FusionViT: Hierarchical 3D Object Detection via LiDAR-Camera Vision Transformer Fusion

• URL: http://arxiv.org/abs/2311.03620v1
• Date: Tue, 7 Nov 2023 00:12:01 GMT
• Title: FusionViT: Hierarchical 3D Object Detection via LiDAR-Camera Vision Transformer Fusion
• Authors: Xinhao Xiang, Jiawei Zhang
• Abstract summary: We will introduce a novel vision transformer-based 3D object detection model, namely FusionViT. Our FusionViT model can achieve state-of-the-art performance and outperforms existing baseline methods.
• Score: 8.168523242105763
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: For 3D object detection, both camera and lidar have been demonstrated to be useful sensory devices for providing complementary information about the same scenery with data representations in different modalities, e.g., 2D RGB image vs 3D point cloud. An effective representation learning and fusion of such multi-modal sensor data is necessary and critical for better 3D object detection performance. To solve the problem, in this paper, we will introduce a novel vision transformer-based 3D object detection model, namely FusionViT. Different from the existing 3D object detection approaches, FusionViT is a pure-ViT based framework, which adopts a hierarchical architecture by extending the transformer model to embed both images and point clouds for effective representation learning. Such multi-modal data embedding representations will be further fused together via a fusion vision transformer model prior to feeding the learned features to the object detection head for both detection and localization of the 3D objects in the input scenery. To demonstrate the effectiveness of FusionViT, extensive experiments have been done on real-world traffic object detection benchmark datasets KITTI and Waymo Open. Notably, our FusionViT model can achieve state-of-the-art performance and outperforms not only the existing baseline methods that merely rely on camera images or lidar point clouds, but also the latest multi-modal image-point cloud deep fusion approaches.

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