In the last decade, biometric surveillance cameras have become increasingly common, making them essential for security in both public and private spaces. This article discusses the overall system design for CCTV networks and biometric surveillance and looks at the benefits and drawbacks of on-site physical CCTV systems versus cloud-based CCTV systems. It also provides an overview of facial recognition technology and how to develop a system prototype in a realistic environment.
Developing an overall system design for CCTV networks and biometric surveillance
CCTV systems are often used for traffic monitoring. They provide the ability to see what is happening in the street and record critical financial transactions. These systems are able to store images in multiple file formats that are proprietary to the surveillance equipment. In addition, advanced applications can interpret the video streams, making them extremely useful for a variety of purposes. Here are a few examples of how CCTV systems can be used.
CCTV systems enable constant surveillance of a specific area, which is helpful for responding to threats and hazards. These systems can record crime scenes to provide evidence for law enforcement and keep track of outbreaks of public health crises. Face biometrics, such as facial recognition, allow the video cameras to match faces to a database. The advanced versions of facial recognition can compare faces to a government or police database.
Choosing between on-site physical and cloud CCTV systems
There are two types of CCTV systems: cloud-based and on-site physical. Cloud-based systems use cloud storage to store the footage from your camera. Cloud cameras connect to the internet via a wireless connection, whereas traditional camera systems use wired connections and store video data on physical hard drives. Cloud cameras plug into a device called an edge gateway, which helps reduce bandwidth and storage. Cloud-based systems offer many of the benefits of cloud-based surveillance, including easy customization, regular firmware updates, and remote access.
Physical CCTV systems use on-site NVRs and must be installed and maintained on-site. They should be locked and stored in a secured cabinet. Cloud-based CCTV systems are easy to setup and operate over your existing IP network. However, they do require a powerful internet connection to access the footage. An unstable internet connection can also affect remote viewing. The security industry is following other industries by adopting cloud-based CCTV.
Face recognition technology
Facial recognition technology is a great way to reduce unnecessary human interaction and labor. It can also be a valuable tool in supporting medical efforts. Face recognition has a variety of uses and has been successfully used by law enforcement agencies to identify criminals and track down missing children. It has even been used to detect aging in children, which has helped find them even years after their disappearance. In addition, police can receive alerts about a person’s appearance and take immediate action if they are matched.
In order to determine who is in a camera’s view, the first step is facial recognition technology. Face recognition systems work by analyzing the image and marking certain landmarks on a person’s face. Some landmarks on a face are constant across generations and sizes, such as the distance between the eyes, the depth of the eye socket, and the shape of the nose. The software then compares this information to a database of known faces.
Developing a prototype system in a realistic environment
To develop a high-end biometric surveillance system, the team must use both hardware and software components. Hardware components include the biometric sensors and the computer software. This is a highly complex system with several factors that affect its performance. A high-end system can only be achieved in a controlled environment, since uncontrolled environments affect the input sensors. Low-light environments, for example, can negatively affect the matching accuracy of the biometric sensors. Finally, the FAR and FRR of the system to determine how accurate the biometric system will be.
The first module involves establishing the biometric template and evaluating feature values. The image of a specific attribute of a person is used as a biometric template. The biometric template is a binary representation of a particular point on the face’s periocular region. In the second module, decision-making is conducted based on the data obtained from the first three module.