Title :
Quadrature-detector errors in scanning tomographic acoustic microscopy
Author :
Levy, S. ; Mayyappan, A. ; Wade, G.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
Holographic scanning laser acoustic microscopy which employs a quadrature detector has high spatially varying errors, because the real and imaginary components are detected by two sequential scans. A new technique for simultaneously detecting the real and imaginary components in a single scan which will remove the spatially varying errors is proposed. In addition, an estimation and correction algorithm for the remaining errors is presented
Keywords :
acoustic holography; acoustic microscopy; error analysis; error correction; laser beam applications; optical microscopy; error correction; error estimation; holographic scanning laser acoustic microscopy; quadrature detector errors; scanning tomographic acoustic microscopy; sequential scans; spatially varying errors; Acoustic propagation; Acoustic signal detection; Computer errors; Degradation; Error correction; Holography; Image reconstruction; Microscopy; Simultaneous localization and mapping; Tomography;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234093
