AutoShape: Real-Time Shape-Aware Monocular 3D Object Detection (2108.11127v1)

Abstract: Existing deep learning-based approaches for monocular 3D object detection in autonomous driving often model the object as a rotated 3D cuboid while the object's geometric shape has been ignored. In this work, we propose an approach for incorporating the shape-aware 2D/3D constraints into the 3D detection framework. Specifically, we employ the deep neural network to learn distinguished 2D keypoints in the 2D image domain and regress their corresponding 3D coordinates in the local 3D object coordinate first. Then the 2D/3D geometric constraints are built by these correspondences for each object to boost the detection performance. For generating the ground truth of 2D/3D keypoints, an automatic model-fitting approach has been proposed by fitting the deformed 3D object model and the object mask in the 2D image. The proposed framework has been verified on the public KITTI dataset and the experimental results demonstrate that by using additional geometrical constraints the detection performance has been significantly improved as compared to the baseline method. More importantly, the proposed framework achieves state-of-the-art performance with real time. Data and code will be available at https://github.com/zongdai/AutoShape

• The paper introduces a real-time shape-aware method for monocular 3D object detection that utilizes geometric cues to enhance accuracy.
• It employs deep learning techniques to integrate shape priors, effectively handling occlusions and challenging scene complexities.
• Experimental results show significant improvements over previous methods, highlighting its potential for practical real-world applications.

Overview of \LaTeX\ Author Guidelines for ICCV Proceedings

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