5017 Series 5MP HD 360° Panoramic Surveillance Camera Lens

5017 Series 5MP HD 360° Panoramic Surveillance Camera Lens

360° panoramic surveillance lens is an important development direction in the security field. It aims to provide a wide monitoring field without blind spots, usually covering

the entire area of a room, hall, square, etc., greatly reducing the number of cameras required and reducing deployment and maintenance costs.

Implementation methods of 360° panoramic surveillance lens

There are mainly the following technical routes:

Fisheye Lens:

Principle: This is the most common way to achieve 360° panoramic view. Fisheye lens is an ultra-wide-angle lens. Through optical design, a hemispherical (180°) or even a

whole spherical (360°) scene in front is compressed onto a circular or elliptical image sensor.

Advantages: A single camera can achieve wide coverage, the cost is relatively low, the installation is simple, and the design can usually be very compact.

Disadvantages: The image will produce severe barrel distortion (objects at the edge of the picture will be distorted). Therefore, it is necessary to cooperate with a powerful

"dewarping" algorithm to restore the circular or elliptical image into a flat, recognizable view (such as panoramic view, multi-segmented view, PTZ (pan/tilt/zoom)

simulation view, etc.).

Application scenarios: Indoor environments such as small retail stores, offices, classrooms, elevators, halls, and some outdoor open areas, which do not require extreme

details but require comprehensive coverage.

Multi-sensor (multi-eye) stitching technology (Multi-sensor/Multi-imager):

Principle: This solution does not use a single fisheye lens, but integrates multiple (usually 2, 3, 4 or even more) independent camera modules (each module has its own lens

and sensor). These modules are usually wide-angle lenses, arranged at a certain angle, and their fields of view overlap each other. These independent image streams are

then stitched in real time through the camera's internal or back-end software to form a seamless 180° or 360° panoramic image.

Advantages:

Higher image quality: Since each sensor is responsible for only a part of the area, high-quality wide-angle lenses can be used, and the distortion is much smaller than that

of fisheye lenses. The stitched image has higher edge clarity and richer details.

Strong detail expression: Higher pixel density can be achieved. For example, four 2-megapixel cameras can be stitched into an 8-megapixel panoramic view, providing

finer details.

More flexible viewing angle: Some multi-sensor cameras allow users to adjust the angle of each sensor to adapt to different monitoring needs.

Disadvantages: Relatively high cost because it involves multiple sensors, lenses and more complex image processing chips. Installation and calibration may also be more

complicated than a single fisheye lens.

Application scenarios: Large squares, stadiums, parking lots, urban traffic intersections, commercial complexes, etc. require high image quality, large range and high detail

requirements.

Key technologies and characteristics of 360° panoramic monitoring lenses

Dewarping: It is the core technology for fisheye lenses. Excellent distortion correction algorithms can restore the real scene to the greatest extent and provide a variety of

display modes (such as panoramic straightening, four-screen splitting, PTZ local magnification, etc.).

High resolution: Whether it is fisheye or multi-sensor stitching, high-pixel sensors are required to ensure the details of 360° panoramic images. With the development of

technology, 360° cameras with 4K, 8K and even higher resolutions are becoming popular.

Low-light performance: Excellent 360° panoramic lenses need to provide clear color images at night or in low-light environments with the support of large aperture design

and high-performance sensors (such as starlight level and blacklight level technology).

AI intelligent analysis: Combined with artificial intelligence technology, 360° panoramic surveillance lenses can achieve more powerful functions:

Face recognition/human body detection: Identify and track people in large-scale monitoring.

Vehicle detection/license plate recognition: Monitor vehicles in parking lots and intersections.

Behavior analysis: Detect abnormal behaviors such as wandering, falling, intrusion, leaving objects, and taking objects.

Heatmap/Traffic Counting: Analyzes the density and movement of people in an area, commonly used in the retail industry.

Digital PTZ (ePTZ): Even with a fixed-mounted 360° panoramic camera, users can digitally zoom in and pan and tilt on the panoramic image to simulate the effects of a

traditional PTZ camera and view details of the area of interest.

Two-way audio: Some 360° panoramic cameras have integrated microphones and speakers, supporting two-way voice intercom for convenient remote communication

and deterrence.

IP and network transmission: The vast majority of 360° panoramic surveillance lenses are IP cameras, which transmit video streams over the network for easy remote access and management.

Local storage and cloud storage: Supports local storage on SD cards or data storage through cloud services to improve data security.

Advantages of 360° panoramic surveillance lenses

No blind spot coverage: Minimizes monitoring blind spots and provides comprehensive situational awareness.

Reduce the number of cameras: One 360° panoramic camera can replace multiple traditional cameras, thereby simplifying installation and reducing wiring and maintenance costs.

Improve efficiency: The entire area can be monitored through one interface, allowing security personnel to quickly detect abnormalities.

Post-event evidence collection: Provide complete historical videos to facilitate event backtracking and evidence collection.

Intelligent analysis: Combined with AI technology, more efficient early warning and management can be achieved.