运动目标提取和跟踪是视觉分析、高级行为理解以及运动编码等计算机视觉 应用领域中基本而又重要的一步，也是计算机视觉中的难点问题。本文深入研究 了运动视觉中目标的精确提取与跟踪算法，包括运动检测、阴影消除、外轮廓提 取以及目标的跟踪四个方面-Extraction and tracking of moving targets is a visual analysis, to understand high-level acts, as well as encoding movement i

a code for method for segmentation using the detection of active contour Level set

水平集用于图像轮廓检测，levelset-Level set for image contour detection, levelset

the document gives you good idea regarding contour detection in low intensity images