Tag Archives: lab

Phantom Slow Motion Camera Used to Study Coughing Reach!

Phantom Slow Motion Camera

Schlieren Imaging has always been a very narrow and specialized field of imaging. It can visualize air perturbations in a fluid-like way that can show the reach in this case of someone’s breath and heat dissipation to see if a mask makes a large enough difference in transmission of infected airborne particles compared to no covering.

By using a Phantom VEO4k 990 slow motion camera at 938fps and a speckled background with specialized angled lighting, researchers were able to test a variety of masks while coughing to see the effects.  You can watch the video posted here and also check out the full study available here if you want to dig deeper. → Continue Reading Full Post ←

NVIDIA Slow Motion Interpolation With AI Deep Learning Tech!

NVIDIA Slow Motion Interpolation

NVIDIA has been hard at work on the problem posed by high frame rate interpolation of video data shot on lower fps.  We have had this tech since the late 1990s with the advent of Twixtor and refined over the decades in systems like Twixtor Pro and Adobe’s Optical Flow in After Effects. You are still not getting real temporal detail data since the frames are created by extrapolating velocity and direction vectors plus pixel values between frames to get the result.

We explored this technique in our post on interpolation here and why it is no substitute from a real slow motion camera solution.  NVIDIA’s new method uses machine learning along with 11,000 videos to arrive at a more convincing result. Considering the relatively small sample size we can imagine a future where hundreds of thousands or millions of footage samples are used to generate near flawless interpolation. This technique takes some serious computation and data sets so as of now it is not really ready for the mass market but that could change with the cloud very soon. → Continue Reading Full Post ←

Samsung Exynos Camera Rumor With Super Slow Motion!

Samsung Exynos Camera

The folks at Mirrorless Rumors have a new story based on an anonymous source that claims to know information about a super camera being tested at Samsung’s labs that can do among other things 480fps at 1080p resolution.  Its also claimed to be 4k 120fps ready and using the Exynos 9810 SoC which is reserved for their high-end phones up to now.

These claims are too detailed and too extraordinary to be believed but the Exynos Chip should be able to process all of that data.  The Rumor also states that it will be an APS-C chip with ISOCELL Technology on a stacked design capable of 30.1 Megapixels or 6720*4480px at 30p frame rates. The camera is a prototype according to the source and it is not known if it will be released as a real product in the future. → Continue Reading Full Post ←

Chronos Kickstarter Camera One Year Later!

Chronos Kickstarter Camera

David Kronstein has published a walkthrough video of the Krontech warehouse, assembly installations, and offices located near Vancouver Canada, in what could be described as a rapid expansion of a startup that just a year ago was just coalescing.  With now 337 Chronos 1.4c cameras shipped to Kickstarter backers and also direct purchase buyers; this is a significant number of units for any high-speed camera and we can probably expect that number to increase!

David also goes shares his thanks to the people who helped make the camera project possible and where the company can grow from here. We expect great things from Krontech not that they have shown the ability to mass produce gear that works and as it continues to improve with software releases. We are excited about their future and congratulate them on their success thus far. → Continue Reading Full Post ←

iPhone X Slow Motion Samples 240fps!

Now that the iPhone X has been released to the public, it is time to examine its slow-motion quality when shooting at 240fps 1080p mode.  There is a lot of expectation for what this phone can do but in the end you will get a mild bump in camera quality compared to the iPhone 7 and the exact same camera module as the iPhone 8 Plus.

It is of note that the phone is smaller than the 8 Plus and that battery life should be about the same since the screen is not feeding that extra real estate.  We were very excited about having 1080p finally hitting 240fps on a phone but as you will see; it may not be as good as claimed.  Looks pretty close to 720p upscaled and quite soft which means information is being thrown away to have the high frame rates. → Continue Reading Full Post ←

Chronos 1.4 Software Update 0.2

Chronos 1.4 Software

The Chronos 1.4 Camera is getting its first firmware update from 0.1 to 0.2 to add a few feature, correct a few bugs and some interface changes.  The update is recommended for all owners and it is very easy to install. Be sure to have a FAT32 formatted USB stick in order to perform the update as it needs the root directory for file discovery.

We applied the update on our camera and were pleasantly surprised that the actual software update did not need the camera to be turned off after. It seems that the Chronos team is making updates on the internal SD memory and not on a firmware chip which also means you cannot brick the camera by updating. Very cool feature! → Continue Reading Full Post ←