汽车工程
汽車工程
기차공정
AUTOMOTIVE ENGINEERING
2014年
7期
779-784
,共6页
葛平淑%郭烈%杜元虎%王荣本
葛平淑%郭烈%杜元虎%王榮本
갈평숙%곽렬%두원호%왕영본
车道线检测%车道偏离预警%CCD参数调节%Hough变换
車道線檢測%車道偏離預警%CCD參數調節%Hough變換
차도선검측%차도편리예경%CCD삼수조절%Hough변환
lane departure warning%lane marks detection%CCD parameter adjustment%Hough trans-form
在分析传统Hough变换优缺点后,提出一种基于CCD参数智能调节的车道线检测方法。通过建立图像特征区域,调节CCD的亮度、增益和曝光时间等参数,增强车道线与周围道路的对比度,减少路面噪声;在此基础上提出改进的Hough变换算法,对整幅图像进行种子点的选取与归类,再对每组种子点进行Hough变换,最后通过一定的角度约束提取车辆当前运行车道线。道路试验验证了该方法的有效性、实时性和准确性。
在分析傳統Hough變換優缺點後,提齣一種基于CCD參數智能調節的車道線檢測方法。通過建立圖像特徵區域,調節CCD的亮度、增益和曝光時間等參數,增彊車道線與週圍道路的對比度,減少路麵譟聲;在此基礎上提齣改進的Hough變換算法,對整幅圖像進行種子點的選取與歸類,再對每組種子點進行Hough變換,最後通過一定的角度約束提取車輛噹前運行車道線。道路試驗驗證瞭該方法的有效性、實時性和準確性。
재분석전통Hough변환우결점후,제출일충기우CCD삼수지능조절적차도선검측방법。통과건립도상특정구역,조절CCD적량도、증익화폭광시간등삼수,증강차도선여주위도로적대비도,감소로면조성;재차기출상제출개진적Hough변환산법,대정폭도상진행충자점적선취여귀류,재대매조충자점진행Hough변환,최후통과일정적각도약속제취차량당전운행차도선。도로시험험증료해방법적유효성、실시성화준학성。
The strong and weak points of traditional Hough transform are analyzed and a novel lane mark detection scheme based on intelligent adjustment of CCD parameters is proposed. By establishing image feature re-gions and adjusting the parameters of brightness, gain and exposure time of CCD, the contrast between lane marks and road surface is enhanced and road image noise is reduced. On this basis, an improved Hough transform algo-rithm is put forward, and the selection and classification of seed points are conducted on the whole image, and the Hough transform is performed on each seed group. Finally the current lane marks are extracted through certain angle constraints. The results of road test verify the effectiveness, accurateness and real time performance of the proposed scheme.