Samsung's new ISOCELL sensor has on-board DRAM, shoots 960fps video
With the Galaxy S9
phones, the focus was on improving the camera. To that end, Samsung unveiled
the ISOCELL Fast 2L3 image sensor with on-board DRAM and 960fps video
recording.
The new ISOCELL
Fast 2L3 sensor has a 3-layer design. Usually, the first layer holds the pixels
that capture light, the second layer converts that into a digital information
to be sent to the chipset for processing and finally to the phone’s RAM.
Samsung has added a third layer, 512MB DRAM, that can quickly read and store
the data from the sensor – much faster than the chipset can.
This enables video
capture at 960fps for a cool 32x slow down. The sensor also features motion
detection so it can start the slow-motion recording faster than you can.
But this sensor
also takes better photos. It can move all data from the pixel layer to the DRAM
layer in 1/120th of a second, which reduces rolling shutter (the jello effect).
And at that speed,
it can snap several shots to be used for the 3D Noise Reduction in low-light or
for better HDR in the daylight.
The ISOCELL Fast 2L3 is a 12MP sensor with
1.4µm pixels, each of which works as a phase detection AF point – the so-called
Dual Pixel autofocus. The sensor is currently in mass production.
Note that, in the past, Samsung has used a
mix of in-house and Sony sensors, but they were built to have identical
performance.
Source: gsmarena
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