Sensors, Vol. 20, Pages 595: 3D Hermite Transform Optical Flow Estimation in Left Ventricle CT Sequences

Sensors, Vol. 20, Pages 595: 3D Hermite Transform Optical Flow Estimation in Left Ventricle CT Sequences Sensors doi: 10.3390/s20030595 Authors: Mira Moya-Albor Escalante-Ramirez Olveres Brieva Vallejo Heart diseases are the most important causes of death in the world and over the years, thestudy of cardiac movement has been carried out mainly in two dimensions, however, it is important toconsider that the deformations due to the movement of the heart occur in a three-dimensional space.The 3D + t analysis allows to describe most of the motions of the heart, for example, the twistingmotion that takes place on every beat cycle that allows us identifying abnormalities of the heartwalls. Therefore, it is necessary to develop algorithms that help specialists understand the cardiacmovement. In this work, we developed a new approach to determine the cardiac movement inthree dimensions using a differential optical flow approach in which we use the steered Hermitetransform (SHT) which allows us to decompose cardiac volumes taking advantage of it as a model ofthe human vision system (HVS). Our proposal was tested in complete cardiac computed tomography(CT) volumes ( 3D + t), as well as its respective left ventricular segmentation. The robustness tonoise was tested with good results. The evaluation of the results was carried out through errors inforwarding reconstruction, from the volume at time t to time t + 1 using the optical flow obtained(interpolation error...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research