229 results about "Rolling shutter" patented technology

Techniques for reducing latency associated with temporal sensor data processing. The techniques may include determining a region of interest within a field of view of a temporal sensor (e.g., rotating lidar sensor, rolling shutter camera, etc.). Based at least in part on determining the region of interest, an azimuth angle associated with a partial scan of the temporal sensor may be determined such that the region of interest is disposed within the azimuth angle. The techniques may also include receiving sensor data from the temporal sensor and determining whether the sensor data corresponds with the azimuth angle / region of interest. Based at least in part on a determination that the sensor data corresponding with the azimuth angle / region of interest has been received, the sensor data may be processed prior to at least one of receiving additional sensor data or a completion of a full scan by the temporal sensor.

The invention relates to the technical field of image sensors, and discloses an illumination imaging method and device for mark recognition, and the device comprises an image sensor array which is used for carrying out the line-by-line exposure collection of target region marks, enabling each line of pixel points to be in an exposure state, and forming a target mark image; the imaging lens system is used for guiding reflected light of the target mark image to be transmitted to the image sensor array and reducing interference of other stray light received by the image sensor array except for illumination of an illumination system of the imaging device; the one or more groups of illumination systems are used for providing specific illumination for the target mark image in a specific window period, so that the exposure intensity of image pixel points in the window period is higher than that in a non-window period; a set of control and computing subsystems; a group of power supply systems; and a group of substrates. According to the invention, the problem of jelly effect of the rolling shutter image sensor is effectively solved, and further application of the rolling shutter image sensor in the field of mark identification is greatly expanded.

The present disclosure relates to techniques for imaging tissue of a subject. An exemplary method comprises transitioning a (liquid crystal) light shutter to an open state to allow reflected light from illuminating the tissue of the subject with a visible-light illumination source to accumulate charge at a plurality of rows of pixels of an imager; transitioning the light shutter to a closed state to prevent the imager from receiving visible light; during a first readout period, reading accumulated charge to produce a first set of imaging data; while the light shutter is in the closed state, illuminating the tissue of the subject with a fluorescence excitation illumination source; during a second readout period after the first readout period, reading accumulated charge to produce a second set of imaging data; and generating image frames based on the first set of imaging data and the second set of imaging data.

An image sensor includes: at least one photodiode; and a row driver configured to, in a signal-dump operation of a global shutter mode, control a first capacitor to store a pixel voltage corresponding to a first node and a second capacitor to store a reset voltage corresponding to the first node, and in a rolling shutter mode, control any one or any combination of the first capacitor and the second capacitor to store overflowed charge from the at least one photodiode.

Visual-inertial tracking of an eyewear device using a rolling shutter camera(s). The device includes a position determining system. Visual-inertial tracking is implemented by sensing motion of the device. An initial pose is obtained for a rolling shutter camera and an image of an environment is captured. The image includes feature points captured at a particular capture time. A number of poses for the rolling shutter camera is computed based on the initial pose and sensed movement of the device. The number of computed poses is responsive to the sensed movement of the mobile device. A computed pose is selected for each feature point in the image by matching the particular capture time for the feature point to the particular computed time for the computed pose. The position of the mobile device is determined within the environment using the feature points and the selected computed poses for the feature points.

The utility model relates to the field of vehicle armrest box detection equipment, in particular to a roller shutter force detection mechanism, which comprises a fixed frame, a sliding mechanism, a force sensor and a positioning and clamping device, the sliding mechanism and the positioning and clamping device are arranged on the fixed frame, an armrest box to be tested is placed on the positioning and clamping device, and the force sensor is arranged on the fixed frame. A roller shutter of the armrest box faces the sliding mechanism, the force sensor is installed on the sliding mechanism and moves along the opening and closing path of the roller shutter along with the sliding mechanism, a clamping block is fixedly connected to the force sensor, and the clamping block is connected with a protruding block on the roller shutter in a clamped mode in the moving process of the force sensor. According to the utility model, the longitudinal sliding plate can freely slide in the horizontal and vertical directions, and is matched with the arc-shaped guide rail, so that the force sensor can move along the shape of the roller shutter and is attached to the moving track when the roller shutter is opened and closed, the force value of the whole moving process of the roller shutter can be accurately detected, the detection process is stable, and the detection result is accurate.

A camera device placed behind a display screen with singular resolution and uniform level of transparency, capturing the user on the front side of the display capturing in the camera's FOV at least some of the user's touch gestures when in contact of the display screen. In a preferred embodiment, the display is semi-transparent with at least 25% or more transparency, and the camera is placed at the center of the back surface of the display screen to allow natural looking images of the person's gaze or glance. The camera is integrated with a built-in processor that process application software for viewing captured images from the camera, applies a spatial filter to eliminate certain distortion, embed the camera view image of the person in an mirror image with the digital content being displayed to form a combined new imaging with both person and digital display, and exchanging both video images and on display content with a remote party via a communication server to enable a shared transparent digital “glass board” where both parties can see where the other party is gazing or gesturing or writing over the shared digital content on the “glass board”. Wherein the processor controls the video output and the camera's shutter to synchronize the display's progress scan refresh lines with the camera's rolling shutter scan lines in time and imaging location.

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.

An ophthalmic apparatus includes a light source, an illumination optical system, an optical scanner, an imaging optical system, and a controller. The illumination optical system generates slit-shaped illumination light. The optical scanner deflects the illumination light to guide the illumination light to a fundus of a subject's eye. The imaging optical system guides returning light of the illumination light from the fundus to an image sensor. The controller controls the image sensor using a rolling shutter method. The illumination optical system includes a slit-shaped aperture arranged at a position substantially conjugate optically to the fundus, an iris aperture arranged between the light source and the slit, and configured to be at a position substantially conjugate optically to an iris of the subject's eye; and an optical element arranged between the light source and the iris aperture, to deflect the light from the light source.

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.

Eyewear having asynchronous rolling shutter (RS) cameras such that the images produced by each camera are misaligned and a state including velocity and gravity direction in the eyewear frame of reference is computed. The state is not limited to these two parameters as other parameters such as acceleration bias, gyroscope bias, or both can be included. A mathematical solver is used such that the processing time to compute the velocity and gravity direction is acceptable. Arranging the RS cameras in an asynchronous configuration allows the motion of the eyewear to be estimated from only one stereo pair of images and does not require more images to be processed.

When capturing living tissue as a moving image using a rolling shutter method, an adjustment process having an adjustment level is executed to suppress artifacts generated along lines corresponding to scanning lines of an imaging element within a frame image. An endoscope system comprises: a light source device; an electronic endoscope having an imaging element for capturing living tissue using a rolling shutter method; and a processor having an adjustment unit that adjusts the brightness of the frame image by combining at least one of adjustment of the exposure time of the imaging element, adjustment of the light intensity of the illumination light, and gain adjustment for determining the signal level of the frame image obtained by the imaging element. The adjustment unit determines whether information related to the amount of movement or shaking of a subject image within the captured image satisfies an adjustment condition, and executes the adjustment process by adjusting an adjustment level, whose value indicates the strength of the adjustment process, based at least on the determination result.

1. Name of this design product: Rolling shutter cover (H0180B / C). 2. Purpose of this design product: to install and fix the cover box of roller blinds, soft gauze blinds, Shangri-la blinds, etc. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1. 5. The main view and stereoscopic view are sufficient to reflect the design points, and the left and right views and the pitch views are omitted.

An ophthalmic apparatus includes a light source, an illumination optical system, a light scanner, an imaging optical system, and a control unit. The illumination optical system generates slit-shaped illumination light using the light from the light source. The light scanner deflects the illumination light and guides the illumination light to the fundus of an eye to be examined. The imaging optical system guides the return light of the illumination light from the fundus to an image sensor, and the image sensor acquires the light reception result of a region of a light reception surface corresponding to an illumination region of the illumination light in the fundus moved by the light scanner in a rolling shutter manner. The control unit controls the deflection angle of the illumination light by the light scanner. The light scanner outputs a scanner position signal corresponding to the deflection angle of the illumination light. The image sensor starts acquiring the light reception result of the return light in synchronization with the scanner position signal.

1. The name of the design product: remote controller (T25A). 2. The use of the design product: remote controller for garage door opener matching, electric door, electric rolling shutter door and electric control system. 3. The design points of the design product: in the overall shape design. 4. The picture or photo that best indicates the design points: perspective view 1.

An imaging unit of an ophthalmic apparatus according to an embodiment performs imaging using a rolling shutter imaging device while moving a projection position of slit light on a fundus of an eye to be examined. The focus adjustment unit has a structure for performing focus adjustment of the imaging unit. The processor performs a slit light projection control, a condition determination process, and a focus adjustment control. In the fissure light projection control, the processor controls the imaging unit in order to project fissure light to the fundus of the subject eye. In the condition determination process, the processor determines a focus adjustment condition on the basis of an output from the imaging device that detects return light of the slit light projected onto the fundus. In the focus adjustment control, the processor controls the focus adjustment unit based on the focus adjustment condition.

The application discloses an image processing method and device, electronic equipment and a computer readable storage medium. The image processing method comprises obtaining a global image, a rolling shutter image and a depth image. The first coordinate of the first projection point of each pixel point in the depth image re-projected onto the global image and the second coordinate of the second projection point re-projected onto the rolling shutter image are obtained. The first motion region of the global image is obtained according to the first coordinate and the pixel value of each pixel point in the global image, and the second motion region of the rolling shutter image is obtained according to the second coordinate and the pixel value of each pixel point in the rolling shutter image. The pixel value of each pixel point in the second motion region is corrected according to the pixel value of each pixel point in the first motion region to obtain a corrected image. In the rolling shutter image, the pixel point matched with each pixel point in the motion region of the corrected image is found out, and the pixel value replacement of each pixel point in the motion region is performed to obtain a replacement image.

The application belongs to the technical field of building structure health monitoring, and discloses a visual perception driven building structure damage intelligent monitoring and evaluation system and method. The method acquires a structure surface image with rolling shutter distortion and motion blur and a transient kinematics state sequence, and constructs a transient motion state space model. A two-dimensional pixel offset vector field coupled with platform displacement and exposure time difference is deduced in combination with structure depth information. An apparent relative displacement of adjacent image frames is extracted, a pure pixel displacement is obtained by using the vector field to strip non-structure deformation, and a real second-order physical strain tensor field is calculated by back-projection to a three-dimensional physical surface. Based on the tensor field and a preset material mechanics threshold, a spatial integral evolution model containing a non-negative truncation operator is constructed to solve a global structure damage intelligent evaluation index, and a monitoring and early warning result is output. The application can effectively eliminate the space-time distortion error of dynamic visual inspection.

The present invention discloses an ophthalmic device, comprising an illumination optical system, an optical scanner, a photographing optical system, a control unit, and an image forming unit. The illumination optical system generates slit-shaped illumination light. The optical scanner deflects the illumination light and guides the illumination light to the fundus of the eye to be examined. The photographing optical system guides the return light of the illumination light from the fundus to an image sensor. The control unit controls the optical scanner. The image forming unit forms an image of the fundus based on the light reception result obtained in the photographing object area on the light receiving surface of the image sensor. The image sensor is configured to obtain the light reception result in the opening area of the light receiving surface corresponding to the illumination area of the fundus by the illumination light moving in a predetermined scanning direction by the optical scanner in a rolling shutter manner. The control unit controls the optical scanner in such a manner that the irradiation time of the return light on each of the multiple light receiving elements in the photographing object area is approximately equal.

1. The name of the design product: water blocking door (rolling shutter type JIFG02-01B). 2. The use of the design product: for water blocking. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a rolling shutter control method, which comprises the following steps of: when a pixel array is exposed and read out, respectively counting an exposure row number and a read row number in real time to obtain an exposure count value and a read-out count value, and switching the state of a rolling shutter according to the exposure count value and the read-out count value. And in each state of the rolling shutter, enabling a module irrelevant to the state in the control system to be in a non-working mode. According to the invention, the energy consumption of the image sensor in the rolling shutter working mode can be effectively reduced.

Provided is a system and method for holographic light curtains. A system includes a holographic projector configured to project a holographic image, a rolling-shutter camera arranged to receive light from the holographic image, and at least one processor in communication with the rolling-shutter camera, the at least one processor programmed or configured to: determine an intensity of the light received from the holographic image; and detect a disturbance in a space of the holographic image based on a change in the intensity.

The present invention proposes a method for predicting the safety performance of rolling shutter doors, which belongs to the field of data prediction and includes dynamic slicing, time-weighted aggregation, adaptive projection and prediction decoder modules. The dynamic slicing module divides the time series into key periods, captures the multi-scale non-uniform changes of rolling shutter door variables, and constructs time series slicing features; the time-weighted aggregation module fuses information from different periods through dynamic weight distribution, and enhances the response capability of key time points; the adaptive projection module maintains the structural similarity of time segments, extracts low-dimensional discriminant features, and improves sensitivity to local changes; the prediction decoder module uses a structural induction modulation mechanism to adjust the influence weight of historical moments on future moments, and combines nonlinear dynamic response functions to achieve accurate prediction. This method fully considers the spatiotemporal dynamic characteristics and structural dependencies of rolling shutter door operation data, and significantly improves the prediction accuracy and robustness compared with traditional methods.

The utility model discloses a multifunctional rolling gate sealing weight, which belongs to an installation reinforcing component in the technical field of door and window equipment, and adopts the technical scheme that a first sealing weight is arranged on one side of a first door sheet in a clamping manner; the second sealing code is arranged on one side of the second door piece in a clamping mode, the first door piece and the second door piece are arranged in parallel and adjacent to each other, and the first sealing code and the second sealing code are arranged on the same side and adjacent to each other; baffle sets which abut against each other are arranged at the adjacent positions of the first sealing code and the second sealing code, and the first sealing code and the second sealing code are movably arranged through the baffle sets. According to the multifunctional rolling gate sealing weight, the corresponding rolling gate sealing weight bodies are arranged on the door pieces, the rolling gate sealing weight bodies are installed in the mode that the rolling gate sealing weight bodies can abut against each other and limit each other, and therefore it is guaranteed that every two adjacent door pieces can be hinged to each other; and the problem of mutual dislocation is avoided.

An image-stitching method compensates electronic rolling shutter (ERS) distortion and parallax to produce a composite image. A first and second image from respective sensors are received. An ERS correction mapping is computed at a lower resolution than a parallax correction mapping. A far point and a near point defining an initial epipolar line are identified. A compensated near point is determined from ERS data, and a compensated epipolar line is formed by linear interpolation between the far point and the compensated near point. A one-dimensional search along the compensated epipolar line yields a parallax translation between the images. A warp mapping is determined from the parallax translation and the ERS correction mapping, and applied to blend the images into a composite. The technique decouples ERS estimation from parallax and is suitable for multi-sensor capture devices and post-capture stitching.

1. The name of this design product: Carrier Rolling Shutter Cabinet. 2. Purpose of this design product: a cabinet for storing items. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The present application provides a visual positioning method, computer storage medium, and computer program product, wherein the visual positioning method includes: acquiring image frames captured by a rolling shutter camera; acquiring feature points in the image frames for visual positioning; acquiring IMU relative pose data, wherein the IMU relative pose data is determined based on IMU frame data output by the IMU between the start and end of exposure of the image frame; determining image row IMU relative pose data according to the image row to which the feature points belong based on the IMU relative pose data; and performing visual positioning solution based on the image row IMU relative pose data, the position of the feature points in the image frame, an inter-image measurement item determined by pre-integration of the IMU frame data, and a state quantity to be estimated. Through the present application embodiment, effective and accurate visual positioning can be performed.

Techniques for reducing latency associated with temporal sensor data processing. The techniques may include determining a region of interest within a field of view of a temporal sensor (e.g., rotating lidar sensor, rolling shutter camera, etc.). Based at least in part on determining the region of interest, an azimuth angle associated with a partial scan of the temporal sensor may be determined such that the region of interest is disposed within the azimuth angle. The techniques may also include receiving sensor data from the temporal sensor and determining whether the sensor data corresponds with the azimuth angle / region of interest. Based at least in part on a determination that the sensor data corresponding with the azimuth angle / region of interest has been received, the sensor data may be processed prior to at least one of receiving additional sensor data or a completion of a full scan by the temporal sensor.

The invention relates to an exposure control method and device, computer equipment and a computer readable storage medium. The method comprises the following steps: acquiring a line synchronization signal and a frame synchronization signal of an image sensor; the image sensor adopts a roller shutter; determining a frame starting moment of the current frame according to the frame synchronization signal; acquiring a row period, an effective imaging row number and integration time of the image sensor, and calculating a first target moment and a second target moment according to the row period, the effective imaging row number and the integration time; and by taking the frame starting moment as a timing starting point, when timing reaches a first target moment, generating a turn-on control signal of the lighting device corresponding to the image sensor, and when timing reaches a second target moment, generating a turn-off control signal of the lighting device. By adopting the method, the motion distortion can be reduced under the condition that the rolling shutter is not replaced.

1. Name of the Design Product: Folding Box (Rolling Shutter Door). 2. Use of the Design Product: For storing or placing items. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photo Most Indicating the Design Key Points: 3D View 1 of Design 1. 5. Design 1 is designated as the basic design.