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1. 发明授权

US09787913B1 Methods and systems for measurement and estimation of normalized contrast in infrared thermography 有权
公开(公告)号：US09787913B1
公开(公告)日：2017-10-10
申请号：US14727383
申请日：2015-06-01
申请人： Ajay M. Koshti
发明人： Ajay M. Koshti
IPC分类号： H04N5/33 , H04N5/32 , H04N3/09 , G01B11/02 , G01J5/00 , G01J5/60 , G01N25/18 , B41M5/26
CPC分类号： H04N5/33 , B41M5/26 , G01B11/022 , G01J5/0003 , G01J5/0066 , G01J5/60 , G01J2005/0077 , G01N25/18 , G01N25/72 , H04N3/09 , H04N5/32
摘要： Methods and systems for converting an image contrast evolution of an object to a temperature contrast evolution and vice versa are disclosed, including methods for assessing an emissivity of the object; calculating an afterglow heat flux evolution; calculating a measurement region of interest temperature change; calculating a reference region of interest temperature change; calculating a reflection temperature change; calculating the image contrast evolution or the temperature contrast evolution; and converting the image contrast evolution to the temperature contrast evolution or vice versa, respectively.

2. 发明授权

US09066028B1 Methods and systems for measurement and estimation of normalized contrast in infrared thermography 有权
标题翻译：用于测量和估计红外热像仪中归一化对比度的方法和系统
公开(公告)号：US09066028B1
公开(公告)日：2015-06-23
申请号：US12971919
申请日：2010-12-17
申请人： Ajay M. Koshti
发明人： Ajay M. Koshti
IPC分类号： H04N5/33
CPC分类号： H04N5/33 , B41M5/26 , G01B11/022 , G01J5/0003 , G01J5/0066 , G01J5/60 , G01J2005/0077 , G01N25/18 , G01N25/72 , H04N3/09 , H04N5/32
摘要： Methods and systems for converting an image contrast evolution of an object to a temperature contrast evolution and vice versa are disclosed, including methods for assessing an emissivity of the object; calculating an afterglow heat flux evolution; calculating a measurement region of interest temperature change; calculating a reference region of interest temperature change; calculating a reflection temperature change; calculating the image contrast evolution or the temperature contrast evolution; and converting the image contrast evolution to the temperature contrast evolution or vice versa, respectively.
摘要翻译：公开了用于将对象的图像对比演变转换为温度对比演化的方法和系统，反之亦然，包括用于评估对象的发射率的方法; 计算余辉热通量演化; 计算感兴趣的测量区域温度变化; 计算感兴趣的参考区域温度变化; 计算反射温度变化; 计算图像对比演化或温度对比演化; 并分别将图像对比度演变转换为温度对比演化，反之亦然。

3. 发明授权

US08577120B1 Methods and systems for characterization of an anomaly using infrared flash thermography 有权
标题翻译：使用红外闪光热成像技术表征异常的方法和系统
公开(公告)号：US08577120B1
公开(公告)日：2013-11-05
申请号：US12900644
申请日：2010-10-08
申请人： Ajay M. Koshti
发明人： Ajay M. Koshti
IPC分类号： G06K9/00
CPC分类号： G06T7/0004 , G06T7/62 , G06T2207/10016 , G06T2207/10048
摘要： A method for characterizing an anomaly in a material comprises (a) extracting contrast data; (b) measuring a contrast evolution; (c) filtering the contrast evolution; (d) measuring a peak amplitude of the contrast evolution; (d) determining a diameter and a depth of the anomaly, and (e) repeating the step of determining the diameter and the depth of the anomaly until a change in the estimate of the depth is less than a set value. The step of determining the diameter and the depth of the anomaly comprises estimating the depth using a diameter constant CD equal to one for the first iteration of determining the diameter and the depth; estimating the diameter; and comparing the estimate of the depth of the anomaly after each iteration of estimating to the prior estimate of the depth to calculate the change in the estimate of the depth of the anomaly.
摘要翻译：用于表征材料中的异常的方法包括：（a）提取对比度数据; （b）测量对比度演变; （c）过滤对比度演变; （d）测量对比度演化的峰值振幅; （d）确定异常的直径和深度，以及（e）重复确定异常的直径和深度的步骤，直到深度估计的改变小于设定值。确定异常的直径和深度的步骤包括使用等于一的直径常数CD来估计深度，用于确定直径和深度的第一次迭代; 估计直径; 并将估计的每次迭代之后的异常深度的估计与先前的深度估计进行比较，以计算异常深度估计的变化。

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