47 results about "Shutter speed" patented technology

The invention discloses an internal combustion engine in-cylinder transient self-adaptive exposure control method based on FPGA acceleration, and belongs to the technical field of internal combustion engine endoscopic visualization. In order to solve the technical problem of image overexposure or underexposure caused by violent illumination change in the combustion process in an internal combustion engine cylinder, a real-time exposure detection unit is fused with a camera built-in sensor and an endoscope added sensor to monitor light intensity data; the adaptive exposure control unit accelerated by the FPGA adopts adaptive PID control and fuzzy logic control to generate a parameter adjustment direction, the adaptive PID dynamically adjusts gain based on a machine learning model, and the fuzzy logic outputs a decision according to a fuzzy rule base of brightness, light intensity and errors; the parameter adjusting unit adjusts the aperture size, the shutter speed and the light sensitivity in a linkage mode according to the target and actual gray scale difference value, and millisecond-level multi-parameter exposure control is achieved. Overexposure of a highlight area and loss of details of a low-light area are effectively avoided, and stable and clear images are obtained in the whole combustion process.

The invention belongs to the technical field of bridge structure defects, and particularly discloses an underwater bridge structure defect identification method based on machine vision, and the method comprises the steps: firstly, employing a water surface monitoring camera to detect water surface moving objects around a pier, and carrying out the recognition of the underwater bridge structure defects based on the types, distribution density and motion trails of the objects; constructing a static distribution interference factor and a dynamic motion interference factor, and performing weighted fusion to generate a water body detection interference coefficient. Meanwhile, the water turbidity and the real-time flow velocity are obtained by means of an underwater sensor, and the light supplementing distance, the red light proportion and the shutter speed are dynamically adjusted in combination with the water detection interference coefficient. Then, the ROV is controlled to descend with the axis of the pier as the spiral center, visible light and ray transmission images are synchronously collected according to the adjusted parameters, a panoramic image is formed through fusion splicing, finally, defect danger indexes are output through image recognition and fed back, efficient detection and accurate evaluation of the state of the pier are achieved, and reliability and effectiveness of defect recognition are enhanced.

An image capturing apparatus capable of reducing exposure variation in opposite end areas of an image when photographing is performed with flash light emission while shortening a flash synchronization time. A system controller determines a shutter speed for flash light emission photographing. The system controller selectively executes first control for controlling a traveling speed of a front curtain of a shutter and a traveling speed of a rear curtain of the shutter to the same speed, and second control for controlling the traveling speed of the front curtain to be higher than the traveling speed of the rear curtain. Before flash light emission photographing is performed, the system controller determines which of the first control and the second control is to be adopted according to the shutter speed.

An electronic device including a camera and an operation method of the electronic device are provided. The electronic device includes display circuitry, a camera disposed on a rear surface of the display circuitry, a memory, and at least one processor electrically connected to the display circuitry, the camera, and the memory and being configured to identify camera driving information set for the camera, identify a shutter speed included in the set camera driving information, change set display driving information such that a time of a non-emission interval of the duty cycle of the display circuitry is greater than the shutter speed, and based on the changed display driving information, control a driving of the camera.

The application discloses a light-weight tunnel apparent disease intelligent detection device and method capable of conveniently switching a carrying platform. Through highly integrated light-weight, convenient and modular design, the application can be conveniently switched on different carrying platforms to meet the mobile detection requirements of different types of tunnels. The laser light source is combined with the linear array camera to avoid the defects of the traditional LED linear array light source, such as serious scattering at a long distance, the need for a large power to meet the requirements, the improvement of the effective light source efficiency, the reduction of the number and power of the light source equipment, the reduction of power consumption, and the guarantee of meeting the equipment use requirements with a small UPS power supply. The laser light supplementing and condensing effect is good, and the camera can shoot at a lower shutter speed, which can not only reduce the trailing effect caused by shooting in a moving state and improve the definition, but also enable the camera to adopt a higher shooting line frequency and improve the overall moving speed of the equipment.

The present invention provides an imaging control device that can suppress the occurrence of uneven lighting by setting an appropriate shutter speed. [Solution] The imaging control device 101, which controls the operation of the imaging device 100, determines the upper limit of the configurable shutter speed in the imaging device 100 based on information regarding the flat emission frequency of the light-emitting device 300.

An electronic device, a method and a computer program product for controlling image capturing via a first camera to capture images for use in a facial recognition process. The method includes capturing, via a first camera, a first image. The method includes determining if the first image contains a face. In response to determining the first image contains the face, the method includes identifying a skin tone frequency associated with the face. The method includes determining if the skin tone frequency is less than a skin tone frequency threshold. In response to determining the skin tone frequency is less than the skin tone frequency threshold, the method includes decreasing a first shutter speed of the first camera to a second shutter speed. The method includes capturing a second image, via the first camera using the second shutter speed. The method includes performing facial recognition based authentication using the second image.

The invention relates accessory device for photography using a smartphone (11), formed by a monobloc grip (1) comprising an electronic viewfinder (3), a main printed circuit board (12), a proximity sensor (15) and physical control elements (5-8) connected to a microcontroller (14). The device communicates with the phone (11) by means of a physical connection interface (17), eliminating the need for wireless links and guaranteeing low latency. A proprietary application (18) installed on the phone manages the automatic switching of the image between the screen and the viewfinder (3), as well as manual control of camera parameters, such as ISO, exposure, shutter speed or white balance, also allowing the execution of programmable combinations and the updating of firmware. The grip includes a hollow attachment handle (2) and means for fastening external lenses (10) by means of a metal adapter (9).

This document describes systems and techniques for object-based high-dynamic-range image capturing. In aspects, an image-capturing device can adjust an electronic shutter speed for one or more units of pixels of an image sensor based on luminous level statistical information of detected objects in a captured frame. In this way, the one or more units of pixels configured with modified electronic shutter speeds can capture incident light of a scene in a successive frame with adapted exposure for each object.

The present disclosure relates to an imaging control method, an imaging control device, and a program that make it possible to prevent imaging failures. An imaging control method according to the present disclosure includes: acquiring the movement speed of a moving body; acquiring the separation between a subject in a captured image to be captured by a camera mounted on the moving body, and the moving body; and calculating the shutter speed of the camera on the basis of the movement speed and the separation. The present disclosure can be applied to integrated circuits such as SoCs that control imaging in drones.

The article to which the design pertains in this design application (hereinafter referred to as the "Application") is an information display image (hereinafter referred to as the "Application Image") of a digital camera or other imaging device. The Application Image is displayed on a display mounted on the imaging device. Users of the imaging device can easily perform "panning" using the Application Image. "Panning" refers to a photography method in which a subject (moving object) is followed while taking a photograph at a shutter speed slower than normal, resulting in an image in which the subject is stationary while the background is blurred (an image in which the background is blurred and the subject is not blurred).

The present application relates to a kind of embedded PID adaptive light source control method and system based on 4K camera system AE value, the embedded PID adaptive light source control method based on 4K camera system AE value includes: receiving the current AE value and current shutter speed that 4K camera system exports in current exposure state;AE error is calculated according to current AE value, shutter speed compensation value is calculated according to current shutter speed;According to the AE error and shutter speed compensation value, calculate synthesis error;PID operation is carried out to synthesis error and anti-saturation processing is carried out when integral term is updated, and the control quantity after anti-saturation processing is obtained;According to the control quantity after anti-saturation processing, send light source brightness control signal.

To easily recognize the state of shutter speed adjustment by slider operation and reduce the labor required for adjustment.SOLUTION: An imaging device includes imaging means for capturing an image, detection means for detecting flicker from the image, display means for displaying information, setting means for setting an exposure time of the imaging means, calculation means for calculating an exposure time that suppresses flicker, and control means for causing the display means to display an operation object that displays at least a partial range of exposure times that can be set by the setting means, and when the exposure time calculated by the calculation means is within the display range of the operation object, the control means displays an indicator related to the calculated exposure time on the display means.SELECTED DRAWING: Figure 5

An electronic device includes: a display; a camera; and a processor is configured to execute the instructions to: based on receiving a request to photograph an image using the camera in a state in which the display is driven, set a priority of the display and the camera; identify a shutter speed included in camera driving information set in the camera and an off-duty time in a duty cycle set in the display; based on the priority of the camera being set higher than the priority of the display and the shutter speed being identified to be longer than the off-duty time, adjust at least one of display driving information of the display or the camera driving information of the camera; and control to photograph an image within an off-duty time that has changed based on the adjusted at least one of the display driving information or the camera driving information.

An electronic device, a method and a computer program product for controlling image capturing via a first camera to capture images for use in a facial recognition process. The method includes capturing, via a first camera, a first image. The method includes determining if the first image contains a face. In response to determining the first image contains the face, the method includes identifying a skin tone frequency associated with the face. The method includes determining if the skin tone frequency is less than a skin tone frequency threshold. In response to determining the skin tone frequency is less than the skin tone frequency threshold, the method includes decreasing a first shutter speed of the first camera to a second shutter speed. The method includes capturing a second image, via the first camera using the second shutter speed. The method includes performing facial recognition based authentication using the second image.

Systems, apparatus, and methods for stabilization and blending of exposures. So-called Electronic Image Stabilization (EIS) techniques use image manipulation software to compensate for camera motion. Unfortunately, existing EIS techniques cannot compensate for artifacts introduced by low shutter speed (e.g., blurs). Various embodiments of the present disclosure generate stabilized images from multiple exposures. In one exemplary embodiment, the stabilized exposures are blended using a linear sum of the color data for each pixel of the image. By stabilizing each exposure and linearly summing the light information, the camera shake can be removed, and the scene motion blur can be controlled. The stabilization and blending techniques enable a mathematical emulation of a selected shutter angle from many high-speed exposures.

An image pickup apparatus includes a strobe light emitting unit, a shutter configured to include a front curtain and a rear curtain that control exposure to an image pickup device, at least one processor, and a memory coupled to the processor storing instructions that, when executed by the processor, cause the processor to function as a setting unit that sets a light emission amount of the strobe light emitting unit. The setting unit sets, based on a traveling time of the front curtain, an upper limit value of the light emission amount when performing strobe synchronization photographing at a strobe synchronization maximum shutter speed.

A controlling method for an unmanned aerial vehicle (UAV) that includes an image device. The controlling method includes transmitting, by a remote controller when a dial of a dial structure of the remote controller is rotated, a first control signal for changing imaging device information of an imaging device of the UAV via a signal transmitting device of the remote controller. The imaging device information comprises at least one of an operating mode of the imaging device, a shutter speed of the imaging device, an aperture size of the imaging device, a light sensitivity of the imaging device, or a preview image of the imaging device. The controlling method further includes transmitting a second control signal for confirming imaging device information via the signal transmitting device by the controller when the dial is slid with a displacement.

The invention discloses a steam turbine blade full-coverage image acquisition method and device based on cooperative sliding rotation of multiple rows of industrial cameras, and belongs to the technical field of steam turbine blade detection. In order to solve the problems that manual detection is low in efficiency and poor in safety and the blade state cannot be monitored in real time, a stretching-in type sealing device is adopted to be welded to the interior of a steam turbine, a visual window is arranged, and multiple sets of industrial camera arrays are arranged in the device and fixed to a rotating shaft capable of horizontally sliding and rotating; determining a shooting area when the blade is static by pre-adjusting the focal length and angle of the camera; during operation, the surrounding type high-intensity light source and the air knife cleaning module are started to remove window water mist, and the multi-camera frame rate and the shutter speed are synchronously adjusted to collect blade images. Non-contact real-time high-definition image acquisition is realized, potential safety hazards are eliminated, crack identification precision is improved, and data support is provided for blade state analysis.

A display apparatus is disclosed. One or more processors are configured to, by executing the one or more instructions, identify shutter speed information and shutter angle information corresponding to an photographing apparatus, identify multiplication information of a frame based on the identified shutter speed information and the identified shutter angle information, identify a driving signal of a plurality of frames displayed in each of frame sections based on multiplication information of the frame, compensate for an application time and amplitude of voltage corresponding to a driving signal of the last frame based on each of the frame sections being longer than time that the plurality of frames is displayed, and control the display to provide the last frame based on the compensated driving signal.

The present invention provides an imaging device, a control method thereof, and a program that reduce the impact of vibrations caused by the focal-plane shutter on captured images and that can appropriately switch the shutter drive mode according to the subject's condition. [Solution] The system comprises a shooting optical system, an image sensor, a shutter speed selection means, a subject detection means, a shutter drive mode switching means for switching the shutter drive mode between a mechanical shutter mode and an electronic front curtain shutter mode, and a camera shake correction means. The shutter drive mode to be switched by the shutter drive mode switching means is determined according to the selection result of the shutter speed selection means and the detection result of the subject detection means in the shooting preparation state.

Described are systems and methods to reduce image flickering of a webcam of an information handling system. The webcam includes a photochromic lens that changes translucency based on UV radiation that is received. Image flickering can be caused when high UV radiation from a strong light source is observed. In passive method, the photochromic lens darkens as high UV radiation is received, and light received by the sensor of the webcam is reduced, which leads to lower shutter speed that reduces image flicker. In active methods, the image signal processor or an application is used to detect image flicker. UV emitters included in the webcam provide the UV radiation to cause the photochromic lens to darken.

A drive recorder mounted on a vehicle includes a camera and a processing device. When the processing device recognizes that a landmark appears in the image shot by the camera, the processing device performs a process of setting the shutter speed and shooting timing for taking a photo of the landmark based on the vehicle speed, and A process of shooting a landmark at the shutter speed and shooting timing is executed.

An image pickup apparatus includes an image sensor, and a processor that configured to detect a phase difference between a pair of detection signals generated by signals read out of at least a part of pixels, perform a first detection for detecting the phase difference in the first direction and a second detection for detecting the phase difference in the second direction, perform first processing for acquiring the information by the first detection or the second detection in a case where a shutter speed including a period during which the pair of detection signals are generated is longer than a predetermined time, perform second processing for acquiring the information by the first detection irrespective of the second detection in a case where the shutter speed is shorter than the predetermined time, and set the predetermined time to be longer as an F-number of the optical system is larger.

To provide a control method and imaging system capable of correcting, for example, shaking applied to an image sensor or imaging lens according to factors related to a moving body.SOLUTION: The imaging system includes a processor in an imaging system equipped with a moving object and an imaging apparatus. The processor acquires movement information regarding the position of the moving object and varies the shutter speed of the imaging apparatus according to the movement information.SELECTED DRAWING: Figure 10

In order to meet the future demand for high-quality yet economically viable creation of high dynamic range video programs, the inventor proposes a method in which a recording mode is set in a video camera (201) for setting the output pixel luminances in one or more corrected versions of output video image sequences, comprising: - an operator of the video camera moves to at least two positions (Pos1, Pos2) in a scene which have different illumination compared to one another and records at least one high dynamic range image (o_ImHDR) for each of these at least two positions in the scene;- a color composition director that analyzes, for each of the at least two positions, the at least one captured high dynamic range image to determine a region of maximum brightness and determines at least one aperture setting, a shutter speed, and an analog gain setting for the camera; - capturing a respective master shot (RW) for each of the at least two positions (Pos1, Pos2) using at least one of an aperture setting, a shutter speed setting, and an analog gain setting for the camera, and wherein the aperture setting, shutter speed setting, and analog gain setting are kept constant in at least the corresponding position for subsequent image capture;- Determining at least one respective first corrected image (ODR) for the respective master image, which consists of mapping digital numbers of the master image to nit values ​​of the first corrected image (ODR) by a respective luminance mapping function (FL_M), wherein the color composition director creates a form of such a luminance mapping function; and - Storing the respective luminance mapping functions (Fs1, Fs2) for the at least two positions or parameters that uniquely define these functions in respective memory locations (221, 222) of the camera;

An image pickup apparatus includes an image sensor, and a processor that configured to detect a phase difference between a pair of detection signals generated by signals read out of at least a part of pixels, perform a first detection for detecting the phase difference in the first direction and a second detection for detecting the phase difference in the second direction, perform first processing for acquiring the information by the first detection or the second detection in a case where a shutter speed including a period during which the pair of detection signals are generated is longer than a predetermined time, perform second processing for acquiring the information by the first detection irrespective of the second detection in a case where the shutter speed is shorter than the predetermined time, and set the predetermined time to be longer as an F-number of the optical system is larger.

There is provided a camera of which operability is good regardless of the brightness of the surrounding environment. The brightness of the surrounding environment is detected by a brightness detection unit provided in a camera. The contents of settings of the camera are displayed on a sub-display 18 in a situation in which the surrounding environment is bright. The contents of settings of the camera and an image representing the set state of a shutter speed dial 33 are displayed on the sub-display 18 in a case in which the surrounding environment is dark.

To provide an electronic device configured to acquire an image with reduced noise or blur which has been generated due to environment, using learning data.SOLUTION: An electronic device can acquire a first image from a first camera. The electronic device can acquire a second image from a second camera which is lower in shutter speed than the first camera. The electronic device can distinguish the first image from the second image, the first image and the second image having been captured at corresponding time points. The electronic device can set a first region of interest in an object of a designated type, in the first image. The electronic device can set a second region of interest which is located in the same position as the first region of interest in the second image. The electronic device can generate the first image with the first region of interest set therein and the second image with the second region of interest set therein, as learning data.SELECTED DRAWING: Figure 1

The application provides a camera supporting an allometric image migration compensation function and an allometric image migration compensation method. The camera comprises a camera lens, an electronic shutter, a shutter controller, a light measurement module, a lookup table module and a detector module supporting the allometric image migration compensation function. The lookup table module is used for looking up and comparing light value data and determining an electronic shutter exposure time, a shutter width and a shutter speed. The detector module supporting the allometric image migration compensation function is used for converting light signals collected by the camera lens into electrical signals and simultaneously performing electronic allometric image migration compensation according to the electronic shutter exposure time, the shutter width, the shutter speed and task parameters. The camera supporting the allometric image migration compensation function of the application overcomes the defect that the existing aerial camera does not have a compensation function. Moreover, the camera supporting the allometric image migration compensation function of the application can realize aerial allometric image migration compensation without additionally increasing system hardware devices and can reduce the quality, volume, power consumption and cost of an imaging system.