Advantages and disadvantages of Thermal Imaging Camera

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Let it be shopping, entertainment, or security, technological advancements have changed the way of life across the globe. The developments render a better environment and safe living conditions. The thermal imaging camera is such an invention that offers better surveillance capabilities, thereby providing improved security to a home, office, or industrial establishment.

As with any other thing, a thermal imaging camera also has advantages and disadvantages. An elaborate understanding of the same will be helpful to make the right choice.

Advantages of Thermal Imaging Camera

Let&#;s have a look at the advantages of thermal imaging cameras.

Thermal Imaging Camera Delivers More Efficient Surveillance Scenario

Sensitive installations, houses, offices, factories, or industrial areas can use thermal imaging cameras at any corner of the property effectively. It doesn&#;t require lighting at all, since it captures the heat radiated from living beings. This operational peculiarity helps in installing the camera hidden from public eyes.

Weatherproof Device

It will not be impacted by wind, moisture, rain, or heat. Manufactured to withstand adverse climatic scenarios, the thermal camera will give the same quality of image irrespective of weather.

Capture Even Distant Images

Distant images will not be clear in visible-light cameras. The thermal imaging cameras capture the heat radiated from the body; therefore, it will indicate even distant living beings and their movements.

Maintenance-friendly

Thermal imaging cameras will not require frequent preventive or corrective maintenance.

Cost-effective Option

The comparatively higher initial cost may be a cause of concern for many. You may note that the longevity, performance and weatherproof aspects make thermal imaging cameras a cost-effective option.

Distinctive Images

You can easily differentiate an animal from a human being, which is essential in surveillance requirements. On the other hand, it may be difficult to distinguish between an animal and man, during bad light conditions, in the case of a visible light camera.

Functions Equally Well in Any Time of the Day

Be it day or night, the thermal imaging camera will perform with equal accuracy.

Disadvantages of Thermal Imaging Camera

The thermal imaging camera has been developed after in-depth studies and analysis. Moreover, all the available technical components have been integrated, to obtain the best result. Therefore, thermal imaging cameras are superior to visible light cameras. Nonetheless, the thermal imaging camera has a few disadvantages.

Initial procurement and Installation Cost is Higher than Visible Light Camera

The manufacturing of thermal imaging cameras necessitates exorbitantly priced components. Furthermore, it undergoes a systematic, yet complicated, production process to integrate the parts. The uniquely designed and developed components make the overall production cost higher. As a result, initial procurement and installation will turn dearly. 

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Features of Intruders will not be Registered

Thermal imaging cameras will not provide real images of the individuals. It is highly used in defence establishments, wherein they have a special team to monitor unauthorized activities and capture the intruders at the same time. While one uses it at a residence to prevent theft or such unlawful activities, the image of the burglar or intruder is necessary to identify and nab him/ her. Thermal imaging cameras may not be of much use in areas where round the clock security is not available.

Limitations of Infrared

A thermal imaging camera uses infrared rays for capturing living beings. Unlike normal light, infrared rays cannot pass through glass or water. It will simply reflect upon hitting glass or water. This is a serious limitation whilst using this camera for surveillance in certain areas including highways. The camera will not be able to detect the individuals inside a vehicle.

Using Thermal Camera in Pandemic Scenario

Since the camera captures a person&#;s (a living being&#;s) body temperature, the surveillance may turn into a complex issue during pandemic conditions. It may not detect a person, who has a reduced body temperature due to the consumption of paracetamol or any other medicines. You may note that miscreants can try this method during normal conditions also.

After analyzing the aforementioned advantages and disadvantages, you might have understood that a proper inspection of the area of use, assessment of the requirements, evaluation of possible threats, and end-use are vital in deciding upon a thermal camera and visible light camera.

Choose to buy visible light or thermal imaging cameras only from a reputed manufacturer, once you have identified the right option. Constant support from the manufacturer will be essential in installation, implementing modifications, and advising on the updation of formulated preventive maintenance policies.

It would be beneficial for you if you can discuss the requirements, available budget and other relevant factors with professionals. Guidance from experts will be of paramount value to choose and install the right type of surveillance camera at your premise. Providing highly secure and robust solutions for the cabling and communication requirement, Norden Communication caters to all the major sectors such as Telecommunication, Building, Finance, IT, Health, Education, Tourism and Government sector.

Providing highly secure and robust surveillance solutions, Norden Communication is reputed as one of the world leaders in designing, manufacturing, and marketing thermal imaging cameras. Norden Communication is a leading manufacturer of Low Voltage Cables, Surveillance Systems, Data Centre Solutions, and Public Address System. Our Eyenor Surveillance System utilizes advanced detectors that can provide excellent image performance with high efficiency. Contact us for technology-advanced thermal imaging systems for your business enterprise. 

Finite testing

Although most camera modules are designed to be used with the object at a larger distance (infinite conjugate), conventional testing techniques usually place a test target with various patterns &#; typically a test chart &#; at a shorter distance (finite conjugate) from the module.

Today, testing with test charts in finite distance is standard, done by image analysis software in real time. Figure 1 shows a schematic representation of a test chart system in finite configuration. The device under test (DUT) is placed in front of an illuminated chart with different markers and patterns on it. An image is then taken with the DUT, and software algorithms analyze the position and shape of the markers, and extract the performance parameters of the camera module.

A modified version of this setup incorporates a relay lens in between sample and chart to create a virtual image of the chart as seen from infinite distance. This approach usually requires a custom, high-quality relay lens, especially for larger-field-of-view applications and broadband (e.g., daylight) illumination, which can make such a setup complex and commercially unviable. This solution should be used only if infinity conjugate measurement and a more complex chart evaluation are required.

This test chart technology is relatively easy to deploy and combines a high density of measurement points with the ability to use different types of markers and patterns on different field positions of a single chart. It is typically used for sensor resolutions of up to 13 MP and testing in finite or close-to-infinite distances. However, because of recent advances in manufacturing technology, this technology reaches its limits as the industry moves to sensor resolutions of 13 MP and higher, which tightens the requirements on optics and the alignment of the individual components of the module.

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