In the present study, image reconstruction methods are applied in active dynamic thermography (ADT) to visualize the superficial blood vessel with high contrast. ADT is performed on the left forearm of a human subject by applying cooling based external thermal stimulation. Both non-parametrized, viz. sequence image, sequentially subtracted image, Discrete Fourier Transformation (phase and amplitude image), and Thermographic Signal Reconstruction (TSR), and parametrized, viz. Tau time (τ), $d{T}_{norm},t_{90-10n},$ and Tissue Activity Ratio $(TAR)$, types of image reconstruction methods are used. To perform a quantitative comparison, among the image reconstruction methods, the image contrast value is evaluated. While sequentially subtracted image provides a high contrast image in non-parametrized image reconstruction methods, for parametrized image reconstruction methods, it is $TAR$. Among all the methods considered, $TAR$ provides the best contrast image followed by τ image method.

在本研究中，图像重建方法被应用于主动动态热成像（ADT）中以高对比度可视化浅表血管。通过应用基于冷却的外部热刺激，在人类受试者的左前臂上执行ADT。两者都是非参数化的，即。序列图像，顺序相减的图像，离散傅立叶变换（相位和幅度图像）和热成像信号重建（TSR），以及参数化。Tau时间（τ），$d{Ť}_{ñØ\mathrm{[R}米}，{Ť}_{90-10ñ}，$ 和组织活性比 $（Ť\mathrm{一种}\mathrm{[R}）$，使用了图像重建方法的类型。为了进行定量比较，在图像重建方法中，评估图像对比度值。尽管在非参数化图像重建方法中顺序减去的图像可提供高对比度的图像，但对于参数化图像重建方法，它是$Ť\mathrm{一种}\mathrm{[R}$。在所有考虑的方法中，$Ť\mathrm{一种}\mathrm{[R}$提供最佳对比度图像，然后是τ图像方法。