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Approximated Volumetric Reconstruction from Projected Images

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Presentation on theme: "Approximated Volumetric Reconstruction from Projected Images"— Presentation transcript:

1 Approximated Volumetric Reconstruction from Projected Images
Final Presentation Sheng Xu Computer Integrated Surgery II May 10th, 2001 Wednesday, June 26, 2019Wednesday, June 26, 2019

2 Outline Project Description Demo Evaluation
Wednesday, June 26, 2019Wednesday, June 26, 2019

3 Goal: The treatment of AVM
Arteriovenous Malformations vascular disease Needle Tip Wednesday, June 26, 2019Wednesday, June 26, 2019

4 Algorithm: Intersection
X-ray Source object image Wednesday, June 26, 2019Wednesday, June 26, 2019

5 Program Demo Wednesday, June 26, 2019Wednesday, June 26, 2019

6 Evaluation Reconstruction Error Algorithm speed Memory requirement
Wednesday, June 26, 2019Wednesday, June 26, 2019

7 Reconstruction Error This algorithm always over estimates volume. The error depends on the following factors: The number of projections The angle between projections The shape of the object Wednesday, June 26, 2019Wednesday, June 26, 2019

8 Error : the Number of Projections
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9 Error: the Angle between Projections
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10 Error : the Shape of Object
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11 Performance: Speed & Memory
The algorithm’s running time depends on the resolution, the number of projectins and object’s size For a 15mm x 15mm x 15mm object, 0.5mm x 0.5mm x 0.5mm resolution, it can be done in less than 2 seconds on a Pentium II 233. The algorithm doesn’t need much temporary memory to do the calculation. Wednesday, June 26, 2019Wednesday, June 26, 2019

12 What have I learned Presentation PowerPoint
Wednesday, June 26, 2019Wednesday, June 26, 2019

13 Deliverables 1. Help Gabor with MICCAI paper 2. A new algorithm
3. A CAS Application for the treatment of AVM 4. Test results of phantom data and patient image data 5. Documentation of algorithm and codes. Wednesday, June 26, 2019Wednesday, June 26, 2019


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