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30 results about "Image simplification" patented technology

Photovoltaic cell panel grid line defect detection method and system based on artificial intelligence

The invention provides a photovoltaic cell panel grid line defect detection method and system based on artificial intelligence, and relates to the field of artificial intelligence. The method comprises the following steps: acquiring an image of a single photovoltaic cell panel; constructing an image matrix according to prior color features in the photovoltaic cell panel image, and performing sliding window calculation on the image matrix to obtain a single-channel image; obtaining a compression value of each column of pixels of the single-channel image as a one-dimensional sequence representing the photovoltaic cell panel image; and inputting the one-dimensional sequence into a time convolution network to obtain the periodicity of the grid line in the photovoltaic cell panel image, and judging the defect position of the grid line according to the abnormal point. According to the invention, the semantic segmentation network type is adopted to identify the content of each column in the image, the image processing mode does not need to debug parameters, the periodicity of the content of the photovoltaic cell panel is utilized to adapt to cell panel images of various sizes, the preprocessing process is simplified, and the generalization ability is high. According to the invention, the influence of camera parameters and illumination intensity can be eliminated, automation is realized, and the detection efficiency and accuracy are improved.
Owner:郭燕

Calibration device and method and depth camera

The invention is suitable for the field of machine vision, and provides a calibration device and method and a depth camera, the device comprises a calibration plate, a moving part, a fixed support, a projection part, a camera and a processor; the calibration plate is provided with feature points and positioning information; the projection part is used for projecting the patterned light beam onto the calibration plate; the moving part is used for changing the position of the calibration plate; the camera and the projection component are fixed on the fixed bracket, and the camera is used for collecting the patterned light beam reflected by the calibration plate and generating a calibration image; and the processor is electrically connected with the moving part and the camera, and is used for receiving the calibration image acquired by the camera, controlling the moving part to move, and determining the internal parameters of the camera and the external parameters of the camera and the projection part based on the calibration image. The calibration images of the calibration plate at different positions are obtained by controlling the moving part, acquisition of the calibration material is simplified, and therefore the calibration process of relevant parameters of the camera is simplified.
Owner:SHENZHEN ORBBEC CO LTD

Image generation model and card number identification model training method and device

The invention provides an image generation model and a card number identification model training method and device, and the method comprises the steps of carrying out the processing of a sample three-dimensional card image comprising a first sample card number in a three-dimensional form, and obtaining a sample background image and a sample plane card number image comprising a first sample card number in a plane form; taking the sample background image and the sample plane card number image as a first input image of an image generation model; and determining first target loss according to theoutput image and the sample three-dimensional card image, and adjusting a first parameter corresponding to the image generation model according to the first target loss until the output image of the image generation model is matched with the sample three-dimensional card image to obtain an image generation model comprising the trained first parameter. According to the invention, the three-dimensional card image with the card number in the three-dimensional form can be generated, the requirement for the training sample is simplified, the three-dimensional card image can serve as the training sample to train the card number recognition model, and the recognition accuracy of the card number recognition model is improved.
Owner:BEIJING DIDI INFINITY TECH & DEV

Three-dimensional model attribute image simplification method and device based on rate distortion optimization

The invention discloses a three-dimensional model attribute image simplification method and device based on rate distortion optimization. The method comprises the following steps: acquiring a three-dimensional model attribute image, equally dividing the whole attribute image into a plurality of image blocks, and determining a rate distortion curve of each image block; according to the rate distortion curve of each image block, under the limit of a given total number of pixels, using a Lagrange multiplier method to optimize and solve the down-sampling rate of each image block; and performing down-sampling on the corresponding image block by using bicubic interpolation according to the down-sampling rate of each image block to obtain a simplified attribute image. According to the method, the down-sampling rates of different areas of the attribute image are optimally determined, so that the simplified three-dimensional model with attributes is close to an original model as much as possible in appearance. The optimization process is not only based on the features of the 2D attribute image, but also considers the geometric features of the original and simplified 3D models and parameterization from the model surface to the attribute image. The attribute simplification method provided by the invention has universality.
Owner:北京云境智仿信息技术有限公司

Mining area ecological restoration guidance system based on big data

In order to solve the defects in the prior art, the invention provides a mining area ecological restoration guidance system based on big data, which comprises an unmanned aerial vehicle patrol flight system and an analysis control device. The unmanned aerial vehicle patrol flight system comprises a patrol flight unmanned aerial vehicle and unmanned aerial vehicle platforms arranged at a plurality of preset positions in a mining area along a patrol flight route of the patrol flight unmanned aerial vehicle. The patrol flight unmanned aerial vehicle at least comprises a high-definition camera shooting towards the ground. The analysis control device comprises an unmanned aerial vehicle flight control module, an image analysis module and an ecological restoration guidance module. The unmanned aerial vehicle flight control module is used for controlling the patrol flight state of the patrol flight unmanned aerial vehicle, the image analysis module receives image data sent back by the patrol flight unmanned aerial vehicle, and a color gamut distribution diagram is formed after image simplification processing. And the ecological restoration guidance module is used for obtaining corresponding ecological restoration guidance information from the big database based on the color gamut distribution diagram and sending the information to the user. On one hand, the working efficiency is improved, and on the other hand, regular monitoring of ecological changes is realized.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

Panoramic picture and video detection method and device, and readable storage medium

PendingCN112766093AAlgorithms to Simplify Face RecognitionImprove accuracyCharacter and pattern recognitionFace detectionImage simplification
The invention discloses a panoramic picture and video detection method and device and a readable storage medium. The panoramic picture detection method comprises the following steps: acquiring a panoramic picture, and presetting an angle parameter; performing angle comparison processing on the panoramic picture according to the angle parameter, and obtaining a parameter comparison result; performing image acquisition processing on the panoramic picture according to a parameter comparison result to obtain a plane picture; performing face detection processing on the plane picture to obtain a detection result, and outputting a face image according to the detection result; wherein the angle parameter at least comprises one of a roll angle parameter, a first overlook angle parameter and a first yaw angle parameter. And performing angle comparison processing on the panoramic picture, and performing image processing on the panoramic picture according to a parameter comparison result to obtain a plane picture. The plane picture is detected through the face detection processing to obtain the face image, the algorithm of face recognition of the panoramic picture is simplified, and the recognition accuracy is improved.
Owner:卓望数码技术(深圳)有限公司

Screen capture method, terminal device, and computer-readable storage medium

The invention relates to the field of computer technology, and provides a screen capture method, terminal equipment and a computer-readable storage medium, so as to solve the problem of inconvenient operation for users caused by cumbersome operations during the screen capture process. The method includes: when the display screen displays at least two first windows, receiving a screen capture operation input by the user, performing screen capture processing on the screen currently displayed on the display screen, and obtaining at least one target screen capture image, the target screen capture image and the second window The corresponding display screens are in one-to-one correspondence, and the number of target screenshot images is the same as the number of second windows. The target screenshot image is no longer a screenshot including the display screen of each first window displayed, but a corresponding target screenshot image is obtained for the display screen corresponding to each second window, without manually cropping the above screenshot , you can take a screenshot to obtain a target screenshot image corresponding to the display screen corresponding to each second window, which simplifies the operation process and is convenient for the user to operate.
Owner:VIVO MOBILE COMM CO LTD

Malicious PDF document intelligent detection method and system based on graph structure

The invention discloses a malicious PDF document intelligent detection method and system based on a graph structure. The method comprises the steps of obtaining a to-be-detected PDF document; analyzing a PDF document to obtain a graph structure feature of the document, performing classification importance sorting on all nodes of the graph structure feature, performing retention and merging processing according to a sorting result to obtain a simplified graph structure feature, and calculating a Laplacian matrix of the simplified graph structure feature as an input feature; inputting the input features into a pre-trained convolutional neural network model, and if the output is 1, determining that the document is a malicious document; if the output is 0, judging the document to be a benign document. The graph structure extraction and image simplification method has the advantages that the dimensionality of features is reduced, the training pressure of a deep learning model is relieved, and the efficiency of a system is improved; and according to the input features, the convolutional neural network model is utilized to detect and classify the documents or automatically train parameters of the model, so that the accuracy and usability of the system are improved.
Owner:ARMY ENG UNIV OF PLA
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