Sony has developed a new CMOS camera sensor for phones that could revolutionise smartphone photography.
As mentioned earlier, the addition of DRAM enables the new CMOS image sensor to attain impressive reading speeds for still image: 19.3 million pixels in only 1/120 of a second. Its DRAM layer, added to the conventional 2-layer stacked CMOS image sensor, makes it possible to capture still images of fast-moving subjects with minimal focal plane distortion, as well as shooting “super slow motion” movies.Sony revealed in a blog post that “in order to realize the high-speed readout, the circuit used to convert the analog video signal from pixels to a digital signal has been doubled from a 2-tier construction to a 4-tier construction”.Of course, for those who don’t speak technical jargon, the bottom line is this: Sony’s new sensor can capture images extremely fast. The new sensor packs 21.2 effective megapixels and can easily record 4K video at 60 fps or full HD (1080p) at 240 fps. The company is using 3D fabrication to layer a 125MB DRAM cache in between a conventional backside-illuminated image sensor and the accompanying processing circuitry. Moreover, this sensor blows every camera now in a smartphone out of the water. though Apple iPhone 7 and the Google Pixel can capture 1080p slow-motion video at 120fps, they are far behind what Sony has reached with its new sensor.
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The DRAM also allows the sensor to capture 1000fps video at 1080p HD resolution.If you are recording slow motion videos, feel free to adjust settings to automatically detect sudden movements.Reduced rolling shutter and super slow motion is nice, but what about the sensor’s other specifications?There is no word on when we might see this sensor in smartphones, but this technology should hit the market in the coming years.