30results about How to "Improve imaging" patented technology

A method and device for multi-directional selective plane illumination microscopy is provided. A detector focal plane is alternately illuminated with at least two counter-propagating, coplanar light sheets, and an image of a specimen cross-section positioned in the focal plane is detected while only one light sheet illuminates the specimen. The wavefront of the illumination beams may be deformed with adaptive optics using feedback from light transmitted through the specimen. Multiple images of the specimen cross-section may be detected at different times and specimen positions and orientations to produce multi-view image stacks which may be processed using image fusion to produce a reconstructed image representation of the specimen. Additionally, the direction of propagation of the alternating light sheets may be pivoted in the focal plane while detecting the image.

A diagnostic imaging system (20) comprising a computer workstation (26) for controlling the imaging system, interfacing with an operator and generating images. A coordinate system (100) is in data communication with the computer workstation. The coordinate system (100) is adapted to describe relative position of components in the diagnostic imaging system (20). A subject support (30) is describable within the coordinate system and an X-ray sub-system (22) is positionable around the subject support (30). Position sensors (44a) are operatively connected to the x-ray sub-system (22) and they provide signals to the workstation (26) indicative of the position of components of the x-ray sub-system (22) within the space represented by the coordinate system. A nuclear camera sub-system (24) is positionable around the subject support (30). Position sensors (44b) are operatively connected to the nuclear camera sub-system (24) and provide signals to the workstation (26) indicative of position of components of the nuclear camera sub-system within the coordinate system. The workstation (100) includes a region of interest position determination function (108) for determining the position within the imaging system of a region of interest (40) in an image generated by the x-ray sub-system (22). The region of interest (40) is precisely targeted using the control console (26) for imaging by the nuclear camera (50).

A back light assembly for a liquid crystal display device includes at least one or more diffusion plate supporting members disposed between a reflection sheet and a diffusion plate, and having a complex structure including an elastic material in contact with the diffusion plate, the diffusion plate supporting member preventing the diffusion plate from dropping down.

A method for improving a stereo image including a left view image and a right view image, comprising: using a data processor to automatically analyze the stereo image to determine an original stereo quality score responsive to relative positions of corresponding points in the left view image and the right view image; specifying a set of one or more candidate modifications to the stereo image; determining revised stereo quality scores based on each of the candidate modifications to the stereo image; selecting a particular candidate modification that produces a revised stereo quality score which indicates a higher quality level than the original stereo quality score; forming an output stereo image corresponding to the selected particular candidate modification; and storing the output stereo image in a processor-accessible memory.

A sensor device for EIT imaging comprises an electrode array for measuring an impedance distribution, with at least one sensor for determining spatial orientation of the electrode array coupled to the electrode array. An EIT imaging instrument is connectable to a sensor for determining spatial orientation of a test person, and optionally in addition connectable to a sensor for gathering information on electrical and/or acoustic activity and/or a sensor for gathering information on dilation. A computing device is connected or integrated for adjusting impedance data based on spatial data, which spatial data describe the spatial orientation of a test subject. An EIT imaging method for measuring an impedance distribution and adjusting said measured impedance distribution comprises measuring impedance distribution by using an impedance distribution measuring device comprising an electrode array, and transforming the measured impedance distribution into EIT images.

A system and method for processing a digital image for rendering are provided. The method includes performing one or more Line Width Control (LWC) operations on digital image data including pixels having pixel values representing gray levels and tag states providing information for specialized rendering techniques thereby changing one or more pixel values resulting in one or more inaccurate pixel tag states, identifying and reassigning one or more inaccurate pixel tag states for improving the rendering of the resultant digital image. An apparatus, such as an image processing system, capable of performing line width control and tag reassignment is also provided.

Disclosed is a system and method for computing ultrasound 3D elasticity images. The method includes acquiring ultrasound RF data in a rest state, in which substantially no pressure is applied to a tissue medium, and acquiring ultrasound data in a stressed state, in which pressure is applied to a tissue medium having an aberration, and computing a measured displacement image from the two RF data sets. The method also includes computing an initial estimated displacement image, which is derived from a 3D elasticity model. The method further includes computing an optimization loop, wherein the initial estimated displacement image is adjusted to converge on the measured displacement image. The optimized estimated displacement image is then segmented and superimposed over the rest state ultrasound image. Further, the original 3D elasticity model is adjusted to match the optimized estimated displacement image.

An electrical impedance scanner having a probe in its contact surface [lacuna] an electrode matrix for detection of the surface distribution of the body current and/or body potentials originating from an opposing electrode which is fitted at some other point on the body of the patient, in which case additional ultrasound transducers (12) for the transmission and reception of ultrasound waves are installed in the contact surface (9) of the probe (3) and are connected to an ultrasound investigation appliance which has a monitor.

The invention relates to a full-focus non-aberration image shooting method and system. With the method and system and based on the conditions and imaging principle of linear space, the lens in camera shooting apparatus can acquire degraded image data for images in camera; then, image partition can divide non-blend single object distance regions of single object distance according to the object distance, mix blend regions in a plurality of object distances, and moreover, perform full-focus non-aberration reconstruction, correction and overlapping into one plane for the non-blend single object distance regions and blend region belts; then, full visual field sharp digital images can be gained as well as object distance of all points in the visual field. Since the method and system utilize and realizes the full-focus non-aberration image shooting, the theoretic definition of the captured images can reach the level of complete consistence with that of plane images through optical system focusing, so that the overall images can provide full visual field and full-focus non-aberration sharp images and gain the maximum information volume.

Embodiments of the invention are a novel splicing detection scheme that detects the spliced images by distinguishing image features that are extracted by exploiting both magnitude and phase information of a given image. The image features include the statistical moments of characteristic functions of wavelet subbands of a test image and a prediction-error image. In addition, the approximation (LL) subband at different levels is individually erased by forcing the wavelet coefficients to zero and the inverse wavelet transform is applied in order to produce reconstructed image with enhanced high frequency components. Further, the moments of the characteristic functions of these reconstructed images provide additional image features. Moreover, the statistics (mean, variance, skewness and kurtosis) of 2-D phase congruency array associated with the reconstructed images provide additional image features for splicing detection. These inputs provide a 120 dimensional image feature vector that includes 96 moment features and 24 phase features.

The invention provides a lithographic method referred to as “dip pen” nanolithography (DPN). DPN utilizes a scanning probe microscope (SPM) tip (e.g., an atomic force microscope (AFM) tip) as a “pen,” a solid-state substrate (e.g., gold) as “paper,” and molecules with a chemical affinity for the solid-state substrate as “ink.” Capillary transport of molecules from the SPM tip to the solid substrate is used in DPN to directly write patterns consisting of a relatively small collection of molecules in submicrometer dimensions, making DPN useful in the fabrication of a variety of microscale and nanoscale devices. The invention also provides substrates patterned by DPN, including submicrometer combinatorial arrays, and kits, devices and software for performing DPN. The invention further provides a method of performing AFM imaging in air. The method comprises coating an AFM tip with a hydrophobic compound, the hydrophobic compound being selected so that AFM imaging performed using the coated AFM tip is improved compared to AFM imaging performed using an uncoated AFM tip. Finally, the invention provides AFM tips coated with the hydrophobic compounds.

A method for improving uptake of contrast agents, such as manganese-based contrast agents, is neuronal imaging of areas such as the spinal cord and cortical spinal tract with magnetic resonance imaging are provided. Electrical stimulation is applied to the subject in order to increase uptake of the contrast agent in to the neuron, resulting in an improved image.

The invention provides a device and a method for angular transformation imaging. Specifically, seismic stack imaging is realized by scanning two parameters, namely, the included angle between downward wave and upward wave and the formation dip. The problem that focused imaging is unsatisfactory due to the fact that the actual seismic wave ray velocity is different from the normal imaging velocity estimated using an elliptic expansion method is eliminated. The imaging effect is improved, and the imaging accuracy is increased. Better and more basic data is provided for subsequent processing.

The embodiment of the invention provides a method and device for calibrating automatic focusing parameter based on a dual-camera system. The method comprises the following steps: acquiring a first image and a second image of a target object based on a first camera and a second camera respectively; acquiring a public field of view of the first camera and the second camera, and respectively counting a first contrast and a second contrast of a pixel area located in the public field of view in the first image and the second image; and adjusting motor positions at a preset focus point, and determining the motor positions of the first camera and the second camera corresponding to the preset focus point according to the first contrast and the second contrast. According to the technical scheme of the embodiment of the invention, by respectively counting the first contrast and the second contrast of the pixel area located in the public field of view in the first image and the second image, and using the common statistics of a dual-camera system image to control dual-camera focusing cooperatively, the definition consistency of the dual-camera system can be realized.

The invention discloses a silicon-based micro-cavity narrow-band near-infrared photoelectric detector. In the structure of the detector, a monocrystalline silicon substrate is used as a base; whereinthe upper surface of the monocrystalline silicon substrate is etched into a silicon micropore array structure; an upper insulating layer is arranged on the silicon micropore array; a graphene film istransferred on the lower surface of the monocrystalline silicon substrate to form a graphene-silicon Schottky heterojunction; a lower insulating layer and a metal reflecting layer are sequentially arranged on the lower surface of the graphene film. The detector prepared by the invention realizes visible light blind narrowband near-infrared response, has the advantages of high response speed, easyintegration and the like, and also has the advantages of simple preparation method, low cost, high stability, strong compatibility and the like.

A photolithography device includes a photomask having multiple structures, the isostructural system extends along the presupposed and the course direction of the photomask; a mean for generating an electromagnetic radiation and introducing the electromagnetic radiation to the photomask, the electromagnetic radiation is at least partially TM-polarized relative to the course direction, so that the TM-polarized electromagnetic radiation has a polarization direction at an angle of 90 DEG with respect to the course direction; a receptacle device for receiving a substrate to be exposed is positioned so that the radiation impinges on the substrate.

The two channel audio surround sound circuit with automatic level control includes a right amplifier, a left amplifier, a right automatic level control and a left automatic level control. A right input is coupled to a positive input of the left amplifier through the right automatic gain control. The right input is coupled to a negative input of the right amplifier and coupled to the output of the right amplifier with one resistor. A left input is coupled to a positive input of the right amplifier through the left automatic gain control. The left input is coupled to a negative input of the left amplifier and coupled to the output of the left amplifier with another resistor.

An imaging system and method are provided that include one or more image sensors, a light source for illuminating the field(s) of view of the image sensor(s), a control system for directing operation of the light source and the image sensor(s) in order to capture image(s) of a ball and an image processor for analyzing the image(s) of the ball to determine at least one parameter associated with movement of the ball through the field(s) of view of the image sensor(s). An imaging system and method of one aspect are capable of determining a plurality of parameters associated with movement of a ball based upon single exposure images captured by a plurality of image, while an imaging system and method of another aspect include an accelerometer and are capable of automatically compensating for changes in orientation of an image sensor from a predefined orientation.

An image processing unit of the disclosure includes an imaging section that acquires a plurality of partial images as a captured image, by imaging a projection screen provided by a projector through division of the projection screen into a plurality of regions to have partially overlapping imaging regions, and an estimation section that performs an operation a plurality of times on a basis of the captured image, the operation being performed to estimate a projection transformation matrix for linking of the partial images adjacent to each other.

The invention discloses a high dynamic range adaptive adjustment method for an infrared thermal imager. The method comprises a first step of parameter acquisition in which a high accuracy area sourceblackbody is used as a standard reference source, a refrigeration-type staring infrared thermal imager is used for normal imaging and a digital video is outputted, the temperature of the high accuracyarea source blackbody is adjustable, and the integration time of the refrigeration-type staring infrared thermal imager can be switched among multiple stages of set values, a second step of data processing in which the relationship between a response and external radiation under different integration time of the refrigeration-type staring infrared thermal imager is firstly built, and then, an integration time switching logic and a threshold are designed, a third step of multi-section two-point calibration in which the area source blackbody is used to offline use a general two-point calibration algorithm to calculate and obtain a correction gain value and an offset value under different integration time stages, and a fourth step of real-time optimization in which the integration time switching logic and the threshold algorithm in the second step form a program in a programmable FPGA hardware development mode and are solidified into an imaging circuit.

The invention discloses an automatic constant-speed push rod propelling device. The automatic constant-speed push rod propelling device comprises a tripod base device, a base device, a bubble leveling device, a motor gear transmission device, a roller clamping and propelling device, a depth encoder, an LED display device and the like, wherein the bubble leveling device, the motor gear transmission device, the roller clamping and propelling device, the depth encoder and the LED display device are fixed on the base, the base device is clamped with the tripod base device. During working, a push rod is inserted between two roller grooves and is tensioned by the tensioning device; a detachable rechargeable battery supplies power, a motor runs at a constant speed to drive the push rod to rise at a constant speed, the motor has overload protection, and if the push rod is clamped, power can be automatically cut off, and rod feeding is stopped; the depth encoder rotates through a roller and outputs a pulse signal, on one hand, the pushing depth of the push rod is directly displayed through a LED display screen, and on the other hand, the depth encoder can be connected to a peeping instrument host through a data cable to cooperatively complete video acquisition, image splicing and other work; and a switch button ensures that equipment is stopped and started at any time, and drill rod connection is facilitated. The equipment has the functions of clamping and fixing the push rod, automatically pushing the push rod at a constant speed, displaying the pushing depth, outputting a depth signal and the like, and can be well matched with and assist other equipment to finish drilling, peeping and the like.

The invention discloses a binary X-ray energy selective device, and relates to the field of X-ray energy selection. The binary X-ray energy selective device is formed by regularly piling up optical units which show binary distribution on transmission of X-rays, and particularly comprises columnar X-ray reflection elements and columnar X-ray absorbing elements. The X-ray reflection elements are ofa hollow structure, the inner walls of the X-ray reflection elements are plated with reflection layers, low-energy X-rays can be transmitted in the X-ray reflection elements and reflected by the innerwall of a channel, and thus an energy selection effect with low pass and high resistance is achieved. The X-ray absorption elements are of a solid structure and are doped with X-ray absorbents and can absorb high-energy X-rays to improve the energy selection efficiency and signal-to-noise ratios for imaging and detection. According to a preparing method of the binary X-ray energy selective device, reflection element monofilaments and absorption element monofilaments are piled up and combined in a sleeve to obtain a multifilament rod; the multifilament rod is subjected to thermal stretching, cutting, thermal fusion, corrosion, metal deposition and the like, and thus the binary X-ray energy selective device is obtained. The binary X-ray energy selective device is easy and convenient to operate, the requirement for equipment is low, the controllability of the preparing process is high, and the precision is high.

A method (26) that tessellates a cortical surface of a brain with a plurality of dipole patches, wherein a quantity of the plurality of dipole patches is variable and dependent upon a head size.

The invention relates to the field of nanoscale biomedical materials, in particular to a nanometer material as well as a preparation method and application thereof. The nanometer material comprises BSA: RE1, an RE2 inner core, a PDA shell layer covering the surfaces of the BSA: RE1 and the RE2 inner core, and FA on the surface of PDA, where RE1 and RE2 are different. The nanometer material has good dispersibility, is easy to prepare, has excellent biocompatibility and safety, can accurately perform multimodal MRI/CT imaging on tumors, and has a good photothermal treatment effect on the tumors.

Magnetic Resonance Imaging (MRI), which is given the acronym ULTRA (Unlimited Trains of Radio Acquisitions), can eliminate magnetic gradient reversals and allow simultaneous MR signal acquisition from the entire object volume in each of a multitude of very small receiver coils arranged in a 3D array around the imaging volume, except for gradient reversals and/or RF pulses for refocusing spins into echoes. This permits a rate of MR signal acquisition that is greatly increased (e.g. 256 times) compared with existing techniques, with a full 3D image constructed in as little as 1 millisecond. Furthermore, noise—both audible and electrical—is substantially reduced. The advantages over conventional MRI include:

• • 1. Clinical imaging can be completed in seconds or less, with good signal-to-noise ratio;
  • 2. Signal-to-noise ratio further increased by reducing or eliminating RF noise due to gradient switching;
  • 3. Real-time functional MRI on millisecond timescales;
  • 4. With single breath holds, high quality imaging of thorax and abdomen.
  • 5. Greatly reduced audible noise and vibration.

A stereoscopic optical system that includes an image member that is located at a position along a center optical axis and that has a first stereoscopic image area on a first side of the optical axis for receipt of a first stereoscopic image thereon and a second, separate stereoscopic image area on a second, separate side of the optical axis for receipt of a second, separate stereoscopic image thereon. The system includes an optical arrangement extending along the center optical axis and includes a roof prism with first and second roof segments. The arrangement is configured to transmit image-forming rays passing through the first roof segment to the first stereoscopic image area along a first optical path through the arrangement and is configured to transmit image-forming rays passing through the second roof segment to the second stereoscopic image area along a second, different optical path through the arrangement.

An imaging apparatus comprises a first detector configured to capture a two-dimensional image; a second detector configured to perform single-line imaging and spatially displaced with respect to the first detector; an objective common to the first detector and the second detector being located at the same optical distance from the first detector and the second detector; a directing arrangement configured to direct optical radiation from the common objective to the first detector and the second detector simultaneously or in turns; and a focus device common to the first detector and the second detector being configured to perform a focusing operation for finding a focusing state, where the two-dimensional image captured by the first detector is in focus, and the second detector being configured to capture a single-line image on the basis of the optical radiation directed thereto with said focusing state.

The invention discloses a camera module and electronic equipment. The camera module comprises: a driving motor; a lens which is arranged in the driving motor; a circuit board which is connected with the driving motor, wherein the circuit board comprises a bearing part and a bending part, the bearing part is provided with a photosensitive chip, the bending part extends to the outer surface of the driving motor from the edge of the bearing part and is connected with the outer surface, and the bending part is located outside the driving motor; and a position detection assembly, wherein at least one part of the position detection assembly is arranged outside the driving motor, and the position detection assembly is electrically connected with the bending part. According to the scheme, the problems of insufficient driving force of the driving motor and poor imaging effect of an existing camera module can be solved.

The invention relates to the technical field of preparation of nano biomedical materials, and particularly relates to a novel NIR-II diagnosis and treatment integrated silicon-carbon nanoprobe and a preparation method thereof. According to the nanoprobe, a surfactant and white carbon black are used as a template agent and a silicon source, a Beta molecular sieve which is uniform in dispersion anduniform in particle size is synthesized, the Beta molecular sieve is used as a template to load ionic liquid, and the nanoprobe with NIR-II fluorescence/ NIR-II photoacoustic dual-mode imaging and NIR-II photothermal therapy is constructed through high-temperature carbonization and template etching.

A signal processing system (SPS) and related method. The system comprises an input interface (IN) for receiving at least two data sets, comprising a first data set and second data set. The first data set is generated by an X-ray detector sub-system (XDS) at a first pixel size and the second data set generated at a second pixel size different from the first pixel size. An estimator (EST) is configured to compute, based on the two data sets, an estimate of a charge sharing impact.