【摘要】：為了高效準(zhǔn)確預(yù)估液晶顯示器的動(dòng)態(tài)成像質(zhì)量,提出了一種通用的多參數(shù)AMLCD彩色自然圖像運(yùn)動(dòng)偽像仿真算法.該算法以顯示系統(tǒng)時(shí)序分析和液晶響應(yīng)經(jīng)驗(yàn)公式為基礎(chǔ),利用視頻內(nèi)容數(shù)據(jù),對(duì)每幀內(nèi)人眼追蹤路徑上各個(gè)子像素的亮度進(jìn)行積分,在不同仿真條件下均能準(zhǔn)確地模擬主觀感受.利用該算法對(duì)高速液晶材料、倍頻和背光調(diào)制3種目前改善AMLCD運(yùn)動(dòng)模糊的主流技術(shù)進(jìn)行了對(duì)比.結(jié)果表明,三者中背光調(diào)制技術(shù)改善效果最顯著,但也容易產(chǎn)生偽輪廓重影效應(yīng),必須嚴(yán)格保證背光的同步性并慎重選擇調(diào)制的占空比.某手機(jī)制造商根據(jù)上述結(jié)論預(yù)估了不同條件下多種液晶屏的性能,最終產(chǎn)品性能與預(yù)估完全吻合,驗(yàn)證了算法的正確性與實(shí)用性.
[Abstract]:In order to predict the dynamic imaging quality of liquid crystal display (LCD) efficiently and accurately, a general simulation algorithm of motion artifacts for multi-parameter AMLCD color natural images is proposed. Based on the temporal analysis of the display system and the empirical formula of liquid crystal response, the algorithm integrates the brightness of each sub-pixel in the tracking path of the human eye in each frame by using the video content data. The subjective feelings can be accurately simulated under different simulation conditions. The algorithm is used to compare the three main techniques for improving AMLCD motion blur, such as high speed liquid crystal material, frequency doubling and backlight modulation. The results show that the effect of backlight modulation is the most significant, but it is also easy to produce pseudo-contour shadow effect. The synchronization of backlight must be strictly guaranteed and the duty cycle of modulation must be carefully selected. According to the above conclusions, a mobile phone manufacturer estimated the performance of various LCD screens under different conditions. The final product performance is in perfect agreement with the prediction, which verifies the correctness and practicability of the algorithm.
【作者單位】： 東南大學(xué)電子科學(xué)與工程學(xué)院;
【基金】：國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)資助項(xiàng)目(2010CB327705,2013CB328803) 國(guó)家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)資助項(xiàng)目(2012AA03A302,2013AA011004)
【分類號(hào)】：TN873.93

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