The KITTI Vision Benchmark Suite

We present LightStereo, a cutting-edge stereo-
matching network crafted to accelerate the matching
process. Departing from conventional methodologies
that rely on aggregating computationally intensive
4D costs, LightStereo adopts the 3D cost volume as a
lightweight alternative. While similar approaches
have been explored previously, our breakthrough lies
in enhancing performance through a dedicated focus
on the channel dimension of the 3D cost volume,
where the distribution of matching costs is
encapsulated. Our exhaustive exploration has yielded
plenty of strategies to amplify the capacity of the
pivotal dimension, ensuring both precision and
efficiency. We compare the proposed LightStereo with
existing state-of-the-art methods across various
benchmarks, which demonstrate its superior
performance in speed, accuracy, and resource
utilization.

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@inproceedings{guo2025lightstereo,
title={Lightstereo: Channel boost is all you
need for efficient 2d cost aggregation},
author={Guo, Xianda and Zhang, Chenming and
Zhang, Youmin and Zheng, Wenzhao and Nie, Dujun and
Poggi, Matteo and Chen, Long},
booktitle={ICRA},
year={2025}
}