| dc.contributor.author |
Cheong, Jia Hao. |
| dc.contributor.author |
Lam, Yvonne Ying Hung. |
| dc.contributor.author |
Koh, Liang Mong. |
| dc.contributor.author |
Tiew, Kei Tee. |
| dc.date.accessioned |
2010-08-31T00:52:39Z |
| dc.date.available |
2010-08-31T00:52:39Z |
| dc.date.copyright |
2008 |
| dc.date.issued |
2010-08-31T00:52:39Z |
| dc.identifier.citation |
Cheong, J. H., Lam, Y. Y. H., Koh, L. M., & Tiew, K. T. (2008). Multi-bit sigma-delta beamformer with minimal dynamic focusing artifacts. IEEE International Conference on Electron Devices and Solid-State Circuits: Hong Kong, (pp.1-4). |
| dc.identifier.uri |
http://hdl.handle.net/10220/6371 |
| dc.description.abstract |
Sigma-delta beamformer (SDBF) was
proposed in recent year to increase the integration
level of an ultrasound imaging system. However, the
hardware efficient post-delay reconstruction structure
suffers from artifact problem when dynamic focusing
is applied. A sigma-delta beamformer based on
cascaded reconstruction has successfully corrected the
artifact problem by reducing the pre-delay
quantization noise level. Based on the same principle,
we developed a multi-bit SDBF. The multi-bit SDBF
provides comparable image quality as the pre-delay
reconstruction SDBF without any extra artifact
correction processing. It also reduces the operation
frequency as well as the power compared to the
single-bit SDBF. Real point and cyst phantom images
are presented to compare the performance of the
proposed beamformer with other existing techniques.
Synthesis results shows that the proposed beamformer
can save up to 78% of the power consumed by
pre-delay reconstruction SDBF. |
| dc.format.extent |
4 p. |
| dc.language.iso |
en |
| dc.rights |
© 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| dc.subject |
DRNTU::Engineering::Electrical and electronic engineering::Electronic systems. |
| dc.title |
Multi-bit sigma-delta beamformer with minimal dynamic focusing artifacts. |
| dc.type |
Conference Paper |
| dc.contributor.conference |
IEEE International Conference on Electron Devices and Solid-State Circuits (2008:Hong Kong) |
| dc.contributor.school |
School of Electrical and Electronic Engineering |
| dc.identifier.doi |
http://dx.doi.org/10.1109/EDSSC.2008.4760663 |
| dc.description.version |
Published version |
