Abstract
Automatic image registration algorithms that rely on a gradient descent based approach may fail when the initial misalignment between objects is large. The registration task is even more difficult for multi-modal images because of the non-linear relationship between the pixel intensities in the images to be aligned. In this paper we will present a multi-modal image registration algorithm which successfully registers 3D CT to 2D fluoroscopy data for large initial displacements between the images. The approach uses the conditional means (CM) of the joint probability distribution of the images to establish a model linear relationship between the pixel intensities of the images and then applies log-polar transforms (LPT) in the frequency domain to estimate the in-plane scale and rotation changes between the images. Our experimental results show that the proposed approach can increase the range of initial displacements for which the algorithm is able successfully register images by a factor of 4 when compared to the best of the existing gradient-descent based approaches.
| Original language | English |
|---|---|
| Title of host publication | ICECTE 2016 - 2nd International Conference on Electrical, Computer and Telecommunication Engineering |
| Place of Publication | United States |
| Publisher | IEEE, Institute of Electrical and Electronics Engineers |
| Pages | 1-5 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781509057856 |
| ISBN (Print) | 9781509057856 |
| DOIs | |
| Publication status | Published - 15 Mar 2017 |
| Externally published | Yes |
| Event | 2nd International Conference on Electrical, Computer and Telecommunication Engineering - Rajshahi, Bangladesh Duration: 8 Dec 2016 → 10 Dec 2016 |
Publication series
| Name | ICECTE 2016 - 2nd International Conference on Electrical, Computer and Telecommunication Engineering |
|---|
Conference
| Conference | 2nd International Conference on Electrical, Computer and Telecommunication Engineering |
|---|---|
| Abbreviated title | ICECTE 2016 |
| Country/Territory | Bangladesh |
| City | Rajshahi |
| Period | 8/12/16 → 10/12/16 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
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