CBC Parts Accessory Model Overview
Products and parts from CBC.
CBC ZNT6-HAT1FN25-N Security Camera Overview
Thermal Imaging: There Is No Comparison
The diagram below depicts images from the same scene captured with various imaging equipment common in today's surveillance market. Conventional video surveillance options such as CCTV with Infrared Illuminators, Active Visible (Day TV) and Image Intensifiers (i2) cannot adequately define the scene with clarity, as thermal cameras can.
Several types of imaging technologies are available for security applications, but thermal cameras offer particular advantages that can extend the surveillance and monitoring capabilities of security systems and personnel. All competing technologies - visible-light camera, night vision and near-infrared - have limited viewing capacity.
Ganz Thermal Infrared
These low-light devices amplify the available ambient light to produce an image of the scene. Consequently, image intensifiers need a source of illumination to operate effectively and cannot perform well in total darkness. Their effectiveness also is hampered by their limited range. Image intensifiers are subject to a "blooming" effect that results from brightly lit objects in the scene. These light sources appear as intense glows that may hide nearby detail and, if sufficiently strong, may blind the camera by flooding the scene with light.
Image Intensifier (i2)
CCTV with Infrared Illuminator
For security operations, closed circuit TV systems are o?ten coupled with infrared illuminators, such as diodes, infrared lamps and lasers. With these illuminators, CCTV offers an improvement in imaging compared with day TV devices, but it still requires enhanced illumination when detecting images in semi-darkness and other low-light conditions. Additionally, CCTV's capabilities o?ten are limited by range and weather conditions.
Active Visible Lighting (Day TV)
Day cameras, employing active visible lighting, detect the portion of the electromagnetic spectrum that is visible to the human eye, a segment ranging from 350 nm to 750 nm in wavelength. Using conventional video cameras, these systems splash light on the targeted area to identify intrusions. The light source, however, draws attention to the device, and intruders may breach security simply by evading the light. Moreover, as with any illuminated source, visible-lighting sys- tems are hindered by limited reliability and duration for both the camera and the lighting source.
Image Contrast Enhancement (ICE™) Selections
AGC
Firefighter is visible with minimal contrast. Background of scene is washed out and nothing is visible through the window.
ICE™ Low
Firefighter and background are clearly visible with added contrast and edge enhancement. No visibility through the window.
ICE™ High
Maximum edge enhancement brings out details of firefighter and reveals elements in the distant background through the window.