371 results about "Dynamic imaging" patented technology

A method and a system for dynamic imaging, UV-exposure and thermal development of relief image printing elements, including printing plates and printing sleeves. The imaging step is accomplished using ink jet printing to create an in situ mask layer on a layer of photocurable material followed by exposing the photocurable layer to actinic radiation through the in situ mask. Thereafter, the printing element is developed in a thermal developing system to create the desired relief image in the surface. If desired, the improved system may also include means for post-exposing/detacking the printing element.

The invention relates to a novel imaging method in agile satellite maneuvering, which is capable of realizing imaging of satellite during a posture adjustment process. The method comprises the following steps: according to geographic latitude and longitude of on-board orbit forecast data and imaging object point, a triaxial attitude angle directional target imaging start point of satellite is arranged; a roll angle and a pitch angle are obtained through a modeling algorithm for determining the satellite optical axis directional target imaging point; establishing a CCD image plane in a satellite model, performing calculation to obtain image motion velocity vector and a drift angle through projection calculating, and yaw angle of the satellite is controlled for correcting the drift angle, calculating the image motion velocity vector to obtain TDICCD integration time for image motion compensation, and satisfying the image processing requirement of imaging in maneuvering. The design method is capable of using in a triaxial attitude maneuvering process of the satellite for starting optical payload for a dynamic imaging technology for imaging, so that target directional requirement and image processing requirement during an imaging process can be realized.

Methods and apparatuses for correcting image artifacts in a high dynamic range image formed by combining a plurality of exposures taken at different integration periods. A determination is made as to whether there is motion between the exposures. If motion is detected, pixel signal values chosen are replaced with pixel signal values from another exposure.

A system and method for dual energy imaging in dynamic imaging sequences is disclosed. The system and method includes a x-ray source ( 204 ) configured for fast adaptation at different kV values of the x-ray source ( 204 ); a flat x-ray detector ( 202 ) having parallel signal integration and read-out; and a x-ray controller ( 206 ) in operable communication with the x-ray detector ( 202 ) and x-ray source ( 204 ). The detector ( 202 ) integrates a first signal corresponding to a first sub-image ( 300 ) at a first kV value ( 302 ), transfers the integrated first signal to a sample and hold node for each pixel and integrates a second signal corresponding to a second sub-image ( 304 ) at a second kV value ( 306 ). The detector ( 202 ) provides signal integration of the second sub-image ( 134 ) in parallel with read-out of the first sub-image from the sample and hold nodes. ( 300 ). The x-ray controller ( 206 ) controls generation of x-ray pulses in the x-ray source ( 204 ) and acquisition of images with the x-ray source ( 204 ) generating the x-ray pulses at different kV values on a millisecond timescale.

Variable-density (VD), sequentially-interleaved sampling of k-space coupled with the acquisition of reference frames of data is carried out to improve spatiotemporal resolution, image quality, and signal-to-noise ratio (SNR) of dynamic images. In one example, ktSENSE is implemented with a non-static regularization image, such as that provided by RIGR or similar technique, to acquire and reconstruct dynamic images. The integration of ktSENSE and RIGR, for example, provides dynamic images with higher spatiotemporal resolution and lower image artifacts compared to dynamic images acquired and reconstructed using ktSENSE alone.

A system is provided utilizing dynamic imaging protocol to localize vascular architecture, and to evaluate and monitor functional behavior of the vascular architecture for pre-operative, post-operative and diagnostic purposes. The system includes, among other things, a scanner having within its objective portion an assembly for capturing a photon beam emitted from an object being monitored. The system is also provided with a detection network designed to convert, into electronic signals, data correlated from the beam. A processor can be provided for generating discrete image data from the electronic signals for subsequent display as an image. The system can also include a display for viewing the image data. The system can further include a ruler for positioning on the object being monitored to permit subsequent translation of the image viewed in the display onto the object. Methods for evaluating, monitoring, and localizing the vascular architecture are also provided.

The invention provides a device for simulating dynamic imaging of a TDI CCD camera, belonging to the device in the field of simulating the imaging of spaceflight TDI CCD camera. In the device, a planar array CCD camera is arranged in a leveled three-axis air floating platform; an attitude control center computer on the platform measures the attitude angle and the attitude angular speed of the three axis of the platform real time by an attitude confirming system, obtains control signals by the processing of a control algorithm, carries out attitude control to the air floating platform by an executive mechanism flywheel, and transmits the real-time attitude information down to a simulation computer under the platform by a Bluetooth communication system in a wireless way, thus providing a real satellite attitude simulation system for the planar array CCD camera arranged on the three-axis air floating platform. The planar array CCD camera carries out real-time imaging on dynamic target surface and transmits the imaging result down to the simulation computer under the platform by a wireless local area network in real time; the simulation computer uses the transmitted image and the attitude information at corresponding time and utilizes a linear array pushbroom processing algorithm, thus being capable of realizing the simulation on dynamic imaging of TDI CCD cameras of different progressions.

A method for calibrating multi-headed high sensitivity and high spatial resolution dynamic imaging systems, especially those useful in the acquisition of tomographic images of small animals. The method of the present invention comprises: simultaneously calibrating two or more detectors to the same coordinate system; and functionally correcting for unwanted detector movement due to gantry flexing.

A method for reconstructing a digital image from a set of measurements includes providing a previous image frame in a time series of measurements of an image signal and a current image frame in the time series, calculating an estimated motion vector for a spatial point and current time point between the previous and current image frames, calculating a motion compensated current image frame from the previous image frame, estimating a known support set of a sparse signal estimate of the motion compensated current image frame where the support set comprises indices of non-zero elements of the sparse signal estimate, calculating a sparse signal corresponding to the current image frame whose support contains a smallest number of new additions to the known support set while satisfying a data consistency constraint, and correcting the motion compensated current image frame image frame from the sparse signal.

The invention relates to a high dynamic imaging module based on DMD dynamic beam splitting. The module includes DMD-based high dynamic imaging module hardware, optical path control software, and image fusion software. A target light enters a main mirror, is reflected by a dynamic beam splitting device, and then passes through an adapter, a light intensity dynamic adjustable mechanism, and a position sensor, images are acquired by cameras, and then the light passes through a DMD spatial light modulator and is transmitted to a computer for parameter calculation compensation, and the high dynamic range images can be obtained; the adapter can realize the dynamic adjustment of the splitting ratio area to the camera target surfaces according to different imaging tasks; a main lens+adapter+multi-camera optical path structure is formed through the combination with an image fusion and enhancement processing algorithm, the dynamic range provided by the optical path structure can reach 136dB, the whole dynamic range of the system is greater than 150dB, so that the high dynamic range imaging of the target can be realized. the compact and small beam splitting structure can be realized by a DMD device, so that the whole and sub-area dynamic beam splitting can be realized. The technical problem of simultaneous high-quality imaging of the rocket and flame of a target range can be solved.

Aspects of the present disclosure relate to systems and methods for generating High-Dynamic Range (HDR) images. An example device may include a camera, one or more processors, and a memory. The memory may include instructions that, when executed by the one or more processors, cause the device to determine, from a preview image captured with an initial exposure value by a camera, a first exposure value for capturing a reference image, and a second exposure value for capturing a first non-reference image, wherein the second exposure value is based on a difference between the initial exposure value and the first exposure value. Execution of the instructions may further cause the device to capture the reference image using the first exposure value, capture the first non-reference image using the second exposure value, and blend the reference image and the first non-reference image in generating an HDR image.

The present invention relates to a real-time three-dimensional ultrasonic imaging system based on mechanical scanning. It includes the following several portions: PC machine with USB interface and serial interface, two-dimensional ultrasonic scanner with digital interface, stepping motor and its control and drive portion, in which the USB interface of PC machine is connected with digital interface of said ultrasonic scanner, the serial interface of PC machine is connected with the communication port of the control and drive portion, and the output end of drive module in control and drive portion is connected with input end of stepping motor, the rotary shaft of said stepping motor is fixedly connected with ultrasonic probe of said ultrasonic scanner. Said method includes the following steps: setting scanning parameter; calculating relative position relationship of image; probe initial position resetting; space data collection; three-dimensional data reconstruction; and implementing dynamic image formation of space three-dimensional image.

Systems and methods for improved thermophotonic imaging are provided in which both amplitude and phase image information is obtained with a high signal to noise ratio and depth-resolved capabilities. Image data obtained from an imaging camera is dynamically averaged and subsequently processed to extract amplitude and/or phase image data. The system may be configured for a wide range of imaging modalities, including single frequency modulation (thermophotonic lock-in imaging), Thermal-Wave Radar imaging or Thermophotonic Radar imaging involving chirp modulation, and Binary Phase Coded Modulation. Such imaging modalities may find application in many diverse areas, including non-destructive testing and biomedical diagnostic imaging including the imaging of teeth and monitoring changes in the tooth over time which are due to pathology such as dental caries or erosion.

A magnetic resonance based dynamic imaging method comprises the steps that dynamic data is under-sampled by adopting TGRAPPA technology; the data obtained through under-sampling, and second under-sampling is performed by adopting a variable-density sampling acceleration mode; a second-time under-sampling signal is reconstructed; simulation parallel under-sampling is conducted on K space data obtained after reconstruction in the TGRAPPA mode, a full-sampling automatic calibration data ACS is established according to the under-sampled data; the full-sampling automatic calibration data ACS is mapped to a space higher than a current space in dimension, and the weight coefficient of each coil is calculated in a novel space; the K space data undergoing the simulation parallel under-sampling is filled according to the weight coefficient, and second time of reconstruction is perform to generate a final image. The magnetic resonance based dynamic imaging method does not need additional acquisition of automatic calibration signals from a K space center, noise amplification caused by acceleration time increase in parallel imaging can be well inhibited under high acceleration times, and images high in signal to noise ratio can be obtained.

The invention discloses an optical remote sensing satellite point target observation task dynamic imaging posture modeling method, which comprises the steps of obtaining the point target observation task center point imagining time of a satellite, camera station point position, posture pointing parameters and satellite orbit coordinate parameter sequences; calculating the camera pupil entrance radiant brightness and the camera integral time of the satellite on the observation task center point imagining time; on the basis of the camera integral time, processing the relevant parameters to obtain the camera station point scanning ground velocity of the satellite on the observation task center point imagining time, and using the scanning ground velocity as the constant scanning ground velocity; on the basis of the constant scanning ground velocity, solving the observation task path camera station point geographic position parameter sequence and the corresponding imaging time; calculating the posture rolling angle parameter, the posture pitch angle parameter, the posture yaw angle parameter and the corresponding angular speed parameter of each imaging time of the observation task, and completing the dynamic imaging posture model building on the basis. The effective combination of task planning and satellite posture control can be realized to a certain degree.

A quantitative Single Photon Computed Emission Tomography (SPECT) reconstruction system for myocardial blood flow quantitation with SPECT or Single Photon Emission Computed Tomography/Computed Tomography (SPECT/CT) dynamic imaging. The present invention solves the problems of physical interference and patient motions in dynamic SPECT imaging to enable the quantitative ability for myocardial blood flow (MBF) and coronary flow reserve (CFR) quantification.

A method of deriving blood perfusion indices for a region of interest (ROI) of a subject, comprising the steps of administering a contrast agent to the subject during a dynamic imaging scan, converting signal intensity data from raw images of the scan into contrast agent concentration data, deriving parameters from the contrast agent concentration data using at least one transport function that accounts for delay and dispersion of the contrast agent, and calculating the blood perfusion indices from the derived parameters.

The invention relates to a dynamic imaging method for multilayer flatten layers and a system thereof, wherein, the imaging system is mainly provided with a graphic engine, a special effect procedure, a plurality of layer storage areas and a scratch pad area for layer attributes in an external memory; first a special effect procedure is carried out before leading a user interface to assume a dynamic imaging method, then three types of image layers corresponding to a background picture, a functional picture and a special effect picture which are on the user interface are obtained, afterward imaging attribute values to which the image layers belong are defined for the following merged describing for a plurality of image layers; namely, the sequence of all the image layers is determined by the imaging depth value of each image layer, the merged describing of all the image layers is carried out according to the sequence; therefore, a plurality of functional patterns of the functional picture can be integrated into the user background and the special effect picture and present an unanticipated gorgeous user interface picture.

The invention relates to a camera interchangeable dynamic light splitting imaging system and a method thereof applied to high-dynamic imaging. The system realizes high-quality imaging of a target by adopting a combined imaging mode, combining a rear-end image fusion processing algorithm, and forming a structure of a main lens, an adaptor, a plurality of cameras and multi-source image fusion. According to the system, a single-sensor imaging mode of a one-time single light path of a conventional optical measuring system is changed into a dynamic light splitting multi-sensor imaging mode; key technologies, such as a large dynamic range imaging scheme, a light splitting ratio dynamic adjustable adaptor module and a multi-wave band high-dynamic image fusion algorithm, are broken through; the problems about integrated installing and synchronous imaging of a plurality of types of advanced sensors, multi-source image fusion, an enhanced processing algorithm and the like are solved; optical measurement information are acquired to the maximal extent; high-dynamic, high-speed, multi-wave band, high-resolution and high-quality imaging of a target in a target range is realized; the optical measurement level of a test in the target range is effectively improved.