9results about How to "Guaranteed resolution" patented technology

The utility model discloses an annular array light source for microbiological detection, which comprises a substrate, a plurality of integrated light sources are arranged on the end face of one side of the substrate along annular paths with different diameters, and the integrated light sources can emit different wavelength ranges and different polychromatic lights; a transparent annular cover is arranged outside the integrated light source along an annular path, and a soft light TIR lens is arranged at the position, corresponding to the integrated light source, of the transparent annular cover. A water cooling disc is arranged on the end face of the other side of the substrate, and a heat transfer piece is arranged around the integrated light source and connected with the water cooling disc. According to the utility model, organisms in sewage are uniformly irradiated at a specific light beam angle in an annular arrangement manner, and the working temperature of the light sources which are densely arranged can be effectively reduced.

The invention relates to the technical field of ultrafast optical and time-resolved spectral measurement, in particular to a pumping spectrum detection device with adjustable chirp and adjustable time delay. Comprising an ultrafast laser source, two grating dispersion units, a distance adjusting device, a laser climbing mirror, a beam splitting and energy control device, an independent delay line, a focusing lens, a light beam terminator, a sample module, a collimation attenuation module, a spectrum detection module and a synchronous control module. The method has the beneficial effects of chirp-delay decoupling, wide-range linear dispersion, stable space-time coincidence, multi-sample compatibility, automation, high signal noise, and parameter calibration and reproducibility.

The application discloses a kind of based on digital human segmentation MRI image splicing and fusion method, comprising: the MRI data of different parts of human body obtained by nuclear magnetic resonance scanning is first registered after being preprocessed such as noise reduction, using the resolution, orientation etc. of reference image and floating image after registration, further realize the transformation of floating image between image coordinate system and world coordinate system, simultaneously based on trilinear interpolation interpolation and operation in the above spatial transformation process.The application realizes the seamless fusion of the three-dimensional image to be spliced in high and low frequency direction, effectively utilizes image high and low frequency component information.The application not only simplifies the two-stage image splicing and fusion process of traditional splicing method, i.e.fusing overlapping area first and then splicing non-overlapping area, and greatly improves the overall splicing and fusion accuracy of segmented MRI data.

The application discloses a kind of image velocimetry system for blood vessel, the method for blood vessel pathological change risk assessment, blood vessel detection device-nanoparticle composition and its application, it is related to image processing field, the system includes: targeted visualization nanoparticle administration unit, double-ring scanning optical probe, CMOS imaging device, image acquisition and double-domain correlation processing module, coupling mechanics parameter calculation module.The application utilizes double-ring scanning optical probe to combine external CMOS imaging device, realizes the efficient transceiving and transmission of nanoparticle fluorescence signal;By performing digital image correlation and microscopic particle image velocimetry on image sequence, finally obtain the time synchronization data of blood vessel wall deformation, near-wall blood flow velocity and shear stress and other mechanical parameters, and based on this, the assessment and early warning of blood vessel pathological change risk are carried out.

The application relates to the technical field of semiconductor packaging, and discloses a packaging structure for combining and packaging an LED and an IC, which comprises an IC chip and a Micro LED chip vertically combined above the front surface of the IC chip; the IC chip is internally integrated with a driving circuit and has metal welding spots distributed on the top surface and matched with the electrodes of the Micro LED chip; the IC chip and the Micro LED chip form a three-dimensional stacked integrated structure through a metal bonding layer; the physical projection of the Micro LED chip is located in the projection range of the IC chip; the IC chip is provided with a conductive mechanism for leading out signals, and the conductive mechanism comprises surface bumps distributed on the edges of the front surface, vertical conductive columns penetrating the interior, back welding balls on the back surface, back cut positions in the form of slopes on the edges, and a metal coating layer covering the back cut positions and connecting the front circuit and the back welding balls. The application realizes miniaturization of the packaging size and improves display transmittance.

The application discloses an image reconstruction method, device and equipment, relates to the technical field of medical images, and can adaptively adjust a sampling angle according to the total eccentricity of a to-be-detected object, guarantees that enough effective projection data is collected for image reconstruction, and thus the purposes of keeping image resolution, reducing artifacts and improving image quality are achieved. The method comprises the following steps: acquiring the total eccentricity of the to-be-detected object; determining a target sampling visual angle of the to-be-detected object according to a sampling visual angle corresponding to the total eccentricity of the to-be-detected object in a preset curve, wherein the preset curve records a mapping relationship formed by the to-be-detected object in different total eccentricities and sampling visual angles; scanning the to-be-detected object according to the target sampling visual angle, and reconstructing a tomographic image of the to-be-detected object by using the scanned projection data.

This invention discloses a deep learning-based ultrasound radio frequency data filtering imaging method. The method first proposes a novel ultrasound radio frequency data filtering algorithm for ultrasound simulation imaging—an echo signal selection algorithm based on scattering points. Then, it proposes a deep neural network to learn the target echo signal selection process based on scattering points for ultrasound radio frequency data. The trained deep neural network can effectively suppress interference signals in the radio frequency data, thereby improving ultrasound imaging quality. This data filtering deep neural network can be integrated into a time-delayed beamforming imaging framework to form a novel ultrasound imaging method, namely, a deep learning-based ultrasound radio frequency data filtering imaging method. Compared with time-delayed beamforming methods, this invention can improve the contrast and contrast-to-noise ratio of ultrasound images, exhibiting excellent imaging quality in real-world human imaging examples.

The present disclosure relates to the technical field of display, and in particular to a display panel, which comprises a first substrate, a light shielding structure, an electrophoretic structure and a plurality of electrode pairs. The light shielding structure is formed on the first substrate and surrounds to form a plurality of array-arranged containing cavities. A part of the electrophoretic structure is located in each containing cavity, and another part is formed on the side of the light shielding structure away from the first substrate. The electrophoretic structure comprises light-reflecting particles and light-absorbing particles with opposite charges. The electrode pairs correspond to the containing cavities one by one and are configured to apply a plurality of electric fields to the electrophoretic structure. Under a first electric field, the light-reflecting particles move to the side of the light-absorbing particles away from the first substrate, and the light-reflecting particles can shield the side of the light shielding structure away from the first substrate; under a second electric field, the light-reflecting particles move into the containing cavities and are located on the side of the light-absorbing particles away from the first substrate. The display panel in the present disclosure can realize dynamic display of wide and narrow viewing angle switching while improving the transmittance, resolution and display brightness.

An optical fingerprint sensing module (300), a display panel (210) and an electronic device (200). The optical fingerprint sensing module (300) comprises: a pixel circuit array comprising a plurality of pixel circuits. The pixel circuit comprises: a light sensing unit (131) and a switching unit (132) connected with the light sensing unit (131), the light sensing unit (131) is used for converting a light signal into an electric signal, the light sensing unit (131) comprises a light receiving surface (302) for receiving light, the switching unit (132) is arranged on a side of the light sensing unit (131) away from the light receiving surface (302), and the light sensing unit (131) outputs the electric signal through the switching unit (132). By arranging the switching unit (132) on the side of the light sensing unit (131) away from the light receiving surface (302), the switching unit (132) provides a space for the light sensing unit (131), so that the size of the light sensing unit (131) can be increased under the premise of pixel resolution, the area of the light receiving surface (302) of the light sensing unit (131) is increased, and then the optical fingerprint sensing module (300) can accurately detect a fingerprint.