根据权利要求11所述的方法，其中，所述控制所述CMOS图像传感单元按所述曝光时间进行全局曝光之前，所述方法还包括：
    检测到模式设置指令，基于所述模式设置指令控制所述CMOS图像传感单元处于全局曝光模式。
  14. 根据权利要求11所述的方法，其中，所述移动终端还包括电子黑卡，所述电子黑卡设置在所述CMOS图像传感单元的入光侧；所述电子黑卡在掉电状态下为透明状态；所述电子黑卡在上电状态下为非透光状态；
    所述控制按所述曝光时间进行全局曝光之前，所述方法还包括：检测到拍照指令时，获得所述电子黑卡的状态；当所述电子黑卡的状态为上电状态时，控制所述电子黑卡切换至掉电状态，以使所述CMOS图像传感单元进行全局曝光。
  15. 根据权利要求11所述的方法，其中，所述移动终端还包括电子黑卡，所述电子黑卡设置在所述CMOS图像传感单元的入光侧；所述电子黑卡在掉电状态下为透明状态；所述电子黑卡在上电状态下为非透光状态；
    所述方法还包括：接收到快门关闭指令时，控制所述电子黑卡上电；或者，在接收到快门开启指令时，控制所述电子黑卡掉电。
  16. 根据权利要求14或15所述的方法，其中，加载在所述电子黑卡上的电流不同对应所述电子黑卡的透光率不同。
  17. 根据权利要求14或15所述的方法，其中，所述电子黑卡的数量为多个；所述检测到拍照指令之前，所述方法还包括：
    检测所述CMOS图像传感单元采集的预览图像，识别所述预览图像中 的第一区域的第一显示参数；所述第一区域为所述预览图像中的任一区域；
    基于所述第一显示参数控制所述第一区域对应的第一电子黑卡上电。
  18. 根据权利要求17所述的方法，其中，所述基于所述第一显示参数控制所述第一区域对应的第一电子黑卡上电时，所述方法还包括：
    基于所述第一区域的第一显示参数和除所述第一区域以外的其他区域的显示参数，自适应调整所述第一电子黑卡的上电电流；其中，所述第一电子黑卡为所述多个电子黑卡中的任一电子黑卡。
  19. 根据权利要求11或12所述的方法，其中，所述曝光时间与所述目标物的移动速度反相关。
  20. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令配置为执行权利要求11至19任一项所述的曝光方法。
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