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Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

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Generic-type hierarchical multi digital signal processor system for hard-field tomography.

Sergio Garcia Castillo¹, Krikor B Ozanyan

¹Sensors, Imaging & Signal Processing Group, School of Electrical Engineering and Electronics, The University of Manchester, Manchester, United Kingdom.

The Review of Scientific Instruments

|June 8, 2007

Summary

This study presents a new hierarchical multi-digital signal processor system for parallel processing in hard-field tomography. The system enables high-speed data acquisition and processing for applications like temperature mapping.

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Area of Science:

Engineering
Computer Science
Physics

Background:

Hard-field tomography requires efficient parallel multichannel data acquisition and processing.
Existing systems may lack modularity and software-configurable processing.

Purpose of the Study:

To design and implement a hierarchical multi-digital signal processor system for advanced tomography applications.
To create a modular and expandable tomography system with software-defined data processing.

Main Methods:

Development of a hierarchical multi-digital signal processor architecture.
Implementation of modular and expandable hardware with software-configured data processing modalities.
Utilizing digital lock-in detection for ac measurements and data extraction.

Main Results:

Achieved a data frame rate of up to 250 kHz through optimized circuit configuration and data flow management.
Successfully demonstrated the system's capabilities in a guided path tomography case study for temperature mapping.
Extracted temperature-induced resistance changes from 32 non-interacting transducers.

Conclusions:

The developed hierarchical multi-digital signal processor system offers a flexible and high-performance solution for hard-field tomography.
The modular design and software configurability allow adaptation to diverse data processing needs.
The system effectively enables precise measurements and visualization for applications such as temperature mapping.