视差立体图像中可交互对象的提取研究

摘要

在视差立体显示可控的系统中，可交互对象的空间位置由边界坐标和视差决定。利用智能剪刀边界提取算法，以最小累计代价路径可以对交互对象进行轮廓跟踪。在边界坐标提取时容易产生毛刺和尖角“割角”，解决毛刺问题可以采用局部矢量曲线化，进行多次迭代后有效地平滑，解决“割角”问题可以通过尖点侦测算法获得尖点后。增加新的搜索种子的方法解决，可以有效保留对象尖点；对边界提取的同时，可以同时获得边界坐标存储于文件或数据库当中用于视差对象的空间判断。%In system of controllable parallax stereo display , the space position of the interactive object is determined by boundary coordi-nate and parallax .The contour tracking on interactive object can be done by using intelligent scissors boundary extraction algorithm in mini -mum accumulative cost path .While extracting the boundary coordinate , the burrs and"cutting angles"are usually accompany .The burrs can be removed by local vector curving , and effective smooth is achieved after multiple iterations .To solve the“cutting angles” issue, the sharp point detection algorithm can be used to find the sharp points and then to increase new searching seeds , in this way the sharp points of object can be maintained effectively .While extracting the boundary , its coordinates can also be obtained and stored in files or databases for the space judgement on parallax object .