Questions tagged [reconstruction]
The reconstruction tag has no usage guidance.
6
questions
7
votes
1answer
2k views
Random sampling vs uniform sampling
In this paper of Lustig, he speaks about a something which appears unintuitive: sampling at random may exhibit better performance than sampling uniformly. I tried to understand this starting from page ...
2
votes
2answers
137 views
Method of reconstructing a band-limited signal from discrete samples
I understand current cell phones use digital communications. Given that this industry brings in billions of dollars each year, there is much incentive to get the best performance possible. So what ...
8
votes
3answers
423 views
Signal values we will 'miss' between sampling instances during sampling of band limited signals
According to the Nyquist–Shannon sampling theorem, any continuous time signal with a bandwidth $B$ smaller than Nyquist frequency $f_N=f_s/2$ (with $f_s$ the sampling frequency), which is sampled at ...
4
votes
3answers
2k views
Gradient Domain Reconstruction - Scaling Problem
I am implementing reconstruction of image from gradient domain. This requires solving the following partial differential equation (a Poisson equation) on a 2D grid:
$$\nabla^{2}I=\mathbb{div} G$$
$\...
1
vote
1answer
267 views
What Are the Types of Deconvolution?
I am totally new to image processing and wanted to ask you if you could confirm what I understood. It is about deconvolution:
From what I read we find 2 main types of deconvolution:
1. Analytical
<...
0
votes
2answers
1k views
What is the difference between image restoration and image reconstruction?
I am new to image processing. I don't know whether this is the right place to ask, but what is the difference between image restoration and image reconstruction?
