What is the Principle of the Rearview Camera System?

[OJosephine]

The principle of the rearview camera system is based on visual measurement rearview technology. It relies on a camera at the rear of the vehicle to display road condition information behind the car on the central display screen. The driver can move the square representing the vehicle body freely on the screen via the touchscreen. If the position is appropriate, the square will change from red to green. At this point, simply engage the reverse gear and control the vehicle speed to complete automatic reversing. Limitations of the rearview camera system: 1. Ice, snow, or mud covering the camera; 2. Dark environmental lighting; 3. Extreme conditions such as sun glare or headlights from a vehicle behind; 4. Deformation or damage to the rear of the vehicle; 5. Extremely high or low temperatures and significant temperature fluctuations.

[LeGemma]

Last time I got my car repaired, I specifically studied this. The reversing camera is essentially a small camera installed at the rear of the car, which can capture real-time footage of what's behind the vehicle. This camera is even more durable than a smartphone lens and isn't afraid of rainy weather. The captured footage is then transmitted via wiring to the central control screen with minimal delay. The most useful feature is the guidance lines—red, yellow, and green markers that act like game guides, directly showing you how far you are from obstacles. Some cars even come with a wide-angle function, allowing you to clearly see small stones near the wheels.

[EstherMarie]

I rely entirely on this thing for reversing! The principle is that there's a waterproof camera installed at the rear of the car, which automatically activates every time I shift into reverse gear. The footage captured by the camera is transmitted to the central control screen via a dedicated line, displaying in real-time just like watching a live stream. The key feature is those dynamic trajectory lines that curve with the steering wheel—they twist exactly as much as you turn the wheel, making it super smart. Two winters ago, when there was an ice pillar behind my parking spot, it was the flashing red warning on the screen that saved me from hitting it.

[Finley]

As a father of two, I value this feature the most. Simply put, it works through the combination of a rearview camera, image processor, and display screen. A regular camera only shows a straight view, but a 180-degree wide-angle one can spot kids darting out from the side. The chip processes images incredibly fast—the display pops up the moment you shift into reverse. Paired with radar, it's even more reliable. When you're within 30 centimeters of an obstacle, the alarm sounds like an ambulance siren that won't stop.

[JosiahAnn]

Let's chat about this, old-timers. The earliest reversing cameras had pixelation like mosaics, but now they've upgraded to high-definition night vision. The principle uses CMOS sensors for imaging, which are more cold-resistant than traditional CCDs. The transmission lines used to be prone to interference, causing snowflake noise, but now with coaxial cables and shielding layers, it's rock solid. The auxiliary line algorithms have also improved—when I reverse my pickup truck, it can even calculate the swing angle of the tow hitch accurately.

[AngeloMarie]

The reversing camera is like giving the car a rear-view eye. At its core is the fisheye lens mounted on the rear, capable of capturing a 170-degree field of view. The image processor is responsible for correcting distorted images, otherwise, you'd see a funhouse mirror effect. Modern models have introduced new features, some equipped with cleaning nozzles to prevent dirt buildup, while others use virtual perspectives to synthesize a bird's-eye view. The most considerate feature is the night mode, which automatically brightens the image in low-light conditions, making it clearer than what the human eye can see.