电子技术
電子技術
전자기술
ELECTRONIC TECHNOLOGY
2014年
12期
26-30,13
,共6页
张旭东%严宏斌%张忠伟%周亚同
張旭東%嚴宏斌%張忠偉%週亞同
장욱동%엄굉빈%장충위%주아동
疲劳驾驶%主动性状模型%人眼定位%偏头%光照
疲勞駕駛%主動性狀模型%人眼定位%偏頭%光照
피로가사%주동성상모형%인안정위%편두%광조
fatigue driving%active shape model%eye allocation%head-leaning%illumination
考虑疲劳驾驶检测过程中容易出现的偏头情形和光照因素影响,提出一种疲劳驾驶稳健检测算法。在实现Adaboost和主动性状模型相结合的人眼定位基础上,算法首先通过归一化人脸图像旋转等手段,使检测系统可以适应驾驶过程中经常出现的驾驶员偏头情形;其次通过补充人脸训练样本和引入直方图均衡等手段,使其可以更好地适应驾驶中出现的各种光照环境。最后利用Perclos算法对驾驶员疲劳状态进行判定。对模拟视频及车内采集的真实驾驶样本视频进行检测实验,结果表明稳健检测算法可以更准确定位人眼的位置。不仅可以有效的适应偏头情况,并且可以消除光照因素的影响,提升了检测系统的稳健性。
攷慮疲勞駕駛檢測過程中容易齣現的偏頭情形和光照因素影響,提齣一種疲勞駕駛穩健檢測算法。在實現Adaboost和主動性狀模型相結閤的人眼定位基礎上,算法首先通過歸一化人臉圖像鏇轉等手段,使檢測繫統可以適應駕駛過程中經常齣現的駕駛員偏頭情形;其次通過補充人臉訓練樣本和引入直方圖均衡等手段,使其可以更好地適應駕駛中齣現的各種光照環境。最後利用Perclos算法對駕駛員疲勞狀態進行判定。對模擬視頻及車內採集的真實駕駛樣本視頻進行檢測實驗,結果錶明穩健檢測算法可以更準確定位人眼的位置。不僅可以有效的適應偏頭情況,併且可以消除光照因素的影響,提升瞭檢測繫統的穩健性。
고필피로가사검측과정중용역출현적편두정형화광조인소영향,제출일충피로가사은건검측산법。재실현Adaboost화주동성상모형상결합적인안정위기출상,산법수선통과귀일화인검도상선전등수단,사검측계통가이괄응가사과정중경상출현적가사원편두정형;기차통과보충인검훈련양본화인입직방도균형등수단,사기가이경호지괄응가사중출현적각충광조배경。최후이용Perclos산법대가사원피로상태진행판정。대모의시빈급차내채집적진실가사양본시빈진행검측실험,결과표명은건검측산법가이경준학정위인안적위치。불부가이유효적괄응편두정황,병차가이소제광조인소적영향,제승료검측계통적은건성。
Taking two factors, head-leaning and illumination which often affect the fatigue detection of drivers, into consideration, a robust fatigue detection algorithm is proposed. On the basis of eyes location which combines Adaboost and the active shape model, the whole system is able to adapt itself to the condition of head-leaning by normalizing the spinning pictures of people's faces. Then the system can better adapt to various illumination conditions by supplementing training samples of people's faces and introducing histogram equalization. At last, the Perclos algorithm is used to judge the fatigue condition of the driver. Additionally the simulation videos and the actual driving videos are detected in the experiment and the result indicates that this robust algorithm can allocate people's eyes more precisely. Above all, the algorithm can not only adapt to the condition of head-leaning but also can eliminate the influence of the illumination, thereby improving the robustness of the detection system.