Port Security & Surveillance

InGaAs SWIR imagers provide significant advantages over thermal imagers in low visibility conditions, such as fog, haze, or thermal crossover. Unlike thermal imagers, which detect temperature differences, SWIR imagers sense reflected light, offering imagery more akin to visible light, making scene interpretation and analysis much clearer. Thermal imagers are great for detecting the presence of objects, but SWIR cameras can identify them in detail, distinguishing between different types of objects like ships, vehicles, and personnel.

The ability of SWIR cameras to penetrate fog and haze offers superior performance over traditional imaging systems. This is demonstrated in various videos, including those of the San Francisco Bay Bridge and Berkeley landscapes, where SWIR cameras capture more detailed imagery through weather obstructions. SWIR cameras also excel in thermal crossover scenarios, where the object’s temperature is similar to the background, which can render thermal imagers ineffective. SWIR technology overcomes this by capturing reflected light, revealing details that are otherwise lost in thermal imaging.

Another benefit is that Sensors Unlimited SWIR cameras do not require cooling, making them cost-effective for both day and night use without needing to switch cameras. As SWIR technology continues to evolve, it is becoming more compact and efficient, enabling its use across various security platforms with enhanced performance. These cameras are a valuable tool for improving situational awareness and analysis in a variety of challenging environments.