基于多信息融合的车辆阴影检测与车辆跟踪算法

来源期刊:中南大学学报(自然科学版)2015年第11期

论文作者:宋晓琳 曹晓娟 王文涛 张伟伟

文章页码:4049 - 4056

关键词:阴影检测;LBP纹理;车辆空间运动概率;Camshift算法;车辆追踪

Key words:shadow detection; LBP texture; vehicle movement probability of space; Camshift algorithm; vehicle tracking

摘    要:为了准确检测车辆,提出一种基于颜色、纹理、光照模型相结合的阴影检测算法。根据颜色恒常性完成阴影的初步检测,利用局部二值模式(LBP)纹理不变性和基于光照模型的亮度比值置信区间去除误检阴影像素,最后用区域生长完成阴影边缘像素的恢复,保证车辆阴影检测的准确与完整性。为了保证不同智能监控场景下车辆追踪的准确度和稳定度,提出一种特征与概率相结合的改进的Camshift跟踪算法。研究结果表明:所提出的阴影检测算法与改进的Camshift算法可以提升车辆检测与跟踪的准确性与稳定性。

Abstract: To make vehicle detection accurate, a shadow detection algorithm which combined color, texture and illumination model was proposed. Initial shadow detection was completed by the color invariance. LBP (local binary pattern) texture invariance and the brightness of the lighting model confidence interval were used to get rid of false shadow pixels. Finally, the recovery of edge pixels was realized by using region growing. And shadow detection was made more accurate and integrated by the algorithm. To make the vehicle tracking under different intelligent monitoring scenes more accurate and stable, improved Camshift tracking algorithm which combines characteristic and probabilistic was used. The results show that the proposed algorithm can improve the accuracy and stability of vehicle detection and tracking.

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