Electronic device, method, and storage medium for reducing shutter delay of camera

Abstract

Provided are an electronic device, a method, and a storage medium for reducing a shutter delay of a camera. The electronic device comprises: a camera; a display; at least one processor; and a memory storing instructions individually or collectively executed by the at least one processor. The instructions stored in the memory are configured to cause the electronic device to store, in the memory, at least one frame detected by the camera and setting information of the at least one frame. The instructions are configured to cause the electronic device to perform image processing on the at least one frame and display a preview frame through the display. The instructions are configured to cause the electronic device to, upon receiving a frame capture input, identify user setting information. The instructions are configured to cause the electronic device to identify, as a capture frame, a frame including setting information matching user setting information among the at least one frame stored in the memory.

Description

Electronic device, method, and storage medium for reducing shutter lag in a camera

[0001] Embodiments of the present document relate to electronic devices, methods and storage media, for example, to electronic devices, methods and storage media for reducing shutter delay of a camera.

[0002] Camera applications may include a customization mode that allows users to configure settings. For example, in customization mode, the camera's ISO, shutter speed, exposure value, focus value, and / or white balance values ​​can be set by the user. Customization mode can enhance the user's shooting experience by allowing users to directly configure camera settings.

[0003] The above information may be provided solely as background information to aid in understanding the present disclosure. None of the above-described matters are claimed as prior art related to the present disclosure or can be used in determining prior art.

[0004] An electronic device according to various embodiments of the present document may include a camera, a display, at least one processor, and a memory storing instructions executed by the at least one processor individually or collectively. The instructions stored in the memory may be configured to cause the electronic device to store at least one frame detected by the camera and setting information of the at least one frame in the memory. The instructions may be configured to cause the electronic device to perform image processing on the at least one frame and display a preview frame through the display. The instructions may be configured to cause the electronic device to check user setting information when a frame capture input is received. The instructions may be configured to cause the electronic device to identify, as a capture frame, a frame including setting information matching the user setting information among the at least one frame stored in the memory.

[0005] A method for reducing shutter delay of a camera according to various embodiments of the present document may include storing at least one frame detected by the camera and setting information of the at least one frame. The method may include processing the at least one frame as an image and displaying it as a preview frame. The method may include checking user setting information when a frame capture input is received. The method may include identifying a frame among the at least one frame that includes setting information matching the user setting information as a capture frame.

[0006] A non-transitory computer-readable storage medium having recorded thereon a program for performing a method for reducing shutter delay of a camera according to various embodiments of the present document may perform an operation of storing at least one frame detected by the camera and setting information of the at least one frame. The storage medium may perform an operation of processing the at least one frame as an image and displaying it as a preview frame. When a frame capture input is received, the storage medium may perform an operation of checking user setting information. The storage medium may perform an operation of identifying a frame including setting information matching the user setting information among the at least one frame as a capture frame.

[0007] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0008] FIG. 2 is a block diagram illustrating the configuration of an electronic device according to various embodiments.

[0009] FIG. 3 is a drawing illustrating a general shooting method and a shutter delay improvement method according to various embodiments.

[0010] FIG. 4 is a drawing illustrating an operation of outputting a notification sound in a user setting mode according to various embodiments.

[0011] FIG. 5 is a diagram illustrating an operation for improving shutter delay in a user setting mode according to various embodiments.

[0012] Figure 6 is a flowchart illustrating an operation for checking request settings according to various embodiments.

[0013] FIG. 7 is a flowchart illustrating a method for reducing shutter delay of a camera according to various embodiments.

[0014] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.

[0015] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments.

[0016] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include 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), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0017] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor)) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0018] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0019] The memory (130) can store various data used by at least one component (e.g., the processor (120) or the sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., the program (140)) and input data or output data for commands related thereto. The memory (130) can include a volatile memory (132) or a non-volatile memory (134). The non-volatile memory (134) can include at least one internal memory (136) and an external memory (138).

[0020] 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).

[0021] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0022] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0023] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0024] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0025] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0026] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, 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.

[0027] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0028] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0029] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0030] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0031] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0032] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., 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) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0033] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0034] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., 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), may be selected from the plurality of antennas by, for example, the communication module (190). 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. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0035] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0036] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0037] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0038] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0039] FIG. 2 is a block diagram illustrating the configuration of an electronic device according to various embodiments.

[0040] Referring to FIG. 2, the electronic device (200) may include a camera (210), a display (220), a memory (230), and a processor (240).

[0041] According to one embodiment, the camera (210) (e.g., the camera module (180) of FIG. 1) may acquire data detected by the surrounding environment. The camera (210) may acquire data based on setting values ​​of setting items. For example, the setting items may include ISO, shutter speed, exposure, focus, and / or white balance. ISO may be an item that sets the sensitivity of the camera to light. Shutter speed may be an item that sets the length of time for the shutter of the camera to open and close. Exposure may be an item that sets the brightness (exposure value) of the photo. Focus may be an item that sets the distance to the subject. White balance may be an item that sets an appropriate color temperature according to natural light and / or artificial light. For example, the values ​​of all setting items may be automatically set based on the surrounding illuminance and / or objects. As an example, the values ​​of some setting items may be manually set by the user, and the values ​​of the remaining setting items may be automatically set based on the values ​​of the manually set setting items, the surrounding illuminance, and / or the objects. As an example, the values ​​of all (or almost all) configuration items can be manually set by the user. A mode in which the values ​​of all (or almost all) configuration items are manually set by the user can be referred to as a user-configured mode (e.g., a customizing mode).

[0042] According to one embodiment, the display (220) (e.g., the display module (160) of FIG. 1) can output data processed by the processor (240) as an image. For example, the display (220) can display a preview frame (or preview image) in which data sensed from the surrounding environment is processed in real time, and can display a capture frame (or capture image) generated by a shooting operation.

[0043] According to one embodiment, the memory (230) (e.g., the memory (130) of FIG. 1) may store data, algorithms, programs, commands, etc. that perform functions of the electronic device (200) (e.g., the electronic device (101) of FIG. 1). The commands, etc. stored in the memory (230) may be loaded into the processor (240) and executed by the processor (240). For example, the memory (230) may store frames (or images) detected by the camera, setting information of the frames, and time information related to the frames. For example, the frames may include data detected from the surrounding environment. The frames may be sequentially acquired in time order by the camera (210). The setting information of the frames may include values ​​of setting items of the camera. The time information related to the frames may include time information related to acquisition of the frames.

[0044] According to one embodiment, a processor (240) (e.g., processor (120) of FIG. 1) may control each component of the electronic device (200). The electronic device (200) may include one or more processors (240). For example, the processor (240) may correspond to a plurality of processors that collectively perform a plurality of functions by dividing them among the processors.

[0045] For example, the processor (240) may store frames detected by the camera (210) and frame setting information in the memory (230). As an example, when the processor (240) stores a detected frame, it may store time information related to the frame in the memory (230). There may be one or more frames. The time information related to the frame may include the time at which the frame was stored.

[0046] For example, when an operation command of the camera (210) is received, the processor (240) can control the camera (210) to acquire data of the surrounding environment. As an example, from a software perspective, a hardware abstraction layer (HAL) can receive a preview request from the App / Framework layer and request raw data from the camera (210). The HAL can store the raw data acquired from the camera (210) in the memory (230). For example, the raw data can be stored in an image buffer (e.g., a zero shutter lag (ZSL) queue). The raw data can be subjected to image processing corresponding to the preview request and transmitted to the App / Framework layer. The data transmitted to the App / Framework layer can be displayed as a preview image (or frame) through the display (220). The HAL can receive a preview request for each frame. The HAL can perform the above-described process for each frame and store the raw data from the previous frame. For example, when receiving a preview request, the HAL can check the frame's configuration information. In one embodiment, if the camera (210) is in user-configured mode, the frame's configuration information may include user-configured information.

[0047] For example, when an image capture (or frame capture) command is received, the processor (240) can generate a capture image. When the mode of the camera (210) is a user setting mode and a frame capture input is received, the processor (240) can check the user setting information. The processor (240) can select one frame that includes time information closest to the time information related to the preview frame displayed when the frame capture input is received among at least one frame stored in the memory (230). The time information related to the preview frame can include the time when the raw data of the preview frame is stored. As an example, the processor (240) can generate a preview request at 11:37:54.3 and acquire data from the camera (210). The processor (240) can store the acquired data as a first frame, and store the time (e.g., 11:37:54.8) as time information related to the frame when storing it. The processor (240) may image-process the first frame and display it as a preview frame on the display (220). The time at which the first frame is displayed as a preview frame may be 11:37:54.8 seconds, and the processor (240) may receive a capture input from the user when the first frame is displayed. The processor (240) may check time information related to the preview frame. As an example, the processor (240) may check the time information related to the first frame, which is a preview frame, as 11:37:54.8 seconds. The processor (240) may select the first frame.

[0048] According to one embodiment, the processor (240) may compare the configuration information of the selected frame with the user configuration information. The processor (240) may identify a frame that matches the user configuration information among the configuration information of the selected frame as a capture frame.

[0049] For example, if the time information related to the first frame, which is a preview frame, is 11:37:54.8 seconds, the processor (240) may select a frame that includes time information related to the preview frame among the frames stored in the memory (230). The frame that is closest to the time information related to the preview frame among the frames stored in the memory (230) may be the first frame. The processor (240) may compare the setting information of the first frame stored in the memory (230) with the user setting information. If the setting information of the first frame stored in the memory (230) matches the user setting information, the processor (240) may identify the first frame stored in the memory (230) as a capture frame.

[0050] For example, the configuration information of the first frame and the user configuration information may not match. The memory (230) may store a plurality of consecutive frames while the camera (210) is operating. For example, the memory (230) may sequentially store the first frame, the second frame, the third frame, and the nth frame according to a preview request. If the configuration information and the user configuration information of the first frame do not match, the processor (240) may compare the configuration information of the second frame with the user configuration information. If the configuration information and the user configuration information of the second frame stored in the memory (230) match, the processor (240) may identify the second frame stored in the memory (230) as a capture frame.

[0051] For example, if the setting information and the user setting information of the second frame do not match, the processor (240) can compare the setting information and the user setting information of the third frame. Since multiple frames are sequentially stored in the memory (230), when the processor (240) compares the setting information and the user setting information of the third frame, the third frame may not be stored in the memory (230). If the third frame is not stored in the memory (230), the processor (240) can compare the setting information and the user setting information of the third frame after the third frame is stored in the memory (230). If the setting information and the user setting information of the third frame stored in the memory (230) match, the processor (240) can identify the third frame stored in the memory (230) as a capture frame.

[0052] According to one embodiment, the processor (240) may image process the identified capture frame to generate a capture image. For example, from a software perspective, a hardware abstraction layer (HAL) may receive a capture request from the App / Framework layer and request raw data from the camera (210). The HAL may store the raw data acquired from the camera (210) in the memory (230). For example, the raw data may be stored in an image buffer. The raw data may be image-processed in response to the capture request and transmitted to the App / Framework layer. The data transmitted to the App / Framework layer may be displayed as a capture image (or frame) through the display (220).

[0053] FIG. 3 is a drawing illustrating a general shooting method and a shutter delay improvement method according to various embodiments.

[0054] Referring to FIG. 3, according to one embodiment, a plurality of frames stored in a memory (230) and a plurality of frames to be previewed are illustrated. For example, when a camera (210) is operated, the electronic device (200) may generate a preview request and obtain one frame from the camera (210). The electronic device (200) may store the obtained one frame in the memory (230). The electronic device (200) may image-process the obtained one frame and output it as a preview frame. The electronic device (200) may image-process the obtained frame and output it as a preview frame, while generating a preview request that requests a next frame. As an example, the electronic device (200) may generate a first preview request and obtain a first frame from the camera (210). The electronic device (200) may store the first frame and perform image processing. The electronic device (200) can sequentially generate a second preview request and a third preview request, and acquire a second frame and a third frame from the camera (210) in response to the preview request from the camera (210). The electronic device (200) can sequentially store the second frame and the third frame and perform image processing.

[0055] When the image processing of the first frame is completed, the electronic device (200) can output the first frame as a preview frame. When the image processing of the second frame and the third frame are sequentially completed, the electronic device (200) can sequentially output the second frame and the third frame as preview frames. When the electronic device (200) receives a capture command from a user, it can generate a capture request instead of a preview request. The frame at the time the request is generated and the preview frame may be different.

[0056] For example, as illustrated in FIG. 3, when the electronic device (200) outputs the third frame (11) as a preview frame, it may receive a capture command from the user. When outputting the third frame (11) as a preview frame, the frame in which the request is generated may be the eighth frame (12). According to one embodiment, in the Non-ZSL shooting method, the electronic device (200) may image-process the eighth frame (12), which is the frame in which the capture request is generated, and generate it as a capture frame. In this case, the user inputs a capture command by looking at the previewed third frame (11), but since the eighth frame (12) acquired by the capture request is captured, a shutter delay may occur. When the camera mode is an automatic setting mode, the electronic device (200) may generate a capture frame in the ZSL method. In the ZSL shooting method, the electronic device (200) may generate a capture frame as a frame corresponding to the preview frame. For example, in the ZSL method, the electronic device (200) can image process the third frame (11) and generate it as a capture frame since the third frame (11) is output as a preview frame. According to one embodiment, if the camera mode is a user setting mode, the electronic device (200) cannot generate a capture frame in the ZSL method since the user setting value cannot be guaranteed.

[0057] The electronic device (200) of this document can generate capture frames by applying a shutter delay improvement method in a user setting mode. As an example, the electronic device (200) to which the shutter delay improvement method is applied in a user setting mode can store not only frames acquired from the camera (210), but also setting information of the frames and time information related to the frames. As an example, the electronic device (200) can store setting information and time information of each of the first frame, the second frame, the third frame, ..., and the eighth frame. When the electronic device (200) outputs the third frame (11) as a preview frame, if it receives a capture command from the user, it can check the time information of the third frame (11) and select a frame including time information that is closest to the time information of the third frame (11). The electronic device (200) can select at least one frame that is consecutive to the selected frame. For example, the electronic device (200) can select one or more frames whose setting information is in the user setting mode. As an example, the frame including the time information closest to the third frame (11) being previewed may be the third frame (11) stored in the memory (230). According to one embodiment, the electronic device (200) may select the fourth frame, the fifth frame, and the sixth frame, which are sequentially consecutive with the third frame (11) and include information of the user setting mode. The electronic device (200) may compare the setting information of the frames starting from the selected third frame with the user setting information when the capture command is received. The electronic device (200) may compare the setting information of the frames and the user setting information until the setting information of the frames and the user setting information match within at least one selected frame. As an example, if the setting information of the fourth frame stored in the memory (230) and the user setting information match, the electronic device (200) may identify the fourth frame as a capture frame.The electronic device (200) can image process the fourth frame and generate a capture image.

[0058] The electronic device (200) of this document processes images of frames having time information close to the time information of the frame being previewed when a capture command is received, and generates a capture image by including a frame having the same setting value as the user's setting value among the frames having time information, so that a time gain of about 0 to 5 frames can be obtained compared to a general shooting method. In other words, the electronic device (200) of this document can obtain the effect of reducing shutter delay.

[0059] The effects of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of this document.

[0060] FIG. 4 is a drawing illustrating an operation of outputting a notification sound in a user setting mode according to various embodiments.

[0061] Referring to FIG. 4, a plurality of frames stored in the memory (230) and a plurality of frames to be previewed are illustrated. For example, when an identified capture frame is displayed as a preview frame through the display (220), the processor (240) may output a notification sound (or, a shooting sound, a shutter sound) through a speaker (e.g., an audio output module (155) of FIG. 1). The notification sound may be a signal to the user that shooting is complete. For example, the HAL may provide the notification sound to the user at the time when the identified capture frame is previewed.

[0062] For example, as illustrated in FIG. 4, when the electronic device (200) outputs the third frame (21) as a preview frame, the electronic device (200) may receive a capture command from the user (e.g., press the capture button). The electronic device (200) may check the time information of the third frame (21) to be previewed, and select a frame including time information closest to the time information of the third frame (21) and a continuous frame. As an example, the frame including time information closest to the third frame (21) to be previewed may be the third frame (22) stored in the memory (230). The electronic device (200) may select the third frame (22) stored in the memory (230) and the fourth frame (23), the fifth frame (24), and the sixth frame (25) that are continuous with the third frame (22) and include information of a user-set mode. The electronic device (200) can compare the frame setting information from the selected third frame (22) with the user setting information when the capture command is received. The electronic device (200) can compare the frame setting information and the user setting information until the frame setting information and the user setting information match within at least one selected frame. For example, if the setting information and the user setting information of the sixth frame (25) stored in the memory (230) match, the electronic device (200) can identify the sixth frame (25) as a capture frame. The electronic device (200) can image-process the sixth frame (25) and generate a capture image. In addition, when the sixth frame (27) being previewed is displayed, the electronic device (200) can provide a notification sound (e.g., here the shutter sound).

[0063] FIG. 5 is a diagram illustrating an operation for improving shutter delay in a user setting mode according to various embodiments.

[0064] Referring to FIG. 5, when a sensor (e.g., a camera module (180) of FIG. 1 or a camera (210) of FIG. 2) operates, the HAL may receive a preview request from the App / Framework layer (510). For example, the HAL may receive a preview request for each frame. Upon receiving the preview request, the HAL may request a raw image from the sensor (520). For example, the HAL may obtain a raw image corresponding to each frame from the sensor according to the preview request. The HAL may perform image processing on the raw image obtained from the sensor (530). The HAL may store the image-processed raw image in a zero shutter lag queue (ZSL) (e.g., a memory (130) of FIG. 1 or a memory (230) of FIG. 2) (540). For example, the HAL may store the image-processed raw image in the ZSL queue as a sequential frame. The HAL can store frame configuration information and time information along with the image. The HAL can transmit the processed raw image to the App / Framework layer (550). The image transmitted to the App / Framework layer can be output as a preview frame. The preview frame can be delayed from the frame at the time the request is requested. For example, when a request for the 12th frame is requested, the 7th frame can be output as a preview frame.

[0065] For example, when the 7th frame is output as a preview frame, the electronic device (200) may receive a capture command from the user. In other words, the electronic device (200) may receive a capture command from the user at the time when a request for the 12th frame is requested. The HAL may receive a capture request from the App / Framework layer (560). The HAL may perform a request setting confirmation operation (570). For example, the HAL may check the time information of the 7th frame being previewed, and select a frame including time information closest to the time information of the 7th frame and a consecutive frame. As an example, the frame including time information closest to the 7th frame being previewed may be the 7th frame stored in the ZSL queue. The HAL may select the 7th frame stored in the ZSL queue together with the 8th to 12th frames that are sequentially stored (or scheduled to be stored) after the 7th frame. As an example, the 8th to 12th frames may be frames including user setting information. The HAL can compare the configuration information of the frame from the 7th frame onwards with the user configuration information when the capture command is received. The HAL can compare the configuration information of the frame with the user configuration information until the configuration information of the frame and the user configuration information match within at least one selected frame. For example, the HAL can compare the configuration information from the 7th frame to the 12th frame until the configuration information of the frame and the user configuration information match. For example, if the configuration information and the user configuration information of the 7th frame match, the HAL can identify the 7th frame as a capture frame, perform image processing, and provide the image-processed 7th frame to the user as a capture result (590). For example, the HAL can forward the image-processed 7th frame to the App / Framework layer.The seventh frame transmitted to the App / Framework layer can be displayed as a captured image (or frame) through the display (220). For example, the HAL can store the image-processed seventh frame in the ZSL queue.

[0066] Figure 6 is a flowchart illustrating an operation for checking request settings according to various embodiments.

[0067] In the following examples, the operations may be performed sequentially, but are not necessarily sequential. For example, the order of the operations may be changed, and at least two operations may be performed in parallel.

[0068] According to one embodiment, steps 605 to 650 may be understood to be performed in a processor (e.g., processor (120) of FIG. 2) of an electronic device (e.g., electronic device (101) of FIG. 2).

[0069] Referring to FIG. 6, the electronic device (200) may receive a capture request from the HAL (605). For example, the HAL may receive the capture request from the App / Framework layer. In one embodiment, the capture request may include information such as one or more setting values, time information, and requested image information at the time of receiving the capture input from the user.

[0070] The electronic device (200) can check user setting information (610). For example, if the camera mode is a user setting mode, the electronic device (200) can check user setting information.

[0071] The electronic device (200) can compare the time information when the capture button is pressed with the time information of the frame and select the n-th frame (615). The electronic device (200) can select a frame that includes time information (time stamp) closest to the time information related to the preview frame to be displayed among the frames stored in the ZSL queue. For example, the n-th frame can be a frame that includes time information closest to the time information related to the preview frame to be displayed. The electronic device (200) can select at least one frame that is consecutive to the selected frame. For example, the electronic device (200) can select at least one frame whose frame setting information is a user setting mode. For example, if the frames set to the user setting mode are the n-th frame, the n+1-th frame, the n+2-th frame, the n+3-th frame, and the n+4-th frame, the electronic device (200) can select the n-th frame, the n+1-th frame, the n+2-th frame, the n+3-th frame, and the n+4-th frame together with the n-th frame. According to one embodiment, the electronic device (200) may not know which frame is set to the user setting mode. The electronic device (200) may sequentially search for frames starting from the frame that includes time information related to the preview frame and the closest time information until the frame set to the user setting mode appears. In one embodiment, if the frame that includes time information related to the displayed preview frame and the closest time information is the n-2 frame, and the frames set to the user setting mode are the n-th frame, the n+1-th frame, the n+2-th frame, the n+3-th frame, and the n+4-th frame, the electronic device (200) may search for frames set to the user setting mode in the order of the n-2-th frame, the n-1-th frame, and the n-th frame, and select the n-th frame, the n+1-th frame, the n+2-th frame, the n+3-th frame, and the n+4-th frame.

[0072] The electronic device (200) can determine whether a selected frame exists in the queue (620) and whether the setting information matches (625). As described above, since the frame is image-processed, stored in the ZSL queue, and previewed, the previewed frame may be stored in the ZSL queue. However, subsequent frames may be being acquired from the camera (210) or may be in the process of image processing, and thus may not be stored in the ZSL queue. For example, the nth frame and the n+1th frame may be stored in the ZSL queue, and the n+2nd frame, the n+3rd frame, and the n+4th frame may not be stored in the ZSL queue. The electronic device (200) can determine whether a selected frame exists in the queue, and compare the setting information of the selected frame with the user setting information. The electronic device (200) can sequentially compare the setting information of the selected frames with the user setting information.

[0073] As an example, the electronic device (200) can compare the configuration information of the n-th frame with the user configuration information. If the configuration information of the n-th frame does not match with the user configuration information (625-NO), the electronic device (200) can select the next frame of the n-th frame (n=n+1) (630). As an example, the electronic device (200) can select the n+1-th frame. The electronic device (200) can determine whether the n+1-th frame exists in the ZSL queue (620). If the n+1-th frame exists in the ZSL queue (620-YES), the electronic device (200) can compare the configuration information of the n+1-th frame with the user configuration information. As an example, if the configuration information of the n+1-th frame does not match with the user configuration information (625-NO), the electronic device (200) can select the next frame of the n+1-th frame (n=n+1) (630). As an example, the electronic device (200) may select the n+2-th frame. The electronic device (200) may determine whether the n+2-th frame exists in the ZSL queue (620). If the n+2-th frame does not exist in the ZSL queue (620-NO), the electronic device (200) may wait until the n+2-th frame is stored in the ZSL queue. If the n+2-th frame exists in the ZSL queue (620-YES), the electronic device (200) may compare the configuration information of the n+2-th frame with the user configuration information. As an example, if the configuration information and the user configuration information of the n+2-th frame match (625-YES), the electronic device (200) may select the n+2-th frame as the capture frame buffer (or data) (635).

[0074] The electronic device (200) can output a notification sound when the n+2-th frame is previewed (640). The electronic device (200) can perform image processing on the selected buffer (645) and transmit the capture result (650). For example, the HAL can perform an image processing operation corresponding to the capture request on the selected buffer and transmit it to the App / Framework layer. The image-processed buffer can be displayed as a captured image (or frame) through the display (220) and stored in the memory (230).

[0075] FIG. 7 is a flowchart illustrating a method for reducing shutter delay of a camera according to various embodiments.

[0076] In the following examples, the operations may be performed sequentially, but are not necessarily sequential. For example, the order of the operations may be changed, and at least two operations may be performed in parallel.

[0077] According to one embodiment, steps 710 to 740 may be understood to be performed in a processor (e.g., processor (120) of FIG. 2) of an electronic device (e.g., electronic device (101) of FIG. 2).

[0078] Referring to FIG. 7, the electronic device (200) can store at least one frame detected by the camera (210) and setting information of at least one frame (710). The setting information of the frame can include values ​​of setting items of the camera.

[0079] The electronic device (200) can image process at least one frame and display it as a preview frame (720). When the electronic device (200) receives a frame capture input, it can check user setting information (730). For example, the user setting information may include ISO, shutter speed, exposure, focus, and / or white balance. In one embodiment, ISO may be information including the sensitivity of the camera to light. Shutter speed may be information including the length of time the camera shutter opens and closes. Exposure may be information including the brightness (exposure value) of the photo. Focus may be information including the distance to the subject. White balance may be information including an appropriate color temperature depending on natural light and / or artificial light.

[0080] The electronic device (200) can identify a frame that includes setting information matching user setting information among at least one frame stored in the memory (230) as a capture frame (740). For example, when storing a frame, the electronic device (200) can store time information related to the frame in the memory (230). The time information related to the frame can include time information related to the storage of the frame. For example, the electronic device (200) can select a frame that includes time information closest to the time information related to the preview frame among at least one frame stored in the memory (230). The electronic device (200) can compare the setting information of the selected frame with the user setting information. For example, the electronic device (200) can select at least one frame that is continuous with the selected frame.

[0081] For example, the selected stored at least one frame may include a first frame and a second frame that is a frame following the first frame. When the first frame is selected, the electronic device (200) may compare the configuration information of the first frame with the user configuration information. If the configuration information of the first frame is different from the user configuration information, the electronic device (200) may compare the configuration information of the second frame with the user configuration information. If the configuration information of the second frame matches the user configuration information, the electronic device (200) may identify the second frame as a capture frame. For example, if the second frame is not stored in the memory (230), the electronic device (200) may compare the configuration information of the second frame with the user configuration information after the second frame is stored.

[0082] For example, the electronic device (200) may output a notification sound when an identified capture frame is displayed as a preview frame. The electronic device (200) may image-process a frame selected as a capture frame. The electronic device (200) may display the image-processed frame as a capture image (or frame) through the display (220) or store it in the memory (230).

[0083] For example, the electronic device (200) may include a plurality of cameras (210) (or camera sensors). Each of the plurality of cameras (210) may have different angles of view and sensor characteristics, and may have individually set configuration information. According to one embodiment, the electronic device (200) may store a capture frame for each of the plurality of cameras (210) in an image buffer (e.g., ZLS queue) for each frame. The electronic device (200) may select one capture frame corresponding to a user setting through the above-described method. The electronic device (200) may generate a 3D image based on capture frames having the same time information as the selected capture frame among the capture frames of the plurality of cameras (210).

[0084] For example, the electronic device (200) can check the setting values ​​of frames stored in the image buffer for each frame through the above-described method. If consecutive frames contain the same value set by the user, the electronic device (200) can provide the user with a notification that motion photo shooting is possible. When the electronic device (200) receives a motion photo shooting input from the user, the electronic device (200) can generate a motion photo with consecutive frames having the same user-set value.

[0085] For example, the electronic device (200) can use an artificial intelligence model to post-process frames stored in an image buffer according to user settings. In this case, the electronic device (200) can omit an operation of comparing multiple frames, thereby further improving the delay in the shooting time. According to one example, the electronic device (200) can include a mark indicating a frame modified by artificial intelligence in a frame generated using the artificial intelligence model. As an example, the electronic device (200) can include a camera (210), a display (220), at least one processor (240), and a memory (230) that stores commands to be executed individually or collectively by the at least one processor (240). The commands stored in the memory (230) can be configured to cause the electronic device (200) to store at least one frame detected by the camera (210) and setting information of the at least one frame in the memory (230). The above command may be configured to cause the electronic device (200) to image-process the at least one frame and display a preview frame through the display (220). The above command may be configured to cause the electronic device (200) to check user setting information when a frame capture input is received. The above command may be configured to cause the electronic device (200) to identify a frame including setting information matching the user setting information among the at least one frame stored in the memory (230) as a capture frame.

[0086] As an example, the command may be configured to cause the electronic device (200) to store time information related to the at least one frame in the memory (230). The command may be configured to cause the electronic device (200) to select a first frame among the at least one frame stored in the memory (230), the first frame including time information closest to the time information related to the preview frame. The command may be configured to cause the electronic device (200) to compare the setting information of the first frame with the user setting information.

[0087] As an example, the command may be configured to cause the electronic device (200) to compare the configuration information of a second frame, which is a frame following the first frame, with the user configuration information if the configuration information of the first frame is different from the user configuration information. The command may be configured to cause the electronic device (200) to identify the second frame as the capture frame if the configuration information of the second frame matches the user configuration information.

[0088] As an example, the command may be configured to cause the electronic device (200) to compare the configuration information of the second frame with the user configuration information after the second frame is stored in the memory (230), if the second frame is not stored in the memory (230).

[0089] As an example, the electronic device (200) may further include a speaker. The command may be configured to cause the electronic device (200) to output a notification sound through the speaker when the identified capture frame is displayed as the preview frame through the display (220).

[0090] As an example, the user settings information may include at least one of ISO, shutter speed, exposure value, focus value, or white balance.

[0091] As an example, a method for reducing shutter delay of a camera (210) may include storing at least one frame detected by the camera (210) and setting information of the at least one frame. The method may include processing the at least one frame as an image and displaying it as a preview frame. The method may include checking user setting information when a frame capture input is received. The method may include identifying a frame among the at least one frame that includes setting information matching the user setting information as a capture frame.

[0092] As an example, the method may further include storing time information associated with the at least one frame. The method may further include selecting a first frame among the stored at least one frame, which includes time information closest to the time information associated with the preview frame. The method may further include comparing the configuration information of the first frame with the user configuration information.

[0093] As an example, the method may further include an operation of comparing the user setting information with the setting information of a second frame, which is a frame following the first frame, if the setting information of the first frame is different from the user setting information. The operation of identifying the second frame as the capture frame may identify the second frame as the capture frame if the setting information of the second frame matches the user setting information.

[0094] As an example, the operation of comparing the setting information of the second frame with the user setting information may be such that, if the second frame is not stored in the memory, the setting information of the second frame and the user setting information may be compared after the second frame is stored.

[0095] As an example, the method may further include an action of outputting a notification sound when the identified capture frame is displayed as the preview frame.

[0096] As an example, the user settings information may include at least one of ISO, shutter speed, exposure value, focus value, or white balance.

[0097] As an example, a non-transitory computer-readable storage medium having recorded thereon a program for performing a method for reducing a shutter delay of a camera (210) may perform an operation of storing at least one frame detected by the camera (210) and setting information of the at least one frame. The storage medium may perform an operation of processing the at least one frame as an image and displaying it as a preview frame. When a frame capture input is received, the storage medium may perform an operation of checking user setting information. The storage medium may perform an operation of identifying a frame including setting information matching the user setting information among the at least one frame as a capture frame.

[0098] As an example, the storage medium may perform an operation of storing time information related to the at least one frame. The storage medium may select a first frame among the stored at least one frame, which includes time information closest to the time information related to the preview frame. The storage medium may perform an operation of comparing the setting information of the first frame with the user setting information.

[0099] As an example, if the setting information of the first frame is different from the user setting information, the storage medium may perform an operation of comparing the setting information of the second frame, which is the frame following the first frame, with the user setting information. The operation of identifying the second frame as the capture frame may identify the second frame as the capture frame if the setting information of the second frame matches the user setting information.

[0100] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0101] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0102] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0103] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0104] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and arranged in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0105] The effects of this document are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the above description.

Claims

1. In electronic devices, camera; display; at least one processor; and A memory for storing instructions to be executed individually or collectively by at least one processor; The instructions stored in the above memory cause the electronic device to: Store at least one frame detected by the camera and setting information of the at least one frame in the memory, Processing at least one frame of the above image to display a preview frame through the display, When receiving a frame capture input, check the user settings information, An electronic device configured to identify a frame containing setting information matching the user setting information among the at least one frame stored in the memory as a capture frame.

2. In paragraph 1, The instructions stored in the above memory cause the electronic device to: storing time information related to at least one frame in the memory, Selecting a first frame that includes time information related to the preview frame and time information closest to the preview frame among at least one frame stored in the memory, An electronic device configured to compare the setting information of the first frame with the user setting information.

3. In paragraph 2, The instructions stored in the above memory cause the electronic device to: If the setting information of the first frame is different from the user setting information, the setting information of the second frame, which is the next frame of the first frame, is compared with the user setting information, An electronic device configured to identify the second frame as the capture frame if the setting information of the second frame matches the user setting information.

4. In paragraph 3, The instructions stored in the above memory cause the electronic device to: An electronic device configured to compare the setting information of the second frame with the user setting information after the second frame is stored in the memory, if the second frame is not stored in the memory.

5. In paragraph 1, including speakers; The instructions stored in the above memory cause the electronic device to: An electronic device configured to output a notification sound through the speaker when the identified capture frame is displayed as the preview frame through the display.

6. In paragraph 1, User settings information is, An electronic device that includes at least one of ISO, shutter speed, exposure value, focus value, or white balance.

7. In a method to reduce the shutter delay of a camera, An operation of storing at least one frame detected by the camera and setting information of the at least one frame; An operation of processing at least one frame and displaying it as a preview frame; When receiving a frame capture input, an action is taken to check the user settings information; and A method comprising: identifying a frame including setting information matching the user setting information among at least one frame as a capture frame.

8. In paragraph 7, An operation of storing time information associated with at least one frame; An operation of selecting a first frame that includes time information related to the preview frame and time information closest to the preview frame among at least one of the stored frames; and A method further comprising: an operation of comparing the setting information of the first frame with the user setting information.

9. In paragraph 8, If the setting information of the first frame is different from the user setting information, the operation of comparing the setting information of the second frame, which is the next frame of the first frame, with the user setting information is further included. The action identified by the above capture frame is, A method for identifying the second frame as the capture frame if the setting information of the second frame matches the user setting information.

10. In paragraph 9, The operation of comparing the setting information of the second frame and the user setting information is as follows: A method of comparing the setting information of the second frame and the user setting information after the second frame is saved, if the second frame is not saved.

11. In paragraph 7, A method further comprising: an operation of outputting a notification sound when the identified capture frame is displayed as the preview frame.

12. In paragraph 7, User settings information is, A method comprising at least one of ISO, shutter speed, exposure value, focus value, or white balance.

13. A non-transitory computer-readable storage medium having recorded thereon a program for performing a method of reducing shutter delay of a camera, An operation of storing at least one frame detected by the camera and setting information of the at least one frame; An operation of processing at least one frame and displaying it as a preview frame; When receiving a frame capture input, an action is taken to check the user settings information; and A non-transitory computer-readable storage medium having recorded thereon a program for performing a method, comprising: identifying a frame including setting information matching the user setting information among at least one frame as a capture frame; 14. In paragraph 13, An operation of storing time information associated with at least one frame; An operation of selecting a first frame that includes time information related to the preview frame and time information closest to the preview frame among at least one of the stored frames; and A non-transitory computer-readable storage medium having recorded thereon a program for performing a method further comprising: comparing the setting information of the first frame with the user setting information.

15. In paragraph 14, If the setting information of the first frame is different from the user setting information, the operation of comparing the setting information of the second frame, which is the next frame of the first frame, with the user setting information is further included. The action identified by the above capture frame is, A non-transitory computer-readable storage medium having recorded thereon a program for performing a method of identifying the second frame as the capture frame if the setting information of the second frame matches the user setting information.

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