214results about How to "Reduce image distortion" patented technology

Disclosed are methods and systems for optimized deep or superficial deep-brain stimulation using multiple therapeutic modalities impacting one or multiple points in a neural circuit to produce Long-Term Potentiation (LTP) or Long-Term Depression (LTD). Also disclosed are methods for treatment of clinical conditions and obtaining physiological impacts. Also disclosed are: methods and systems for Guided Feedback control of non-invasive deep brain or superficial neuromodulation; patterned neuromodulation, ancillary stimulation, treatment planning, focused shaped or steered ultrasound; methods and systems using intersecting ultrasound beams; non-invasive ultrasound-neuromodulation techniques to control the permeability of the blood-brain barrier; non-invasive neuromodulation of the spinal cord by ultrasound energy; methods and systems for non-invasive neuromodulation using ultrasound for evaluating the feasibility of neuromodulation treatment using non-ultrasound / ultrasound modalities; neuromodulation of the whole head, treatment of multiple conditions, and method and systems for neuromodulation using ultrasound delivered in sessions.

A similar-image detecting part detects similar image regions similar to one another in a plurality of frame images captured by rolling shutter type exposure. A displacement-vector detecting part detects a displacement vector of each of the similar image regions with respect to a reference position in each of the plurality of frame images. An average calculating part calculates an average of displacement vectors in the plurality of frame images. A correcting part shifts a similar image region in one of the plurality of frame images such that the displacement vector of the similar image region becomes the average calculated by the average calculating part.

A plurality of panels include: a display panel; and a protective panel that is disposed outside the display panel, and includes a transparent substrate and an outer hard coating layer and an inner hard coating layer that are respectively formed on an outer surface and an inner surface of the transparent substrate, and each have a hardness greater than a hardness of the transparent substrate. A thickness of the outer hard coating layer is greater than a thickness of the inner hard coating layer, and a stress neutral surface of the flexible display device is configured so that a compressive stress is applied to the inner hard coating layer when the flexible display device is bent.

A defect inspecting apparatus is provided for generating a less distorted test image to reliably observe a surface of a sample for detecting defects thereon. The defect detecting apparatus comprises a primary electron beam source for irradiating a sample, electrostatic lenses for focusing secondary electrons emitted from the surface of the sample irradiated with the primary electron beam, a detector for detecting the secondary electrons, and an image processing unit for processing a signal from the detector. Further, a second electron source may be provided for emitting an electron beam irradiated to the sample, wherein the sample may be irradiated with the electron beam from the second electron source before it is irradiated with the primary electron beam from the first electron source for observing the sample. A device manufacturing method is also provided for inspecting devices under processing with high throughput using the defect detecting apparatus.

The invention discloses a three-dimensional display device of a full-view visual field based on a high-speed projector. The device comprises a high-speed projector, a transmission type directional diffusing screen, a reflector system, a rotation device, a sensor, a rotation synchronous detection module and an upper computer. The high-speed projector projects combined images of the horizontal 360-degree full-view visual fields of three-dimensional objects on the reflector system rotating at high speed, and the images are projected on the fixed cylindrical transmission type directional diffusing screen after the images realize the turning of light paths by the reflector system. The transmission type directional diffusing screen can control the divergence angle of outgoing light, the left eye and the right eye of an observer see images with different visual angles, and the three-dimensional display of the three-dimensional objects on the full-view visual field is realized. The rotation synchronous detection module detects a rotation signal, is communicated with the upper computer and ensures that the positions of the combined images and the position of the rotating reflector system are synchronous. The invention can realize that both eyes of the observer see images with binocular parallaxes in different positions, thereby realizing the three-dimensional display.

The invention discloses a method for locally amplifying a picture played by a mobile TV and a mobile terminal with mobile TV function. The method comprises the following steps that: the mobile terminal plays the mobile TV, and after local amplification display function of the mobile terminal is started, a display area to be amplified is determined in a TV playing area on a display screen according to a user instruction; and according to the set display area after amplification, the picture played in the display area to be amplified is amplified to the display area after the amplification, and is played in a mode of covering the prior picture. The mobile terminal comprises a mobile TV processing module, a multimedia processing module, a man-machine interactive module and a display module. The method realizes the local amplification of the picture played by the mobile TV, so that a user can capture local details of the played picture.

The present invention relates generally to an illumination device used in dermoscopy. More particularly, the invention comprises an improved apparatus for enhanced imaging and illumination of the skin for medical examination and treatment. An array of LEDs encircle a magnifying lens assembly. One set of surrounding LEDs provides cross-polarized white light to aid in canceling the reflected light from the skin and creating less glare. Another set of surrounding LEDs provides non-polarized white light for traditional immersion fluid dermoscopy or for non-polarized viewing of the skin. A third set of surrounding LEDs provides polarized colored light, wherein the wavelength color is selected at a color wavelength that maximizes the viewing of skin pigment regions which is important for early detection of skin cancers and other skin diseases. In an embodiment of the invention the colored LEDs comprise orange light at a wavelength of 588 nm. The present invention also discloses that the range of colored LEDs in the orange portion of the visible spectrum, namely at 581 nm to 600 nm wavelengths.

An image processing method and apparatus are provided. The image processing apparatus includes an interface configured to output an input frame and metadata including type information and subtype information; and a rendering unit configured to: determine a type of a polyhedron included in an output frame based on the type information, determine attributes of arrangement of a plurality of areas included in the input frame based on the subtype information, and render the output frame by mapping each of the plurality of areas to corresponding faces of the polyhedron, based on the attributes of arrangement of the plurality of areas.

A rotary stage (10) for use in optical projection tomography includes a stepper motor (42) with a rotatable vertical shaft (44) the lower end of which carries a specimen (28) to be imaged so that the specimen is rotated about a substantially vertical axis. The stepper motor (42) is mounted on a table (34) the position of which is accurately adjustable in tilt and in vertical position to ensure that the rotational axis of the specimen is perpendicular to the optical axis (29). The specimen (28) rotates within a stationary chamber (26) and the rotary stage is used with a microscope which provides a three-dimensional image of the specimen.

The invention discloses an electric energy meter sample appearance and PCB element detection method, and belongs to the technical field of electric energy meter image management and application. The method comprises the following steps: S1, establishing a standard element characteristic database, and obtaining front-surface, side-surface and reverse-surface to-be-detected images of a PCB; S2, performing detection preprocessing, establishing a background difference, and carrying out such processing as correcting, splicing and segmenting on detected images; S3, carrying out detection area analyzing on the processed images, and determining an element area or a solder point and circuit area, or a character and other area exists on the PCB; S4, carrying out image characteristic matching, in case of image matching success, performing element identification processing, in case of characteristic matching failure, determining whether image detection goes beyond a boundary, if not, performing local area search on patterns, and returning and continuously executing the element area detection step; and S5, generating a detection form. The electric energy meter detection method provided by the invention is novel in design, quite low in cost, high in accuracy, high in detection efficiency and good in detection effect, thereby facilitating popularization and application.

An apparatus and method for estimating motion are provided. An exemplary motion estimating apparatus comprises a background representative calculator for calculating a background representative vector representing background motion of a frame to be interpolated on the basis of motion vectors of the frame to be interpolated, a block motion calculator for calculating motion vectors for respective blocks of the frame to be interpolated on the basis of a current frame and a previous frame, for providing the motion vectors to the background representative calculator, and for calculating background motion vectors for the respective blocks through local search on the basis of the background representative vector output from the background representative calculator, a motion error detector for determining whether each block is in a text area on the basis of the motion vectors and the background motion vectors output from the block motion calculator and a motion correcting unit for determining whether each block in the text area is in a boundary area on the basis of motion vectors of peripheral blocks of each block when each block is in the text area, and for correcting a motion vector of each block in the boundary area when each block in the text area is in the boundary area.

A full-eye optical coherence tomography imager comprises a frequency sweeping light source, an optical fiber polarizer, a first optical circulator, a second optical circulator, a first broadband polarization splitting prism, a second broadband polarization splitting prism, an ocular anterior segment scanning imaging light path, an eye ground scanning imaging light path, a third broadband polarization splitting prism, two reference mirrors, a fourth broadband polarization splitting prism, a fifth broadband polarization splitting prism, a second polarized light protecting coupler, a third polarized light protecting coupler, a first balance detector, a second balance detector, a function generation card, a data acquisition card, a computer and the like, wherein the first broadband polarization splitting prism, the second broadband polarization splitting prism, the ocular anterior segment scanning imaging light path and the eye ground scanning imaging light path are arranged in a sample arm; the third broadband polarization splitting prism and the two reference mirrors are arranged in a reference arm; the fourth broadband polarization splitting prism, the fifth broadband polarization splitting prism, the second polarized light protecting coupler, the third polarized light protecting coupler, the first balance detector and the second balance detector are arranged at a detecting end. The imager is based on a frequency sweeping optical coherence tomography technology, a component p and a component s of a polarized beam are used for conducting imaging on an eye ground and an ocular anterior segment respectively, and thus three-dimensional high resolution real-time imaging can be conducted on an full eye structure at the same time on the same system without any device for conversion. By means of the full-eye optical coherence tomography imager, optical path length and dispersion matching and scan setting can respectively be carried out on ocular anterior segment imaging and eye ground imaging, and thus the optimal imaging quality and the view field size of ocular anterior segment imaging and eye ground imaging can be obtained at the same time.

A system and methods for high-speed functional magnetic resonance imaging using multi-slab echo-volumar imaging (EVI), specifically a combination of multi-slab excitation and single-shot 3D encoding with parallel imaging to reduce geometrical image distortion and blurring, and to increase blood oxygenation level-dependent (BOLD) sensitivity compared to conventional echo-planar imaging (EPI).

A method for magnetic resonance imaging is provided that includes using a magnetic resonance imaging system to excite a field of view (FOV) for a target being imaged, using an excitation plan to limit the excited FOV to a relatively narrow band of magnetization, exciting multiple bands of magnetization simultaneously, applying phase encoding along a shortest FOV dimension, acquiring a signal from said simultaneously excited bands of magnetization, and reconstructing and outputting a target image from the acquired signal.

In a projection type image display apparatus, for enlarging an image on a image display apparatus 1 by means of a projection lens 2, thereby projecting the enlarged image onto a screen 6, obliquely, being inclined thereto, between the projection lens 2 and a rear-surface mirror 5, there are disposed free shaped surface mirrors 3 and 4, each having a free shaped surface for compensating a trapezoidal distortion due to oblique projection of the enlarged image. The surface configuration of the free shaped surface mirror is so shaped as to satisfy a following equation: |L1−L2|>1.4·Dv if assuming that a distance for a light beam of an upper end of the enlarged image to reach the screen after being reflected upon a free shaped surface is “L1”, a distance for a light beam of a lower end of the enlarged image to reach the screen after being reflected upon the free shaped surface is “L2”, and a distance from an upper end of an image on the screen to a lower end thereof is “Dv”.

An organic light emitting diode (OLED) display device includes: a display panel including a first through (2M)-th row pixel blocks; a data driver including a first data driving unit to provide N odd row data signals to (2K−1)-th row pixel blocks and a second data driving unit to provide N even row data signals to (2K)-th row pixel blocks; a scan driver including a first scan driving unit configured to provide (2K−1)-th scan signals to (2K−1)-th row pixel blocks and a second scan driving unit configured to provide (2K)-th scan signals to (2K)-th row pixel blocks. The first frame period includes an activation period and a vertical blank period. The first scan driving unit is configured to activate the (2K−1)-th scan signals sequentially in pulse form in an activation period.

The method includes steps: carrying out subprocess of transforming subblocks for each block inside each macro group respectively; sorting process is carried out for all subblocks after transform process inside each macro group; sending party sends encoded transformation coefficients of header information of each macro group, header information of macro block and each class of sub block group; receiving party carries out decoding proves for corrected received code stream respectively in order to recover image information of corresponding sub block; base on image information of relevant sub blocks, the receiving party carries out image information process in insertion approach algorithm for each sub block of containing error code. The invention is capable of carrying out process of anti error code more precisely for stream of error code caused by quality of transmission channel. Features are: lowering visual distortion of video image and raising effect of video communication.

There is to provide a mask including a transparent member at a side of a surface of a base, a pattern being formed on the surface, and a correction part for correcting a change in an optical path of the transparent member.

A fixed-focus lens capable of imaging a light valve disposed at a reduced side onto a magnified side is provided. The fixed-focus lens includes a first lens group, a second lens group, and a free form reflective mirror. The first lens group is disposed in the light path between the reduced side and the magnified side. The second lens group is disposed in the light path between the first lens group and the magnified side and includes a first free form lens. The free form reflective mirror is disposed in the light path between the second lens group and the magnified side. An imaging surface imaged from the light valve by the fixed-focus lens is a curved surface. An imaging system using the fixed-focus lens is also provided.

The present invention relates to a super wide angle optical lens system reduced in size and weight and increased in definition for various electronic devices and vehicles while capable of obtaining satisfactory optical performance, an appropriate wide field angle and exhibiting high image quality and broad image data, thereby reducing distortion of an image.

The invention relates to the technical field of ultrasonic phased array nondestructive testing and in particular relates to a method and a system for receiving the dynamic focusing compensation through a phased array. A transducer group receives echo data of each transducer unit; an analog / digital (A / D) conversion circuit converts the echo data into an echo data digital electric signal; a dynamic focusing compensation circuit inserts initial focusing delay into the echo data digital electric signal and inserts unit time delay into the echo data digital electric signal at a preset position after a length data digital electric signal which corresponds to the compensation delay is started so as to obtain an echo data digital electric signal subjected to the dynamic focusing compensation; a signal superposition circuit performs data superposition on the echo data digital electric signal subjected to the dynamic focusing compensation. The initial focusing delay and the unit time delay at a preset position are inserted into the echo data digital electric signal, so that the time delay of the echo data digital electric signal focused at different depths can be dynamically compensated, the imaging distortion at each depth is reduced after the compensation, and the image quality is improved.

The invention provides a magnetic resonance imaging device and a megnetic resonance imaging method. According to one embodiment, an MRI device (20) includes a first collecting section, a second collecting section, and a correcting section (100). The first collecting section and the second collecting section generate a plurality of echo signals by executing an EPI echo-signal collecting sequence which involves the application of a phase-encoding-direction gradient magnetic field, and collect the echo signals respectively as first and second template data. The second collecting section collects the second template data after the collection of the first template data in accordance with a sequence in which the timing for starting the application of a read-out-direction gradient magnetic field is shifted from that at the time of collecting the first template data. The correcting section (100) corrects phase errors contained in the echo signals by using the first and second template data.

Disclosed is a three-dimensional ultrasound image method and apparatus for reducing distortions of ultrasound images by precisely estimating a distance between consecutive two-dimensional frames obtained by a manual scanning. The apparatus comprises a transducer array for transmitting ultrasound signals to a target object and receiving echo signals reflected from the target object; a receive-focusing unit for receive-focusing the echo signals to generate a plurality of consecutive two-dimensional ultrasound image frames; a converter for converting the consecutive two-dimensional ultrasound image frames into a three-dimensional ultrasound image; and a display for displaying the three-dimensional ultrasound image. The method comprises the steps of, a) transmitting and receiving ultrasound signals; b) receive-focusing echo signals to generate a plurality of consecutive two-dimensional ultrasound image frames; c) converting the consecutive two-dimensional ultrasound image frames into a three-dimensional ultrasound image; and d) displaying the three-dimensional ultrasound image.

An image pickup apparatus may include a wiring board; a frame member having a framework-like shape and disposed on the wiring board, an image pickup element disposed on the inner side of the frame member on the wiring board, and a transparent cover disposed on the frame member. The wiring board and the frame member may be attached to each other by thermosetting adhesive. The frame member may be made of a material which has a coefficient of thermal expansion lower than that of the wiring board and has a rigidity higher than that of the wiring board.

Representative methods and systems are disclosed for reducing image distortion or increasing spatial resolution in echo planar magnetic resonance imaging. In representative embodiments, a targeted field of view (FOV) image is divided into segments, with each segment having a predetermined overlap region with an adjacent segment, such as in a phase-encoding direction. Image data is acquired for each segment, sequentially or simultaneously, using a reduced phase-encoding FOV with a 2D radiofrequency (RF) excitation pulse, and rotated and scaled magnetic field gradients. The 2D RF excitation pulse may also be modulated, such as onto a plurality of different carrier frequencies, for simultaneous acquisition of multiple segments in the same imaging plane. Using the spatial response of the 2D RF excitation pulse, the acquired image data for each segment of the plurality of segments is combined to generate a combined magnetic resonance image having the targeted field of view.

The invention discloses an integrated navigation method and navigation system of a combined harvester based on Beidou and vision. A Beidou device analyzes the relationship between a positioning pointand a planned path to obtain a real-time deflection state of the harvester; a vision sensor collects an image comprising a harvester cutting platform boundary and an operation boundary, extracts and fits two boundary lines through image processing, and analyzes the relationship between the two lines to obtain the real-time deflection state of the harvester; the validity of horizontal position deviation and heading angle deviation information obtained by Beidou and vision is judged through a set threshold range, and statistics is performed on a parameter adjustment threshold range according tothe valid information; the optimal estimate of the valid deviation information is obtained by the Kalman filtering algorithm, and then is trained and predicted by using a BP neural network; and the BPneural network predicts an output optimal swath width for adjusting the visual lateral position deviation, predicts an output expected turning angle of the harvester, converts the expected turning angle into a control signal by a control unit, and adjusts a steering mechanism of the harvester to realize automatic driving.

A wide-angle lens includes an object-side lens group 200, an image-forming side lens group 400, and at least one converging lens 300 arranged between the object-side lens group 200 and the image-forming side lens group 400. The object-side lens group 200 includes at least one concave lens 210 including a convex light incident surface 211 on the object side. The light incident surface 211 of the concave lens 210 is a convex aspheric surface 211a whose curvature increases from a portion adjacent to the central optical axis toward the periphery of the lens. The concave lens further includes a light emitting surface 212 which is a substantially concave spherical surface.

A similar-image detecting part detects similar image regions similar to one another in a plurality of frame images captured by rolling shutter type exposure. A displacement-vector detecting part detects a displacement vector of each of the similar image regions with respect to a reference position in each of the plurality of frame images. An average calculating part calculates an average of displacement vectors in the plurality of frame images. A correcting part shifts a similar image region in one of the plurality of frame images such that the displacement vector of the similar image region becomes the average calculated by the average calculating part.

An exposure apparatus and method in which an image is formed on a recording medium mounted on a recording stage by irradiating a light beam based on image data from a recording head while the recording head and the recording stage are relatively moved, in the exposure apparatus and method, storing in advance, in a storage section, shift-amount data of a detected displacement of an image-form position with respect to a stage surface of the recording stage in a direction intersecting a direction in which the recording stage moves, which displacement occurs accompanied by movement of the recording stage; carrying out shifting for each of pixels of an image formed by the image data based on the shift-amount data stored in the storage section; and controlling exposure for the recording medium based on image data of the shifted image, is provided to reduce distortion of the image.