Abstract

This paper presents a new backlight dimming method that applies segmentation-based clipped error control to liquid crystal displays. Clipped error control is the most important algorithm for power saving during backlight dimming. The proposed segmentation-based clipped error control algorithm considers the exact local distribution of an image using image segmentation, which enhances the image quality compared with existing methods. In addition, a binary search algorithm is applied to the proposed method for reducing the computational complexity. The experimental results showed that the average peak signal-to-noise ratio with the proposed method was up to 11.734 dB higher than those of conventional methods whereas the power consumption increased only slightly.

© 2014 IEEE

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  1. N. Chang, I. Choi, H. Shim, "DLS: Dynamic backlight luminance scaling of liquid crystal display," IEEE Trans. Very Large Scale Integr. (VLSI) Syst. 12, 837-846 (2004).
  2. C.-C. Lai, C.-C. Tsai, "Backlight power reduction and image contrast enhancement using adaptive dimming for global backlight applications," IEEE Trans. Consumer Electron. 54, 669-674 (2008).
  3. S.-J. Kang, Y. H. Kim, "Image integrity-based gray-level error control for low power liquid crystal displays," IEEE Trans. Consumer Electron. 55, 2401-2406 (2009).
  4. S.-J. Kang, Y. H. Kim, "Multi-histogram-based backlight dimming for low power liquid crystal displays," J. Display Technol. 7, 544-549 (2011).
  5. T. Kanungo, D. Mount, N. Netanyahu, C. Piatko, R. Silverman, A. Wu, "An efficient ${\rm k}$ -means clustering algorithm: Analysis and implementation," IEEE Trans. Pattern Anal. Mach. Intell. 24, 881-892 (2002).
  6. N. A. M. Isa, S. A. Salamah, U. K. Ngah, "Adaptive fuzzy moving K-means algorithm for image segmentation," IEEE Trans. Consumer Electron. 55, 2145-2153 (2009).
  7. A. Iranli, H. Fatemi, M. Pedram, "HEBS: Histogram equalization for backlight scaling," Proc. Conf. Design, Automation and Test in Europe (2005) pp. 346-351.
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  9. D.-C. Hwang, J.-S. Park, S.-C. Kim, D.-H. Shin, E.-S. Kim, "Magnification of 3D reconstructed images in integral imaging using an intermediate-view reconstruction technique," Appl. Opt. 45, 4631-4637 (2006).
  10. J. Someya, N. Okuda, H. Sugiura, "The suppression of noise on a dithering Image in LCD overdrive," IEEE Trans. Consumer Electron. 52, 1325-1332 (2006).
  11. D. Van de Ville, W. Philips, I. Lemahieu, R. Van de Walle, "Suppression of sampling moire in color printing by spline-based least-squares prefiltering," Pattern Recogn. Lett. 24, 1787-1794 (2003).
  12. G. Marchionini, G. Geisler, "The open video digital library," Digital Library Mag. 8, (2002).
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  14. S.-J. Kang, "Processor-based backlight dimming using computation reduction technique," J. Display Technol. 9, 819-824 (2013).
  15. S.-J. Kang, "SSIM preservation-based backlight dimming," J. Display Technol. 10, 247-250 (2014).

2014 (1)

2013 (1)

S.-J. Kang, "Processor-based backlight dimming using computation reduction technique," J. Display Technol. 9, 819-824 (2013).

2011 (1)

S.-J. Kang, Y. H. Kim, "Multi-histogram-based backlight dimming for low power liquid crystal displays," J. Display Technol. 7, 544-549 (2011).

2009 (2)

N. A. M. Isa, S. A. Salamah, U. K. Ngah, "Adaptive fuzzy moving K-means algorithm for image segmentation," IEEE Trans. Consumer Electron. 55, 2145-2153 (2009).

S.-J. Kang, Y. H. Kim, "Image integrity-based gray-level error control for low power liquid crystal displays," IEEE Trans. Consumer Electron. 55, 2401-2406 (2009).

2008 (1)

C.-C. Lai, C.-C. Tsai, "Backlight power reduction and image contrast enhancement using adaptive dimming for global backlight applications," IEEE Trans. Consumer Electron. 54, 669-674 (2008).

2006 (2)

J. Someya, N. Okuda, H. Sugiura, "The suppression of noise on a dithering Image in LCD overdrive," IEEE Trans. Consumer Electron. 52, 1325-1332 (2006).

D.-C. Hwang, J.-S. Park, S.-C. Kim, D.-H. Shin, E.-S. Kim, "Magnification of 3D reconstructed images in integral imaging using an intermediate-view reconstruction technique," Appl. Opt. 45, 4631-4637 (2006).

2004 (1)

N. Chang, I. Choi, H. Shim, "DLS: Dynamic backlight luminance scaling of liquid crystal display," IEEE Trans. Very Large Scale Integr. (VLSI) Syst. 12, 837-846 (2004).

2003 (1)

D. Van de Ville, W. Philips, I. Lemahieu, R. Van de Walle, "Suppression of sampling moire in color printing by spline-based least-squares prefiltering," Pattern Recogn. Lett. 24, 1787-1794 (2003).

2002 (2)

G. Marchionini, G. Geisler, "The open video digital library," Digital Library Mag. 8, (2002).

T. Kanungo, D. Mount, N. Netanyahu, C. Piatko, R. Silverman, A. Wu, "An efficient ${\rm k}$ -means clustering algorithm: Analysis and implementation," IEEE Trans. Pattern Anal. Mach. Intell. 24, 881-892 (2002).

1998 (1)

T.-S. Chen, C.-C. Chang, M.-S. Hwang, "A virtual image cryptosystem based upon vector quantization," IEEE Trans. Image Process. 7, 1485-1488 (1998).

Appl. Opt. (1)

Digital Library Mag. (1)

G. Marchionini, G. Geisler, "The open video digital library," Digital Library Mag. 8, (2002).

IEEE Trans. Consumer Electron. (1)

S.-J. Kang, Y. H. Kim, "Image integrity-based gray-level error control for low power liquid crystal displays," IEEE Trans. Consumer Electron. 55, 2401-2406 (2009).

IEEE Trans. Consumer Electron. (1)

N. A. M. Isa, S. A. Salamah, U. K. Ngah, "Adaptive fuzzy moving K-means algorithm for image segmentation," IEEE Trans. Consumer Electron. 55, 2145-2153 (2009).

IEEE Trans. Image Process. (1)

T.-S. Chen, C.-C. Chang, M.-S. Hwang, "A virtual image cryptosystem based upon vector quantization," IEEE Trans. Image Process. 7, 1485-1488 (1998).

IEEE Trans. Consumer Electron. (1)

J. Someya, N. Okuda, H. Sugiura, "The suppression of noise on a dithering Image in LCD overdrive," IEEE Trans. Consumer Electron. 52, 1325-1332 (2006).

IEEE Trans. Consumer Electron. (1)

C.-C. Lai, C.-C. Tsai, "Backlight power reduction and image contrast enhancement using adaptive dimming for global backlight applications," IEEE Trans. Consumer Electron. 54, 669-674 (2008).

IEEE Trans. Pattern Anal. Mach. Intell. (1)

T. Kanungo, D. Mount, N. Netanyahu, C. Piatko, R. Silverman, A. Wu, "An efficient ${\rm k}$ -means clustering algorithm: Analysis and implementation," IEEE Trans. Pattern Anal. Mach. Intell. 24, 881-892 (2002).

IEEE Trans. Very Large Scale Integr. (VLSI) Syst. (1)

N. Chang, I. Choi, H. Shim, "DLS: Dynamic backlight luminance scaling of liquid crystal display," IEEE Trans. Very Large Scale Integr. (VLSI) Syst. 12, 837-846 (2004).

J. Display Technol. (1)

S.-J. Kang, Y. H. Kim, "Multi-histogram-based backlight dimming for low power liquid crystal displays," J. Display Technol. 7, 544-549 (2011).

J. Display Technol. (1)

S.-J. Kang, "Processor-based backlight dimming using computation reduction technique," J. Display Technol. 9, 819-824 (2013).

J. Display Technol. (1)

Pattern Recogn. Lett. (1)

D. Van de Ville, W. Philips, I. Lemahieu, R. Van de Walle, "Suppression of sampling moire in color printing by spline-based least-squares prefiltering," Pattern Recogn. Lett. 24, 1787-1794 (2003).

Other (2)

T. H. Cormen, C. E. Leiserson, R. L. Rivest, C. Stein, Introduction to Algorithms (MIT Press, 2001).

A. Iranli, H. Fatemi, M. Pedram, "HEBS: Histogram equalization for backlight scaling," Proc. Conf. Design, Automation and Test in Europe (2005) pp. 346-351.

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