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5 votes

Was Evans & Sutherland CT5 really created in 1981?

The CT5 was designed before 1981. I started working at E&S in May 1981. The CT5 was fully designed by then and 3 had been built. All 3 were still at E&S and hadn't shipped yet when I started. ...
  • 51
5 votes
Accepted

Non real-time rendering on Unity3D

Yes, there's a better approach than using a screen recorder. You can capture frames directly inside Unity, using ScreenCapture.CaptureScreenshot. There's a choice ...
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3 votes

How to denoise video?

Elaboration on temporal solve: I don't have much concrete info for you, but I'm drawing from the idea of "temporal anti aliasing". Basically, if a camera was stationary, you could average pixel ...
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3 votes
Accepted

Animated rainbow distortion wave effect

The effect is called chromatic aberration; the way it’s usually done in games, and what’s being done there, is by reading the red / green / blue channels of an image at different offset positions. As ...
3 votes
Accepted

Was Evans & Sutherland CT5 really created in 1981?

After some searching on the internet, I am fairly certain that it was made in 1981 or at least the same decade. I have found multiple sources that indicate the CT5 was made in or around the year 1981. ...
  • 1,575
2 votes

What is the state-of-the-art on using computers to "clean-up" images?

The closest thing I know of to the "computer: enhance!" trope in real life is the family of Single Image Super-Resolution techniques. That page shows a number of examples of the results on various ...
2 votes

How to denoise video?

A fairly basic but effective technique is median filtering. For video, you can apply it (spatio)temporally by replacing the value of each pixel in each frame by the median of the values of the pixel (...
1 vote

Was Evans & Sutherland CT5 really created in 1981?

As John said, yes it was there because my first job was working on content for it. That was before 1981. The 'snake room' was about 20 feet from my office and I did many demos on that system. My ...
1 vote

Is it possible to decode and play e.g. 60fps video as 30fps, if computer is too slow for 60fps?

It is likely somewhat possible, depending on how the video was encoded. The player can easily skip displaying half the frames but that won't gain us much. What needs to happen is to skip decoding some ...
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1 vote

What would be an example of decoding-intensive video?

You could try to play 1080p and 2160p videos, possibly 60fps in YouTube. If you right-click on the playback window and click on "Stats for nerds" you will get more information about used video and ...
  • 121
1 vote

Rendering 3-D point clouds obtained from depth maps as a 2.5D video

There are plenty of algorithms for generating meshes from point clouds. I am going to suggest looking at the libraries CGAL and PCL, if only because their documentation has excellent references which ...
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1 vote

Rendering 3-D point clouds obtained from depth maps as a 2.5D video

Depending on your application, you could use image-based solutions that are much cheaper than meshing a uniformly sampled set of points. For example, you could use the depth map as a height map. ...
  • 301
1 vote

A way to save 360° panorama video

I would be tempted to use a solution which involves decoding a single rectangular video stream so you don't need any special video decoder. As you have said there will be performance penalties for ...
  • 2,244
1 vote

How to denoise video?

In 2009 it seems there was a development of an hierarchical and comparison motion detection algorithm that was proposed in this paper: Motion detection: fast and robust algorithms for embedded ...
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