Data point thinning method and device and electronic equipment
A technology of data points and ideas, applied in the field of data point thinning methods, devices and electronic equipment, can solve problems such as poor accuracy
Pending Publication Date: 2020-05-15
北京蛙鸣华清环保科技有限公司
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[0003] In the prior art, the points in the data point set are mainly divided into several line segments, and then the two endpoints of each line segment are extracted, and the data points between the two end points are discarded, so as to realize the thinning process of the data point set , however, the accuracy of the results obtained by thinning out in this way is poor
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[0073] As an optional implementation, the method also includes:
[0074] The first point set is divided to obtain at least one sub-point set, wherein the data points in each sub-point set are located within a preset range around the same line segment.
[0075] Specifically, at least one sub-point set is obtained by dividing the first point set, so that thinning can be performed in units of each sub-point set, thereby ensuring the orderliness of the thinning process.
[0076] Optionally, the first point set is a sequence point set including a plurality of sequence points, and the first point set is divided to obtain at least one sub-point set, including:
[0077] Connecting the fourth data point and the fifth data point in the first point set to form a first line segment, wherein the fourth data point and the fifth data point are respectively sequence headers in the first point set point and end of sequence;
[0078] If the distance between the sixth data point in the first p...
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The invention provides a data point thinning method and device and electronic equipment, and the method comprises the steps: obtaining a first point set which comprises at least one sub-point set, wherein the data points in each sub-point set to be located in a preset range around a same line segment, if the distance between the two data points with the farthest distance in the sub-point set is greater than a first preset value, selecting a first data point, a second data point and at least one third data point in the sub-point set as data points in a second point set, and if the distance between the two data points with the farthest distance in the sub-point set is not greater than the first preset value, selecting the first data point and the second data point in the sub-point set as data points in a second point set. According to the data point thinning method and device and the electronic equipment provided by the embodiment of the invention, the accuracy of the thinning result canbe improved.
Description
technical field [0001] The invention relates to the field of data processing, in particular to a data point thinning method, device and electronic equipment. Background technique [0002] Sampling is a commonly used data analysis method in the prior art. However, when the sampling data is dense, it is not only not conducive to calculation and rendering, but may affect the recognition of distribution characteristics. Therefore, when the sampling data is dense, it is usually necessary to thin the data before analyzing the data. [0003] In the prior art, the points in the data point set are mainly divided into several line segments, and then the two endpoints of each line segment are extracted, and the data points between the two end points are discarded, so as to realize the thinning process of the data point set , however, the accuracy of the results obtained by thinning out in this way is poor. Contents of the invention [0004] The purpose of the embodiments of the pre...
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IPC IPC(8): G06F16/903
CPCG06F16/90335
Inventor 华思洋王璐璐
Owner 北京蛙鸣华清环保科技有限公司