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arXiv 2202.00892cs.CVeess.IV
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视频压缩是否影响跟踪精度?

Does Video Compression Impact Tracking Accuracy?

Simon Fraser University(西蒙弗雷泽大学)

Takehiro Tanaka, Alon Harell, Ivan V. Bajić

摘要:

每个人都“知道”压缩视频会降低对象跟踪的准确性。然而,关于这一主题的文献检索显示,几乎没有记录在案的证据证明这一假定的事实。部分原因是,直到最近,还没有针对未压缩视频的对象跟踪数据集,这使得研究压缩对跟踪精度的影响变得困难。在本文中,使用最近发表的数据集,包含跟踪未压缩视频注释,我们研究了跟踪精度的退化,由于视频压缩使用严格的统计方法。具体来说,我们研究了量化参数(QP)和运动搜索范围(MSR)对多目标跟踪精度(MOTA)的影响。结果表明,QP在95%的置信水平上影响MOTA,而没有足够的证据表明MSR影响MOTA。此外,回归分析使我们能够推导出MOTA和QP之间的定量关系,用于实验中使用的特定跟踪器。

英文摘要:

Everyone "knows" that compressing a video will degrade the accuracy of object tracking. Yet, a literature search on this topic reveals that there is very little documented evidence for this presumed fact. Part of the reason is that, until recently, there were no object tracking datasets for uncompressed video, which made studying the effects of compression on tracking accuracy difficult. In this paper, using a recently published dataset that contains tracking annotations for uncompressed videos, we examined the degradation of tracking accuracy due to video compression using rigorous statistical methods. Specifically, we examined the impact of quantization parameter (QP) and motion search range (MSR) on Multiple Object Tracking Accuracy (MOTA). The results show that QP impacts MOTA at the 95% confidence level, while there is insufficient evidence to claim that MSR impacts MOTA. Moreover, regression analysis allows us to derive a quantitative relationship between MOTA and QP for the specific tracker used in the experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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