Samsung unveils HD image sensor for reversing cameras, surround view screens in cars – Technology News, Firstpost


Samsung Electronics is looking to expand its presence beyond the smartphone sector with the first car image sensor called ISOCELL Auto 4AC. The sensor is used in reversing cameras and surround view screens in cars and SUVs to deliver a high-definition input (1280 x 960 resolution) to the vehicle driver. Equipped with CornerPixel technology, the ISOCELL Auto 4AC is also said to enhance the driving experience as it provides a better field of vision for the driver.

Given road lighting situations, the eyes have time to adapt from time to time to rapid transitions from dimly lit roads to brighter settings. The new sensor stabilizes the lighting environment when the camera is fed. For the first time, the company has used CornerPixel technology to help reduce blind spots, even in extreme conditions. This technology has a specialized pixel structure that spreads LED light over a frequency of more than 90 Hz. It embeds two light emitting diodes, a 3.0 μm pixel and a 1.0 μm pixel, in one pixel range.

Samsung's new sensor stabilizes the camera's input during the rapid transition of the lighting environment from darkness to brightness.  Photo: Samsung / Daimler / Tech2

Samsung’s new sensor stabilizes the camera’s input during the rapid transition of the lighting environment from darkness to brightness. Photo: Samsung / Daimler / Tech2

LEDs capture images with different exposures simultaneously. The sensor enables smoother transitions between dark and bright areas and offers up to 120 dB HDR with minimal motion blur, preserving the details of the previous road. To minimize the flickering effect of LEDs on other vehicles in the road, the exposure time of a smaller LED can be extended so that the pulse LED does not appear flashing on the car camera screen. This provides a more pleasant viewing experience for the driver and more accurate image information about the LED-embedded objects so that the Car System can identify them.

Speaking about the sensor, Duckhyun Chang, head of sensor business at Samsung Electronics, said: “Starting with ISOCELL Auto 4AC, we plan to expand our automotive sensor range to include camera display systems (CMS), self-driving, and cabin interior monitoring.”

The 4AC meets the AEC-Q100 Grade 2 criteria, so it has an operating temperature range of -40 ° C to 125 ° C and has entered mass production.

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