5results 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.

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 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.

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.