213results 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.

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.

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 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.

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.

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.