Destin from SmarterEveryDay has posted an incredible video explaining how a lawn mower cuts grass. It is way more interesting and memorable than you might think. The killer feature of mowers turns out to be the air flow generated by the machine which makes it possible to cut the grass even. The clip goes into detail on how it works and in an excellent series of clips, shows how it looks like at 50,000fps using a Phantom Camera. Highly Recommended to watch and subscribe to SmarterEveryDay for more great content! -HSC
On Semiconductor has launched two new 4k ready CMOS global shutter sensors with new technology for reduced noise and improved image quality. The parts are geared to surveillance, automotive, consumer devices and industrial applications. Both sensors are able to do high frame rates at 4k at full resolution.
The XGS 8000 is an 8.8 Mp (4096 x 2160) 4k / UHD resolution Global Shutter CMOS image sensor in 1/1.1 inch optical format capable of 120fps at full 8.8MP resolution. This first one geared for smaller devices. The XGS 12000 is a 12.6 Mp (4096 x 3072) CMOS image sensor in 1″ inch format, supporting up to 90 fps readout at full 12.6MP resolution. This sensor is better for higher resolution solutions.
Recent advances in computation, simulation, and real-time rendering have become so advanced that some visual effects artists are opting for rendering everything with CGI instead of filming it outright. In making-off featurettes, we have seen the VFX teams scrap explosions, fluids, car crashes and actor stunts with CGI inserts that offer precise control over lighting, debris, motion, and quality which are all a crap shoot when filming with a real camera.
NVIDIA just released some demos of real-time ray tracing that surpass the best quality renderers of the 1990s with playable frame rates and ambient occlusion that in the right hands could be indistinguishable from many special effects in a film. The new RTX technology in their Volta architecture GPUs can do area shadows, true multi-level depth reflections, refraction and global illumination in real time 30+fps on a personal computer.
The folks at Vision Research creators of the Phantom line of superfast high-resolution cameras have unveiled their latest and greatest with the v2640, which takes the line to unprecedented levels of resolution and frame rate combinations. At a maximum res of 6,600fps at full resolution of 2048 x 1952 & 1080p Full HD @ 11,750 fps it makes your eyes water with time detail never before seen.
Of course, as it is customary, the camera is not listed with a price tag but expect it to be in the range of 100k USD if you venture out to get one. It is still a great deal for labs, engineers and imaging studios but surely out of reach for most lone experimenters. The sample video shows a water balloon being struck by an arrow at 17,000fps at HD 720p resolution which is mind bendingly cool. We will not list this camera on our guide as it exceeds the low cost threshold by a large margin.
Canon at CES 2018 was showing three CMOS sensor products that can be used in a variety of devices like DSLRs, Mirrorless, Surveillance, Manufacturing and Scientific experimentation. These new parts feature massive improvements in resolution, class-leading low light ability and a Global Shutter in one instance.
While none of the sensors could be named a really slow motion capable part, the 5 Megapixel 2/3″ sensor can scan the full chip at 120fps which may mean higher frame rates if using windowed resolution. The small size of the sensor also means it will need a lot of light to deliver a noise-free image. This sensor also sports a global shutter design which is perfect for high-speed applications.
Smarter Every Day has posted a very nice example video of audio master Gordon McGladdery recording audio to be incorporated into slow motion footage. Since recording real slow motion sound that is usable at super high speeds is an impossibility due to the undiscernable pitch that results from it, you need to get creative with some reverb, echo, pitch, and chamber audio effects in order to get a compelling final product. We are big fans of both their channels and make sure you check them out for supporting them.