MVTrack:基于压缩比特流的超高速无外观运动目标跟踪器
MVTrack: Ultrafast Appearance-Free Moving Object Tracking from Compressed Bitstreams
- Universitat de Barcelona(巴塞罗那大学)
- Computer Vision Center(计算机视觉中心)
- Aalborg Universitet(奥尔堡大学)
- Milestone Systems(里程碑系统公司)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
针对RGB目标检测器计算成本高的问题,提出直接基于H.264比特流的MVTrack,结合MVDet与MVLink,在VIRAT上性能优于YOLO26n且参数量、FLOPs、延迟大幅降低,可实现高效监控跟踪。
AI中文摘要:
大规模部署现代视频跟踪器受限于基于RGB的目标检测器的计算成本。为此,我们提出MVTrack,一种直接在H.264比特流上运行的超高速运动目标跟踪器。MVTrack结合了用于运动矢量场的轻量型检测器MVDet,以及极简运动关联模块MVLink。在VIRAT数据集上,MVTrack的性能优于YOLO26n,同时参数数量减少60倍,浮点运算量(FLOPs)减少40倍,CPU延迟降低8.6倍。这些结果表明,仅压缩视频数据即可实现准确且可扩展的监控跟踪,从而无需进行像素重建。
英文摘要:
Deploying modern video trackers at scale is bottlenecked by the computational cost of RGB-based object detectors. To this end, we present MVTrack, an ultrafast tracker for moving objects that operates directly on H.264 bitstreams. MVTrack combines MVDet, a lightweight detector for motion vector fields, with MVLink, a minimalist kinematic association module. On VIRAT, MVTrack outperforms YOLO26n while using 60$\times$ fewer parameters, requiring 40$\times$ fewer FLOPs, and reducing CPU latency by 8.6$\times$. These results demonstrate that compressed video data alone can enable accurate and scalable surveillance tracking, thereby bypassing the need for pixel reconstruction.