HDR cameras live for an increasingly sensitive world of "images"

In the social media circle, this casual saying is said: "No picture, no truth." While this is not a serious situation, it suggests that in the modern digital connected world, visual capture and evidence become more important than just a few years ago. Applications such as cameras, driving recorders, and security surveillance cameras that are more widely used in industrial and private homes are the main drivers.

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In fact, we can see motion picture/video recordings in many aspects of our lives. Although the driving recorder has not yet become a standard vehicle, in order to ensure that it can be proved that it has not made mistakes and avoid insurance protection, drivers generally choose to install a driving recorder in the later stage in order to record a traffic accident or just record The general bad driving behavior. Motorcyclists and cyclists are also using cameras, not only for playback entertainment, but also as a means of capturing evidence to capture relevant evidence when colliding with a car.

Even in the professional field, daily events are becoming more and more common. First-aid personnel (especially the police) are equipped with cameras to record incidents in order to prove to internal supervisory agencies and the courts that they strictly abide by relevant procedures and policies.

All of the above use cases have one thing in common, that is, the lighting conditions are probably not very good, and it is difficult to capture high quality video. If you recall various traffic accidents and events that require police intervention, we will find that they usually occur in areas with poor lighting or extremely bright light, such as in a street or in a safely lit environment, or in a darkness. This means that obtaining high quality video evidence can be difficult. There are other factors that can also make the video quality poor, such as dark, dense fog, rain or sun glare.

In order to improve video quality, camera technology must be improved to be able to faithfully record scenes in very dark or very bright environments. On the technical side, this means that the camera must be able to perform high dynamic range (HDR) recording.

Fortunately, one of our latest digital image sensors, which will be on the market, excels in HDR capture. The AR0239 is a new 1/2.7-inch 2.3 megapixel (Mp) CMOS digital image sensor with an effective pixel array of 1936H x 1188V. It captures sharp, sharp digital images in challenging glare and low light.

Compatible with HiSPi/MiPi, the AR0239 features outstanding low-light performance, enhanced near-infrared (NIR) quantum efficiency (QE), and the ability to capture these high dynamic range scenes. In addition, because the frame rate reaches 90 fps, the sensor captures fast moving objects that are common in target applications and records them as clear 1080p video. The highly sensitive 3 μm x 3 μm back-illuminated (BSI) pixel in the AR0239 uses ON Semiconductor's DR-PixTM technology, which provides approximately 21% better sensitivity and 10% QE improvement over previous devices. The sensor also features advanced camera features such as binning and arraying, and an on-chip analog-to-digital converter (ADC) for easy use with 10-bit and 12-bit architectures.

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