Visual sense analogy method for dynamic false contour effect of pair field display device

A display device and visual simulation technology, applied in the direction of identification device, static indicator, cathode ray tube indicator, etc., can solve the problem that DFC is not objective and effective

Inactive Publication Date: 2012-11-28
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Until now, there is no more objective and effective method for evaluating the effect of improving the DFC of pictures or images

Method used

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  • Visual sense analogy method for dynamic false contour effect of pair field display device
  • Visual sense analogy method for dynamic false contour effect of pair field display device
  • Visual sense analogy method for dynamic false contour effect of pair field display device

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Embodiment Construction

[0027] The sub-field display parameters in the PDP driving technology, that is, the number of sub-fields used, the weighting value of the sub-fields, and the length and interval of the sub-field maintenance display time, as well as various unique technologies to control the changes of the sub-fields can all be measured Or can be designed and quantified;

[0028] The visual response characteristic curve (visual model) of the human eye to the brightness impulse signal input obtained based on the statistical law has been confirmed.

[0029] The human eye's response to a scene or picture can be regarded as the mathematical convolution result of the light input of the scene and the visual impulse response characteristics.

[0030] In actual use, human eyes are more sensitive to DFC in the horizontal direction due to the characteristics of binocular viewing, so the model and calculation can also be simplified to one-dimensional operations in the horizontal direction. The following descrip...

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Abstract

The invention discloses a method of stimulating vision for dynamic false contour effect of a subfield display device. The method accords a mathematical model of visual characteristic of human eyes and generation mechanism of DFC to obtain visual stimulation of DFC effect of a PDP display device through computing photostimulation response upon the vision. The method of the invention provides corresponding quantitative stimulation of the dynamic false contour effect of eye visual effect obtained by computing brightness value of dynamic contour of any tested images. Also the invention can perform predictive stimulation of the effect of the designed image processing scheme.

Description

Technical field [0001] The present invention relates to a method for simulating the visual effect of dynamic false contour (DFC) of images displayed by a plasma display panel (Plasma Display Panel, PDP). The invention is suitable for simulating the DFC effect of a display device driven by the principle of subfield. Background technique [0002] PDP and other devices that use subfield display technology use the basic principle of subfield drive. In the subfield driving method, each subfield includes a preparation period and an address period when no light is emitted, and a sustain light emission period when light is emitted. The time length of the preparation period and the address area of ​​each subfield is the same, and the time for the effective light emission to maintain the light emission period is allocated based on the most basic subfield weight value. There are typically 8 subfields. The time weights of the light-emitting periods of these subfields are 1, 2, 4, 8, 16, 32...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G5/10H01J17/49G09F9/313
Inventor 杨克信
Owner IRICO
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