32results about How to "Shorten Image Acquisition Time" patented technology

An optical code reading system and method are provided for reading and decoding an optical code. The system includes a plurality of light sources, a color image sensor, a processor and a decoder. Each light source produces a unique wavelength/color of light to illuminate the optical code, such as a direct mark optical code. The image sensor detects the reflected light from the optical code and generates an integrated multi-colored image. The processor separates the integrated image into individual color channels, where each color channel includes data representative of the imaged optical code in one color. The processor analyzes the contrast for each color channel and determines which color channel has the optimum contrast. The data corresponding to the color channel having the optimum contrast is then decoded by a decoder.

A spin locked balanced steady-state free precession (slSSFP) pulse sequence combines a balanced gradient echo acquisition with an off-resonance spin lock pulse for fast MRI. The transient and steady-state magnetization trajectory is solved numerically using the Bloch equations and is shown to be similar to balanced steady-state free precession (bSSFP) for a range of T2/T1 and flip angles, although the slSSFP steady-state could be maintained with considerably lower RF power. In both simulations and brain scans performed at 7 T, slSSFP is shown to exhibit similar contrast and SNR efficiency to bSSFP, but with significantly lower power.

According to one aspect of the invention, a wide-field microscope includes a stage configured to hold a specimen having a fluorescent material therein, and a multi-photon excitation light source configured to produce a substantially parallel beam of excitation light having a single photon energy less than an absorption energy required for single photon excitation of the fluorescent material. An infinity corrected objective is optically coupled to the multi-photon excitation light source and configured to focus the substantially parallel beam of excitation light onto the specimen such that multi-photon excitation of the fluorescent material simultaneously occurs over a predetermined area of the specimen. A focus lens is configured to focus emission light emitted from the predetermined area of the specimen onto at least two pixels of an image detector simultaneously. A focus lens is configured to focus emission light emitted from the predetermined area of the specimen onto an image plane, such that the image plane can be viewed through a binocular eyepiece or an imaging array detector.

The present invention provides an optical image acquisition apparatus, while controlling the amount of light within the range prescribed by safety standards, etc., decreasing in image acquisition time by using a simple configuration, as well as securing a high resolution of an optical image by using adaptive optics.

Provided is an optical image acquisition apparatus having adaptive optics, the adaptive optics includes: a wavefront aberration detector for detecting a wavefront aberration in a reflected or backscattered beams generated when a plurality of beams are scanned on a surface, and a single wavefront aberration corrector for correcting a wavefront aberration in each of the plurality of beams, based on the wavefront aberration, and the plurality of beams enter the single wavefront aberration corrector with different incident angles and are overlapped on each other, and the wavefront aberration in each of the plurality of beams is corrected.

A method of photoluminence (PL) imaging of a series of silicon wafers, the method including the step of: utilizing incident illumination of a wavelength greater than 808 nm. The present invention further provides a method of analysing silicon semiconductor material utilising various illumination, camera and filter combinations. In some embodiments the PL response is captured by a MOSIR camera. In another embodiment a camera is used to capture the entire PL response and a long pass filter is applied to block a portion of the signal reaching the camera/detector.

A scan chain latch circuit, a method of operating a latch circuit in a scan chain, and a computer-readable medium having stored thereon a data structure defining a scan chain latch circuit for instantiation on a semiconductor die are disclosed. In an embodiment, the scan chain latch circuit comprises a first latch for holding one data value, a second latch for holding another data value, and a multiplexor. The one data value is applied to a first data input of the multiplexor and the another data value is applied to a second data input of the multiplexor. An alternating clock signal is applied to a select input of the multiplexor to control the output of the multiplexor, wherein the output of the multiplexor toggles between the two data values held in the two latches at a defined frequency.

In order to solve the technical problems that according to an existing endoscopy imaging technology, the size of a probe is large, the application requirement cannot be met, and when focusing spot scanning imaging is adopted, due to point-by-point scanning, repeated iterative computation and repeated access peripheral, the time spent in forming batched focusing spots is long, the invention provides an endoscopy imaging system and method based on single multimode fiber. The system comprises an illumination system, a light field measuring system and a computer processing system; the illuminationsystem comprises a laser, an optical attenuator, a collimating and beam expander and a first line polarizing film which are arranged in sequence; the light field measuring system comprises a beam splitter, a reference arm, an objective light arm, a second line polarizing film and a camera; the reference arm is composed of an optical phase shifter; the objective light arm comprises a focusing objective lens and the single multimode fiber; the computer processing system is used for controlling an optical phase shifter and a camera, an interference light field is demodulated through the phase shifting interference method, an objective light composite light wave electric field is obtained, and imaging is performed.

An optical projection tomography system comprises a support arranged to support an object (63) and to rotate the object between a plurality of orientations, a first imaging system (64) arranged to image the object from a first direction to form a first image, and a second imaging system arranged to image the object from a second direction to form a second image, data acquisition means (66, 67) arranged to acquire image data from the first and second images for each of the orientations and processing means arranged to process the image data to generate an image data set.

This invention provides a source of x-ray flux in which x-rays are produced by e-beams impacting the inner walls of holes or channels formed in a metal anode such that most of the electrons reaching the channel impact an upper portion of said channel. A portion of the electrons from this primary impact will generate x-rays. Most of the electrons scatter but they continue to ricochet down the channel, most of them generating x-rays, until the beam is spent. A single channel source of high power efficiency and high power level x-rays may be made in this way, or the source can be of an array of such channels, to produce parallel collimated flux beams of x-rays.

An image forming apparatus including an adaptive optics realizing a reduction in image acquisition time and high definition without significantly increasing a light amount of a beam for scanning is provided, the apparatus including an adaptive optics scanning a plurality of areas in an object with a deflector using a measuring beam including a plurality of beams and corrects reflected and/or scattered beam from the object to acquire an image of the object, including: one or more wavefront aberration detecting device detecting wavefront aberration in each of the plurality of beams caused by the object when scanned by the measuring beam including the plurality of beams; and a single wavefront aberration correcting device correcting the wavefront aberration of each of the plurality of beams according to the detected wavefront aberration, the single wavefront aberration correcting device arranged in a position optically conjugate with the deflector.

The invention relates to a method for improving the quality of an energy spectrum face distribution image of an inorganic non-metal material sample. The method comprises the following steps: (1) mounting a sample; (2) sticking a conductive adhesive; (3) electrically freezing the energy spectrum face distribution image of a collection element of an X-ray energy spectrum detector by using silicon drifting. According to an image acquisition method, the gray difference of a chemical constitution close phase in an element energy spectrum image can be increased, phenomena such as grain inner pixel lacking, grain edge blurring and image whole drifting are remitted, and the image acquisition time is shortened. The method is good for reducing the sample preparing difficulty and shortening time needed by an electric mirror observation condition optimizing test; during a shooting process, liquid nitrogen is not needed for cooling.

Methods and apparatuses are disclosed whereby structured illumination microscopy (SIM) is applied to a scanning microscope, such as a confocal laser scanning microscope or sample scanning microscope, in order to improve spatial resolution. Particular aspects of the disclosure relate to the discovery of important advances in the ability to (i) increase light throughput to the sample, thereby increasing the signal/noise ratio and/or decreasing exposure time, as well as (ii) decrease the number of raw images to be processed, thereby decreasing image acquisition time. Both effects give rise to significant improvements in overall performance, to the benefit of users of scanning microscopy.

According to the present invention, accurate T2* and vascular images are concurrently acquired by acquiring a T2* image without a flow compensation and a T2* image with a flow compensation and subtracting the two images to reconstitute an image showing the flow phenomenon. Furthermore, an accurate T2* image can be acquired by using the readout gradient without the flow compensation and also the accurate T2* and vascular images can be concurrently acquired. The clinical judgment for blood flow rate of the blood vessel and the clinical judgment for acute stroke can be concurrently made, and so the present invention can be widely utilized in clinical practice.