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Graphic feature extraction method and device

A technology of graphic features and extraction methods, applied in the field of data processing, can solve problems such as low efficiency, and achieve the effect of improving analysis efficiency and extracting feature points

Active Publication Date: 2019-03-22
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a graphic feature extraction method and device to at least solve the technical problem of low efficiency when analyzing multiple test graphics in the related art

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  • Graphic feature extraction method and device
  • Graphic feature extraction method and device

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circums...

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Abstract

The invention discloses a graphics feature extraction method and a device. The method comprises the following steps: acquiring data information of a graph to be analyzed, and obtaining a plurality ofdata points and data amplitudes corresponding to each data point; Determining a plurality of target extreme values and graphics characteristic values of the graphics to be analyzed according to the data points and the data amplitudes; Judging whether each curve segment of the graph to be analyzed is a smooth curve segment according to the characteristic value of the graph and a plurality of data points; When the curve segment of the graph to be analyzed is judged to be a non-smooth curve segment, extracting a plurality of characteristic points in the non-smooth curve segment and outputting theplurality of characteristic points of the non-smooth curve segment; When the curve segment of the graph to be analyzed is judged to be a gentle curve segment, the boundary points in the gentle curvesegment are extracted and the boundary points of the gentle curve segment are output. The invention solves the technical problem that the efficiency is low when analyzing a plurality of test patternsin the related art.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a graphic feature extraction method and device. Background technique [0002] In related technologies, for oil well testing or deep-sea testing, optical fiber and other instruments are often used to test signals such as temperature and pressure on the ground or seabed. etc. need to perform distributed testing. In related technologies, these signals such as temperature and distance, time and pressure, temperature and time can form multiple test signal patterns, and the data of each test signal pattern includes multiple test points and test points. Where the signal parameters. At present, when analyzing these test signal values, the prominent features (for example, the largest peak) are generally analyzed manually. However, with the continuous increase of test data, the test signal graphics continue to expand, and the efficiency of manually analyzing data It is no...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06F2218/14G06F2218/10
Inventor 芦志伟侯军伟谢斌潘勇王艳胡承军段胜男王宁博陈治军努尔买买提
Owner PETROCHINA CO LTD
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