This week’s blog post was written by guest blogger, Liz Ashforth. For this post, Liz discovered research that shows how computer vision and signal processing algorithms can make health exams safer for both non-domestic animals and their caretakers.

听诊器是医生侦听您心率和呼吸的选择工具。但是当狮子获得体检时，兽医不能只是说“好的，深吸一口气”。

获得动物生命迹象对于评估健康至关重要。但对于许多动物来说，它可能是相当的challenging. Typically, the animals are captured and tranquilized, their vital signs recorded, and then the animals are monitored as the tranquilizer wears off. This process causesthe animal stress and can lead to injury. It can be dangerous for their caretakers as well. A newcomputer vision-based system启用兽医 和动物园守护者to safely and accurately take an animal’s vital signs从远处。

新non-invasive t.echnique.safm地区A.尼泊尔vitalsIGNS.

As reported by科学的美国人,JavaanChahl.是，南澳大利亚大学的遥感工程师,建立了一个设备能够捕获并分析图像提供对动物的重要标志的洞察力。该设备由高分辨率组成digital video camera, a telephoto lens, and a signal processing program.MATLAB分析sthe images远程to determine an animal’s breathing and heart rates.

它适用于不仅仅是狮子。根据the journalSensors,subject animals included the following species: Giant panda, African lions,苏门答腊虎,koala, red kangaroo, alpac一种，小蓝企鹅，苏门答腊猩猩，和狒狒狒狒.

“我们做了相当多的动物，”Chahl.说。他认为该方法几乎可以用于任何物种，包括非常小的物种。他说：“与雷达或热摄像头相比，关于基于光的图像的好事，就是你可以通过改变镜片来看待月亮来看待细菌，”他说。Anotbenefitof light-based imagery is its high resolution, which allowed Chahl and his colleagues to monitor animals from 10 to 130 feet away. 

Chahl.sexperiments extracted signals from the腹部胸部区域.在这个地区，cardiopulmonary activity, suchas expansion in the chest,是可观察到的via the images c适当的by the digital camera.MATLAB分析s the images和filters out “noise” fromthe动物的搬家T EN.abling科学家和兽医到successfully分析动物的心率和呼吸率。

虽然课题am does not provide meaningful results when an animal is running, it is a promising technology for further adoption for both animal and human use.

Future应用程序是多种多样的

The远程成像技术评估生命体征可能有很多beneficial用途ingydF4y2Baveterinary practice, conservation and game management, animal welfare, and zoological studies.还有human applications for this technology. For example, remote sensing could help with大规模健康检查，即very applicable to today’sCovid-19筛选sat airports and other public spaces. It could also be used in新生儿单位作为电极的替代品录音到新生儿。

最终，Chahl.smethod能够简化健康数据的集合，救命ing许多动物和人类minimize and avoid stressful and potentially damaging physical contact.现在，谁不想要吗？