8results about How to "Reduce subjective influence" patented technology

The invention provides a slag car cleanliness calculation method, a program product, electronic equipment and a storage medium. The method comprises the following steps: acquiring a plurality of to-be-detected images with a sequential relationship corresponding to a slag car; using a target tracking algorithm to determine the motion trail of the slag car; according to the motion trail and the timestamp of the to-be-detected image, the washing duration of the muck truck is determined; under the condition that the washing duration meets the requirement, semantic segmentation is carried out on the to-be-detected image, and a sediment area and a slag car contour area are obtained; and determining the cleanliness of the muck truck based on the sediment area and the contour area of the muck truck. According to the motion trails obtained in the to-be-detected images with the time sequence relation, more information is obtained, and the flushing duration of the slag car is calculated more accurately. Whether the washing duration meets the requirement or not is judged firstly, and then semantic segmentation is performed on the to-be-detected image, so that the calculation amount is reduced, the detection efficiency is improved, and the subjective influence caused by manual cleanliness determination is reduced.

The present invention discloses a method and system for quantitatively grading musculoskeletal ultrasound ultramicro blood flow based on optical flow analysis, the method comprising: obtaining an original ultramicro blood flow image sequence of an object to be detected; preprocessing the original ultramicro blood flow image sequence; extracting a region of interest, i.e., a ROI region, from the ultramicro blood flow image sequence after preprocessing; extracting ultramicro blood vessel morphology from the ROI region; dynamically analyzing the ultramicro blood flow in the ROI region, the dynamic analysis comprising: ultramicro blood flow calculation, motion optical flow field estimation, and fusion of microblood flow morphological features; generating two indicators, motion density of ultramicro blood flow and elastic density of ultramicro blood vessels, according to the dynamic analysis results; and grading the blood flow signal of the region of interest according to the motion density and elastic density. The method of the present invention improves the accuracy of quantitative grading of musculoskeletal ultrasound ultramicro blood flow.

The invention relates to the field of industrial waste heat utilization, and discloses a working medium optimal selection method, system, medium and equipment for an offshore high-temperature waste heat organic Rankine cycle power generation system, and the method comprises the steps: preliminarily screening out an organic working medium adapting to an offshore high-temperature waste heat working condition according to a project heat source condition by taking an organic working medium preliminary screening technical index as a criterion; index weight calculation is carried out through an organic working medium comprehensive evaluation method, and scoring and decision making are carried out on each working medium; the comprehensive evaluation method comprises the steps of establishing a hierarchical structure model, constructing a judgment matrix, checking the consistency of the judgment matrix, calculating an index weight, comprehensively scoring and making a decision. And carrying out environmental health analysis on the organic working medium, carrying out safety and stability evaluation on the organic working medium, and screening out the ORC system organic working medium adapting to the special working condition of the offshore platform. Selection of the organic working medium of the offshore high-temperature waste heat organic Rankine cycle power generation system is achieved, and the economic benefits, safety and stability of the power generation system are improved.

The invention discloses a head and neck axial rotation angle measuring device, comprising: a fixed plate, a protractor, a rotating benchmark, and a benchmark free rod; the protractor is vertically arranged at the top of the fixed plate; the rotating benchmark is fixed on the fixed plate, and the rotating axis of the rotating benchmark is connected to the measuring center point in the protractor; one end of the benchmark free rod is arranged at the connection between the rotating benchmark and the measuring center point; a vertical chain is hung on the other end of the benchmark free rod; and the benchmark free rod is parallel to the plane where the protractor is located; and a plumb line is connected to the other end of the vertical chain. The subject rotates the head and neck axially, and the vertical chain hung on the benchmark free rod is overlapped with the subject's nose tip, so as to obtain the axial rotation angle of the subject's head and neck. The operation is simple and harmless to the subject, thereby improving the convenience of measurement; the subject is less affected by the operator's subjective influence, so that the measurement result is more accurate.

The present application discloses a ship maintainability design recommendation method and system, which relates to the field of ship maintainability design technology. The method includes: obtaining ship maintainability design knowledge and ship DFMEA knowledge, processing them, and constructing a ship maintainability design knowledge base; constructing a ship maintainability design ontology based on the ship maintainability design knowledge base; the ship maintainability design ontology is a structured representation of the knowledge base; obtaining text data input by designers, using natural language processing technology to perform entity recognition on the text data, and obtaining entities and their corresponding classes; based on the ship maintainability design ontology and the entities and their corresponding classes, obtaining the ship's maintainability design strategy. The present application realizes the effective management of ship maintainability design knowledge and ship DFMEA knowledge by constructing a ship maintainability design ontology, and can provide objective ship maintainability design strategies based on the data input by designers, thereby improving maintenance efficiency.

The embodiment of the present application discloses an image annotation method, which compares the face quality of two images to be annotated as a comparison pair, so that the basis for user judgment has a measurable objective standard, reducing subjective influence. And based on the comparison result, the annotated image can be used as a node to construct a balanced binary tree, and in any target node in the balanced binary tree, the subnodes on different sides have different face quality comparison results from the target node. Therefore, when the face quality of the target image to be annotated is compared later, the image related to it can be selected according to the balanced binary tree to form a comparison pair, wherein the face quality comparison result of the i-th image to be compared and the i-1-th image to be compared is the same as that of the target image to be annotated and the i-1-th image to be compared in the i-1-th comparison pair. Thereby reducing the number of comparison pairs in the process of completing the identification of the image set to be annotated, and improving the annotation efficiency of face images.

The invention relates to the technical field of granite ice crack laying, in particular to a granite ice crack laying tool and a modular construction method.The granite ice crack laying tool comprises a plurality of nesting boxes, the shapes of the nesting boxes are different, the number of edges of each nesting box is larger than four, and the number of the edges of each nesting box is larger than four. Every two adjacent nested boxes are connected through a connecting mechanism, and the width of an abutted seam between every two adjacent nested boxes ranges from 5 cm to 15 cm. The method has the advantages that the broken splicing units are designed in advance through drawing software, subjective influence is reduced through construction with modules as units, the seam width is controlled through the nested box set, falling plate positioning is facilitated, the quality control difficulty is reduced, the complex on-site splicing process is converted into assembling of the fixed units, and the production efficiency is improved. The design of the nesting box group further reduces the process of repeated adjustment after plate falling, improves the work efficiency and reduces the cost.

The invention provides an urban road network trunk green wave line automatic generation and calculation method, and relates to the field of urban traffic signal coordination control. Comprising the following steps: (1) establishing an urban road network intersection topological relation; (2) determining an intersection with the maximum traffic demand; (3) generating forward and reverse green wave lines; (4) fusing the forward and reverse green wave lines; according to the method for automatically generating the green wave line, firstly, the intersection with the largest traffic demand is determined, the intersection serves as a search starting point, the correlation degree between the intersection and the adjacent intersection is calculated, green wave line search is carried out according to the correlation between the intersections, manual participation is not needed in the whole process, and the green wave line is automatically generated; the subjective influence of technicians can be reduced, and the efficiency and scientificity of green wave line determination are further improved. By means of the method, the coordination control scheme of the networked intersections in the urban area can be optimized, and the travel experience of residents is greatly improved.