基于目标模板库的多任务目标持久跟踪
Long-time multi-target tracking based on the target template library
云南民族大学学报:自然科学版,2017,26(1):64-68

张鹏 ZP

摘要


针对长时间跟踪造成的信息丢失问题,提出了一种借鉴人类视觉记忆机制构建目标模板库的算法,该方法能在跟踪中记忆有用目标信息,实现持久稳定的跟踪.首先采用多任务跟踪法把视频序列分成多个子任务进行多线程分块局部跟踪,然后采用模板匹配和特征融合下的粒子滤波先后进行粗略跟踪和精细跟踪;最后把跟踪结果纳入目标模板库中更新跟踪系统.实验表明,此算法具有较好的鲁棒性和稳定性. In this paper, by employing the panel data of about 70 000 Yunnan ethnic villages from the year 2011 to 2013, the inequality of opportunity is calculated and measured by four variables, including telephony, traffic way, safe drinking water, broadcasting and television. Its effects on poverty rate and net income per capital are also estimated. There are three main findings in this empirical study. Firstly, the human opportunity index of the sample villages is increasing year by year, but the safety of drinking water reaches a minimum, which is less than 80%. Secondly, the inequality of opportunity reflected by the 4 environmental variables of the less populous ethnic groups and those with a larger population is negligible. Inequality is mainly reflected when grouped at the level of prefecture and city. Thirdly, interpretation ratios of opportunity inequality for the poor and the income per capita inequality are relatively low, less than 10%. Among the environment variables, safe drinking water and road-coverage contribute the highest proportion in explanation.

参考



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