Abstract

Local backlight dimming technology is a two-fold improvement for LED backlit LCD screens that allows to reduce power consumption and increase visual quality. This paper presents a fast version of an iterative backlight dimming algorithm based on gradient descent search. The speed is increased by exploiting the local uniformity of backlight to reduce the complexity for determining the optimal backlight of a given image. The algorithm is adapted to video sequences by using the backlight of the previous frame as a starting point to calculate the backlight for the current frame. Fast variations of backlight dimming over time can produce a visually annoying flicker artifact. To avoid this artifact, a control mechanism is also proposed.

© 2013 IEEE

PDF Article

References

  • View by:
  • |
  • |

  1. M. Anandan, "Progress of LED backlights for LCDs," J. Soc. Inf. Display 16, 287-310 (2008).
  2. N. Burini, E. Nadernejad, J. Korhonen, S. Forchhammer, X. Wu, "Modeling power-constrained optimal backlight dimming for color displays," J. Display Technol. 9, 656-665 (2013).
  3. M. Crawford, "Leds for solid-state lighting: Performance challenges and recent advances (Invited Paper)," IEEE J. Sel. Topics Quantum Electron. 15, 1028-1040 (2009).
  4. H. Seetzen, W. Heidrich, W. Stuerzlinger, G. Ward, L. Whitehead, M. Trantacoste, A. Ghosh, A. Vorozcovs, "High dynamic range display systems," ACM Trans. Graphics 23, 760 (2004).
  5. H. Chen, J. Sung, T. Ha, Y. Park, "Locally pixel-compensated backlight dimming on LED-backlit LCD TV," J. Soc. Inf. Display 15, 981 (2007).
  6. H. Cho, O.-K. Kwon, "A backlight dimming algorithm for low power and high image quality LCD applications," IEEE Trans. Consum. Electron. 55, 839-844 (2009).
  7. M. Albrecht, A. Karrenbauer, T. Jung, C. Xu, "Sorted sector covering combined with image condensation—An efficient method for local dimming of direct-lit and edge-lit lcds," IEICE Trans. Electron. E93C, 1556-1563 (2010).
  8. X.-B. Zhang, R. Wang, D. Dong, J.-H. Han, H.-X. Wu, "Dynamic backlight adaptation based on the details of image for liquid crystal displays," J. Display Technol. 8, 108-111 (2012).
  9. X. Shu, X. Wu, S. Forchhammer, "Optimal local dimming for LC image formation with controllable backlighting," IEEE Trans. Image Process. 22, 166-173 (2013).
  10. C. Mantel, N. Burini, E. Nadernejad, J. Korhonen, S. Forchhammer, J. M. Pedersen, "Controlling power consumption for displays with backlight dimming," J. Display Technol. (2013).
  11. C. Poynton, A Technical Introduction to Digital Video (Wiley, 1996) pp. 95.
  12. A.-L. Cauchy, "Méthode générale pour la résolution des systèmes d'équations simultanées," Comp. Rend. Sci. Paris 536-538 (1847).
  13. W. H. Press, S. A. Teukolsky, W. T. Vetterling, B. P. Flannery, Numerical Recipes in C (Cambridge Univ., 1992).
  14. S.-J. Kang, S. I. Cho, S. Yoo, Y.-H. Kim, "Scene change detection using multiple histograms for motion-compensated frame rate up-conversion," J. Display Technol. 8, 121-126 (2012).
  15. H. Chen, T. H. Ha, J. Sung, H. R. Kim, B. H. Han, "Evaluation of LCD local-dimming-backlight system," J. Soc. Inf. Display 18, 57 (2010).
  16. J. D. Bullough, K. S. Hickcox, T. R. Klein, N. Narendran, "Effects of flicker characteristics from solid-state lighting on detection, acceptability and comfort," Lighting Res. Technol. 43, 337-348 (2011).
  17. A. B. Watson, Handbook of Perception and Human Performance (Wiley, 1986).
  18. A.A. Michelson, Studies in Optics (Univ. of Chicago, 1927).
  19. F.-C. Lin, Y.-P. Huang, L.-Y. Liao, C.-Y. Liao, H.-P. D. Shieh, T.-M. Wang, S.-C. Yeh, "Dynamic backlight gamma on high dynamic range LCD TVs," J. Display Technol. 4, 139-146 (2008).
  20. S.-E. Kim, J.-Y. An, J.-J. Hong, T. W. Lee, C. G. Kim, W.-J. Song, "How to reduce light leakage and clipping in local-dimming liquid-crystal displays," J. Soc. Inf. Display 17, 1051 (2009).
  21. S.-J. Kang, Y. H. Kim, "Multi-histogram-based backlight dimming for low power liquid crystal displays," J. Display Technol. 7, 544-549 (2011).
  22. Kodak True Color Image Suite http://r0k.us/graphics/kodak/.
  23. Consumer Digital Video Library (2010) http://www.cdvl.org.
  24. Technische Universitaet Muenchen Test Sequences ftp://ftp.ldv.e-technik.tu-muenchen.de/pub/test_sequences/.
  25. Sita Sings the Blues http://archive.org/details/Sita_Sings_the_Blues.

2013 (3)

X. Shu, X. Wu, S. Forchhammer, "Optimal local dimming for LC image formation with controllable backlighting," IEEE Trans. Image Process. 22, 166-173 (2013).

C. Mantel, N. Burini, E. Nadernejad, J. Korhonen, S. Forchhammer, J. M. Pedersen, "Controlling power consumption for displays with backlight dimming," J. Display Technol. (2013).

N. Burini, E. Nadernejad, J. Korhonen, S. Forchhammer, X. Wu, "Modeling power-constrained optimal backlight dimming for color displays," J. Display Technol. 9, 656-665 (2013).

2012 (2)

2011 (2)

J. D. Bullough, K. S. Hickcox, T. R. Klein, N. Narendran, "Effects of flicker characteristics from solid-state lighting on detection, acceptability and comfort," Lighting Res. Technol. 43, 337-348 (2011).

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

2010 (2)

H. Chen, T. H. Ha, J. Sung, H. R. Kim, B. H. Han, "Evaluation of LCD local-dimming-backlight system," J. Soc. Inf. Display 18, 57 (2010).

M. Albrecht, A. Karrenbauer, T. Jung, C. Xu, "Sorted sector covering combined with image condensation—An efficient method for local dimming of direct-lit and edge-lit lcds," IEICE Trans. Electron. E93C, 1556-1563 (2010).

2009 (3)

M. Crawford, "Leds for solid-state lighting: Performance challenges and recent advances (Invited Paper)," IEEE J. Sel. Topics Quantum Electron. 15, 1028-1040 (2009).

H. Cho, O.-K. Kwon, "A backlight dimming algorithm for low power and high image quality LCD applications," IEEE Trans. Consum. Electron. 55, 839-844 (2009).

S.-E. Kim, J.-Y. An, J.-J. Hong, T. W. Lee, C. G. Kim, W.-J. Song, "How to reduce light leakage and clipping in local-dimming liquid-crystal displays," J. Soc. Inf. Display 17, 1051 (2009).

2008 (2)

2007 (1)

H. Chen, J. Sung, T. Ha, Y. Park, "Locally pixel-compensated backlight dimming on LED-backlit LCD TV," J. Soc. Inf. Display 15, 981 (2007).

2004 (1)

H. Seetzen, W. Heidrich, W. Stuerzlinger, G. Ward, L. Whitehead, M. Trantacoste, A. Ghosh, A. Vorozcovs, "High dynamic range display systems," ACM Trans. Graphics 23, 760 (2004).

1847 (1)

A.-L. Cauchy, "Méthode générale pour la résolution des systèmes d'équations simultanées," Comp. Rend. Sci. Paris 536-538 (1847).

ACM Trans. Graphics (1)

H. Seetzen, W. Heidrich, W. Stuerzlinger, G. Ward, L. Whitehead, M. Trantacoste, A. Ghosh, A. Vorozcovs, "High dynamic range display systems," ACM Trans. Graphics 23, 760 (2004).

Comp. Rend. Sci. Paris (1)

A.-L. Cauchy, "Méthode générale pour la résolution des systèmes d'équations simultanées," Comp. Rend. Sci. Paris 536-538 (1847).

IEEE J. Sel. Topics Quantum Electron. (1)

M. Crawford, "Leds for solid-state lighting: Performance challenges and recent advances (Invited Paper)," IEEE J. Sel. Topics Quantum Electron. 15, 1028-1040 (2009).

IEEE Trans. Consum. Electron. (1)

H. Cho, O.-K. Kwon, "A backlight dimming algorithm for low power and high image quality LCD applications," IEEE Trans. Consum. Electron. 55, 839-844 (2009).

IEEE Trans. Image Process. (1)

X. Shu, X. Wu, S. Forchhammer, "Optimal local dimming for LC image formation with controllable backlighting," IEEE Trans. Image Process. 22, 166-173 (2013).

IEICE Trans. Electron. (1)

M. Albrecht, A. Karrenbauer, T. Jung, C. Xu, "Sorted sector covering combined with image condensation—An efficient method for local dimming of direct-lit and edge-lit lcds," IEICE Trans. Electron. E93C, 1556-1563 (2010).

J. Display Technol. (6)

J. Soc. Inf. Display (4)

H. Chen, T. H. Ha, J. Sung, H. R. Kim, B. H. Han, "Evaluation of LCD local-dimming-backlight system," J. Soc. Inf. Display 18, 57 (2010).

S.-E. Kim, J.-Y. An, J.-J. Hong, T. W. Lee, C. G. Kim, W.-J. Song, "How to reduce light leakage and clipping in local-dimming liquid-crystal displays," J. Soc. Inf. Display 17, 1051 (2009).

M. Anandan, "Progress of LED backlights for LCDs," J. Soc. Inf. Display 16, 287-310 (2008).

H. Chen, J. Sung, T. Ha, Y. Park, "Locally pixel-compensated backlight dimming on LED-backlit LCD TV," J. Soc. Inf. Display 15, 981 (2007).

Lighting Res. Technol. (1)

J. D. Bullough, K. S. Hickcox, T. R. Klein, N. Narendran, "Effects of flicker characteristics from solid-state lighting on detection, acceptability and comfort," Lighting Res. Technol. 43, 337-348 (2011).

Other (8)

A. B. Watson, Handbook of Perception and Human Performance (Wiley, 1986).

A.A. Michelson, Studies in Optics (Univ. of Chicago, 1927).

W. H. Press, S. A. Teukolsky, W. T. Vetterling, B. P. Flannery, Numerical Recipes in C (Cambridge Univ., 1992).

C. Poynton, A Technical Introduction to Digital Video (Wiley, 1996) pp. 95.

Kodak True Color Image Suite http://r0k.us/graphics/kodak/.

Consumer Digital Video Library (2010) http://www.cdvl.org.

Technische Universitaet Muenchen Test Sequences ftp://ftp.ldv.e-technik.tu-muenchen.de/pub/test_sequences/.

Sita Sings the Blues http://archive.org/details/Sita_Sings_the_Blues.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.