It seems that these tiny hidden cameras are growing more and more popular today and are inconspicuously placed in soft toys, on everyday objects, stuck upon walls to provide a surveillance image. This type of camera is normally used to monitor babysitter’s behavior with children and hence called the nanny camera. However, the home surveillance camera is most often used for security and safety purposes. These types of cameras now come equipped with motion sensors and night vision, making home surveillance even more effective.

Motion sensor cameras use the differences in infrared light pattern to trigger off an alarm or to flood an area with light as they are equipped with floodlights. This type of home surveillance camera also uses the principle of a photosensor, where a beam of light is exposed to the camera’s lens, and any change in the light pattern and saturation suggests a motion in the vicinity.

Night vision cameras and home surveillance camera uses the same IR premise as the motion sensor camera. However, it employs infrared emissions to put together a high resolution image, even in pitch dark. These security camera uses thermal imaging technology, another process that this security camera deploys is called image enhancement, resulting in the green colored images typically associated with night vision.