100 results about "Computer imaging" patented technology

The invention relates to computer graphics and computer imaging on a video display, and includes the dynamic detection of video windows and graphical images overlapping one another. A display processor identifies differences between typical video and graphics data sources to detect the edges of video windows. By detecting the edges of active video windows within a graphics image, a display processor may uniquely adjust image characteristics of an exposed video window. These characteristics include, for example, hue, brightness, intensity and contrast.

A system and method related thereto, for automatically inspecting at least one tire of a moving vehicle. The system includes an image acquisition device including at least one camera. The camera acquires multiple real-time images of at least one tire of a moving vehicle. As the tire of the vehicle enters a field of view of the camera, the camera component is configured to photograph and transmit the multiple photographs of the at least one tire. A light source illuminates the at least one tire of the vehicle in the field of view of the camera, and the light application may be synchronous with the imaging performed by the camera. A computer image processing component receives the multiple images transmitted from the camera and analyzes the multiple images using a detection program. The computer imaging processing component analyzing the photographs and provides an inspection analysis of each at least one tire.

The invention discloses a method for measuring and pre-warning a lane departure distance based on monocular vision, belonging to the technical field of computer imaging processing. The method comprises the following steps of: collecting a video image through a monocular video camera installed in the front of an automobile at first, completing the detection of a lane line after processing through an image processing technology, and extracting geometrical information of the lane line; obtaining vertical distances between the automobile and the lane lines at left and right sides by utilizing thethree-dimensional geometry transformation relation of a pinhole imaging principle; and establishing a departure pre-warning decision method according to the vertical distances measured in real time, and providing effective information for an intelligent assistant driving technology. According to the method disclosed by the invention, when the lane line is detected by utilizing Hough transform, a constraint condition is added, a part of virtual lane line is excluded, and the operation speed and the lane line detection accuracy are increased; simultaneously, the lane departure pre-warning can be realized only by utilizing image information; the measurement influence of a vehicle departure angle on the lane departure distance is low; furthermore, the solving operation speed is high owing to the use of the three-dimensional geometry transform method; and the requirements of the intelligent assistant driving technology can be satisfied.

Tools (in the form of apparatus, systems and methods) for hands-free command and control of a dental computer imaging system are provided. A speech recognition unit converts to electronic speech data a voice command received through a microphone to select for viewing, for a selected dental patient, one of a plurality of dental images stored in a computer storage device. A command and control processor causes the selected dental image to be retrieved from the storage device and then displayed on a display monitor.

A shape-adapting irradiation method for the photon beam radiotherapy of tumor includes such steps as using CT technique to obtain the density information of patient, reproducing the tumor position and the anatomical structure of adjacent organ and tissue, displaying 2D image and 3D image of target region by computer imaging technique, projecting the tumor and its infiltrative region onto the cross-section of photon beam at the outlet of accelerator, arranging a matched multi-blade collimator or shielding lead part to said outlet, inputting the information about the energy spectrum and angle distribution of photon beam, calculating and evaluating the dosage of photon beam, and regulating said collimator.

The Semi-physical driving fatigue vision simulation system platform belongs to the technical field of driving vision simulation system platform. The invention comprises a vehicle dynamic model, a real vehicle (22), a vision simulation system and a driving information collecting system; with virtual reality as a basis, the technologies of interactive simulation, computer imaging and sensors are employed; the real vehicle (22) is in normal driving state and detects a research platform of driving fatigue state information in an all-round way; the vision simulation system comprises a work station (1) and a vision displaying device; the work station (1) resolves the vehicle dynamic model according to sensor signals of a driving information collecting system, generates and sends a dynamic driving scene to the vision displaying device; the driving information system comprises a driving parameter collecting subsystem, a video collecting subsystem, a physiology detecting subsystem and the like, which are respectively used to carry out all-round detection of characteristic information reflecting driving fatigue such as driving behavior, facial expression, body movement and physiological parameters of drivers. The invention is mainly applicable to experimental studies on the driving fatigue.

The invention discloses a method and system based on a differential phase contrast imaging reduction quantitative phase image, and relates to the field of the computer imaging. The stable method from a target image to a reduction quantitative phase image is established. The method is capable of firstly establishing a differential phase contrast imaging two-dimensional optical phase transfer function H(u), and establishing the relation between the H(u), a frequency domain function of a differential phase contrast image (the figure is as shown in the specification) and the quantitative phase information, finally executing the deconvolution operation to recover the quantitative phase information through the phase transfer function of the differential phase contrast imaging. The method is capable of further researching a method of quantitatively recovering the phase information under the asymmetrical illumination pattern formed by multi-axis division so as to enhance the reconstitution capacity of the phase information in the different directions, and using the mathematical optimization to reduce the frequency noise increase caused by the direct deconvolution. The method is capable of overcoming the defects that the traditional quantitative image acquisition operation is complicated and the imaging condition is rigorous, and the obtained image resolution is higher.

A discrete Radon projection and Mojette projection conversion method based on a fixed resolution is disclosed, which belongs to the technical field of computer imaging in the field of image processing. The discrete Radon projection and Mojette projection conversion method is characterized by converting a sparse angle discrete Radon projection under an actual imaging condition into a Mojette projection which is accurately reconstructed in a discrete domain. Based on the computer tomography imaging algorithm, Radon and Mojette projection scenes are simulated by constructing a reasonable imaging system; and after the relation between the Mojette projection and the Radon projection is analyzed in detail, a specific algorithm of converting the Radon projection into the Mojette projection under a corresponding projection vector at each projection angle on the premise of a given fixed resolution. The discrete Radon projection and Mojette projection conversion method has the effects and the benefits that at different sparse projection angles, the resolution of an Radon projection image does not need to be changed; the conversion disorder between variation of the resolution of a Mojette projection domain along with the projection vector and the constant resolution of the Radon projection is overcome; and a conversion bridge between the two projections is set up.

In a method and apparatus for performing an analysis and other activities using one or more two- or three-dimensional representational images, presenting a two- or three-dimensional representational image containing analytical information to assist in the analytical process. One or more two- or three-dimensional representational images are created, e.g., using standard photography, holography or computer imaging, and are placed in a positioner for use by the analyst. The representational images are illuminated using a light source and the analyst utilizes the information released from the representational image to perform an analysis.

The invention discloses a culture space simulation method based on the multimedia digital technology. The method comprises the following steps: constructing a virtual simulation system by relying on the computer virtual reality (VR) technology, and conducting interactive simulation and information exchange through use of various types of interactive equipment in a virtual environment by a use; conducting digital reproduction on cultural heritage through the image and computer imaging technology by a vision-based method, and preserving and reproducing the historical memories of temples and ancestral halls as cultural space in changes by utilizing the advanced virtual reality + temples and ancestral halls multimedia digital technology. According to the culture space simulation method, the conventional virtual reality technology is adopted to simulate the most prosperous scene at the time and reproduce the former Tang river historic building cultural scene to the world; the spreading design of the original style of the Tang river basin historic buildings is based, new landscapes and functional properties are selectively endowed, the landscapes are reproduced through the simulation and reproduction design, the peculiar humanity and geographical position complex is created, and the folk culture of the Ou Yue region is continued.

The invention relates to an ultrasonic imaging device and method. The device comprises a motion control platform used for controlling the image scanning path, an amplitude modulation ultrasonic transmitting system used for transmitting ultrasonic excitation signals, a data acquiring and processing system used for receiving and processing echo signals, a computer imaging and displaying system used for reconstruction imaging of echo signals which are fed back, and an ultrasonic transducer used for sending and receiving ultrasonic waves acting on a phantom. The device and method have the advantages that more contrast medium microbubbles are adsorbed by the vascular wall through radial force generated after the amplitude modulation ultrasonic transmitting system acts on low-frequency ultrasound transmitted by the ultrasonic transducer, the imaging signal intensity of tissue is improved, high-resolution ultrasonic imaging is achieved through a high-frequency component, the imaging resolution ratio and the imaging depth are both considered, and a clearer image is provided for ultrasonic diagnosis.

The Web Enabled Image Extension (WEIX) system provides extended access to patient medical scan images from the capabilities of traditional Computer Imaging systems. The WEIX system employs a Secure Web Server with add-on modules to provide a variety of user-level access. The WEIX system leverages this user-level access to create a type of workflow process to allow the diagnosis, dictation, transcription, and report release for medical scan procedures.

The invention discloses a cross blind pixel detection and correction device and methodfor a InGaAs short wave infrared imager. The device comprises a short wave infrared standard radiation source, theInGaAs short wave infrared imager, an upper computer detection analysis system and an upper computer imaging correction system. The upper computer detection analysis system collects correction imagedata uploaded to an upper computer. The upper computer imaging correction system collects original image data uploaded to the upper computer. According to the method provided by the invention, detection and processing aremainly carried out for cross blind pixels. Compared with a conventional correction processing method, the method has the advantage that a processing effect for the cross blind pixels is better. After the InGaAs short wave infrared imager carries out one-time correction parameter operation, images can be corrected through call of parameters each time when imaging is carried out, and the correction parameters do not need to be computed again. For the feature that the InGaAs short wave infrared imager carries out the imaging through utilization of scenery reflected light, anintegrating sphere is employed as the short wave infrared standard radiation source, light emergence is relatively uniform, and the temperature influence is relatively low.

The invention relates to a method for detecting and rewinding a printed material, which comprises the following steps of: detecting single printed matters arranged on the material repeatedly one by one on a printed surface of the continuous printed material; processing the single printed matters which are detected to fail to come up to the standard; and rewinding the continuous material with the printed surface facing inward or outward. The invention also relates to a device for implementing the method. The implementation of the method and the device for detecting the printed material has the following advantages that: because a computer imaging mode is adopted to detect the printing quality just after printing, and a processing unit is used for eliminating the parts with poor quality, furthermore, the printed surface of the material can face upward under various conditions through the direction changes of a same or different rewinding shafts, the method and the device for detecting the printed material can meet the requirements of different customers, and can discover and process the problems of the printing quality in time.

A one dimensional (1D) line imaging system that operates at a scanning (clock) rate of between 10-40 MHz is used to monitor the characteristics of a golf swing. A line image is analyzed in real time by an associate computer imaging system removing the need for a trigger to operate. Optics of the imaging system are designed to relate ball image size to distance so that the number of 1 D pixels imaging the ball, in particular sensing a white object, have a relation to distance to the ball. Ball image size is related to distance by monitoring the rate of increase (rate of change) of the pixels imaging the ball with time so that the speed of the club head can be determined. The speed of a golf ball that has been struck is determined by monitoring the rate of decrease (rate of change) of the pixels imaging the ball.

The invention relates to the field of electroforming, in particular to a measurement method of the internal stress of an electrical deposition layer. The measurement method comprises the following procedures: dipping a cathode test slice and an anode test slice in a transparent electroplating bath, annealing the anode test slice for 30 to 50 min under the temperature of 600 to 800 DEG C before test to eliminate the residual stress of the anode test slice, rolling out the anode test slice under static press, making the single surface of the anode test slice insulated, measuring the elastic modulus value E and the thickness value t of the anode test slice, and calculating the length L of the anode test slice dipped in electroplating liquid; making the insulated surface of the anode test slice back to the cathode test slice, connecting the cathode test slice and the anode test slice with a power supply, providing a camera outside the transparent electroplating bath, and calculating the displacement Z' of the bottom end of the anode test slice; measuring the thickness of the electroplated anode test slice, calculating the thickness value of the electrical deposition layer, and finally, calculating the internal stress S of the electrical deposition layer according to a formula, i.e. S=(1/6)*(Et<2>Z'/dL<2>). In the invention, computer imaging and measurement technique are adopted to accurately measure the displacement of the bottom end of the anode test slice so as to qualitatively and quantificationally measure the internal stress of the electrical deposition layer.

The invention discloses a Fourier laminated microscope pupil recovery method based on a neural network in the field of computer imaging. The problem that the reconstruction precision of the existingFourier laminated imaging model is low under the influence of optical phase difference is solved. A neural network model is established based on a TensorFlow deep learning framework in combination with a forward imaging mode of an FPM system. The problem that the universality of a reconstruction model based on a deep convolutional neural network is poor is solved; a recovery process for a pupil function of the system is introduced, so that the influence of optical aberration in the system on a reconstruction result can be better suppressed, and a better result is obtained. According to the invention, the frequency spectrum and the pupil function of the sample are set as a trainable two-dimensional network layer in the network; complex amplitude information and a pupil function of a sampleare obtained at the same time by minimizing a loss function in the training process. The method has good universality and can still obtain a reconstruction result better than that of a traditional algorithm under the condition that aberration exists in the system.

The invention discloses an ultrasonic concrete detection device. The ultrasonic concrete detection device comprises an upper computer imaging display module, an ARM main control chip, an ultrasonic driving module, an ultrasonic receiving module, a multi-way switch and an ultrasonic phased array transducer array, wherein one end of the ARM main control chip is connected with the upper computer imaging display module, and the other end of the ARM main control chip is connected with the ultrasonic driving module and the ultrasonic receiving module, respectively, and the ultrasonic driving module and the ultrasonic receiving module are connected with the ultrasonic phased array transducer array through the multi-way switch. According to the ultrasonic concrete detection device, the disadvantages of relatively large size, low resolution ratio and single detection result of a traditional detection device are overcome; by controlling the ultrasonic phased array transducer array, the high-speed scanning can be realized, the concrete can be effectively penetrated without being damaged by virtue of the high-frequency focusing property of the ultrasonic phased array transducer array, and the properties of a concrete materials can be detected.

The invention discloses a computer imaging control method based on image identification. The computer imaging control method comprises the following steps of firstly, obtaining and processing waveform data, establishing an initializing image, utilizing image identification and optimizing classification to select representative time and space data, performing computer reverse revolution imaging on the optimized data, and outputting a parameter image of an unknown object; building a parameter image model with a fuzzy structure, and setting a threshold value to classify a data set, so as to reduce the data amount; utilizing an image identifying technique to identify an abnormal area with liability of energy storage from a high-dimensional parameter image of the unknown object structure outputted by the reverse revolution imaging; feeding back to judge whether more data of the abnormal area is required for computer imaging again. The computer imaging control method has the advantage that on the basis of image identification and machine learning algorithm, waveform data and image data after computer imaging, the time and space data is subjected to image identification and optimizing classification in the data pre-processing phase; the image data with higher similarity can be interchanged, so as to reduce the data amount.

The invention relates to an optical detection method, in particular to a multifunctional optical panel detection method based on the imaging high-spectrum technology. A device comprises a light emitting panel, a sample bench, an imaging spectrometer and a computer. The whole brightness of the light emitting panel is a key index for evaluation of performance of the optical panel, and the abnormal point detection of the light emitting panel is beneficial to guaranteeing of quality control of product production. By adopting the imaging high-spectrum technology, the light emitting panel is scanned, so light emitting brightness of each point in the spatial position and the whole precise brightness are acquired. According to the invention, precise brightness measurement of the whole or local position of a light emitting panel in any size can be achieved; and online rapid performance detection and fault evaluation of the light emitting panel are facilitated.