Canon to develop a specialized high DR CMOS sensor
Canon USA has announced the development of a high DR sensor.
This smells similar to this Canon paper, however, there is no mention of global shutter in this announcement, so I'm confident that it's NOT the same as the paper. It could be based upon older technologies such as what Canon has developed for their video cameras.
Canon claims approximately 120db which would be around 20EV in dynamic range. It will be interesting to read the datasheet once this sensor is out in the wild.
Keep in mind going by the announcement, it appears as if the sensor takes more than one image and combines them for the total 120db HDR image, so for stills, there will most likely have to be intelligence to handle movement. Or it could be meant for video only applications because the white paper does specifically mention 60 or 30 FPS (HDR) operation.
The press announcement:
MELVILLE, NY, June 20, 2019 – The high demands of complex lighting and harsh environments require sensors capable of delivering high-dynamic range (HDR) and high-image quality in adverse temperature conditions. To answer this application need, Canon U.S.A. Inc., a leader in digital imaging solutions, is pleased to announce that its parent company Canon Inc. is pursuing development of the 3U3MRXSAAC, a 2.8-megapixel, 1/2.32-inch CMOS sensor ideal for HDR imaging.
“As Canon evolves in the sensor market, we are dedicated to utilizing our expertise to develop products built to meet current growing market trends,” said Kazuto Ogawa, president and chief operating officer, Canon U.S.A., Inc. “The 3U3MRXSAAC CMOS sensor under development reflects the continuation of our business strategy that leverages the high-quality imaging technology Canon is able to achieve.”
The 3U3MRXSAAC CMOS sensor being developed will be equipped with an HDR drive function that can achieve a wide range of 120 dB at low noise levels. This HDR function will reflect a greater ability to extract usable information even when there is a substantial difference between the lightest and darkest parts of an image. Even during normal drive operation, the sensor can achieve a dynamic range of 75 dB—greater than the sensors on many conventional digital cameras.
Additionally, the 3U3MRXSAAC CMOS sensor will also be capable of operating in environments with extreme temperatures ranging from -40 degrees Celsius to 105 degrees Celsius. Typically, in high-temperature conditions, the increase in dark current noise (noise that occurs due to heat, even when no light reaches the sensor) can affect the quality of the image. However, the 3U3MRXSAAC CMOS sensor will be equipped with functionality that helps correct black levels (the luminance level of the darkest portion of an image) in real-time to help maintain high image quality.
With a diagonal size of 1/2.32 inches (7.75 mm), the 3U3MRXSAAC CMOS sensor will feature approximately 2.8 million effective pixels (1936 x 1456), a pixel size of 3.2 μm x 3.2 μm and a frame rate of up to 60 fps (30 fps during HDR drive operation). The sensor will be compatible with the MIPI CSI-2 interface used by consumer-oriented cameras for a wide variety of purposes.
For more information on Canon sensors, please visit canon-cmos-sensors.com.
About Canon U.S.A., Inc.
Canon U.S.A., Inc., is a leading provider of consumer, business-to-business, and industrial digital imaging solutions to the United States and to Latin America and the Caribbean markets. With approximately $36 billion in global revenue, its parent company, Canon Inc. (NYSE:CAJ), ranks third overall in U.S. patents granted in 2018† and was named one of Fortune Magazine's World's Most Admired Companies in 2019. Canon U.S.A. is dedicated to its Kyosei philosophy of social and environmental responsibility. To keep apprised of the latest news from Canon U.S.A., sign up for the Company's RSS news feed by visitingwww.usa.canon.com/rss and follow us on Twitter @CanonUSA.
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