An efficient method for model refinement in diffuse optical tomography

Optimization Approach for Image Forming in Ultrasound Transmission Tomography (UTT): Real Data Case

“…The idea of optimization approach, among the others [1][2][3][4][5][6][7][8], is very popular for the inverse problem's solution [9][10][11][12][13][14] and could be successfully applied in ultrasonic image reconstruction. This is not a new idea [2,9,15,16] and as a matter of fact is very simple.…”

Accurate reconstruction of the optical parameter distribution in participating medium based on the frequency-domain radiative transfer equation

“…The reconstruction of optical parameters in the participating medium is a typical inverse radiative problem encountered in retrieving highly-correlated parameters and has attracted significant attention in recent years. For instance, in many fields of engineering and technology, such as nondestructive testing, [6] optical tomography (OT), [7] infrared remote sensing, [8] information processing, [9] and combustion diagnosis, [10] the required optical parameters are unknown and need to be retrieved with the help of the probed radiative signals on the boundary and corresponding inverse theory. Among these applications, the OT has become a research hotspot in the field of the inverse radiative problem due to its unique advantages and wide potential applications.…”

“…Thus an effective forward model needs to be established to simulate the RTE in the participating medium. Theoretically speaking, the forward model applied to OT can be classified into three different techniques according to the incident laser sources: the continuous laser (steady RTE), [12][13][14] the pulsed laser (time-domain RTE), [15][16][17][18][19] and the modulated laser (frequency-domain RTE). [20][21][22][23] Among these three models, the frequency-domain model, which can avoid the technical limitations intrinsic to the use of the time-domain model and gives some additional phase information compared with the steady model, has been regarded as the most promising technique to solve the inverse problems of OT accurately and efficiently.…”