The vehicle camera is mainly composed of lens group, image sensor (CIS) and digital image signal processing (DSP). Among them, lens group, glue material and image sensor are packaged to form the integrated module of camera movement. Image sensor is the core technology of vehicle-mounted camera.
01 Historical development
Vehicle camera, from the proposal of the concept in 1956, to the promotion and development of the first commercial application in 1991, and then to 2006, the birth of the concept of 360° panoramic vision system, and even now in line with the era of intelligent driving and the “double tuyere” of the Internet of vehicles, the hot global autonomous driving technology, so that the application of vehicle camera bloom.
From the initial single rearview camera, the development to the later 4~5 360° panoramic surround view cameras; In the context of intelligent driving today, influenced by functional requirements and regulations and policies, it will be a common phenomenon for “new power” cars to carry more than ten cameras now and even in the future.
No matter what kind of technology, there will be no small challenge in the application and popularization, and the same is naturally true for the application of vehicle cameras. For SONY autofocus camera with excellent technology and quality, can FCB-EV8530 meet the needs of car camera?
02 Difficulty of application
Difficulty 1: Compromise between function and size
From the most basic parking application to meet the advanced needs of “intelligent driving + communication and entertainment”, the resolution of the camera is required to be higher and higher. Driven by the demand of this market, 30W pixel, 100W pixel, 200W pixel, etc., have been moved into the car, and the vehicle camera based on 800W pixel has also been included in the future strategic planning of many new car companies.
However, for the limited car space, how to increase the pixels of the car camera at the same time, can ensure the product size and imaging effect, and carry more functions, naturally is a big problem.
Difficulty 2: Bad working environment
Compared with consumer electronic cameras, the working environment of vehicle cameras may be harsh, such as high temperature, low temperature, rain and fog, vibration, severe light scene changes (inside and outside the tunnel), etc., which are very likely to exist environmental factors, which pose no small challenges to the functional application of camera to assist drivers in driving.
With the improvement of autonomous driving level, the requirements for vehicle-mounted cameras for the purpose of driving safety are becoming higher and higher. How to obtain stable, reliable and clear surrounding environment data by vehicle-mounted cameras in the above harsh environment scenarios is an urgent product safety pain point that needs to be solved.
< In foggy weather >
Difficulty 3: Final imaging effect
For technology products, there seems to be a misconception that users and developers only know how to pile up hardware, and ignore the soft problems of testing and algorithms, system suitability and so on. This is especially obvious in the application of digital devices.
If the 800W pixel vehicle camera is rashly used, it will undoubtedly increase the amount of video data transmission, and the processing capacity of the system platform, as well as the development cost of the system will produce a great burden.
If the high-resolution camera and the system’s algorithms and testing capabilities do not match, it is undoubtedly a “small horse and cart” behavior.
Although using a higher configuration, but in the case of limited performance improvement, the so-called 8 megapixel car camera, is just a gimmick to attract users. Therefore, before choosing the right car camera, we should also look at the technical support and business cooperation provided by suppliers.
For high-resolution cameras, there is no doubt about the future application trend of “new power” vehicles, which is the inevitable result of “two-wheel drive” of technology and market.
03 SONY 800W pixel movement
SONY FCB-ER8530, using SONY’s latest Exmor R CMOS sensor and unique ISP (image signal processor), and equipped with 20x optical zoom lens, is a color camera module with stronger performance, can output 4K (3840*2160) ultra HD video.
< SONY FCB-ER8530 >