From HD to 4K: discover more detail
The resolution of a camera indicates its ability to recognize fine details of an object, such as for example a vehicle license plate. Looking at a scene, a similar field of view at higher resolution, i.e. with more pixels, makes it easier to recognize and positively identify the target accurately.
Towards higher resolution
Today, video security is following the same trends towards higher resolution as the broadcasting and photographic industries. Sony has created a new generation of advanced imaging devices which combine very high resolution with corresponding advances in low-light sensitivity. One example is Sony’s Exmor CMOS sensors that also feature in professional cameras for film, TV, medical and machine vision applications.
Greater clarity, lower costs
The extra resolution of 4K also brings attractive cost-saving opportunities to commercial companies and public sector organizations. A single 4K camera offers the same level of detail at two times the field of view of a Full HD camera. Or twice the resolution at the same field of view. Using video management software, an operator can zoom in digitally to inspect fine details in a small portion of the 4K image.
An even more recent innovation is the Sony SNC-WL862 multi-sensor camera that features four independent, fully repositionable 5 megapixel sensors. This provides a total image resolution of 20 megapixels, while allowing a single camera to view four different regions simultaneously from a single IP address. This lowers installation time and infrastructure costs as well.
Monitoring with more intelligence
Increased resolution of surveillance solutions is key in today’s data-driven world. Teamed with powerful video analytics, it can help retailers, transport hubs or event venues to understand the large-scale movements of thousands of visitors.
To learn more about the advantages and typical use cases of different video image resolutions, download our article "From HD to 4K":Download article