Around View Monitor / 360-Degree Camera System

The Around View Monitor (AVM) system, commonly referred to as a 360-degree camera system, is a parking assistance feature that uses multiple wide-angle cameras working in tandem to give drivers an all-round, top-down view of the vehicle's surroundings. It is essential for eliminating blind spots and enhancing safety when manoeuvring in tight spaces.

💡 Operating Principle: From "Fragments" to a "Bird's-Eye View"

Its core technology lies in stitching together images captured by multiple cameras into a single, seamless panoramic display.

• Hardware Setup: The system typically comprises 4 to 8 ultra-wide-angle fisheye cameras mounted on the vehicle's front, rear, and sides (such as underneath the side mirrors), paired with an Electronic Control Unit (ECU) for image processing and the in-car infotainment display.

• Image Processing: Once the cameras capture the feeds, the ECU runs a series of processes—including distortion correction (rectifying fisheye curvature), perspective transformation (converting feeds into an overhead angle), and image stitching (blending seams and overlaps)—to generate a seamless 360° overhead view around the car. Higher-end systems also feature 3D rendering, allowing drivers to view the vehicle's perimeter from virtually any angle.

🔧 Key Functions and Everyday Use

The surround-view system operates primarily at low speeds and during parking manoeuvres, offering essential features such as:

• Panoramic Bird's-Eye View: Displays a real-time overhead view of the car and its immediate surroundings on screen, helping drivers park accurately within narrow parking bays and significantly reducing the risk of kerb rashes and minor scrapes.

• Dynamic Guidelines: Overlays active trajectory lines on the camera feed that bend in real time with steering inputs to predict the vehicle's path.

• Intelligent Safety Integration: Advanced iterations can detect pedestrians and nearby obstacles to trigger alerts, integrating seamlessly with parking sensors to provide both audible and visual warnings.

Technological Evolution: This technology was first pioneered and mass-produced by Nissan in 2007, making its debut on Infiniti models. Today, it has become widespread, trickling down from luxury marques to mainstream family cars. Relevant industry standards (such as JT/T 1523—2024) have also been established to standardise its performance.

💡 Handy Tips: Not Entirely Foolproof

• Blind Spots Remain: Despite being marketed as an "all-round view", subtle blind spots can still exist directly below the front bumper, flush against the rear tailgate, and along the camera stitching seams; drivers should never rely on the display exclusively.

• System Latency Risks: Low-quality or older units may suffer from display lag or screen stutter. There have been official recall cases where slow system boot-up delayed the reverse camera feed. Under certain conditions, software "drift" may also cause misaligned image stitching.