10results about How to "Accurate imaging" patented technology

This invention discloses a roughness testing device and method for plastic-coated steel pipes, belonging to the field of steel pipe testing technology. It includes an operating table, with an equipment box bolted to its upper surface. A wide-angle high-definition camera is mounted on the lower surface of the equipment box. A fixing plate and a connecting plate are bolted to the upper surface of the operating table. A motor is bolted to the outer wall of the fixing plate. During operation, the device transfers the workpiece to the operating table using a robotic arm. An electric telescopic rod then drives a clamping plate to hold the workpiece. The motor then rotates the connecting plate and the clamping plate, allowing the wide-angle high-definition camera to perform a comprehensive inspection of the workpiece. A cleaning roller cleans the workpiece, removing particulate impurities from its surface, thus improving the accuracy of the wide-angle high-definition camera's results.

The utility model discloses an electronic sample viewing table for printed matters, which comprises a rack, a negative pressure placing table arranged on the rack, a background wall arranged on the rack and corresponding to the negative pressure placing table, a lifting plate arranged at the upper part of the background wall, a projector and a camera arranged at the bottom of the lifting plate and corresponding to the negative pressure placing table, and a display screen arranged on the background wall, a control center is installed on one side of the machine frame, a negative pressure cavity is installed on the bottom face of the negative pressure containing table, a plurality of sets of ventilation holes communicated with the negative pressure cavity are formed in the negative pressure containing table, a negative pressure fan is installed at the air outlet end of the negative pressure cavity, and the air outlet end of the negative pressure fan extends to the back of the machine frame. The negative pressure flattening device has the beneficial effects that the negative pressure cavity and the negative pressure fan are arranged to be matched with each other, so that an actual product on the negative pressure placing table can be subjected to air suction flattening, the product is prevented from being wrinkled, the image taking accuracy of a camera is ensured, and the product detection and comparison accuracy of a control center is improved.

This invention provides an activatable semiconductor polymer, its preparation method, and its applications. The activatable semiconductor polymer of this invention can efficiently accumulate at tumor sites. Due to the presence of electron-withdrawing groups on its side chains, the polymer's fluorescence is quenched. Upon response to tumor markers—biothiols, reactive oxygen species, and cathepsin B—the polymer's fluorescence recovers, enabling precise imaging and sonodynamic therapy at the tumor site. Simultaneously, the activatable semiconductor polymer of this invention can label immune cells (such as dendritic cells and macrophages) and track their metastasis from the tumor to the draining lymph nodes.

The application discloses a kind of dynamic platform forward-looking super-resolution imaging methods based on divide-and-conquer blind SAMP, comprising: the baseband echo signal is filtered in distance direction;According to filter signal, using acceleration phase compensation function and envelope deslope function calculates forward-looking scene scattering coefficient observation value;Construct overcomplete dictionary matrix;According to forward-looking scene scattering coefficient observation value and overcomplete dictionary matrix, using improved SAMP algorithm carries out forward-looking super-resolution imaging;The algorithm is based on divide-and-conquer method and carries out sparsity estimation, and reconstructs forward-looking scene signal based on sparsity;Wherein, two functions and overcomplete dictionary matrix are based on single-channel forward-looking scanning imaging geometry model of dynamic platform orientation and are constructed;The model introduces the three-dimensional acceleration of dynamic platform to accurately characterize the motion trajectory of dynamic platform.The application solves the problem of forward-looking super-resolution imaging blur under dynamic platform, effectively realizes the forward-looking super-resolution imaging of high-speed running dynamic platform.

The application discloses a kind of high-frequency single-photon tilt wavefront detection method and device, comprising the following steps: using wavefront modulation technique, high-speed coding and modulation are carried out to incident light wavefront;Single-photon signal acquisition, using single-photon detector, the single-photon signal focused after being focused by light signal guiding focusing device is collected, and the received photon signal is converted into electrical signal and is output by detector;Single-photon signal processing, single-photon signal wavefront reconstruction, according to the extracted wavefront tilt information, wavefront is reconstructed using wavefront reconstruction algorithm;Data correction;Data result analysis.The application uses wavefront modulation technique to carry out high-speed coding and modulation to incident light wavefront, can improve the performance of light signal guiding focusing device, enhance system flexibility, wavefront modulation technique allows the amplitude, phase, polarization state and wave vector direction parameter of light wave to be independently or simultaneously regulated, which greatly enhances the flexibility and functionality of light signal guiding focusing device, and can optimize imaging quality.

The invention belongs to the technical field of complex mountain area surface modeling and static correction in seismic exploration, particularly relates to a complex mountain viscoelastic wave field continuation static correction method based on small reflection data, and aims at solving the problem that the imaging quality of seismic data is low due to the fact that a static correction method based on the ray theory is large in error. The method comprises the following steps: acquiring seismic data in a small reflection mode; obtaining a scattered field at the detection point, and solving the parameter disturbance quantity in combination with the corresponding relationship between the parameter disturbance quantity and the scattered field; based on the parameter disturbance quantity, obtaining a quality factor Q of the underground medium and a frequency-dependent phase velocity v through the discretized frequency domain wave equation; updating Q and v until a set convergence condition is reached; and carrying out continuation static correction processing in combination with the updated Q and the updated v to obtain statically corrected seismic data. Static correction is carried out based on viscoelastic waves, and the imaging quality of seismic data is improved.

The utility model discloses an overall measurement light path joint upper rotating shaft type laser tracker turntable rotating shaft error detection device, which belongs to the laser tracking measurement field, and comprises a microscope, a fluorescent microsphere, a substrate and a six-dimensional precision calibration displacement platform, the microscope is arranged above the fluorescent microsphere, the fluorescent microsphere is fixed on the substrate, the six-dimensional precision calibration displacement platform is arranged on the substrate, and the microscope is arranged on the substrate. The substrate is fixed on the six-dimensional precise calibration displacement table in parallel, and the six-dimensional precise calibration displacement table is placed at the lower end of the microscope. According to the utility model, the error detection of the rotating shaft of the rotary table of the overall measurement light path connected with the upper rotating shaft type laser tracker realizes high-precision and omnibearing detection of the error of the rotating shaft of the rotary table of the overall measurement light path connected with the upper rotating shaft type laser tracker, and effectively improves the detection efficiency and accuracy through optimizing the measurement light path and a mechanical transmission structure; and reliable guarantee is provided for performance evaluation and quality control of the laser tracker turntable.

The invention relates to the fields of biomedical diagnosis, wearable sensing equipment, ultrasonic imaging and the like, in particular to an antibacterial, pressure-resistant and clear-imaging gel coupling patch as well as a preparation method and application of the antibacterial, pressure-resistant and clear-imaging gel coupling patch. The gel coupling patch prepared by the invention is composed of the functional mixed monomer, the cross-linking agent, the inorganic salt, the water-soluble antibacterial agent, the water-soluble redox system, the solvent water and the auxiliary agent, has acoustic impedance close to that of human skin so as to reduce the loss of sound waves, and is excellent in antibacterial property and mechanical property, excellent in electrical conductivity and imaging property, environment-friendly, free of smearing and low in cost. And the ultrasonic probe has an attaching function, can effectively increase the transmission efficiency of ultrasonic signals, realizes long-term monitoring of a human body, and can be coupled with wireless equipment to realize remote monitoring, so that the accuracy of diagnosis and treatment is improved. The gel coupling patch disclosed by the invention has wide application prospects in the fields of medical ultrasonic imaging, wound nursing, beauty and skin care, biosensing, food industry, environmental monitoring and animal medicine.

This invention relates to a reconfigurable underwater 3D laser scanning system and method, belonging to the field of underwater robot underwater environment 3D scanning technology. It solves the problems of non-reconfigurable underwater laser scanning systems, such as fixed structure, inability to change the scanning beam and form according to actual needs, leading to sparse point cloud data, insufficient information acquisition, slow scanning speed, and small detection range. The system includes an underwater camera module, a laser emitter module, a parallel circuit module, and a data processing center module unit. The laser emitter module is electrically connected to the parallel circuit module, and the underwater camera module, parallel circuit module, and data processing center module unit are electrically connected. This invention allows for the addition of underwater camera modules and laser emitter modules according to the needs of the underwater robot, expanding the scanning range and increasing the field of view. It has advantages such as simple structure, flexible scanning mode, dense point cloud data, and accurate imaging.

The application discloses a kind of azahemicyanine dyes and application thereof, compared with the dye similar to the function of novel azahemicyanine dye molecule provided by the application, the application can effectively prevent the non-specific combination of serum albumin and hemicyanine dye, and the stability, fluorescence quantum yield and stoke shift of the hemicyanine dye are enhanced;The dye synthesis step provided by the application is simple, easy to purify, and has high yield;By introducing six-membered heterocyclic ring into the side chain of azahemicyanine dye, the combination with protein is effectively avoided, the false positive interference of serum albumin on dye fluorescence signal is excluded, and kidney targeting is realized, and the high fidelity of imaging is improved;The probe NA-H2S2 synthesized based on the dye NA-6 provided by the application is used for rapid detection of the change of H2S2 concentration;The synthesis step of the dye molecule is simple, easy to purify, has excellent imaging performance, fluorescence signal is not interfered by serum albumin, and is suitable for high-fidelity imaging of kidney.