32results about How to "Avoid subjective bias" patented technology

The invention provides a quality evaluation method for a disparity map. The quality evaluation method comprises the steps of determining the mean value, the skewness and the peakness of the disparity map, and evaluating the quality of the disparity map according to the mean value, the skewness and the peakness. The invention further provides a quality evaluation method for a 3D video, which comprises the steps of acquiring an image from the 3D video, converting the image into a disparity map, and evaluating the quality of the disparity map according to the quality evaluation method for the disparity map, wherein the higher the quality of the evaluated disparity map is, the higher the quality of the evaluated 3D video is; the lower the quality of the evaluated disparity map is, the lower the quality of the evaluated 3D video is. The invention further provides quality evaluation devices for the disparity map and the 3D video. The evaluation qualities are improved.

The invention provides a distal femoral rotary positioner. The positioner is of a frame-type metal structure and comprises two epicondyle positioning discs used for positioning and respectively fixed to the inner epicondyle and the outer epicondyle of the femur, one Insall cross rod for indicating an Insall line, one pointer rod, one Whiteside indicating needle for observing the trochlear groove and fossa intercondyloidea, one posterior condyle cross rod for positioning and indicating a posterior condyle line, two posterior condyle supporting plates for positioning the space position of the posterior condyle, two supporting rods connected with the Insall cross rod, the pointer rod and the posterior condyle cross rod, and two locking screws for positioning and locking the epicondyle positioning discs on the Insall cross rod. After the structures are positioned according to respective correct osseous anatomy markers, the structures are connected and fixed to form one metal frame structure by using locking screws, and the structure is used for accurately assisting rotary positioning after distal femoral osteotomy. The distal femoral rotary positioner is simple in structure, quick and convenient to operate, visual in indication and small in occupied space, facilitates minimally invasive operation and can accurately assist rotary positioning after distal femoral osteotomy.

The invention provides a quality evaluation method for a disparity map. The quality evaluation method comprises the steps of determining the mean value, the skewness and the peakness of the disparity map, and evaluating the quality of the disparity map according to the mean value, the skewness and the peakness. The invention further provides a quality evaluation method for a 3D video, which comprises the steps of acquiring an image from the 3D video, converting the image into a disparity map, and evaluating the quality of the disparity map according to the quality evaluation method for the disparity map, wherein the higher the quality of the evaluated disparity map is, the higher the quality of the evaluated 3D video is; the lower the quality of the evaluated disparity map is, the lower the quality of the evaluated 3D video is. The invention further provides quality evaluation devices for the disparity map and the 3D video. The evaluation qualities are improved.

The invention discloses a method for editing retinal blood vessel edge lines. The method includes: obtaining the center line of the blood vessel, and drawing a plurality of caliber lines at equal intervals on the center line of the blood vessel; An endpoint and a second endpoint, judging whether there is a continuous line between the first endpoint and the second endpoint, and obtaining the judgment result; generating a corresponding relationship between the first endpoint and the second endpoint based on the judgment result; obtaining the user input the first control point, and adjust the corresponding relationship based on the first control point to obtain an adjusted corresponding relationship; edit the adjusted corresponding relationship based on the multiple caliber lines to generate an edited vessel edge line. The invention also discloses a device for editing retinal blood vessel edge lines. The accuracy of the retinal blood vessel image is improved by re-editing the edge line of the blood vessel. At the same time, the invention has simple operation, fewer operation steps, reduces work content, and improves work efficiency.

The invention discloses a color gamut mapping method, comprising: obtaining a first connecting line between the white point of the original color gamut and the original point of the original color gamut; obtaining the intersection point of the first connecting line and the original color gamut at the first mapping point in the target color gamut; obtain the second connecting line between the reference point in the original color gamut and the first mapping point; according to the white point, the reference point, the original point, the The intersection point and the second connecting line obtain the color coordinates of the second mapping point of the original point in the target color gamut; obtain the brightness value of the second mapping point according to the original point and the white point ; Acquiring the grayscale value of the second mapping point according to the color coordinates and the brightness value of the second mapping point. The invention also discloses a color gamut mapping component and a display device. The present invention automatically adjusts the performance of color points in the original color gamut in the target color gamut, without manual adjustment by professionals, avoiding subjective deviation, and achieving the consistency of color adjustment.

The invention discloses a method for early warning of the operating state of power grid system equipment based on reverse fuzzy hierarchical analysis, and belongs to the technical field of early warning of the state of hardware equipment of the power grid information system. The method includes: constructing a differentiated index system reflecting the operating status of power grid information system equipment; fitting the daily operation curve of a certain index of the equipment; obtaining the cumulative deviation, and comparing the cumulative deviation obtained by each index with the 1 of the corresponding index ‑9 scale mapping to obtain the fuzzy consistent judgment matrix; then calculate the weights of each indicator from the fuzzy consistent judgment matrix, sum the weights of the indicators belonging to a single device and average the number of indicators contained in the device, and reversely obtain the single The weight of each device; make a graded early warning for the operating status of the equipment and the information system. The method can fully deal with problems such as equipment aging or updating, business volume fluctuations, equipment additions, etc., and can reflect equipment state changes in real time to realize dynamic early warning.

The invention discloses a piano playing scoring system and method thereof. The method comprises following steps of extracting music characteristics of a played audio and carrying out normalization processing on the music characteristics; using the music characteristics subjected to the normalization processing as input of a neural network mathematical model, and acquiring key posterior probabilitycharacteristic sequences of the played audio; carrying out template matching processing on the key posterior probability characteristic sequences of the played audio and a key posterior probability characteristic sequences of a template audio to acquire multiple music characteristics for describing the matching degree so as to judge the played audio; and inputting the music characteristics for describing the matching degree into a piano playing scoring model so as to obtain scoring results. According to the invention, subjective factor deviations caused by personal difference of scorers in atraditional scoring method are avoided; the real level of players is truly reflected; and necessary scores can be provided for autonomous practices of piano learners.

The invention is applicable to the field of soil detection results, and provides a graph display and automatic interpretation method for a soil detection result, and the graph display and automatic interpretation method comprises the following steps: firstly, determining an optimal value (M), a lack value (QFZ) and an excess value (GLZ) of a soil index; calculating and determining a lower value (PDZ), a higher value (PGZ), a minimum value (ZXZ) and a maximum value (ZDZ) of the soil index; Partitioning and drawing according to an optimal value (M), a lack value (QFZ), an excess value (GLZ), a low value (PDZ), a high value (PGZ), a minimum value (ZXZ) and a maximum value (ZDZ) of the soil index; and finally, an automatic interpretation model is constructed, and the soil detection result is automatically interpreted, so that the technical problems that the soil detection result is fed back to a user in a digital report form, non-professionals cannot understand the soil detection result, and the soil detection result cannot be used for guiding fertilization are solved.