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Questions tagged [video]

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0
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1answer
25 views

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

Suppose I have code to generate a bunch of frames, each of which is a depth map(I have access to the matrices which represent depth) which in turn is used to generate a point cloud. One frame would ...
0
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0answers
16 views

Open source tools for extracting hi-res images from video

I found recently an article in which they describe a technique to extract high resolution images from a standard quality videos. The technique exploits the fact that in a typical video the camera ...
1
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0answers
26 views

debugging VGA signal timings for 640x480 @ 60hz

I am trying to get started with implementing a basic display (i.e a simple red screen) onto a VGA monitor by programming a Xilinx spartan3a fpga for the same. I have studied about the signal timings ...
3
votes
1answer
204 views

Non real-time rendering on Unity3D

I made an audio visualizer using Unity3D (you can see it here) but I am not satisfied on the video quality, as the compression destroys the graphics. I recorded the screen during a real-time rendering....
1
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0answers
477 views

YUV (NV12) Chroma subsampling while converting from RGB image

I convert RGB input to YUV 420 semi-planar output using compute shader.Luma plane is straightforward as it maps 1:1 with RGB dimensions. As we know, NV12 packs Cb and Cr into one plane, which means ...
1
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0answers
63 views

Is 100 Hz really 100 Hz, or is it 99.97Hz

We are trying to check some hardware and our 100Hz video card is running at 99.97Hz. Maybe this is just the natural speed of the chip and it is called 100Hz. I would have thought, however, that ...
4
votes
1answer
193 views

Was Evans & Sutherland CT5 really created in 1981?

A few days ago I found a video on Twitter showing the Evans & Sutherland CT5 Flight Simulator system. It was labeled as 1981 footage and looked really amazing. The first time I saw similar 3D ...
3
votes
1answer
100 views

A way to save 360° panorama video

What is the best way to save video from faces of a cube? The render can produce 6 squares (90°x90°) of 1024x1024 resolution. Faces oriented along axies and only position is changed continuously. I ...
1
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0answers
341 views

Streaming video camera input from WebCamTexture on mobile? (Possibly via WebRTC or websocket?)

I'm building an application where I stream video camera feed from one mobile device to another in Unity. I tried searching for answers, but most of the topics deal with how to display a video stream, ...
3
votes
0answers
88 views

Converting from 360 degree vr to rectangular

What I am interested in doing is taking a 360 degree stereo video (Oculus Rift etc), and a description of how the viewing direction changes with time (rather than reading from gyroscopes) and then ...
6
votes
1answer
159 views

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

TWO PART QUESTION - We've all seen the movies/TV shows where the police/feds/spies use computer software to take a grainy photo and do a "clean-up" to see a better picture and more details. I assume ...
7
votes
3answers
280 views

How to denoise video?

Video noise is random and not correlated in time. I assume, the best method is using wavelet denoise in this case, right? If yes, how is wavelet denoise implemented for video? Is there something to ...