9results about How to "Auxiliary judgment" patented technology

The invention provides a multi-mode fusion gas station leakage-fire early warning method and system, and belongs to the field of gas system leakage and fire monitoring. The method comprises the following steps: firstly, acquiring infrared image data, pressure and gas concentration time sequence data of a gas station pipeline; secondly, the collected data are preprocessed; thirdly, an abnormal heat source image data set is manufactured, and a yov5 abnormal heat source monitoring model is constructed and trained and used for recognizing an abnormal heat source and calculating the fire symptom abnormal probability; and then, merging the fire symptom anomaly probability with a sensor data set, making a leakage-fire data set, and establishing a multi-mode gas station leakage-fire anomaly identification model for training and tuning. And finally, the trained multi-mode model is used for carrying out leakage-fire abnormity monitoring on the gas station, and corresponding early warning information is sent out according to an output result. According to the invention, gas leakage-fire joint abnormity discrimination can be realized, and the safety and early warning accuracy of the gas station are improved.

The invention relates to a cell quantification method and device, computer equipment and a storage medium. The method comprises the following steps: extracting cell contour features of an endoscope cell image corresponding to a region of interest through a pre-constructed deep learning model, and separating a cell contour region corresponding to each cell in the endoscope cell image according to the cell contour features; classifying the cell contour region corresponding to each cell through the deep learning model to obtain a cell category of each cell; determining an overall cell quantification result corresponding to the endoscope cell image through the deep learning model according to the cell contour region of each cell; and performing depth feature extraction on the cell contour region of which the cell category is the abnormal cell through the deep learning model, and determining an abnormal cell quantification result according to the depth feature and the cell contour feature of the abnormal cell. By adopting the method, the abnormal condition of the cells can be accurately and efficiently judged.

The invention provides a double-balloon catheter for an interventional operation at a blood vessel bifurcation position in order to solve the problem that the interventional operation at the blood vessel bifurcation position at a focus position is difficult to operate. Comprising a catheter head section, a catheter main body section, a first balloon, a second balloon, a first fluid passage and a second fluid passage, wherein the catheter head section and the catheter main body section are integrally connected; the first balloon is arranged around the catheter head section; the second balloon is arranged around the catheter main body section at the position close to the catheter head section; the catheter main body section and the catheter head section jointly form an instrument passage; the catheter head section is provided with an end opening, and a side opening is formed in the position, between the first balloon and the second balloon, of the catheter body section. Compared with the catheter main body section, the catheter head section is more easily pressed and deformed.

This invention relates to the technical field of ultrasound image feature extraction for thyroid nodules, specifically to a method and system for ultrasound image feature extraction of thyroid nodules. The method includes the following steps: acquiring an ultrasound image containing thyroid nodules; performing multi-scale image analysis on the ultrasound image to construct a multi-scale image representation of the ultrasound image; using the multi-scale image representation to identify low-echo regions in the ultrasound image, and combining feature analysis, judgment correction, and spatial relationship verification to determine the acoustic shadowing region in the ultrasound image; performing suppression processing on the acoustic shadowing region, wherein the suppression processing includes unifying the signal within the acoustic shadowing region and softening the boundary of the acoustic shadowing region to obtain an optimized image; identifying the contour of the thyroid nodule based on the optimized image; and quantifying the morphology and internal structure of the thyroid nodule based on its contour. This application can effectively identify and suppress acoustic shadowing regions in ultrasound images.

This invention relates to an endoscopic surgical navigation method and device based on video image augmented reality. The method includes: segmenting the key surgical areas of interest and selecting anatomical landmarks from preoperative CT images; installing passive tracking tools on the patient's surgical site and the endoscope; registering the real patient with a 3D model using calibrated probes and anatomical landmarks; calibrating the endoscope parameters under the navigation system; determining the transformation matrix of the passive tracking tool coordinate system relative to the endoscope coordinate system; projecting and rendering the 3D model of the preoperatively segmented key surgical areas of interest using a pinhole model simulation and processing it with distortion parameters to obtain a virtual image; and fusing the virtual image with images acquired in real time by the endoscope and displaying it. Compared with existing technologies, this invention fuses virtual images with real endoscopic images and presents them on the same screen, reducing the surgeon's intraoperative judgment time and lowering the difficulty of hand-eye coordination.

The utility model relates to the technical field of circuit board bending, and discloses a flexible circuit board bending device. The flexible circuit board bending device comprises a base, a mounting seat a is arranged on the outer wall of the upper portion of the base, a lower mold is detachably connected to the middle of the mounting seat a, a vertical frame is fixedly connected to the outer wall of the upper portion of the base, a supporting seat is slidably connected to the inner wall of the vertical frame, and a mounting seat b is fixedly connected to the front end of the supporting seat. An upper mold is detachably connected to the interior of the mounting base b, the bottom end of the upper mold is connected with the outer wall of the upper portion of the lower mold in an inserted mode, the inner wall of the mounting base a is elastically connected with a buckle assembly through a reset spring a, the buckle assembly is fixedly connected with a connecting plate, and a pull rod is fixedly connected to the outer wall of the connecting plate. When in use, the bolt puller is easy to mount and dismount, bolts are not required to be loosened one by one by virtue of an additional dismounting tool, the working efficiency is improved, and the time is saved.

The present application discloses a method, device, equipment and storage medium for screening metabolites of disease markers, the method comprising: obtaining the breath of healthy subjects and disease subjects, and constructing respective compound spectra, standardizing the respective compound spectra, and preliminarily screening candidate differential metabolites based on the false positive discovery rate FDR value and the variable projection importance index VIP value, and further screening the target differential metabolites for judging the disease from each candidate differential metabolite through the breath metabolite judgment model. It can be seen that the standardized treatment of the compound spectra can screen out most of the invalid compounds, greatly narrow the determination range of the disease markers, and re-screening in the candidate differential metabolites can obtain more accurate disease markers and more effectively assist the judgment of disease detection.

The utility model provides a radian measuring device. The radian measuring device comprises a placing table and a detection piece. A detection position for placing a to-be-detected product is formed on the placing table, and at least three detection through holes are formed in the bottom wall of the detection position; the number of the detection pieces is more than three, the multiple detection pieces are arranged in the length direction of the detection position, the detection pieces and the detection through holes are arranged in a one-to-one correspondence mode, and the detection probe of each detection piece is arranged in the corresponding detection through hole in a penetrating mode; the detection position comprises a containing part and two end positioning parts, the containing part is located between the two end positioning parts in the length direction of the detection position, and all the detection through holes are located in the containing part; the accommodating depth of each end part positioning part is adjustable; and / or each end positioning part comprises a first abutting wall, the first abutting walls are arranged towards the accommodating part, and the distance between the first abutting walls of the two end positioning parts is adjustable. The radian measuring device provided by the utility model can meet the requirement of radian measurement of products with various length sizes or radian sizes.

The present invention provides a method of assisting a determination of whether a subject is susceptible to infection by norovirus or whether a subject is susceptible to post-infection worsening, wherein this method contains a step of measuring the concentration of IgG antibody that is present in a sample originating from within the oral cavity of the subject.