Leading-edge developments of infrared vision for demanding scientific applications

红外视觉的前沿发展，满足高要求的科学应用

• 批准号: 327699-2011
• 负责人: Bendada, Abdelhakim
• 金额: $ 2.04万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=549182
• 关键词: Leading; edge; developments; infrared; vision

Infrared (IR) imaging is a valuable tool for the nondestructive testing (NDT) of materials and the temperature mapping of the scenes under inspection. Basically, the observation is implemented either with a passive or active mode. The passive mode consists in exploiting the IR radiation distribution as naturally emitted by a scene. In the active mode, an external heat or light source is required to perturb the natural equilibrium of the scene under observation and produce IR radiation differences (thermal or non-thermal) between the features of interest and the background. IR vision still faces several limitations at both the detection and interpretation stages, in particular for demanding applications. Short-term objectives of the proposed research are oriented towards the investigation of new ways for solving some of the key issues; they are in agreement with and ensure the continuity of the long-term goals of our research activities. The current proposed research program provides promising potential for the following original and valuable activities: 1) IR inspection of scenes with 3D complex shapes: the objective is to recover the inspected surface geometry and to correct the thermal images acquired during a thermal NDT test so that the detection of hidden defects is completed in a suitable way; 2) IR inspection of high speed heat transfer: the goal is to use stroboscopic techniques to artificially increase the apparent frame rate of our IR imagers; 3) IR inspection of microscale scenes: innovative development is foreseen by using the new trends in super resolution. The central goal is microscale thermal imaging; 4) Very far infrared (Terahertz) inspection: the recent progress in the terahertz field would allow the adaptation of our IR vision systems to terahertz measurement; this would be beneficial for our activities in NDT; and 5) IR multispectral inspection: the objective consists in pursuing our activities in the multispectral field by developing a tomography inspection method for silicon based structures. The significance of the activities proposed in this application is two-fold. First, the basis of the work has a strong theoretical foundation; and secondly, the expected results could be well applied in various industries.

红外（IR）成像是一种有价值的工具，用于材料的无损检测（NDT）和检测场景的温度映射。基本上，观察是以被动或主动模式实现的。被动模式包括利用由场景自然发射的IR辐射分布。在主动模式下，需要外部热源或光源来扰乱观察下的场景的自然平衡，并在感兴趣的特征和背景之间产生IR辐射差异（热或非热）。红外视觉在检测和解释阶段仍然面临着一些限制，特别是对于要求苛刻的应用。拟议研究的短期目标是研究解决一些关键问题的新方法;它们符合我们研究活动的长期目标并确保其连续性。目前提出的研究计划为以下原创和有价值的活动提供了有希望的潜力：1）具有3D复杂形状的场景的IR检测：目标是恢复被检测的表面几何形状并校正在热NDT测试期间获得的热图像，以便以合适的方式完成隐藏缺陷的检测; 2）高速传热的IR检测：我们的目标是利用频闪技术来人为地提高红外成像仪的表观帧率; 2 3）微尺度场景的红外检测：通过使用超分辨率的新趋势，可以预见创新的发展。中心目标是微尺度热成像; 4）甚远红外（太赫兹）检测：太赫兹领域的最新进展将使我们的红外视觉系统能够适应太赫兹测量;这将有利于我们在无损检测方面的活动;以及5）红外多光谱检测：我们的目标是通过开发一种用于硅基结构的层析成像检查方法，继续开展我们在多光谱领域的活动。本申请中提出的活动具有双重意义。首先，工作的基础具有较强的理论基础;其次，预期的结果可以很好地应用于各个行业。