5 results about "Camera Link" patented technology

This disclosure relates to a six-dimensional tracking and measurement system and method based on visual active tracking. The measurement system includes a probe, a laser tracker, and a computing center. The probe includes: a target base, a target rotating seat rotatable along a first rotation direction, multiple feature marker structures disposed on the target rotating seat and capable of emitting or reflecting light beams, and a target disposed on the target rotating seat and rotatable along a second rotation direction. The laser tracker includes: a tracker base, a rotatable aiming unit that emits a laser beam, and an attitude camera linked to the aiming unit. The computing center is used to calculate the first attitude information of the target rotating seat relative to the attitude camera, and to calculate the target attitude information of the target base relative to the tracker base based on the first rotation angle, the third rotation angle, and the fourth rotation angle. Thus, the attitude information of the target rotating seat can be obtained through the attitude camera, thereby obtaining the attitude information of the target base.

The application provides a camera link determination method and device of an AR glasses and an electronic device. The method comprises the following steps: obtaining a plurality of first relative pose relationships, each first relative pose relationship being a relative pose relationship between two adjacent cameras, and the first relative pose relationship comprising a position relationship and an orientation vector relationship of the cameras at a current time; constructing a spanning tree comprising the plurality of cameras; calculating the weight of each edge of the spanning tree according to the first relative pose relationship, and determining that a minimum spanning tree formed by edges with the minimum weight is the camera link at the current time. The method determines the pose information of the cameras by obtaining the images of the cameras, constructs the spanning tree of the cameras, and determines that the minimum spanning tree formed by the edges with the minimum weight is the camera link, thereby solving the problem that the fixed link of the cameras in the AR glasses in the prior art causes the inter-frame matching of the cameras at some time to be less, and the problem that the stability of the AR glasses is low.

The application relates to the technical field of intelligent networked vehicles, in particular to a streaming rear-view video transmission system for an intelligent networked vehicle, which comprises a video acquisition and coding module, a channel quality sensing module, an adaptive code rate scheduling module, a functional safety monitoring module and a degradation execution module; the application acquires rear-view field image and outputs a video code stream and a frame-level image quality parameter, acquires a multi-dimensional original channel index and determines a comprehensive channel quality evaluation value, determines a target code rate according to the frame-level image quality parameter and the comprehensive channel quality evaluation value and issues a coding parameter instruction, determines a fault state code based on a camera link heartbeat signal and a transmission quality state signal, matches a degradation execution strategy according to the fault state code, controls display output and reports a system state to a vehicle domain controller, and solves the problems of single code rate scheduling, insufficient channel sensing and fault silent failure of an existing rear-view video transmission system.

This disclosure relates to a tracking laser 3D imaging system, including a laser tracker and a multi-view laser 3D scanner. The laser tracker includes: an aiming unit capable of emitting a positioning laser beam, a rotation drive mechanism for driving the aiming unit to rotate and align with the scanner, and a monocular attitude camera linked to the aiming unit. The multi-view laser 3D scanner includes: a housing, multiple retroreflectors disposed in different orientations of the housing, multiple feature marker structures arranged around the housing capable of emitting or reflecting beams, a multimode laser assembly for emitting an imaging laser beam toward the object under test, and multiple scanning imaging cameras for capturing the imaging laser beam on the object under test. Thus, the position and attitude of the multi-view laser 3D scanner can be acquired in real time by the tracker, and the point cloud data acquired by the multi-view laser 3D scanner can be unified into the coordinate system of the laser tracker.

The application relates to the technical field of cameralink data long-distance transmission, in particular to a cameralink data encryption and detection and repair device based on FPGA, which comprises an input module, a stable clock module, a sampling module, an encryption module, a comparison module, a repair module and an output module; the stable clock module is used for obtaining a stable clock; the sampling module samples time sequence parameters T of image data based on the stable clock; the encryption module encrypts the image data to generate an encrypted sequence D1, and calls the sampling module to sample the encrypted sequence D1 based on the stable clock to obtain time sequence parameters T1; the comparison module compares T and T1 to determine whether a time sequence error occurs; the repair module modifies the encrypted sequence D1 based on the difference between T and T1, obtains an encrypted sequence D3 conforming to T as image encrypted data, and calls the output module. The application can realize cameralink data encryption and time sequence detection and repair.