A Comparison of Corner Feature Detectors for Video Abrupt Shot Detection

M. Abdulmunem, Eman Hato
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引用次数: 2

Abstract

Comparison of feature detectors and evaluation of their performance is very important in computer vision. A new algorithm is proposed in this paper to compare the performance of four corner feature detectors based on abrupt shot boundary detection. The proposed algorithm consists of two stages: feature vectors generation where corner detector for all video frames is computed to obtain the descriptor feature vectors, and features matching where the number of matching features between two successive frames is calculated. The corner feature detectors used in this paper are BRISK, Harries, MinEigen, and FAST. Experimental results indicate that the proposed algorithm using MinEigen features detector provides better performance than other features detectors where the average value of recall, precision, and F measure is 0.99083, 0.98808, and 0.98875 for selected testing videos respectively. The results also show that the FAST is superior to others feature detectors when considering execution time.
角点特征检测器在视频突发镜头检测中的比较
在计算机视觉中,特征检测器的比较和性能评价是非常重要的。本文提出了一种基于突发镜头边界检测的四种拐角特征检测器性能比较的新算法。该算法包括两个阶段:特征向量生成阶段,计算所有视频帧的角点检测器以获得描述子特征向量;特征匹配阶段,计算连续两帧之间的匹配特征个数。本文使用的角点特征检测器有BRISK、Harries、MinEigen和FAST。实验结果表明,采用MinEigen特征检测器的算法对所选测试视频的查全率(recall)、查准率(precision)和F测度(F measure)的平均值分别为0.99083、0.98808和0.98875,性能优于其他特征检测器。结果还表明,在考虑执行时间时,FAST优于其他特征检测器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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