本文關(guān)鍵詞：3D電視圖片視差引發(fā)的EEG和VEP變化的研究　出處：《中國生物醫(yī)學(xué)工程學(xué)報》2015年06期 　論文類型：期刊論文

  更多相關(guān)文章： D電視 視差 視覺誘發(fā)電位 疲勞因子R值

【摘要】：采集志愿者觀看3D電視不同視差圖片時的腦電信號,分析其在觀看過程中產(chǎn)生的視覺誘發(fā)電位,計算各波段功率得到視覺疲勞因子R值,以此來探究3D影片中視差因素對人體健康的影響,為3D片源的制作提供一定的指標(biāo)參考�；贜euroscan腦電儀搭建實驗系統(tǒng),選取10名健康志愿者觀看不同視差的3D圖片,采集腦電信號的同時當(dāng)其感覺不適時(刺痛感或者眩暈感)通過按鍵反饋。對采集的腦電信號中枕部視覺功能區(qū)的O1、O_z、O_2等3個導(dǎo)聯(lián)的數(shù)據(jù)采取疊加平均的方法提取其視覺誘發(fā)電位(VEP),得到N_(135)成分波和P_(260)成分波;將預(yù)處理后的腦電信號依照相同的圖片刺激序號進行疊加,將結(jié)果用Matlab的EEG工具包進行相對功率計算,進一步得到疲勞因子R值。結(jié)果表明,不同視差圖片誘發(fā)的VEP的電位幅值和潛伏期有所差異,潛伏期的差異尤為明顯(不同分組的均值變化為30%);志愿者觀看只有負(fù)視差的3D圖片時疲勞因子R值較大,即所有導(dǎo)聯(lián)的均值比其他分組圖片高10%。P_(260)成分的幅值和潛伏期可以作為評價3D片源的一個參考指標(biāo);負(fù)視差的圖片更容易引起人眼的疲勞;正負(fù)視差都有的圖片引起的疲勞度等級最低。
[Abstract]:The EEG signals of volunteers watching different parallax images of 3D TV were collected, and the visual evoked potential (VEP) produced during viewing was analyzed, and the visual fatigue factor R value was obtained by calculating the power of each band. In order to explore the effect of parallax factors on human health in 3D film, provide a certain index reference for making 3D film source. The experiment system is built based on Neuroscan EEG instrument. Ten healthy volunteers were selected to view 3D images of different parallax. At the same time, when the EEG signal is not timely (tingling or dizziness) through keystroke feedback. The occipital visual functional area of the collected EEG O1OZ. The data of three leads, O _ 2 and so on, were extracted by superposition average method to get the component wave of NSP 135 and the component wave of PSP 260). The preprocessed EEG signal was superposed according to the same image stimulus sequence, and the relative power was calculated with Matlab's EEG Toolkit, and the fatigue factor R value was further obtained. The amplitude and latency of VEP induced by different parallax images were different, especially the latency (the mean value of different groups was 30%). When the volunteers viewed 3D images with only negative parallax, the R value of fatigue factor was higher. That is, the average value of all leads is 10% higher than that of other subgroup pictures. The amplitude and latency of the components can be used as a reference index for evaluating 3D source. Negative parallax images are more likely to cause human eye fatigue; Both positive and negative parallax images have the lowest fatigue level.
【作者單位】： 南京航空航天大學(xué)自動化學(xué)院;
【基金】：科技部十二五國家科技支撐計劃(2012BAI23B07) 國家自然科學(xué)基金(61171059) 江蘇省研究生培養(yǎng)創(chuàng)新工程(KYLX_0248)
【分類號】：R741.044;TN911.7
【正文快照】： 引言隨著觀看3D電影的熱潮席卷全球,3D電視也開始進入尋常百姓人家中。盡管3D電視在真實感和立體感等方面給我們帶來愉悅,但觀看之后容易產(chǎn)生視覺疲勞等弊端也逐漸顯現(xiàn)[1],眼干澀、酸痛、發(fā)癢等不良反應(yīng)尤為明顯[2]。因此,通過客觀的技術(shù)手段為廠商提供安全的3D片源相關(guān)的指標(biāo)，

本文編號：1396056