3 ms·
Is RAM even fast enough? I remember reading somewhere that the high speed cameras have special cache-like memory on or near the processor that is faster write
by freedomben 2y ago
Is RAM even fast enough? I remember reading somewhere that the high speed cameras have special cache-like memory on or near the processor that is faster write than RAM. I can't find it now though so I'm taking it with a grain of salt.
- jsheard 2y agoMaybe in specialty cameras with ultra low maximum recording durations but it's usually just a bunch of DRAM, take this Phantom camera as an example. https://www.phantomhighspeed.com/products/cameras/tmx/7510 https://www.phantomhighspeed.com/products/cameras/tmx/7510 The spec sheet lists up to 512GB of RAM depending on configuration. There's no way you're scaling cache-like SRAM up to those numbers.
- Denvercoder9 2y agoThe necessary data rate for these photo finish cameras isn't actually that high, because every "frame" is only 1 pixel wide. If the photo is 10000 pixels high, you need a datarate of about 10 Gbit/s at 40000 fps and 24 bits/pixel. RAM is plenty fast enough for that. Regular high-speed cameras that shoot a video are a whole other story, though.