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330results about How to "Clear imaging" patented technology

Parameter calibration method for cameras of vehicle-mounted all-round view system

Provided is a parameter calibration method for cameras of a vehicle-mounted all-round view system. When internal parameters and external parameters of the cameras of the vehicle-mounted all-round view system are calibrated, a set of three-dimensional calibration markers are adopted and comprise a plurality of characteristic points which can be recognized easily from images and are provided with given three-dimensional coordinates; when a vehicle to be calibrated is parked in a calibration area, automatic image data collection is carried out through manual work or through external trigger signals, characteristic point extraction is carried out on the collected images, each camera is calibrated corresponding to the three-dimensional coordinate of each characteristic point, and errors of locating are lowered through the processes such as parameter optimization. According to the parameter calibration method for the cameras of the vehicle-mounted all-round view system, through the three-dimensional calibration markers, all areas of the cameras can be covered as much as possible, and the influence of camera distortion on the measuring errors in the calibration process is small; compared with a previous plane two-dimensional calibration board, a three-dimensional calibration board is accurate in selected characteristic point position, clear in imaging and low in error value, and image stitching precision is greatly improved.
Owner:宁波舜宇智行传感技术有限公司

High-definition laser night-vision viewer

The invention relates to a high-definition laser night-vision viewer, which belongs to the field of laser illumination devices. The high-definition laser night-vision viewer is characterized by comprising an infrared laser illuminator and a high-definition camera, wherein the infrared laser illuminator and the high-definition camera are respectively connected with a control module of a controller, the controller is further provided with a communication module and a driving module, and the control module is further connected with the communication module and the driving module simultaneously; the control module is responsible for integral operation of the night-vision viewer and can automatically detect the light intensity of external environment, open/close the infrared laser illuminator and control the black and white/color conversion of the high-definition camera simultaneously, can be communicated with the communication module and a background device and control the driving module so that the night-vision viewer rotates to an appointed position; the communication module transmits high-definition video and control commands between the night-vision viewer and the background control device; and the driving module drives the night-vision viewer to actuate. The high-definition laser night-vision viewer has the characteristics of clear imaging, long night visual range, good laser synchronization effect, strong monitoring elusiveness, and the like and has the beneficial effect of solving the problem of high-definition monitoring at night effectively.
Owner:山东神戎电子股份有限公司

Photographing method and mobile terminal

The embodiment of the invention provides a photographing method and a mobile terminal. The method comprises the following steps of: monitoring brightness information of a photographing scene; while monitoring that the brightness information of the photographing scene is less than a first brightness threshold value, controlling a black and white sensor camera to focus and image a target object in the photographing scene so as to obtain a black and white image; performing object feature identification of the black and white image so as to determine feature areas of various objects in the black and white image; and complementing colours of the feature areas of various objects in the black and white image so as to obtain a coloured image corresponding to the black and white image. According to the embodiment of the invention, the image is photographed by using the black and white sensor camera in a low-illumination environment; object feature area identification of the photographed black and white image is carried out; the colours of the feature areas of various identified objects are complemented correspondingly; therefore, the coloured image corresponding to the black and white image is obtained; imaging of the coloured image in the low-illumination environment is realized; imaging is clear; and the effect is good.
Owner:VIVO MOBILE COMM CO LTD

Circumferential scanning imaging control method and circumferential scanning imaging system

The invention relates to a circumferential scanning imaging control method and a circumferential scanning imaging system. A circumferential scanning imaging system which the method is based on comprises an orientation scanning rotary table, and an infrared optical system, a detector and an orientation compensation oscillating mirror which are fixedly arranged on the orientation scanning rotary table, a view field offset generated every time when the orientation compensation oscillating mirror swings is used for compensating a view field angle corresponding to successive imaging, and when an imaging view field is fixed, a swinging angular speed needed by the orientation compensation oscillating mirror is alpha/T<INT>, wherein alpha is an angle which the oscillating mirror needs to swing for compensating the view field, and T<INT> is integration time of exposure of the detector, needing to be met when the orientation compensation oscillating mirror swings an angle of alpha. In circumferential scanning control, the swinging angular speed of the oscillating mirror has nothing to do with the rotating speed of the rotary table, and since the swinging angular speed of the oscillating mirror is not affected by the rotating speed of the rotary table, the control method is simple to control, is not prone to control errors and realizes non-trailing coupling.
Owner:LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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