Questions tagged [video-processing]

Algorithms for processing video signals i.e. sequence of images either for enhancements, conversions or analysis of objects within it.

Filter by
Sorted by
Tagged with
1
vote
0answers
1k views

Calculate total bit rate

I want to calculate the total bit rate of a video system. In order to calculate the total bit rate for a 1080/50p video system(4:2:2) we need: ...
1
vote
4answers
1k views

Decompose video frames into slices

I am working on a video motion feature implementation. I am implementing a work in a research paper. What I want to implement is this: The frames contained in a video clip can be thought of as a ...
5
votes
1answer
191 views

Representation of frame image pixels

In paper Human identification using gaits Section 3.2, the authors explain how to represent a 3D image (x,y,t) into 2D image with (x,t) ; (y,t) denoted 1D signals. I have a conceptual doubt which is ...
2
votes
1answer
92 views

Can anyone suggests some basic readings for video processing?

Actually, I am new to this field and would like to work on a project in Video processing. I have a little background in Image processing but would like to study further in video processing. So, If ...
5
votes
1answer
2k views

What happens when we Fast Forward the Video

I've been involved in Image Processing kind of project for the last couple of month, before which i had no experience in Image processing. While filtering the image today i had a thought what exactly ...
2
votes
1answer
126 views

Projection of 2D signal

Paper describes that a 2D signal(say video) can be projected to 1D for time series analysis by using a transformation function fx=Ax+constant and ...
4
votes
2answers
910 views

differences in fundamental frequency/pitch between music and speech

I am developping a program, that extracts very expressive frames from a video (meaning: frames, which could summarize a video) for a university seminar. One of my ideas was, to analyze the audio data (...
2
votes
1answer
1k views

Matlab video processing of Contracting tissues. how to analyze movement?

I'm trying to write a code The helps me in my biology work. Concept of code is to analyze a video file of contracting cells in a tissue Example 1 Example 2: youtube.com/watch?v=uG_WOdGw6Rk And ...
6
votes
1answer
487 views

Non-orthogonal basis which offers better energy compaction in image compression

I am aware of image-independent basis, i.e. DCT, and image-dependent basis, i.e. Karhunen–Loève, which are used in compacting energies for image compression. These bases are orthorgonal. Are there ...
8
votes
1answer
513 views

Extremely computationally intensive image/video compression schemes which offer better compression than industry standard JPEG/H.264

I am trying to search for image/video compression schemes which offer superior compression performance (holding image quality as constant) when compared to widely adopted industry standards (i.e. JPEG/...
3
votes
1answer
813 views

Lip sync over IP

What are the most used techniques for lip sync (audio/video sync) for conferencing over IP (and related issues with playout buffering)? I could find a lot of paper about audio intrastream ...
17
votes
3answers
10k views

How do the motion vectors work in predictive coding for MPEG?

In MPEG, there is a process where an image is broken up into macroblocks and a motion vector is computed for each of those macro blocks. You then transmit these vectors, along with the prediction ...
1
vote
0answers
121 views

Slow Scan TV Documentation

I am looking for information on how to decode slow scan TV signals, which is a method of transmitting static images using everyday FM radio. I have seen software but I don't understand how to start. ...

1 2
3