Abstract: A non-maximum suppression operation device and system; the non-maximum suppression operation device includes: a data access module to import external data or export a non-maximum suppression computation result of the external data; a control module to send a control signal for performing a computation on the external data; and an operation module to perform an intersection-over-union computation on the external data on the basis of the control signal to obtain an intersection-over-union computation result, and to compare the intersection-over-union computation result with a preset threshold value to obtain the non-maximum suppression computation result.

Abstract: A method for shadow correction verification parameter determination, the method comprising: obtaining correction data in each block of a plurality of correction images, the correction data comprising luma information and color information; wherein the luma information is the ratio of a luma to a luma of a center block, and the color information is a ratio of a color value to a color value of the center block; and calculating at least one set of standard values and deviation values of each block by using the luma information and the color information in each block of the plurality of correction images and taking the at least one set of standard values and deviation values to be correction verification parameters in the shadow correction verification.

Abstract: A method for determining a fisheye camera shadow correction parameter, comprising: capturing and acquiring a raw image using a fisheye camera that is not installed in an outer housing; obtaining the raw image from the fisheye camera; performing statistics on luminance information and chrominance information in each block of the raw image; and calculating a correction parameter for the fisheye camera based on the luminance information and the chrominance information of each block.

Abstract: A method, apparatus, storage medium, and terminal for establishing a Wi-Fi connection is provided. The method includes the following steps: when a workstation is detected, determining a Bluetooth binding relationship with the workstation; if the Bluetooth binding relationship indicates that a binding has already been established with the workstation via Bluetooth, sending a session request to the workstation to request to start a session; when it is determined that the session is started successfully, requesting Wi-Fi connection parameter information from the workstation via Bluetooth; and after the Wi-Fi connection parameter information is received, using the Wi-Fi connection parameter information to establish a Wi-Fi connection with the workstation.

Abstract: Methods and systems for processing webcam data are disclosed. According to some disclosed embodiments, the method includes: determining data to be processed; sending a control request to a server to request a task initiation permission for a webcam cluster; in response to an authorization instruction of the server, determining property information of each webcam in the webcam cluster; segmenting the data based on the property information of each webcam, to generate a plurality of data segments; sending each of the plurality of data segments to a corresponding webcam in the webcam cluster for processing; receiving intermediate results generated by the webcam cluster on the basis of the plurality of data segments; and combining the intermediate results into a final result.

Abstract: A color correction method and device, and computer-readable storage medium thereof, the color correction method including: obtaining an image to be corrected and a color temperature of the image, the image being in a YUV color space; determining first and second adjacent quadrants in a UV plane associated with each pixel point in the image according to a position of the pixel point on the UV plane; and performing color correction on each pixel point using correction matrices respectively corresponding to the first and second adjacent quadrants and the image color temperature, each correction matrix being calculated in advance of the color corrections according to the chrominance value of a color patch in each of the first and second quadrants, the color temperature, and a standard value corresponding to the color patch.

Abstract: System and method for controlling an image-recording device are disclosed. The image-recording device includes a control button. The method may include: starting a menu page, the menu page having a plurality of action instructions; receiving a press on the control button; when the press is a first preset press type, selecting one of the plurality of action instructions based on a sliding operation on the menu page, wherein one action instruction is selected at each time of sliding; and when the press is a second preset press type, executing a currently selected action instruction and closing the menu page. The first preset press type is one of a long press and a short press. The second preset press type is the other one of a long press and a short press. The long press has a longer pressing time than the short press.

Abstract: Methods and systems for configuring a plurality of cameras to start capturing images are disclosed. A method of configuring a plurality of cameras to capture images includes synchronizing clocks of a plurality of cameras to run on a same time and instructing the cameras to start capturing images at a capturing time. The method configures a plurality of cameras to start capturing images at the same time.

Abstract: An apparatus includes a sensor for sensing an environment and a speaker. The apparatus also includes a display capable of displaying video information in multiple directions, wherein the display is configured to display video information in different directions based on information of an object sensed by the sensor. The speaker is configured to generate in multiple directions sound associated with the video information.

Abstract: A system for detecting a motion event based on images. The system acquires a first image and a comparison image, and generates a first edge image and a comparison edge image based on the first image and the comparison image. The system also determines the difference between the first edge image and the comparison edge image. The system indicates a motion event if the difference between the first edge image and the comparison edge image meets or exceeds a threshold.

Abstract: A device is provided for adjusting brightness of a plurality of images each including a plurality of pixels. The device may include a memory configured to store instructions. The device may also include a processor configured to execute the instructions to determine overall luminance values of the images. The processor may also be configured to determine, from the images, a reference image and a reference overall luminance value based on the overall luminance values. The processor may further be configured to determine adjustment factors for the images based on the reference overall luminance value of the reference image, determine weighting factors for the pixels in an image to be adjusted, and adjust luminance values of the pixels in the image to be adjusted based on an adjustment factor for the image and the weighting factors for the pixels.

Abstract: Embodiments of the disclosure provide a method, apparatus, and computer readable medium for optimizing memory card performance.

Abstract: A white balance parameter determination method and white balance adjustment method, device, and storage medium, the parameter determination method including: obtaining raw images captured by a camera device in each of a set of color temperature categories; calculating a red average value (Ravg) and a blue average value (Bavg) of each raw image; determining a red adjustment value according to a first difference value between the Ravg of each raw image and a Ravg of a golden set and determining a blue adjustment value according to a second difference value between the Bavg of each raw image and a Bavg of the golden set; and determining a final red adjustment value using the red adjustment value and a preset red adjustment value in a preset parameter table and determining a final blue adjustment value using the blue adjustment value and a preset blue adjustment value in the preset parameter table.

Abstract: System and method for detecting driving behavior include a method including sampling, at a preset time interval, acceleration data of a vehicle generated by an accelerometer along a longitudinal direction of the vehicle. The accelerometer is mounted on the vehicle. The method also includes determining an average acceleration along the longitudinal direction by averaging the sampled acceleration data over a first preset time period. The average acceleration is represented by a magnitude and a direction. The method further includes when the magnitude of the average acceleration is greater than a first preset magnitude, determining an aggressive driving behavior has occurred.

Abstract: A moving object detection method and apparatus are disclosed. The method may include: obtaining a first image and a second image of a scene; determining a difference of the first image and the second image; performing a binarization operation on the difference of the first image and the second image, to generate a binary image; determining the number of pixels whose values are nonzero in each column of the binary image, to generate a column pixel histogram; and determining whether a moving object is present in the scene based on the column pixel histogram.

Abstract: Embodiments of the disclosure provide a fisheye lens. The fisheye lens can include a first lens group near an object side, a second lens group near an imaging plane, and an aperture diaphragm disposed between the first and second lens groups. The first lens group can include, disposed sequentially from the object side to the imaging plane, a negative meniscus spherical first lens, an aspherical second lens, and an aspherical third lens. The second lens group can include, disposed sequentially from the object side to the imaging plane, a positive meniscus spherical fourth lens, a fifth lens formed of a positive biconvex spherical lens and a negative biconcave spherical lens, and an aspherical sixth lens.

Abstract: Embodiments of the disclosure provide a method, an apparatus, and a readable storage medium for controlling a time-lapse photographing. The method includes detecting whether a time-lapse photographing session has ended; determining a time of a next turning-on of the camera in response to the detection that the session has not ended, the time of the next turning-on of the camera being earlier than a time of a next photographing event, the time of the next photographing event being a sum of a time of a current photographing event and a time interval between photographing events; configuring a real time clock based on the time of the next turning-on of the camera; shutting down the camera; starting up the camera when the time of the next turning-on of the camera is reached; and taking a photograph when the time of the next photographing event is reached.

Abstract: A light structure for an electronic device includes a first portion permitting user access to a button of the device; and a second portion surrounding the first portion, wherein the second portion permits light from a light source to pass through. The light passing through the second portion varies according to a condition of the electronic device.

Abstract: Systems and methods for bullet-time photography are disclosed. According to certain embodiments, a method for bullet-time photography may include arranging a plurality of cameras around a subject of the bullet-time photography. The method may also include projecting a light beam from each of the plurality of cameras to the subject. The method may further include aligning an imaging direction of each of the plurality of cameras according to a direction of the respective light beam. The method may further include triggering the plurality of cameras to capture images of the subject.

Abstract: A method, apparatus, computer-readable storage medium, and terminal for calibrating automatic white balance is provided including: obtaining a first white point acquired by a device under calibration capturing a neutral color under a calibration light source, and obtaining a second white point acquired by a predetermined golden set capturing a neutral color under the calibration light source; if either or both a first difference value between a first red deviation value and a second red deviation value is greater than a first predetermined threshold value and a second difference value between a first blue deviation value and a second blue deviation value is greater than a second predetermined threshold value, performing one or more of adjusting the second red deviation value so that the first difference value becomes smaller and adjusting the second blue deviation value so that the second difference value becomes smaller; and calibrating the device under calibration by using one or more of the adjusted second