17 results about "Rolling shutter" patented technology

An image processing apparatus according to the present technology includes: a distortion addition processing unit that inputs object unit images that are images for a plurality of objects constituting one frame image, and performs addition processing of rolling shutter distortion for each of the object unit images on the basis of information on a rolling shutter time difference; and a composite image generation unit that generates a composite image obtained by combining the object unit images subjected to the addition processing by the distortion addition processing unit into one frame image.

A pixel and an image sensor, relating to the technical field of image sensors. The pixel comprises: a photosensitive unit for generating electric charges in response to light; a transmission unit for transmitting the electric charges generated by the photosensitive unit to a floating diffusion node; a reset unit for resetting the pixel; an amplification unit for amplifying a voltage at the floating diffusion node and outputting the amplified voltage to a storage unit; the storage unit for storing a reset voltage and a signal voltage; a switching unit for switching an exposure mode of the pixel and switching a conversion gain of the pixel in the exposure mode, wherein the exposure mode comprises a global shutter mode and a rolling shutter mode; and an output unit for outputting the reset voltage and the signal voltage. The pixel supports global shutter and rolling shutter, and supports a high dynamic range in both a global shutter mode and a rolling shutter mode.

The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor generates image frames using pixels having different sensing ability for a processor to perform image combination.

A method and system for determining a camera pipeline exposure timestamp error in a rolling shutter camera system is disclosed. The exposure timestamp error determination system includes a rolling shutter image sensor configured to capture an image and a processor. The processor determines a timestamp error by capturing the image using the rolling shutter image sensor, where the image includes a barcode encoded with a barcode timestamp. The processor then obtains a system exposure timestamp corresponding to when the rolling shutter image sensor captured the image and obtains the barcode timestamp by decoding the barcode. The pipeline exposure timestamp error for the rolling shutter camera system is then determined by comparing the obtained barcode timestamp to the system exposure timestamp.

The application provides a license plate recognition device test method, device, electronic equipment and storage medium, obtains a test case; the test case includes a license plate parameter, a trajectory parameter and an illumination parameter; based on the license plate parameter, a target license plate number is displayed on an electronic ink screen; the illumination device is controlled to output light according to the illumination parameter; the motion execution device is driven to drive the electronic ink screen to perform physical motion according to the trajectory parameter, when moving to a trigger position, the license plate recognition device is controlled to perform image acquisition and license plate recognition, and a recognition result is obtained; based on a unified time reference, a case space-time record is obtained; based on the recognition result and the case space-time record, a test report is generated. In the scheme, the motion blur caused by high-speed displacement and the rolling shutter distortion are reproduced through real physical motion, the beat frequency interference is reduced by using a wireless electronic ink screen, and the illumination interference is reproduced by fixing the illumination parameter to the test case, so that the purposes of reproducing real physical motion and illumination interference and reducing beat frequency interference are achieved.

A medical control device includes: a driving mode switch configured to switch a driving mode of a rolling shutter type image sensor in which a plurality of pixels are two-dimensionally arrayed in units of horizontal lines; and a dimming controller configured to control a light emitting element configured to emit light according to a supplied current, and switch control of the light emitting element according to the driving mode.

An ophthalmic device includes: a first light source; an illumination optics system that generates slit-shaped illumination light using light from the first light source; a light scanner that deflects the illumination light and guides it to the fundus of the eye being examined; an imaging optics system that guides the return light from the fundus to an image sensor configured to acquire the light reception result of the return light of the illumination light using a rolling shutter method; an acquisition unit that acquires a fundus image of the eye being examined using light from a second light source; a flare determination unit that determines whether a flare has occurred based on the fundus image of the eye being examined; a control unit that performs flare optimization control by changing the imaging conditions in a manner that controls the first light source, etc., based on the first determination result obtained by the flare determination unit to prevent flare from occurring; and an image forming unit that, when it is determined that no flare has occurred based on the fundus image obtained under the changed imaging conditions, forms an image of the fundus based on the light reception result obtained by the image sensor.

A locking system for a rolling shutter comprises a housing, a body, and a lock bar. The housing has a longitudinal housing channel. The body has a body channel, and is positioned in and moveable transversely within the housing channel. The lock bar is positioned within the body channel, and is moveable longitudinally to the body and housing between a locked position extending away from the body and an unlocked position retracted toward the body. The movement of the body within the housing channel is coupled to the movement of the lock bar between the locked and unlocked positions.

An ophthalmic apparatus includes an illumination optical system that generates slit-shaped illumination light using a first light source; an optical scanner that deflects the illumination light to a fundus of a subject's eye; an imaging optical system that captures light from the fundus using a rolling shutter method; an acquisition unit that acquires a fundus image of the subject's eye using light from a second light source; a flare determination unit that determines whether or not flare occurs by analyzing the fundus image; a controller that performs flare optimization control by controlling at least one of the first light source, the illumination optical system, the optical scanner, the imaging optical system, and the image sensor based on a first determination result obtained by the flare determination unit; and an image forming unit that forms an image of the fundus when the flare does not occur.

In a sample observation device, an image capturing unit includes an area image sensor that performs image capturing by the rolling shutter method in which a start of an exposure period of pixel columns in the pixel region is shifted by predetermined time, and a control unit controls the image capturing unit so that an exposure order in each of the pixel columns is reversed between a period in which a scanning unit scans a sample in a first direction and a period in which the scanning unit scans the sample in a second direction.

An egress system for a motorized rolling shutter, comprises an articulated shutter curtain that is raised or lowered by winding or unwinding the curtain about a rotatable cylinder. A planetary gear system comprises a sun gear, planet gears, a planet carrier, and a ring gear. Rotation of the planet carrier is driven by a motor, and ring gear is rotationally coupled to the cylinder. In motorized operation, the rotation of the sun gear is arrested by a brake, such that the rotation of the planet carrier causes the planet gears to rotate, which drive the rotation of the ring gear and cylinder. When the motor is inoperable, the brake is released to permit rotation of the sun gear, which permits the planet gears to rotate without rotation of the planet carrier, and allows the manual rotation of the ring gear and cylinder.

An ophthalmic apparatus includes an illumination optical system, an optical scanner, an imaging optical system, a controller, and an image forming unit. The illumination optical system is configured to generate slit-shaped illumination light. The optical scanner is configured to deflect the illumination light to guide the illumination light to a fundus of a subject's eye. The imaging optical system is configured to guide returning light of the illumination light from the fundus to an image sensor. The controller is configured to control the optical scanner. The image forming unit is configured to form an image of the fundus based on a light receiving result captured in an imaging target region on a light receiving surface of the image sensor. The image sensor is configured to capture the light receiving result in an opening region on the light receiving surface using a rolling shutter method, the opening region corresponding to an illumination region of the illumination light on the fundus, the illumination region being moved in a predetermined scan direction by the optical scanner. The controller is configured to control the optical scanner so that irradiation times of the returning light at a plurality of light receiving elements in the imaging target region are substantially equal.

Provided is an imaging apparatus including an image sensor including a pixel array that includes a plurality of pixels in a matrix form, the image sensor being configured to output first image data captured in a rolling shutter mode and second image data captured in a global shutter mode, and at least one processor configured to process the first image data and the second image data and output third image data based on the processing.

This invention discloses a high-frame-rate multispectral infrared imaging system and method based on multi-aperture multiplexing, belonging to the field of spectral imaging technology. The system includes a converging imaging optical unit, a collimating or relay optical path, a multi-aperture replication imaging unit, a spectral selection unit, an area array uncooled infrared detector, and an image processing module. The converging imaging optical unit is used to converge and image the target scene to form a primary image plane; the collimating or relay optical path is located after the primary image plane and is used to collimate or relay the imaging beam; the multi-aperture replication imaging unit is used to replicate the same scene to form multiple sub-aperture images arranged in two dimensions; the spectral selection unit is located in the replication imaging optical path and is used to perform spectral grouping of the sub-aperture images; the area array uncooled infrared detector is used to receive the multiple sub-aperture images and perform line-by-line exposure and readout using a rolling shutter method; the image processing module is used to perform spectral grouping and temporal reconstruction processing on the sub-aperture images.

This application relates to the fields of image processing and computer vision technology, and provides an electronic image stabilization method, apparatus, and storage medium based on single-camera depth sensing. The method includes: processing the obtained pre-processed image I... t Perform pixel-by-pixel depth estimation to generate a depth map D. t Based on depth map D t The scene is divided into multiple depth layers, and a hierarchical model is built for each depth layer; from the preprocessed image I t Feature points are extracted from the feature points and the depth map D. t Estimate the camera's motion pose; for each depth layer, apply a differentiated smoothing strategy based on the camera's motion pose to generate a smooth motion trajectory R for that depth layer. s (i) and T s (i), where i is the depth layer index; based on the smooth motion trajectory R of each depth layer s (i) and T s (i) For the preprocessed image I t Layered 3D geometric compensation is performed, and wide-angle distortion correction and Rolling Shutter effect correction are integrated to generate a compensated image. The compensated image is then subjected to boundary restoration and cropping optimization, and a stable video stream is output.