Frequency shifting model for diffuse optical tomography

The Diffuse Optical Tomography (DOT) imaging modality is an interesting research field for researchers since it has uncertainties in the solution space. DOT unsolved scientific problem. Inverse problem and image reconstruction have never been of their best quality. Reconstructed images low spatial resolution. scattering nature low-energized diffusive light obscuring effect modality. 3 functional sub-branches which are Continuous Wave, Time-Resolved, Frequency-Domain. In this work, one new approach to Frequency Domain (FDDOT) biomedical optic presented readers. shifting data were added forward model source-detector couplings several voxels. 100 MHz center core modulation frequency was selected as frequency. 169 matches used on back-reflected geometry. Absorption coefficient µa 0.1 cm−1. Scattering µs 1-µm x, y, z cartesian grid coordinates each direction tissue-like simulation media. A total shifts 5 Hz step. 2 inclusion objects embedded inside phantom be reconstructed. Their optical absorption = 0.7 Two successfully reconstructed with contrast noise ratio (CNR) position error. technique first applied FDDOT here work. This increased number equations problem; hence helping solve inverse more accurately. positive using methodology observed. Differentiation inclusions completed illustrated different scenarios compared other. scenario, only match. second additional shifted frequencies over added. It seen that scenario superior general concept methodology. work shows shift might future devices.