WO2022250342A1 - 렌즈 구동 정보와 이미지를 동기화하는 전자 장치 - Google Patents
렌즈 구동 정보와 이미지를 동기화하는 전자 장치 Download PDFInfo
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- WO2022250342A1 WO2022250342A1 PCT/KR2022/006800 KR2022006800W WO2022250342A1 WO 2022250342 A1 WO2022250342 A1 WO 2022250342A1 KR 2022006800 W KR2022006800 W KR 2022006800W WO 2022250342 A1 WO2022250342 A1 WO 2022250342A1
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Definitions
- Various embodiments of the present disclosure relate to a technique for synchronizing lens driving information and image data.
- the electronic device may perform video digital image stabilization (VDIS) on a plurality of image frames.
- VDIS is a method of reducing motion blur through digital processing, and a processor may correct a plurality of image frames through VDIS.
- the electronic device may perform temporal noise reduction (TNR) on a plurality of image frames.
- TNR is a method of removing noise temporally generated between a plurality of image frames based on a current image frame and a previous image frame.
- an actuator for driving a lens and an image sensor for acquiring image data are independent components, it is difficult to synchronize lens driving information for controlling the actuator with the image data.
- OIS optical image stabilization
- AF auto focus
- An electronic device includes a lens, an image sensor generating image data from incident light incident through the lens, an actuator capable of driving the lens, and controlling the actuator to generate the image data.
- At least one processor outputting a first signal including lens driving information for driving a lens, a first interface through which the at least one processor provides the first signal to the actuator, and the at least one processor A second interface for providing the first signal to the image sensor may be included.
- An electronic device includes a lens, an image sensor generating image data from incident light incident through the lens, an actuator capable of driving the lens, and driving the lens by controlling the actuator.
- At least one processor for outputting a first signal including lens driving information for a first signal, a first interface for the at least one processor to provide the first signal to the actuator, and the image sensor to transmit information of the lens from the actuator
- a second interface for acquiring lens position information corresponding to the position may be included.
- An electronic device includes a lens, an image sensor generating image data from incident light incident through the lens, an actuator capable of driving the lens, and an interface between the image sensor and the actuator. It may include at least one processor coupled thereto. The at least one processor controls the actuator to provide a first signal including lens driving information for driving the lens to the actuator through at least a first path of the interface, and transmits the first signal to the interface An image frame including the image data and the lens driving information may be provided to the image sensor through at least a second path of the image sensor, and may be obtained from the image sensor.
- VDIS, TNR, chromatic aberration correction, lens distortion correction, etc. may be performed on image data based on lens driving information synchronized with image data.
- the electronic device may perform precise image processing by using motion data acquired through a motion sensor and lens driving information synchronized with the image data.
- FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.
- FIG. 2 is a block diagram illustrating a camera module according to various embodiments.
- 3A is a block diagram illustrating a hardware configuration of an electronic device including an interface according to an exemplary embodiment.
- 3B is a block diagram illustrating a hardware configuration of an electronic device including an interface according to an exemplary embodiment.
- 3C is a block diagram illustrating a hardware configuration of an electronic device including an interface according to an exemplary embodiment.
- FIG. 4 is a block diagram illustrating a hardware configuration of an electronic device including an interface according to an exemplary embodiment.
- FIG. 5 is a flowchart illustrating an operation of obtaining an image frame including lens driving information by a processor according to an exemplary embodiment.
- FIG. 6 is a flowchart illustrating operations of an image sensor, a processor, and an actuator according to an exemplary embodiment.
- FIG. 7 illustrates an example of lens driving information according to an exemplary embodiment.
- FIG. 8 illustrates an example of an image frame including lens driving information according to an exemplary embodiment.
- FIG. 9 illustrates an example of an image frame including lens driving information according to an exemplary embodiment.
- FIG. 1 is a block diagram of an electronic device 101 within a network environment 100 according to various embodiments.
- an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 .
- a first network 198 eg, a short-range wireless communication network
- the server 108 e.g, a long-distance wireless communication network
- the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or the antenna module 197 may be included.
- at least one of these components eg, the connection terminal 178) may be omitted or one or more other components may be added.
- some of these components eg, sensor module 176, camera module 180, or antenna module 197) are integrated into one component (eg, display module 160). It can be.
- the processor 120 for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, the processor 120 transfers commands or data received from other components (eg, sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 .
- software eg, the program 140
- the processor 120 transfers commands or data received from other components (eg, sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 .
- the processor 120 may include a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit ( NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor).
- a main processor 121 eg, a central processing unit or an application processor
- a secondary processor 123 eg, a graphic processing unit, a neural network processing unit ( NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor.
- NPU neural network processing unit
- the secondary processor 123 may be implemented separately from or as part of the main processor 121 .
- the secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states.
- the auxiliary processor 123 eg, an image signal processor or a communication processor
- the auxiliary processor 123 may include a hardware structure specialized for processing an artificial intelligence model.
- AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108).
- the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited.
- the artificial intelligence model may include a plurality of artificial neural network layers.
- Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples.
- the artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.
- the memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101 .
- the data may include, for example, input data or output data for software (eg, program 140) and commands related thereto.
- the memory 130 may include volatile memory 132 or non-volatile memory 134 .
- the program 140 may be stored as software in the memory 130 and may include, for example, an operating system 142 , middleware 144 , or an application 146 .
- the input module 150 may receive a command or data to be used by a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user).
- the input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
- the sound output module 155 may output sound signals to the outside of the electronic device 101 .
- the sound output module 155 may include, for example, a speaker or a receiver.
- the speaker can be used for general purposes such as multimedia playback or recording playback.
- a receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.
- the display module 160 may visually provide information to the outside of the electronic device 101 (eg, a user).
- the display module 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device.
- the display module 160 may include a touch sensor configured to detect a touch or a pressure sensor configured to measure the intensity of force generated by the touch.
- the audio module 170 may convert sound into an electrical signal or vice versa. According to an embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).
- the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).
- the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do.
- the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a bio sensor, It may include a temperature sensor, humidity sensor, or light sensor.
- the interface 177 may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device 101 to an external electronic device (eg, the electronic device 102).
- the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
- HDMI high definition multimedia interface
- USB universal serial bus
- SD card interface Secure Digital Card interface
- audio interface audio interface
- connection terminal 178 may include a connector through which the electronic device 101 may be physically connected to an external electronic device (eg, the electronic device 102).
- the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
- the haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses.
- the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
- the camera module 180 may capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
- the power management module 188 may manage power supplied to the electronic device 101 .
- the power management module 188 may be implemented as at least part of a power management integrated circuit (PMIC), for example.
- PMIC power management integrated circuit
- the battery 189 may supply power to at least one component of the electronic device 101 .
- the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
- the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). Establishment and communication through the established communication channel may be supported.
- the communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
- the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : a local area network (LAN) communication module or a power line communication module).
- a wireless communication module 192 eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module
- GNSS global navigation satellite system
- wired communication module 194 eg, : a local area network (LAN) communication module or a power line communication module.
- a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a telecommunications network such as a computer network (eg, a LAN or a WAN).
- a telecommunications network such as a computer network (eg, a LAN or a WAN).
- These various types of communication modules may be integrated as one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips).
- the wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199.
- subscriber information eg, International Mobile Subscriber Identifier (IMSI)
- IMSI International Mobile Subscriber Identifier
- the electronic device 101 may be identified or authenticated.
- the wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, NR access technology (new radio access technology).
- NR access technologies include high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and access of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low latency (URLLC)).
- eMBB enhanced mobile broadband
- mMTC massive machine type communications
- URLLC ultra-reliable and low latency
- -latency communications can be supported.
- the wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
- the wireless communication module 192 uses various technologies for securing performance in a high frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. Technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna may be supported.
- the wireless communication module 192 may support various requirements defined for the electronic device 101, an external electronic device (eg, the electronic device 104), or a network system (eg, the second network 199).
- the wireless communication module 192 is a peak data rate for eMBB realization (eg, 20 Gbps or more), a loss coverage for mMTC realization (eg, 164 dB or less), or a U-plane latency for URLLC realization (eg, Example: downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) may be supported.
- eMBB peak data rate for eMBB realization
- a loss coverage for mMTC realization eg, 164 dB or less
- U-plane latency for URLLC realization eg, Example: downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less
- the antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device).
- the antenna module 197 may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB).
- the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is selected from the plurality of antennas by the communication module 190, for example. can be chosen A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna.
- other components eg, a radio frequency integrated circuit (RFIC) may be additionally formed as a part of the antenna module 197 in addition to the radiator.
- RFIC radio frequency integrated circuit
- the antenna module 197 may form a mmWave antenna module.
- the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a lower surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.
- peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
- signal e.g. commands or data
- commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 .
- Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 .
- all or part of operations executed in the electronic device 101 may be executed in one or more external electronic devices among the external electronic devices 102 , 104 , or 108 .
- the electronic device 101 when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself.
- one or more external electronic devices may be requested to perform the function or at least part of the service.
- One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 .
- the electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed.
- cloud computing distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
- the electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
- the external electronic device 104 may include an internet of things (IoT) device.
- Server 108 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 104 or server 108 may be included in the second network 199 .
- the electronic device 101 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
- Electronic devices may be devices of various types.
- the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance.
- a portable communication device eg, a smart phone
- a computer device e.g., a smart phone
- a portable multimedia device e.g., a portable medical device
- a camera e.g., a portable medical device
- a camera e.g., a portable medical device
- a camera e.g., a camera
- a wearable device e.g., a smart bracelet
- first, second, or first or secondary may simply be used to distinguish a given component from other corresponding components, and may be used to refer to a given component in another aspect (eg, importance or order) is not limited.
- a (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.”
- the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.
- module used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeably interchangeable with terms such as, for example, logic, logic blocks, components, or circuits.
- a module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions.
- the module may be implemented in the form of an application-specific integrated circuit (ASIC).
- ASIC application-specific integrated circuit
- a storage medium eg, internal memory 136 or external memory 138
- a machine eg, electronic device 101
- a processor eg, the processor 120
- a device eg, the electronic device 101
- the one or more instructions may include code generated by a compiler or code executable by an interpreter.
- the device-readable storage medium may be provided in the form of a non-transitory storage medium.
- the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.
- a signal e.g. electromagnetic wave
- the method according to various embodiments disclosed in this document may be included and provided in a computer program product.
- Computer program products may be traded between sellers and buyers as commodities.
- a computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store TM ) or on two user devices (e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones.
- a device e.g. compact disc read only memory (CD-ROM)
- an application store e.g. Play Store TM
- It can be distributed (eg downloaded or uploaded) online, directly between smart phones.
- at least part of the computer program product may be temporarily stored or temporarily created in a storage medium readable by a device such as a manufacturer's server, an application store server, or a relay server's memory.
- each component (eg, module or program) of the components described above may include a single object or a plurality of objects, and some of the multiple objects may be separately disposed in other components.
- one or more components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added.
- a plurality of components eg modules or programs
- the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. .
- operations performed by modules, programs, or other components are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations are executed in a different order, omitted, or , or one or more other operations may be added.
- the camera module 180 includes a lens assembly 210, a flash 220, an image sensor 230, an image stabilizer 240, a memory 250 (eg, a buffer memory), or an image signal processor. (260).
- the lens assembly 210 may collect light emitted from a subject that is an image capturing target.
- the lens assembly 210 may include one or more lenses.
- the camera module 180 may include a plurality of lens assemblies 210 . In this case, the camera module 180 may form, for example, a dual camera, a 360-degree camera, or a spherical camera.
- Some of the plurality of lens assemblies 210 may have the same lens properties (eg, angle of view, focal length, auto focus, f number, or optical zoom), or at least one lens assembly may have the same lens properties as other lens assemblies. may have one or more lens properties different from the lens properties of .
- the lens assembly 210 may include, for example, a wide-angle lens or a telephoto lens.
- the flash 220 may emit light used to enhance light emitted or reflected from a subject.
- the flash 220 may include one or more light emitting diodes (eg, a red-green-blue (RGB) LED, a white LED, an infrared LED, or an ultraviolet LED), or a xenon lamp.
- the image sensor 230 may acquire an image corresponding to the subject by converting light emitted or reflected from the subject and transmitted through the lens assembly 210 into an electrical signal.
- the image sensor 230 is, for example, an image sensor selected from among image sensors having different properties, such as an RGB sensor, a black and white (BW) sensor, an IR sensor, or a UV sensor, It may include a plurality of image sensors having a property, or a plurality of image sensors having other properties.
- Each image sensor included in the image sensor 230 may be implemented using, for example, a charged coupled device (CCD) sensor or a complementary metal oxide semiconductor (CMOS) sensor.
- CCD charged coupled device
- CMOS complementary metal oxide semiconductor
- the image stabilizer 240 moves at least one lens or image sensor 230 included in the lens assembly 210 in a specific direction in response to movement of the camera module 180 or the electronic device 101 including the same. Operation characteristics of the image sensor 230 may be controlled (eg, read-out timing is adjusted, etc.). This makes it possible to compensate at least part of the negative effect of the movement on the image being taken.
- the image stabilizer 240 is configured to detect the camera module 180 by using a gyro sensor or an acceleration sensor disposed inside or outside the camera module 180. Alternatively, such a movement of the electronic device 101 may be detected.
- the image stabilizer 240 may be implemented as, for example, an optical image stabilizer.
- the memory 250 may at least temporarily store at least a portion of an image acquired through the image sensor 230 for a next image processing task. For example, when image acquisition is delayed according to the shutter, or a plurality of images are acquired at high speed, the acquired original image (eg, a Bayer-patterned image or a high-resolution image) is stored in the memory 250 and , a copy image (eg, a low resolution image) corresponding thereto may be previewed through the display module 160 . Thereafter, when a specified condition is satisfied (eg, a user input or a system command), at least a part of the original image stored in the memory 250 may be obtained and processed by the image signal processor 260 , for example. According to one embodiment, the memory 250 may be configured as at least a part of the memory 130 or as a separate memory operated independently of the memory 130 .
- the image signal processor 260 may perform one or more image processes on an image acquired through the image sensor 230 or an image stored in the memory 250 .
- the one or more image processes for example, depth map generation, 3D modeling, panorama generation, feature point extraction, image synthesis, or image compensation (eg, noise reduction, resolution adjustment, brightness adjustment, blurring ( blurring, sharpening, or softening.
- the image signal processor 260 may include at least one of the components included in the camera module 180 (eg, an image sensor). 230) may be controlled (eg, exposure time control, read-out timing control, etc.)
- the image processed by the image signal processor 260 is stored again in the memory 250 for further processing.
- the image signal processor 260 may be configured as at least a part of the processor 120 or may be configured as a separate processor that operates independently of the processor 120.
- the image signal processor 260 may be configured as a processor 120 When configured as a separate processor, at least one image processed by the image signal processor 260 may be displayed through the display module 160 as it is or after additional image processing by the processor 120 .
- the electronic device 101 may include a plurality of camera modules 180 each having different properties or functions.
- at least one of the plurality of camera modules 180 may be a wide-angle camera, and at least the other may be a telephoto camera.
- at least one of the plurality of camera modules 180 may be a front camera, and at least another one may be a rear camera.
- 3A is a block diagram illustrating a hardware configuration of an electronic device 301 including an interface according to an exemplary embodiment.
- 3B is a block diagram illustrating a hardware configuration of an electronic device 302 including an interface according to an exemplary embodiment.
- 3C is a block diagram illustrating a hardware configuration of an electronic device 303 including an interface according to an exemplary embodiment.
- the electronic devices 301, 302, and 303 may include a lens 310, image sensors 320 and 321, an actuator 330, and a processor 340.
- the electronic devices 301 , 302 , and 303 may be understood as the electronic device 101 shown in FIG. 1 .
- the lens 310 may be understood as the lens assembly 210 shown in FIG. 2 .
- the processor 340 may be understood to include at least one of the processor 120 shown in FIG. 1 or the image signal processor 260 shown in FIG. 2 .
- the lens 310 may be understood as a lens assembly including at least one lens (eg, the lens assembly 210 of FIG. 2 ). In one embodiment, the lens 310 may move forward and backward along the optical axis to change the focal length or operate so that a target object to be a subject can be clearly photographed.
- lens 310 may be understood as a liquid lens.
- liquid oil may be included in the interior of the lens 310 (eg, liquid lens), and an outer portion of the lens 310 may be formed of a thin membrane.
- the shape of the lens 310 (eg, liquid lens) may be deformed.
- the processor 340 may perform an auto focus (AF) function by controlling the actuator 330 to change the shape of the lens 310 .
- the actuator 330 may apply an external force to the lens 310 while moving in an optical axis direction.
- the outside of the lens 310 may be bent in a direction parallel to the optical axis according to the direction of the external force applied by the actuator 330 .
- the processor 340 may perform an optical image stabilization (OIS) function by controlling the actuator 330 to deform the shape of the lens 310 .
- OIS optical image stabilization
- the image sensors 320 and 321 may be complementary metal oxide semiconductor (CMOS) sensors or charged coupled device (CCD) sensors.
- CMOS complementary metal oxide semiconductor
- CCD charged coupled device
- a plurality of individual pixels are integrated in the image sensors 320 and 321, and each individual pixel may include a micro lens, a color filter, and a photodiode. Each individual pixel can convert input light into an electrical signal as a kind of photodetector. Photodetectors generally cannot detect the wavelength of the captured light by themselves and cannot determine color information.
- the light detector may include a photodiode.
- the image sensors 320 and 321 may amplify a current generated by light received through the lens 310 through a photoelectric effect of a light receiving element.
- each individual pixel includes a photoelectric transformation element (or a position sensitive detector (PSD)) and a plurality of transistors (eg, a reset transistor, a transfer transistor, a select transistor, and a driver transistor).
- PSD position sensitive detector
- the image sensors 320 and 321 may generate image data from incident light incident through the lens 310 .
- the image data may include various color values acquired through a color filter array.
- the color filter array may include a red, green, blue (RGB) pattern, a red, green, blue, emerald (RGBE) pattern, a cyan, yellow, magenta (CYM) pattern, and a cyan, yellow, green, magenta (CYGM) pattern.
- RGBW red, green, blue, white
- actuator 330 may drive lens 310 .
- the actuator 330 may perform the AF function and the OIS function under the control of the processor 340 .
- the processor 340 may move the lens 310 in the optical axis direction through the actuator 330 to perform an AF function so that the subject can be captured clearly.
- the processor 340 may perform the AF function by controlling the actuator 330 to change the shape of the lens 310 (eg, liquid lens).
- the processor 340 may perform an OIS function of correcting shaking of the electronic devices 301 , 302 , and 303 by moving the lens 310 through the actuator 330 .
- the processor 340 may control the OIS function by controlling the actuator 330 to move the position of the lens 310 in a direction opposite to the direction in which the electronic devices 301, 302, and 303 move.
- the processor 340 may perform the OIS function by controlling the actuator 330 to change the shape of the lens 310 (eg, liquid lens).
- the processor 340 may include at least one of an OIS control circuit, an application processor (AP), and an image signal processor (eg, the image signal processor 260 of FIG. 2 ). In one embodiment, processor 340 may be referred to as at least one processor.
- the processor 340 may output a first signal including lens driving information for driving the lens 310 by controlling the actuator 330 .
- the processor 340 may provide the first signal to the actuator 330 .
- the actuator 330 may move the position of the lens 310 or change the shape of the lens 310 (eg, liquid lens) based on the lens driving information included in the first signal.
- the processor 340 may provide the first signal to the image sensor 320 .
- the image sensor 320 may generate an image frame including lens driving information included in the first signal.
- the image sensor 320 may generate an image frame based on lens driving information included in the first signal acquired from the processor 340 .
- the image sensor 320 may generate image data from incident light incident through the lens 310 moved (or changed in shape) based on the lens driving information.
- the image sensor 320 may obtain a first signal from the processor 340 .
- the image sensor 320 may generate an image frame including the image data and lens driving information included in the first signal. It may be understood that the image data and the lens driving information are synchronized with each other.
- the image sensor 320 may provide the image frame to the processor 340 .
- the processor 340 may obtain an image frame including lens driving information from the image sensor 320 .
- the processor 340 may perform image processing on image data based on lens driving information included in an image frame.
- the processor 340 may perform at least one of video digital image stabilization (VDIS), temporal noise reduction (TNR), chromatic aberration correction, and lens distortion correction on image data based on lens driving information.
- VDIS video digital image stabilization
- TNR temporal noise reduction
- chromatic aberration correction chromatic aberration correction
- lens distortion correction lens distortion correction
- the electronic device 301 includes a first interface 351a connecting the processor 340 and the actuator 330 and a second interface 352a connecting the processor 340 and the image sensor 320. ) may be included. As shown, the first interface 351a and the second interface 352a may include a predetermined common section.
- the processor 340 may provide the first signal to the actuator 330 through the first interface 351a.
- the actuator 330 may drive the lens 310 based on lens driving information included in the first signal acquired through the first interface 351a.
- the processor 340 may provide the first signal to the image sensor 320 through the second interface 352a.
- the image sensor 320 may generate an image frame based on lens driving information included in the first signal obtained through the second interface 352a.
- the electronic device 302 may include a first interface 351b and a second interface 352b.
- the description of the first interface 351a and the second interface 352a described with respect to FIG. 3A is the first interface 351b shown in FIG. 3B except for the description related to arrangement. , and may also be applied to the second interface 352b.
- the first interface 351b and the second interface 352b may not include a common section and may be implemented as separate interfaces.
- the electronic device 303 may include a first interface 351c and a second interface 352c.
- the second interface 352c of FIG. 3C may be an interface connecting the actuator 330 and the image sensor 321 .
- the processor 340 may provide the first signal to the actuator 330 through the first interface 351c.
- the image sensor 321 may obtain lens position information from the actuator 330 through the second interface 352c.
- the actuator 330 may include a hall sensor capable of detecting the position of the lens 310 .
- the image sensor 321 may request lens position information from the actuator 330 through the second interface 352c.
- the image sensor 321 may receive lens position information acquired by the hall sensor from the actuator 330 through the second interface 352c in response to the request.
- the image sensor 321 may generate an image frame based on lens position information acquired from the actuator 330 . For example, it may be understood that the image data included in the image frame and the lens position information are synchronized with each other.
- the electronic devices 301, 302, and 303 may further include a third interface 353 connecting the image sensors 320 and 321 and the processor 340.
- the image sensors 320 and 321 may provide image frames to the processor 340 through the third interface 353 .
- the image sensor 320 generates an image frame including image data and lens driving information obtained from the processor 340, and transmits the image frame to the processor 340 through the third interface 353.
- the image sensor 321 generates an image frame including image data and lens position information acquired from the actuator 330, and transmits the image frame to the processor 340 through the third interface 353.
- the processor 340 receiving image frames from the image sensors 320 and 321 through the third interface 353 may be an image signal processor.
- the first interfaces 351a, 351b, and 351c and the second interfaces 352a, 352b, and 352c may be an inter-integrated circuit (I2C), an improved inter-integrated circuit (I3C), or a serial peripheral interface (SPI). ) may be at least one of
- I2C inter-integrated circuit
- I3C improved inter-integrated circuit
- SPI serial peripheral interface
- ) may be at least one of
- at least one of the first interfaces 351a, 351b, and 351c or the second interfaces 352a, 352b, and 352c may be an interface supporting bi-directional communication.
- at least one of the first interfaces 351a, 351b, and 351c or the second interfaces 352a, 352b, and 352c may be an interface supporting unidirectional communication.
- the third interface 353 may be a mobile industry processor interface (MIPI).
- MIPI mobile industry processor interface
- the third interface 353 may be an interface supporting one-way communication from the image sensors 320 and 321 to the processor 340 .
- the third interface 353 may be an interface supporting bi-directional communication between the image sensors 320 and 321 and the processor 340 .
- FIG. 4 is a block diagram illustrating a hardware configuration of an electronic device 400 including an interface according to an exemplary embodiment.
- the electronic device 400 includes a lens 410, an image sensor 420, an AF module 432, an OIS module 434, an OIS control circuit 442, an AP 444, and a motion sensor. (490).
- the components described in FIGS. 3A to 3C may be briefly described or omitted.
- the electronic device 400 may include a motion sensor 490.
- a processor eg, the OIS control circuit 442 or the AP 444 ) may detect the movement of the electronic device 400 through the motion sensor 490 .
- the motion sensor 490 may provide motion data corresponding to the movement of the electronic device 400 to the OIS control circuit 442 .
- the motion sensor 490 may provide motion data directly to the OIS control circuit 442 .
- the AP 444 may obtain information about the movement of the electronic device 400 detected by the motion sensor 490 and provide this information to the OIS control circuit 442 .
- the motion sensor 490 may include at least one of an acceleration sensor, a gyro sensor (gyroscope), a magnetic sensor, or a hall sensor.
- the acceleration sensor may measure acceleration acting in three axes (eg, X-axis, Y-axis, or Z-axis) of the electronic device 400 .
- the above sensors are exemplary, and the motion sensor 490 may further include at least one other type of sensor.
- the electronic device 400 may include an AF module 432 and an OIS module 434.
- the AF module 432 may drive the lens 410 to perform an AF function.
- the AF module 432 may perform the AF function by changing the shape of the lens 410 (eg, liquid lens).
- the AF module 432 may perform the AF function by moving the position of the lens 410 .
- the OIS module 434 may perform the OIS function by driving the lens 410 .
- the OIS module 434 may perform the OIS function by moving the position of the lens 410 .
- the OIS module 434 may perform the OIS function by changing the shape of the lens 410 (eg, liquid lens).
- the electronic device 400 may include an OIS control circuit 442 and an AP 444.
- AP 444 may be understood to include an image signal processor (eg, image signal processor 260 of FIG. 2 ).
- the OIS control circuit 442 and the AP 444 may be disposed in separate configurations as shown in FIG. 4, and in another embodiment, the OIS control circuit 442 is the AP 444. It can also be placed inside.
- the electronic device 400 may include a system on chip (SoC) in which processing units such as an AP 444, an OIS control circuit 442, and an image signal processor are integrated.
- SoC system on chip
- the OIS control circuit 442 may perform the OIS function by controlling the OIS module 434 to move the position of the lens 410 .
- the OIS control circuit 442 may perform the OIS function by controlling the OIS module 434 to change the shape of the lens 410 (eg, liquid lens).
- the OIS control circuit 442 may obtain motion data corresponding to the movement of the electronic device 400 from the motion sensor 490 .
- the OIS control circuit 442 may control the OIS module 434 to move the position of the lens 410 based on the motion data.
- the OIS control circuit 442 may provide a 1-1 signal including lens driving information for moving the position of the lens 410 to the OIS module 434 and the image sensor 420.
- the lens driving information may be OIS location information for the OIS control circuit 442 to move the location of the lens 410 .
- the OIS control circuit 442 may provide the 1-1 signal to the OIS module 434 through the 1-1 interface 451-1.
- the OIS control circuit 442 may provide the 1-1 signal to the image sensor 420 through the 2-1 interface 452-1.
- the 1-1 interface 451-1 and the 2-1 interface 452-1 may have a common section.
- the 1-1 interface 451-1 and the 2-1 interface 452-1 may be I2C, I3C, or SPI.
- the AP 444 may perform an AF function by controlling the AF module 432 to drive the lens 410 .
- the AP 444 may provide the 1-2 signals including lens driving information for driving the lens 410 to the AF module 432 and the image sensor 420 .
- the lens driving information may be AF position information for the AP 444 to change the shape of the lens 410 (eg, liquid lens).
- the AP 444 may provide the 1-2 signal to the AF module 432 through the 1-2 interface 451-2.
- the AP 444 may provide the 1-2 signal to the image sensor 420 through the 2-2 interface 452-2.
- the 1-2 interface 451-2 and the 2-2 interface 452-2 may have a common section.
- the first-second interface 451-2 and the second-second interface 452-2 may be I2C, I3C, or SPI.
- the electronic device 400 may include a third interface 453.
- the image sensor 420 includes lens driving information included in the 1-1 signal obtained from the OIS control circuit 442, and lens driving information included in the 1-2 signal obtained from the AP 444.
- An image frame containing information can be created.
- the image sensor 420 may provide the image frame to the AP 444 through the third interface 453 .
- the image sensor 420 may provide the image frame to an image signal processor included in the AP 444 .
- the third interface 453 may be MIPI.
- the electronic device 400 may include a fourth interface 454 .
- the AP 444 may generate a second signal for controlling the image sensor 420 .
- the second signal may include at least some of information about an exposure time of the image sensor 420 or a time to read out image data.
- the AP 444 may provide the second signal to the image sensor 420 through the fourth interface 454 .
- the fourth interface 454 may be I2C, I3C, or SPI.
- the lens 410 of FIG. 4 may correspond to the lens 310 of FIGS. 3A to 3C
- the image sensor 420 of FIG. 4 may correspond to the lens 310 of FIGS. 3A to 3B.
- the AF module 432 and OIS module 434 of FIG. 4 may be included in the actuator 330 of FIGS. 3A to 3C.
- the OIS control circuit 442 and AP 444 of FIG. 4 may be included in the processor 340 of FIGS. 3A to 3C.
- the 1-1 signal or the 1-2 signal described with reference to FIG. 4 may correspond to the first signal described with reference to FIGS. 3A to 3C.
- the 1-1 interface 451-1 or the 1-2 interface 451-2 may correspond to the first interface 351a of FIG. 3A.
- the 2-1 interface 452-1 or the 2-2 interface 452-2 may correspond to the second interface 352a of FIG. 3A.
- the third interface 453 of FIG. 4 may correspond to the third interface 353 of FIGS. 3A to 3C.
- FIG. 5 is a flowchart illustrating an operation of obtaining, by the processor 340, an image frame including lens driving information according to an exemplary embodiment.
- the operation described in FIG. 5 may be performed by the processor 340 shown in FIGS. 3A to 3C.
- the processor 340 may be understood to include the OIS control circuit 442 and the AP 444 shown in FIG. 4 .
- the processor 340 may control the actuator 330 to provide a first signal including lens driving information for driving the lens 310 to the actuator 330.
- the processor 340 may provide the first signal to the actuator 330 through at least a first path.
- the processor 340 transmits the first signal to the actuator 330 through the first interface 351a of FIG. 3A, the first interface 351b of FIG. 3B, or the first interface 351c of FIG. 3C. ) can be provided.
- a section excluding a common section with the second interface 352a among the first interface 351a of FIG. 3A may be referred to as the first path.
- the first interface 351b of FIG. 3B and the first interface 351c of FIG. 3C may be referred to as a first path.
- the OIS control circuit 442 may provide the 1-1 signal to the OIS module 434 through the 1-1 interface 451-1 of FIG. 4 .
- the AP 444 may provide the 1-2 signal to the AF module 432 through the 1-2 interface 451-2 of FIG. 4 .
- a section excluding the common section with the 2-1 interface 452-1 among the 1-1 interface 451-1 of FIG. 4 may be referred to as the first path.
- a section excluding the common section with the 2-2 interface 452-2 among the 1-2 interface 451-2 of FIG. 4 may be referred to as the first path.
- the processor 340 may provide the first signal to the image sensor 320.
- the processor 340 may provide the first signal to the image sensor 320 through at least a second path.
- the processor 340 may provide the first signal to the actuator 330 through the second interface 352a of FIG. 3A or the second interface 352b of FIG. 3B.
- a section excluding a common section with the first interface 351a among the second interfaces 352a of FIG. 3A may be referred to as a second path.
- the second interface 352b of FIG. 3B may be referred to as a second path.
- the image sensor 321 may receive lens position information corresponding to lens driving information included in the first signal through the second interface 352c of FIG. 3C.
- the second interface 352c of FIG. 3C may be referred to as a second path.
- the OIS control circuit 442 may provide the 1-1 signal to the OIS module 434 through the 2-1 interface 452-1 of FIG. 4 .
- the AP 444 may provide the 1-2 signal to the AF module 432 through the 2-2 interface 452-2 of FIG. 4 .
- a section excluding a common section with the 1-1 interface 451-1 among the 2-1 interface 452-1 of FIG. 4 may be referred to as a second path.
- a section of the 2-2 interface 452-2 of FIG. 4 excluding a common section with the 1-2 interface 451-2 may be referred to as a second path.
- the processor 340 may obtain image data and an image frame including the lens driving information from the image sensors 320 and 321.
- the image data may be understood as image data acquired by the image sensors 320 and 321 to correspond to the first signal (or lens driving information).
- image data included in an image frame acquired by the processor 340 in operation 505 and lens driving information are synchronized with each other.
- the processor 340 may obtain an image frame from the image sensors 320 and 321 through the third interface 353.
- FIG. 6 is a flowchart illustrating operations of the image sensor 320, the processor 340, and the actuator 330 according to an exemplary embodiment. The operations described in FIG. 6 may be performed by the image sensor 320, the processor 340, and the actuator 330 shown in FIGS. 3A and 3B.
- the image sensor 320 may generate image data from incident light.
- the processor 340 may provide a first signal to the actuator 330 and provide the first signal to the image sensor 320 .
- Operation 603 may correspond to operations 501 and 503 described with reference to FIG. 5 .
- the actuator 330 may drive the lens 310 based on the first signal.
- the actuator 330 may move the position of the lens 310 or change the shape of the lens 310 based on the lens driving information included in the first signal.
- operations 603 and 605 are illustrated as being performed later than operation 601, but this is for convenience of description and does not determine the order of operations.
- the image data generated in operation 601 may be acquired at the position of the lens 310 driven by the actuator 330 in operation 605 .
- the image sensor 320 may obtain lens driving information from the processor 340 .
- the image sensor 320 may obtain lens driving information included in the first signal received from the processor 340 .
- the image sensor 320 may generate an image frame including image data and lens driving information.
- the image sensor 320 may provide the image frame to the processor 340.
- the processor 340 may obtain an image frame from the image sensor 320.
- the processor 340 performs VDIS, TNR, chromatic aberration correction (CAC), or lens distortion correction (LDC) for image data based on lens driving information included in the image frame. , lens distortion correction) may be performed.
- the processor 340 may perform VDIS or electric image stabilization (EIS) on image data based on lens driving information.
- the processor 340 may obtain motion data corresponding to the movement of the electronic device 400 through a motion sensor (eg, the motion sensor 490 of FIG. 4 ).
- the processor 340 may perform the OIS function by controlling the actuator 330 to move the lens 310 based on the motion data.
- the processor 340 may use a motion compensation value corresponding to a value obtained by compensating the motion data through the OIS function together with the motion data in order to perform VDIS on image frames on which OIS has been performed. Since the lens driving information included in the image frame includes information corresponding to the motion compensation value, the processor 340 may perform VDIS on image data based on the lens driving information.
- the processor 340 may perform TNR on a plurality of image frames obtained from the image sensor 320 .
- the processor 340 may reduce noise included in the plurality of image frames by applying a filter (eg, a Gaussian filter or an average filter) to the plurality of image frames. have.
- the processor 340 may obtain a motion compensation value corresponding to a value obtained by compensating motion data through an OIS function through lens driving information included in an image frame.
- the processor 340 may perform TNR on a plurality of image frames based on motion data and a motion compensation value corresponding to the lens driving information.
- the incident light incident through the lens 310 varies in the position where the image is formed according to the color (eg, R, G, B) of the incident light, that is, according to the wavelength of the incident light.
- the processor 340 modifies the shape of the lens 310 to perform the AF function or the OIS function, an incident angle at which incident light passes through the lens 310 may change.
- images may be formed at different positions for each color of incident light, resulting in chromatic aberration.
- the image frame received by the processor 340 may include information about the shape (eg, angle) of the lens 310 being deformed.
- the processor 340 may correct chromatic aberration of image data using lens driving information.
- the processor 340 may perform chromatic aberration correction on the image data using lens driving information synchronized with the image data.
- the processor 340 may perform lens distortion correction on image data obtained from the image sensor 320 .
- a degree of barrel distortion of the lens 310 may vary according to a focal length.
- the processor 340 acquires lens driving information synchronized with the image data, barrel distortion included in the image data may be corrected based on the lens driving information.
- FIG. 7 illustrates an example of lens driving information according to an exemplary embodiment.
- the image sensor 320 may provide an image frame including lens driving information along with image data to the processor 340 .
- the image sensor 320 may provide N frame information 710 together with N frame image data to the processor 340, and the N frame information 710 may provide lens driving information.
- a shutter 790 indicates a time point at which exposure of the image sensor 320 starts
- a lead-out 795 indicates a time point at which image data is read out from the image sensor 320 .
- the Nth exposure 719 in FIG. 7 may correspond to a section between the Nth shutter 790 and the Nth leadout 795 .
- the N-th exposure 719, the N+1-th exposure 729, and the N+2-th exposure 739 may correspond to different exposure times. As the time interval between the shutter 790 and the lead-out 795 is changed, the exposure time may be different.
- N frame information 710, N+1 frame information 720, and N+2 frame information 730 are the N-th image frame, the N+1-th image frame, and the N+2-th image frame, respectively. It may refer to lens driving information included in the image frame.
- N, N+1, and N+2 indicate the order of image frames over time, and do not mean information of the next frame (eg, next frame information (NFI)).
- the lens driving information includes at least one of AF location information 701 for performing the AF function by the processor 340 through the actuator 330 and OIS location information 702 for performing the OIS function.
- the image sensor 320 uses information for controlling an AF module (eg, the AF module 432 of FIG. 4 ) among lens driving information included in the first signal acquired from the processor 340 as AF location information. In 701, it can be included in the image frame.
- the image sensor 320 transmits information for controlling an OIS module (eg, the OIS module 434 of FIG. 4 ) among lens driving information included in the first signal obtained from the processor 340 to the OIS location.
- Information 702 can be included in the image frame.
- the N frame information 710 includes first lens driving information 711 obtained by the image sensor 320 from the processor 340 before the Nth exposure 719 of the image sensor 320, and the image Second lens driving information 712 obtained from the processor 340 during the Nth exposure 719 of the sensor 320 may be included.
- the first lens driving information 711 and the second lens driving information 712 may include AF location information 701 and OIS location information 702, respectively.
- the first lens driving information 711 of the N frame information 710 may include 'AF Pos X, OIS Pos X'.
- the 'AF Pos X, OIS Pos X' may refer to lens driving information obtained from the processor 340 before the Nth shutter 790, which is a point before the time shown in FIG. 7 .
- the image sensor 320 includes AF position information 701 of 'AF Pos1' and OIS position information of 'OIS Pos1' 702 after the N-th shutter 790 and before the N-th lead-out 795. is obtained, the second lens driving information 712 of the N frame information 710 may include 'AF Pos1, OIS Pos1'.
- the N+1 frame information 720 is the first lens driving information 721 obtained by the image sensor 320 from the processor 340 before the N+1 th exposure 729 of the image sensor 320. ), and second lens driving information 722 obtained from the processor 340 during the N+1 th exposure 729 of the image sensor 320 .
- the first lens driving information 721 includes lens driving information obtained before the N+1 th shutter 790 corresponding to the N+1 th exposure 729, and the second lens driving information 722 ) may include lens driving information acquired after the N+1 th shutter 790 and before the N+1 th readout 795 .
- the image sensor 320 since the image sensor 320 obtains the AF position information 'AF Pos2' from the processor 340 before the N+1 shutter 790, the first lens of the N+1 frame information 720
- the driving information 721 may include 'AF Pos2, OIS Pos1'.
- the image sensor 320 may generate an image frame including previous OIS location information.
- the processor 340 may perform image processing on image data included in each image frame based on OIS location information included in each image frame. For example, the processor 340, based on the moving distance and/or moving direction of the lens 310 corresponding to the OIS location information included in the N+1 frame information 720, for the N+1 th image data You can perform filter processing (e.g. interpolation). Accordingly, the image sensor 320 may generate an image frame including previously acquired OIS location information even when new OIS location information is not obtained from the processor 340 .
- filter processing e.g. interpolation
- the N+1 frame information 720 The second lens driving information 722 of ) may include 'AF None, OIS Pos2'.
- the image sensor 320 may generate an image frame including 'AF None', unlike OIS location information. Since the electronic devices 301, 302, and 303 minimize the operation of AF during the exposure of the image sensor 320, the image sensor 320 has no AF position information obtained before the lead-out 795 after the shutter 790. In this case, an image frame not including AF location information may be generated.
- the processor 340 may or may not provide the lens driving information to the image sensor 320 regardless of the number of image frames output by the image sensor 320 .
- the lens driving information may be lens driving information included in the first signal acquired by the image sensor 320 from the processor 340 in FIGS. 3A and 3B, but in FIG. 3C the image sensor 321 may be replaced with lens position information obtained from the actuator 330 .
- FIG. 8 illustrates an example of an image frame 800 including lens driving information 811 according to an exemplary embodiment.
- the image frame 800 provided to the processor 340 by the image sensor 320 may include an embedded header 810 and image data 820 .
- the lens driving information 811 may be included in the embedded header 810 of the image frame 800 .
- the lens driving information 811 may be included in an embedded footer of the image frame 800 .
- the lens driving information 811 may include the first lens driving information 711 and the second lens driving information 712 described with reference to FIG. 7 .
- the lens driving information 811 may include AF location information 701 and OIS location information 702 described with reference to FIG. 7 .
- the processor 340 may include first lens driving information 711 obtained before exposure of the image sensor 320 and second lens driving information obtained after exposure of the image sensor and before image data readout. Correction (eg, VDIS, OIS, chromatic aberration correction, lens distortion correction) may be performed on the image data 820 using 712 .
- the processor 340 may obtain lens driving information changed during exposure using lens driving information 811 obtained before and after exposure of the image sensor 320 .
- the processor 340 corrects the image data 820 based on a change in position (or change in shape) of the lens 310 driven by the actuator 330 before, during, and after exposure of the image sensor 320 . can be done
- FIG 9 illustrates an example of an image frame 900 including lens driving information 920 according to an exemplary embodiment.
- the image frame 900 provided to the processor 340 by the image sensor 320 may include image data 910 corresponding to a plurality of lines.
- the image sensor 320 may read out pixel data in units of at least one line, and provide data in units of at least one line in which the read out is performed.
- the image sensor 320 may include lens driving information 920 in a packet header or packet footer area of each of a plurality of lines of the image data 910 .
- the image sensor 320 may include the lens driving information 920 in a packet footer of each of a plurality of lines and provide the same to the processor 340 .
- the image sensor 320 may not only acquire lens driving information before and after exposure of the image sensor 320 as described with reference to FIGS. 7 and 8 , but also obtain image data. A larger amount of lens driving information 920 may be acquired during the process.
- the image sensor 320 may transmit lens driving information of 1 kHz or higher to the processor 340 .
- the image sensor 320 may include the lens driving information 920 in a packet header or packet footer of each of a plurality of lines of the image data 910 .
- the processor 340 when the processor 340 provides the first signal including lens driving information to the actuator 330, it takes a certain amount of time until the actuator 330 drives the lens 310 based on the lens driving information. There may be a delay. Accordingly, the image sensor 320 may match n-th lens driving information with n+m-th image data. For example, m may be understood to correspond to a delay required for the operation of the actuator 330 .
- the lens driving information may be lens driving information included in the first signal acquired by the image sensor 320 from the processor 340 in FIGS. 3A and 3B, but in FIG. 3C the image sensor 321 may be replaced with lens position information obtained from the actuator 330 .
- m when lens driving information is replaced with lens position information, m may be changed to another value.
- An electronic device includes a lens, an image sensor generating image data from incident light incident through the lens, an actuator capable of driving the lens, and a lens drive for driving the lens by controlling the actuator.
- at least one processor outputting a first signal including information, a first interface for the at least one processor to provide the first signal to the actuator, and the at least one processor transmitting the first signal to the image It may include a second interface for providing a sensor.
- the actuator may include an auto focus (AF) module and an optical image stabilization (OIS) module.
- AF auto focus
- OIS optical image stabilization
- the lens is a liquid lens
- the at least one processor controls the AF module to change the shape of the liquid lens to perform an AF function
- the OIS module performs the AF function.
- the OIS function may be performed by controlling the shape of the liquid lens to be deformed.
- An electronic device may include a motion sensor capable of detecting a motion of the electronic device.
- the at least one processor obtains motion data corresponding to the movement of the electronic device from the motion sensor, controls the OIS module to move the position of the lens based on the motion data, and performs the OIS function.
- the first interface and the second interface may have a common section.
- the first interface and the second interface may be at least one of an inter-integrated circuit (I2C), an improved inter-integrated circuit (I3C), and a serial peripheral interface (SPI).
- I2C inter-integrated circuit
- I3C improved inter-integrated circuit
- SPI serial peripheral interface
- the image sensor generates the image data from the incident light, obtains the first signal from the at least one processor through the second interface, and obtains the image data and An image frame including the lens driving information may be generated.
- the electronic device may further include a third interface through which the image sensor provides the image frame to the at least one processor.
- the third interface may be a mobile industry processor interface (MIPI).
- MIPI mobile industry processor interface
- the lens driving information includes first lens driving information obtained by the image sensor from the at least one processor before exposure of the image sensor, and the image data after exposure of the image sensor. and second lens driving information acquired from the at least one processor prior to read-out of the image frame, and the lens driving information may be included in an embedded header or embedded footer of the image frame.
- the image frame may include the image data corresponding to a plurality of lines, and the lens driving information may be included in a packet header or a packet footer of each of the plurality of lines.
- the actuator includes an AF module and an OIS module
- the at least one processor includes an application processor (AP) and an OIS control circuit
- the AP controls the AF module to The AF function may be performed
- the OIS control circuit may perform the OIS function by controlling the OIS module.
- the AP may generate a second signal for controlling the image sensor and provide the second signal to the image sensor through a fourth interface.
- An electronic device includes a lens, an image sensor generating image data from incident light incident through the lens, an actuator capable of driving the lens, and a lens drive for driving the lens by controlling the actuator.
- at least one processor outputting a first signal containing information, a first interface for the at least one processor to provide the first signal to the actuator, and the image sensor corresponding to the position of the lens from the actuator It may include a second interface for obtaining lens position information to.
- the actuator includes a hall sensor capable of detecting a position of the lens, and the image sensor requests the actuator for the lens position information through the second interface; In response to the request, the lens position information obtained by the hall sensor may be received from the actuator through the second interface.
- An electronic device includes a lens, an image sensor generating image data from incident light incident through the lens, an actuator capable of driving the lens, and at least one interface connected to the image sensor and the actuator.
- An image frame including the image data and the lens driving information may be provided to the image sensor through at least a second path of the image sensor, and may be obtained from the image sensor.
- the at least one processor is configured to perform video digital image stabilization (VDIS), temporal noise reduction (TNR), chromatic aberration correction, or lens distortion for the image data based on the lens driving information. At least one of the corrections may be performed.
- VDIS video digital image stabilization
- TNR temporal noise reduction
- chromatic aberration correction or lens distortion for the image data based on the lens driving information. At least one of the corrections may be performed.
- the lens driving information includes AF position information for the at least one processor to perform an AF function through the actuator, or the at least one processor to perform an OIS function through the actuator. It may include at least one of OIS location information to be performed.
- the lens driving information includes first lens driving information obtained by the image sensor from the at least one processor before exposure of the image sensor, and the image data after exposure of the image sensor. and second lens driving information acquired from the at least one processor prior to read-out of the image frame, and the lens driving information may be included in an embedded header or embedded footer of the image frame.
- the image frame may include the image data corresponding to a plurality of lines, and the lens driving information may be included in a packet header or packet footer area of each of the plurality of lines.
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Abstract
Description
Claims (15)
- 전자 장치에 있어서,렌즈;상기 렌즈를 통해 입사되는 입사 광으로부터 이미지 데이터를 생성하는 이미지 센서;상기 렌즈를 구동하는 액추에이터;상기 액추에이터를 제어하여 상기 렌즈를 구동하기 위한 렌즈 구동 정보를 포함하는 제1 신호를 출력하는 적어도 하나의 프로세서;상기 적어도 하나의 프로세서가 상기 제1 신호를 상기 액추에이터에 제공하기 위한 제1 인터페이스; 및상기 적어도 하나의 프로세서가 상기 제1 신호를 상기 이미지 센서에 제공하기 위한 제2 인터페이스를 포함하는, 전자 장치.
- 청구항 1에 있어서,상기 액추에이터는 AF(auto focus) 모듈과 OIS(optical image stabilization) 모듈을 포함하는, 전자 장치.
- 청구항 2에 있어서,상기 렌즈는 액체 렌즈를 포함하고,상기 적어도 하나의 프로세서는:상기 AF 모듈이 상기 액체 렌즈의 형상을 변형시키도록 제어하여 AF 기능을 수행하고,상기 OIS 모듈이 상기 액체 렌즈의 형상을 변형시키도록 제어하여 OIS 기능을 수행하는, 전자 장치.
- 청구항 2에 있어서,상기 전자 장치의 움직임을 감지할 수 있는 모션 센서를 포함하고,상기 적어도 하나의 프로세서는:상기 모션 센서로부터 상기 전자 장치의 움직임에 대응하는 모션 데이터를 획득하고,상기 모션 데이터를 기반으로, 상기 OIS 모듈이 상기 렌즈의 위치를 이동시키도록 제어하여 OIS 기능을 수행하는, 전자 장치.
- 청구항 1에 있어서,상기 제1 인터페이스와 상기 제2 인터페이스는 공통 구간을 포함하는, 전자 장치.
- 청구항 1에 있어서,상기 제1 인터페이스와 상기 제2 인터페이스는 I2C(inter-integrated circuit), I3C(improved inter-integrated circuit), 또는 SPI(serial peripheral interface) 중 적어도 하나인, 전자 장치.
- 청구항 1에 있어서,상기 이미지 센서는:상기 입사 광으로부터 상기 이미지 데이터를 생성하고,상기 적어도 하나의 프로세서로부터 상기 제2 인터페이스를 통해 상기 제1 신호를 획득하고,상기 이미지 데이터 및 상기 렌즈 구동 정보를 포함하는 이미지 프레임을 생성하는, 전자 장치.
- 청구항 7에 있어서,상기 이미지 센서가 상기 이미지 프레임을 상기 적어도 하나의 프로세서로 제공하기 위한 제3 인터페이스를 더 포함하는, 전자 장치.
- 청구항 8에 있어서,상기 제3 인터페이스는 MIPI(mobile industry processor interface)를 포함하는, 전자 장치.
- 청구항 7에 있어서,상기 렌즈 구동 정보는 상기 이미지 센서가 상기 이미지 센서의 노출 이전에 상기 적어도 하나의 프로세서로부터 획득한 제1 렌즈 구동 정보, 및 상기 이미지 센서의 노출 이후 상기 이미지 데이터의 리드 아웃 이전에 상기 적어도 하나의 프로세서로부터 획득한 제2 렌즈 구동 정보를 포함하고,상기 렌즈 구동 정보는 상기 이미지 프레임의 임베디드 헤더 또는 임베디드 푸터에 포함된, 전자 장치.
- 청구항 7에 있어서,상기 이미지 프레임은 복수 개의 라인들에 대응하는 상기 이미지 데이터를 포함하고,상기 렌즈 구동 정보는 상기 복수 개의 라인 각각의 패킷 헤더 또는 패킷 푸터에 포함된, 전자 장치.
- 청구항 1에 있어서,상기 액추에이터는 AF 모듈과 OIS 모듈을 포함하고,상기 적어도 하나의 프로세서는 AP(application processor)와 OIS 제어회로를 포함하고,상기 AP는 상기 AF 모듈을 제어하여 AF 기능을 수행하고,상기 OIS 제어회로는 상기 OIS 모듈을 제어하여 OIS 기능을 수행하는, 전자 장치.
- 청구항 12에 있어서,상기 AP는:상기 이미지 센서를 제어하기 위한 제2 신호를 생성하고,제4 인터페이스를 통해 상기 제2 신호를 상기 이미지 센서에 제공하는, 전자 장치.
- 전자 장치에 있어서,렌즈;상기 렌즈를 통해 입사되는 입사 광으로부터 이미지 데이터를 생성하는 이미지 센서;상기 렌즈를 구동하는 액추에이터;상기 액추에이터를 제어하여 상기 렌즈를 구동하기 위한 렌즈 구동 정보를 포함하는 제1 신호를 출력하는 적어도 하나의 프로세서;상기 적어도 하나의 프로세서가 상기 제1 신호를 상기 액추에이터에 제공하기 위한 제1 인터페이스; 및상기 이미지 센서가 상기 액추에이터로부터 상기 렌즈의 위치에 대응하는 렌즈 위치 정보를 획득하기 위한 제2 인터페이스를 포함하는, 전자 장치.
- 청구항 14에 있어서,상기 액추에이터는 상기 렌즈의 위치를 감지할 수 있는 홀 센서를 포함하고,상기 이미지 센서는:상기 제2 인터페이스를 통해 상기 액추에이터에 상기 렌즈 위치 정보를 요청하고,상기 요청에 응답하여 상기 액추에이터로부터 상기 홀 센서에 의해 획득된 상기 렌즈 위치 정보를 상기 제2 인터페이스를 통해 수신하는, 전자 장치.
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KR20190132126A (ko) * | 2018-05-18 | 2019-11-27 | 엘지이노텍 주식회사 | 카메라 모듈 |
KR20190136269A (ko) * | 2018-05-30 | 2019-12-10 | 엘지이노텍 주식회사 | 렌즈 구동 장치 및 이를 포함하는 카메라 모듈 및 광학 기기 |
KR20200036264A (ko) * | 2018-09-28 | 2020-04-07 | 삼성전자주식회사 | 자동 초점 방법 및 이를 수행하는 전자 장치 |
JP2020064283A (ja) * | 2018-10-15 | 2020-04-23 | 旭化成エレクトロニクス株式会社 | レンズ駆動装置、レンズ駆動方法、およびプログラム |
KR20200100498A (ko) * | 2019-02-18 | 2020-08-26 | 삼성전자주식회사 | 전자 장치 및 그 전자 장치의 자동 초점 제어 방법 |
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US20230122998A1 (en) | 2023-04-20 |
EP4329286A1 (en) | 2024-02-28 |
CN117378207A (zh) | 2024-01-09 |
KR20220160341A (ko) | 2022-12-06 |
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