How does the number of pixels in an array affect the quality of a thermal image?

The number of pixels in a thermal image array significantly affects image quality by enhancing detail and sharpness. A greater pixel count allows for more data to be collected within the same area, translating to finer resolution in the thermal image. This increased resolution enables the detection of smaller temperature variations and enhances the clarity of distinct features or objects within the thermal scene. As a result, more pixels provide a more comprehensive representation of the thermal characteristics present, which is crucial in applications like building inspections, electrical assessments, and medical diagnostics.

In contrast, higher frame rates are typically related to the speed of the sensor and the technology used, rather than the pixel count itself. A thermal image appearing warmer is not directly influenced by pixel count but rather by the thermal characteristics of the objects being imaged. Color contrast is usually improved by sophisticated processing algorithms rather than simply having fewer pixels, as reducing the pixel count may lead to a loss of critical detail rather than enhancing contrast. Therefore, a greater pixel count directly correlates with an improved quality of thermal images by rendering them sharper and more detailed.