What are the 960 frames of slow motion for mobile phones?

960fps slow-motion photography has gained more exposure. The flagship products of Sony, Samsung and Huawei all expressed support for 960fps slow-motion photography. Among them, the new flagships of Samsung and Huawei support 960fps slow-motion photography with 720P resolution, while Sony du’s new flagship, Sony XZ2

Premium, has increased the resolution to

1080P

level.

So technically, how is 960fps slow-motion photography achieved?

First of all, according to the author's in-depth research, the slow-motion photography technology used by Samsung, Huawei or Sony all comes from Sony's new CMOS design. Compared with CMOS in the traditional sense, Sony added a DRAM layer (dynamic random access memory) to CMOS. This DRAM layer can be understood as the memory bar on the PC, which also allows CMOS to store images faster.

▲daoCMOS embedded DRAM layer

It is precisely because of the addition of the DRAM layer that it is possible to shoot slow-motion videos up to 960fps with CMOS on mobile phones. After all, compared to ordinary videos, the principle of slow-motion video is to record more images at the same time. What restricts the number of images is the storage speed. The addition of the DRAM layer solves this problem, allowing users to use their mobile phones to shoot slow-motion videos with higher frame rates.