Depth-resolving THz imaging with tomosynthesis.
We demonstrated a depth-resolved 3D imaging technique based on absorption contrast using tomosynthesis. Tomosynthesis is similar to computed tomography except that the number of projections is much smaller. We constructed a tomosynthesis imaging system, which detects a transmitted continuous THz wave. We applied a backprojection method that was suitable for the constructed detection configuration, to reconstruct an image. Using this system, we imaged a test sample made from paper and reproduced characters written by pencil.
Sunaguchi
Naoki
N
Yamagata University, Yonezawa, Yamagata, Japan. kuroiinazuma@gmail.com
Sasaki
Yoshiaki
Y
Maikusa
Norihide
N
Kawai
Mina
M
Yuasa
Tetsuya
T
Otani
Chiko
C
D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D007909:Lenses; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D055069:Terahertz Imaging / Q000295:instrumentation* / Q000379:methods