
Proceedings Paper
Noise reduction effect in super-high resolution LCDs using independent sub-pixel driving technologyFormat | Member Price | Non-Member Price |
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Paper Abstract
We have developed and reported a super-high resolution liquid crystal display (SHR-LCD) using a new resolution
enhancement technology of the independent sub-pixel driving (ISD) that utilizes three sub-pixels in each pixel
element. This technology realizes the three-times resolution enhancement of monochrome LCDs, and improves the
depiction ability of detailed shape such as micro-calcifications of a mammography and bone structures.
Furthermore, the ISD technology brings not only resolution enhancement but also noise reduction effect by the
high-resolution data sampling in displaying the clinical images.
In this study, we examined the efficacy of the newly developed LCDs from the noise power spectrum
measurement (NPS), the perceptual comparison of the phantom images and the clinical images. A 15 mega-pixel
(MP)SHR-LCD out of a 5MP LCD and a 6MP SHR-LCD out of a 2MP LCD were used for the measurement and
the evaluation. In the NPS measurements, the noise of all the SHR-LCDs was improved obviously. The
improvement degree of the NPS varied according to the sub-sampling ratio of the data sampling implemented
during the image displaying, and the 6MP LCD showed higher improvement. In the perceptual evaluation of the
quality-control phantom images and the low-contrast images of the micro-calcifications of the mammography, all
the SHR-LCDs provided higher performance than the conventional LCDs. These results proved that the SHR-LCDs
using the ISD technology had the excellent ability to display the high-resolution clinical images.
Paper Details
Date Published: 6 March 2008
PDF: 8 pages
Proc. SPIE 6917, Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment, 69171F (6 March 2008); doi: 10.1117/12.770848
Published in SPIE Proceedings Vol. 6917:
Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment
Berkman Sahiner; David J. Manning, Editor(s)
PDF: 8 pages
Proc. SPIE 6917, Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment, 69171F (6 March 2008); doi: 10.1117/12.770848
Show Author Affiliations
Katsuhiro Ichikawa, Kanazawa Univ. (Japan)
Yoshikazu Nishi, Totoku Electric Co., Ltd. (Japan)
Shigeo Hayashi, Totoku Electric Co., Ltd. (Japan)
Yoshikazu Nishi, Totoku Electric Co., Ltd. (Japan)
Shigeo Hayashi, Totoku Electric Co., Ltd. (Japan)
Published in SPIE Proceedings Vol. 6917:
Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment
Berkman Sahiner; David J. Manning, Editor(s)
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