14results about How to "Achieve imaging" patented technology

This invention provides an endoscope device and surgical system, comprising: a fiber Bragg grating unit configured with a grating, a shape sensing unit, an imaging unit, and a probe; the fiber Bragg grating unit is configured to receive a first optical signal and a second optical signal through the light-incident side; to allow the second optical signal to pass through the grating and reach the target side, and then reach the probe through the target side; and to receive return light returned by the probe through the target side, and guide the return light to the light-out side; the probe is configured to guide part or all of the second optical signal incident on the probe to the imaging object, receive the return light returned from the imaging object, and send the return light to the target side; the imaging unit is configured to perform imaging based on the return light to obtain an imaging image of the imaging object.

The invention provides an AR micro-projection color light machine and near-to-eye display equipment, and relates to the technical field of AR. The optical machine comprises an imaging lens group which comprises a diaphragm, a first lens, a second lens, a third lens and three fourth lenses which are sequentially arranged from an object side to an image side along an optical axis; the color combination prism is an X-cube color combination prism, is arranged between the third lens and the fourth lens, and is used for combining the three-color light path into one color light path for outputting; the image source is arranged on the image side of the fourth lens and used for providing an electronic image; wherein the first lens is a positive lens, the second lens is a positive lens, the third lens is a negative lens, the fourth lens is a positive lens, and the second lens and the third lens are cemented lenses. By constructing an optical framework of the lens and the X-cube color combination prism and through cooperation of all optical elements, full-color display can be achieved, and meanwhile the multiple aspects of performance such as the small size, the large field angle, the excellent optical effect and the high definition are taken into account.

This application provides a method, system, device, and storage medium for realizing a depth-domain imaging surface. The method includes applying a total correction to preprocessed time-domain data to correct a fixed surface, obtaining a final reference surface; secondly, using the travel time information of the first arrival wave of an earthquake to invert the near-surface velocity structure, extracting the velocity and thickness of the weathering layer from the tomographic static correction, and calculating the time correction. This invention, through time-domain tomographic static correction, corrects the weathering layer data to the water table, effectively avoiding the difficulty of near-surface velocity modeling. It quickly and effectively achieves depth-domain modeling and imaging. By utilizing the concept of time-domain static correction, seismic data is corrected to the water table, thus avoiding near-surface velocity modeling and directly starting mid-to-deep modeling from the water table. This shortens the processing cycle and improves velocity accuracy, which is beneficial for seismic imaging.

The present application relates to the field of near-field wavelet processing imaging technology, and particularly discloses a kind of multi-source air gun excited passive source near-field wavelet processing imaging method and device, the method comprises: through near-field detector, near-field wavelet data is collected, and near-field wavelet data is matched with navigation positioning data, the loading of observation system is completed. Again using the difference of each channel type of active source and passive source, passive source data is extracted. Again according to the development characteristics of near-field wavelet noise, key noise such as bubble direct wave is suppressed, the signal-to-noise ratio of data is improved and seabed shallow layer image is obtained, so as to fill the blank of domestic near-field wavelet imaging field, promote the development of near-field wavelet imaging processing technology, and lay a foundation for the standardization and standardization of multi-source near-field wavelet data processing flow.

The application discloses a single-exposure compressed ultrafast coherent modulation imaging device. By combining coherent modulation imaging and compressed ultrafast imaging technology, a sample to be measured is illuminated by coherent light, after the sample diffracts the light wave, the phase modulation of a random phase modulation plate is carried out, the integral intensity distribution of the modulated wave front is recorded by deflection on a detection plane by using a slit fully opened stripe camera, a single compressed diffraction pattern is obtained, a spatial two-dimensional to space-time three-dimensional image reconstruction algorithm based on a plug-and-play framework and a depth image priori is developed, and data recovery is carried out on the collected image by using the algorithm. Compared with traditional ultrafast optical imaging and phase imaging technology, the application can quantitatively obtain complete intensity and phase information of a transient scene in a single measurement process, has the characteristics of picosecond time resolution and real-time quantitative intensity-phase imaging capacity in single-exposure phase imaging, and can be widely applied to various ultrafast phenomena requiring phase observation.

This invention relates to a bistatic seabed acoustic imaging method based on pixel statistical distribution weighting. Utilizing the characteristic that the positions of real seabed features in the imaging image are fixed while spurious features vary with the position of the receiving array, a statistical method is used to obtain the pixel distribution characteristics of the acoustic image. The statistical distribution probability of each pixel is then used as the pixel weight to perform weighted stitching of multiple acoustic images. The method includes: bistatic seabed scattering signal modeling and simulation, received signal acoustic imaging processing, pixel statistical distribution processing, and weighted stitching and fusion of multiple acoustic images. Compared with conventional bistatic acoustic imaging methods, the method proposed in this invention can effectively reduce spurious features and random noise caused by the inherent characteristics of the one-dimensional horizontal linear array in the acoustic image, highlighting real features in the acoustic image and achieving imaging and discrimination of significant seabed features.

The application relates to the technical field of biomaterials, in particular to a mitochondrion-lysosome dual-color dual-targeting fluorescent probe, a preparation method and biological imaging application thereof. The chemical structural formula of the mitochondrion-lysosome dual-color dual-targeting fluorescent probe is as follows: the mitochondrion-lysosome dual-color dual-targeting fluorescent probe can realize dual-channel dual-organellar imaging through single molecule staining, can clearly present the spatial relationship and dynamic interaction of mitochondria and lysosomes, provides a powerful tool for mitochondrion-lysosome research, and also provides a reference for the design of multi-organellar targeting probes.

The present application provides a system and method for live cell RNA imaging and sensing. The system of the present application comprises: (i) a target recognition module comprising a circular binding RNA, the circular binding RNA comprising at least one target binding sequence configured to form a double-stranded binding region by complementary binding with a sequence on a target RNA; and (ii) a signal module comprising a double-stranded RNA binding protein and a signal element, the double-stranded RNA binding protein being connected to the signal element, wherein the double-stranded RNA binding protein recognizes and binds to the double-stranded binding region. The method of the present application comprises introducing the system into a live cell and performing imaging and detection. The system of the present application has the advantages of non-invasiveness, low fluorescence background and universality.

The application relates to the field of biotechnology, in particular to a nanobody targeting annexin A1 and a preparation method and application thereof, discloses a nanobody targeting annexin A1, the nanobody comprises a nanobody Nb6, wherein the amino acid sequence of the nanobody Nb6 is shown in Seq.ID NO.1, the nanobody Nb4 provided has higher affinity with annexin A1, the nanobody can be used for targeted action on annexin A1, has high-strength combination capacity with annexin A1, is favorable for development of a nanobody related medicine of annexin A1, realizes targeted treatment and imaging of tumors, and has very great clinical application value. Meanwhile, a molecular probe can be prepared based on the nanobody, the molecular probe is specifically combined with a tumor blood vessel surface annexin antigen, is applied to specific imaging and diagnosis of tumors, and is used for delivery of related medicines, and is widely applied.

The invention provides an imaging method and system, a storage medium and computing device.The method comprises the steps that an oxygen-sensitive film which is prepared in advance and provided with an oxygen-sensitive probe is installed on to-be-detected tissue of a to-be-detected object; the to-be-detected tissue contains specific tissue cells sensitive to calcium signals; alternately irradiating the multiple types of exciting light on the to-be-detected tissue according to a target interval through the imaging path; according to the target interval, different cameras are used for continuously collecting all frames of first exciting light signals on the oxygen sensitive film, all frames of second exciting light signals of the specific tissue cells and all frames of reflected light signals of blood oxygen in the tissue to be detected; generating a tissue oxygen partial pressure image of the to-be-detected tissue according to the continuously collected frames of first excitation light signals, generating a calcium signal image of the to-be-detected tissue according to the continuously collected frames of second excitation light signals, and generating a blood oxygen signal image of the to-be-detected tissue according to the continuously collected frames of reflected light signals.

This invention discloses a multi-mode control system and method for an electron beam welding machine. The system includes: a central control unit, an electron gun working circuit, a transmitter, and a regulating tube. The method includes the following steps: acquiring the working mode and setting parameters; acquiring sampling signals in the electron gun working circuit according to different working modes, shaping and amplifying the acquired sampling signals as feedback quantities, and adjusting the setting parameters and feedback quantities to obtain the grid bias voltage control signal u. k According to u k To provide the gate bias voltage U to the electron gun operating circuit g ; Obtain the discharge status of the electron gun's operating circuit, once the discharge signal u δ When the signal is active high, the adjustment operation stops and the central control device is notified. This invention is used to realize multi-mode control of electron beam welding machines and expand the processing functions of electron beam welding machines.

The application discloses a video synthetic aperture radar imaging and tracking integrated method, and mainly solves the problems of low imaging automation degree and large calculation amount in the prior art.The implementation scheme is as follows: reading SAR echo data containing N segments of synthetic apertures and setting an imaging grid; projecting and imaging the first two segments of echo data; preliminarily detecting on the image to obtain a target initial state set; performing inter-frame state transition on the targets in the initial state set to obtain a total target state set; setting an imaging region of interest according to the total target state set; performing value function accumulation and backtracking function updating on the second frame of image; performing target value function accumulation and backtracking function updating on the images of the remaining frame numbers according to the region of interest; and performing target track backtracking.The application reduces the calculation amount of video synthetic aperture radar imaging, improves the overall efficiency of video synthetic aperture radar target detection, and can be used for detecting ground moving targets by various airborne radars.

This invention discloses a method for locating and imaging local micro-defects based on nonlinear ultrasonic guided wave mixing, belonging to the field of nondestructive testing technology. The method includes: screening guided wave modes on the material under test; exciting two fundamental frequency guided wave signals to form a mixing region in the material; measuring the propagation velocity of the fundamental frequency guided waves and calculating the mixing point position; adjusting the excitation delay to achieve mixing point movement and region scanning; acquiring signals and performing frequency domain analysis to extract the nonlinear mixing signal; and then performing defect determination and imaging. This invention utilizes the high sensitivity of nonlinear ultrasonic guided wave mixing to micro-damage, achieving precise location and imaging of early-stage micro-defects in materials, thus solving the problem of insufficient identification capability of traditional nondestructive testing methods for minute damage.