4D Dual-Tree Complex Wavelets for Time-Dependent Data

03/29/2021
by   Tatiana A. Bubba, et al.
0

The dual-tree complex wavelet transform (DT-ℂWT) is extended to the 4D setting. Key properties of 4D DT-ℂWT, such as directional sensitivity and shift-invariance, are discussed and illustrated in a tomographic application. The inverse problem of reconstructing a dynamic three-dimensional target from X-ray projection measurements can be formulated as 4D space-time tomography. The results suggest that 4D DT-ℂWT offers simple implementations combined with useful theoretical properties for tomographic reconstruction.

READ FULL TEXT

Please sign up or login with your details

Forgot password? Click here to reset