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arXiv 2406.03333cs.CV
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基于残差估计的用于视频立体匹配的灵活递归网络

A Flexible Recursive Network for Video Stereo Matching Based on Residual Estimation

School of Electronic Engineering, Xidian University(西安电子科技大学电子工程学院)

Youchen Zhao, Guorong Luo, Hua Zhong, Haixiong Li

AI总结:

提出基于残差估计的灵活递归视频立体匹配网络RecSM,利用多尺度残差估计模块加速计算,结合视差优化与时间注意力模块构成可堆叠结构,在精度仅降0.7%下实现4倍提速。

摘要:

由于视频序列中连续帧之间的视差具有高度相似性,视差变化的区域被定义为残差图,该图是可以被计算出来的。基于此,我们提出了RecSM,一种基于残差估计并具有灵活递归结构的视频立体匹配网络。RecSM网络利用多尺度残差估计模块(MREM)加速立体匹配,该模块将时间上下文作为参考,并仅通过计算当前帧与前一帧之间的残差值来快速计算当前帧的视差。为了进一步降低估计视差的误差,我们使用视差优化模块(DOM)和时间注意力模块(TAM)在每个模块之间施加约束,并与MREM一起形成灵活的可堆叠计算结构(SCS),该结构允许根据实际场景设计不同数量的SCS。实验结果表明,在堆叠数量为3的情况下,与ACVNet相比,RecSM实现了4倍的速度提升,基于一块NVIDIA RTX 2080TI GPU运行时间为0.054秒,且精度仅下降0.7%。代码可在https://github.com/Y0uchenZ/RecSM获取。

英文摘要:

Due to the high similarity of disparity between consecutive frames in video sequences, the area where disparity changes is defined as the residual map, which can be calculated. Based on this, we propose RecSM, a network based on residual estimation with a flexible recursive structure for video stereo matching. The RecSM network accelerates stereo matching using a Multi-scale Residual Estimation Module (MREM), which employs the temporal context as a reference and rapidly calculates the disparity for the current frame by computing only the residual values between the current and previous frames. To further reduce the error of estimated disparities, we use the Disparity Optimization Module (DOM) and Temporal Attention Module (TAM) to enforce constraints between each module, and together with MREM, form a flexible Stackable Computation Structure (SCS), which allows for the design of different numbers of SCS based on practical scenarios. Experimental results demonstrate that with a stack count of 3, RecSM achieves a 4x speed improvement compared to ACVNet, running at 0.054 seconds based on one NVIDIA RTX 2080TI GPU, with an accuracy decrease of only 0.7%. Code is available at https://github.com/Y0uchenZ/RecSM.

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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