A high temperature interference source removal method based on thermal imaging

A technology of thermal imaging and interference sources, applied in the field of thermal imaging, can solve the problems of false negatives, inability to achieve intelligent, automatic, and intuitive removal of high-temperature interference sources, and temperature-sensitive and effective information cover-up, so as to achieve the effect of preventing cover-up

Active Publication Date: 2020-06-05
山东神戎电子股份有限公司
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  • Abstract
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Problems solved by technology

[0002] Thermal imaging is used more and more widely in various fields, and its characteristics based on temperature imaging have unique advantages in fire protection monitoring, power inspection, security monitoring and other industries; but if there are high-temperature interference sources in the visible area, due to Its temperature sensitivity causes effective information to be covered up, resulting in false positives or missed negatives
[0003] Most of the currently existing methods for removing or shielding high-temperature interference sources focus on manual area shielding, fixed target shielding, shielding based on temperature ranges, and shielding based on the angle of the pan / tilt, etc., which cannot be intelligent, automatic, and intuitive removal

Method used

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Embodiment Construction

[0012] The present invention will be further illustrated by specific embodiments below.

[0013] A method for removing high-temperature interference sources based on thermal imaging includes the following steps:

[0014] a) The thermal imaging device scans the monitoring area to form a panoramic image of the monitoring area;

[0015] b) through the formula Calculate the detection threshold Z 1 , Where A is the time factor, and the value of A is Where t is the time, p is the number of pixels occupied by the target in the image, C is the current ambient temperature, C max Is the highest temperature counted in 365 days in the monitored area, F is the current wind speed, F a Is the 365-day average wind speed in the monitored area, F max It is the highest wind speed counted in 365 days in the monitoring area;

[0016] c) In the real-time operation of the thermal imaging equipment, the detection threshold Z 1 The target is obtained and identified, which is greater than the detection thre...

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Abstract

A high-temperature interference source removing method based on thermal imaging includes a) a thermal imaging device scans the monitoring area to form a panoramic image of the monitoring area; b) thedetection threshold value is Z1 is calculated; c) in the real-time operation of the thermal imaging equipment, a target which is larger than the detection threshold value Z1 in the image is acquired and identified, and the target which is larger than the detection threshold value Z1 is determined as an effective high-temperature alarm target. The detection threshold value Z1 is calculated in an actual monitoring region at first, and then the target which is larger than the detection threshold value Z1 is acquired and identified in subsequent thermal imaging monitoring, and an alarm is given tothe effective high-temperature target of the branch. The other high-temperature targets can be used as an interference source to be shielded, so that the situation that the effective information is covered due to the temperature sensitivity is effectively avoided, and the situation of false alarm or missing is avoided.

Description

Technical field [0001] The invention relates to the technical field of thermal imaging, in particular to a method for removing high-temperature interference sources based on thermal imaging. Background technique [0002] Thermal imaging is more and more widely used in various fields. Its characteristics based on temperature imaging have unique advantages in fire protection monitoring, power inspection, security monitoring and other industries; but if there are high-temperature interference sources in the visible area, because Its temperature sensitivity causes effective information to be covered up, causing false or under-reporting situations. [0003] The existing methods for removing or shielding high-temperature interference sources mostly focus on manual area shielding, fixed target shielding, shielding based on temperature ranges, and shielding based on pan-tilt angles. It is impossible to achieve intelligent, automatic, and automatic control of high-temperature interference s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00
CPCG01J5/00G01J2005/0077
Inventor 马敬锐于飞张海军
Owner 山东神戎电子股份有限公司
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