Thermal imaging temperature measurement method and device and storage medium
A temperature measuring device and thermal imaging technology, applied in the field of infrared temperature measurement, can solve problems such as inability to accurately measure temperature, and achieve the effect of improving accuracy
Active Publication Date: 2020-10-09
杭州海康消防科技有限公司
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[0003] However, the current infrared temperature measuring device requires that the target to be measured and the infrared temperature measuring device be within an appropriate distance range
Otherwise, when the distance between the target and the infrared temperature measuring device exceeds the distance range, the infrared temperature measuring device cannot accurately measure the temperature of the target
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[0047] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and examples.
[0048] In some application scenarios, in order to improve the accuracy of temperature measurement, the thermal imaging temperature measuring device can be configured with a depth camera module or a ranging module (such as a radar ranging module or a laser ranging module) to determine the temperature of the thermal imaging temperature measuring device. The distance to the target being measured. On this basis, the temperature corresponding to each pixel point in the infrared image is accurately determined by using the distance between the thermal imaging temperature measuring device and the measured target.
[0049] In some application scenarios, the thermal imaging temperature measurement device is not equipped with a depth camera module or a distan...
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The invention provides a thermal imaging temperature measurement method and device and a storage medium. The thermal imaging temperature measurement method comprises the following steps: acquiring a thermal imaging image by a camera module; determining depth information of pixel points in the thermal imaging image, wherein the depth information of each pixel point represents the distance between an object point corresponding to the pixel point and the camera module; according to the gray value of the pixel points in the thermal imaging image and a temperature measurement model, and determininga first temperature value corresponding to the pixel point, wherein the temperature measurement model is used for representing the relation between the gray value of the pixel points and the temperature of the object point, and the first temperature value corresponding to the pixel points represents the temperature of the object point corresponding to the pixel points; correcting information according to the depth information and the temperature of each pixel point; and correcting the first temperature value corresponding to the pixel points to obtain a second temperature value correspondingto the pixel points, the temperature correction information being used for representing a mapping relationship among the depth information of the pixel points, the first temperature value corresponding to the pixel points and the second temperature value corresponding to the pixel points.
Description
technical field [0001] The present application relates to the technical field of infrared temperature measurement, in particular to a thermal imaging temperature measurement method, device and storage medium. Background technique [0002] In some application scenarios, the infrared detection method is used to measure the temperature of the target. The infrared temperature measurement device can usually collect thermal imaging images, and determine the temperature of each pixel in the image according to the response model of the infrared image sensor. [0003] However, the current infrared temperature measuring device requires that the target to be measured and the infrared temperature measuring device be within an appropriate distance range. Otherwise, when the distance between the target and the infrared temperature measuring device exceeds the distance range, the infrared temperature measuring device cannot accurately measure the temperature of the target. [0004] There...
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IPC IPC(8): G01J5/00
CPCG01J5/00G01J2005/0077G01J5/80
Inventor 陆健周建
Owner 杭州海康消防科技有限公司