StereoDETR: Stereo-based Transformer for 3D Object Detection

Fuente: arXiv
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Main Authors: Mu, Shiyi, Gu, Zichong, Ai, Zhiqi, Liu, Anqi, Gao, Yilin, Xu, Shugong
Format: Preprint
Published: 2025
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author Mu, Shiyi
Gu, Zichong
Ai, Zhiqi
Liu, Anqi
Gao, Yilin
Xu, Shugong
author_facet Mu, Shiyi
Gu, Zichong
Ai, Zhiqi
Liu, Anqi
Gao, Yilin
Xu, Shugong
contents Compared to monocular 3D object detection, stereo-based 3D methods offer significantly higher accuracy but still suffer from high computational overhead and latency. The state-of-the-art stereo 3D detection method achieves twice the accuracy of monocular approaches, yet its inference speed is only half as fast. In this paper, we propose StereoDETR, an efficient stereo 3D object detection framework based on DETR. StereoDETR consists of two branches: a monocular DETR branch and a stereo branch. The DETR branch is built upon 2D DETR with additional channels for predicting object scale, orientation, and sampling points. The stereo branch leverages low-cost multi-scale disparity features to predict object-level depth maps. These two branches are coupled solely through a differentiable depth sampling strategy. To handle occlusion, we introduce a constrained supervision strategy for sampling points without requiring extra annotations. StereoDETR achieves real-time inference and is the first stereo-based method to surpass monocular approaches in speed. It also achieves competitive accuracy on the public KITTI benchmark, setting new state-of-the-art results on pedestrian and cyclist subsets. The code is available at https://github.com/shiyi-mu/StereoDETR-OPEN.
format Preprint
id arxiv_https___arxiv_org_abs_2511_18788
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle StereoDETR: Stereo-based Transformer for 3D Object Detection
Mu, Shiyi
Gu, Zichong
Ai, Zhiqi
Liu, Anqi
Gao, Yilin
Xu, Shugong
Computer Vision and Pattern Recognition
Compared to monocular 3D object detection, stereo-based 3D methods offer significantly higher accuracy but still suffer from high computational overhead and latency. The state-of-the-art stereo 3D detection method achieves twice the accuracy of monocular approaches, yet its inference speed is only half as fast. In this paper, we propose StereoDETR, an efficient stereo 3D object detection framework based on DETR. StereoDETR consists of two branches: a monocular DETR branch and a stereo branch. The DETR branch is built upon 2D DETR with additional channels for predicting object scale, orientation, and sampling points. The stereo branch leverages low-cost multi-scale disparity features to predict object-level depth maps. These two branches are coupled solely through a differentiable depth sampling strategy. To handle occlusion, we introduce a constrained supervision strategy for sampling points without requiring extra annotations. StereoDETR achieves real-time inference and is the first stereo-based method to surpass monocular approaches in speed. It also achieves competitive accuracy on the public KITTI benchmark, setting new state-of-the-art results on pedestrian and cyclist subsets. The code is available at https://github.com/shiyi-mu/StereoDETR-OPEN.
title StereoDETR: Stereo-based Transformer for 3D Object Detection
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2511.18788