Samsung wants to help upcoming smartphone cameras with new features, such as 8K video or an improved autofocus, with two new image sensors. On the one hand, the ISOCELL HP1 was presented, which offers an extremely high resolution of 200 MP. The 0.64μm small sensor pixels are read out individually or in groups depending on the light situation - as it is already common for other sensors.
Samsung calls the binning technology used ChameleonCell, which made our editors a bit suspicious at first, since it implies that the red/green/blue characteristic of the pixels is variable, but the pixel layout of the sensor seems to correspond to a classic Bayer pattern. When binning the 200 million pixels, they are either reduced by 2x2 to 50MP (1.28μm pixel size) or by a 4x4 readout to just 12.5MP with a pixel size of 2.56μm - according to Samsung, this is said to be the first sensor to support a merging of 16 sensor pixels into one. Thus, more light is captured in low-light situations, while the native resolution is supposed to provide detailed images in daylight.
In 8K video mode, the ISOCELL HP1 is read at a 50MP resolution (8192 x 6144), which is then reduced to 8K resolution (7680 x 4320) via a minimal crop. The maximum frame rate at 8K is 30 frames per second.
Samsung has integrated Dual Pixel Pro technology into the 1.0μm sensor pixels of the ISOCELL GN5 for a particularly fast and reliable phase detection autofocus. A so-called Front Deep Trench Isolation (FDTI) is also used to increase the full well capacity and minimize crosstalk within the pixels.
The two sensors are not yet in mass production, and will be found in future generations of smartphones.
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