A novel multimodal fusion network based on a joint coding model for lane line segmentation

• URL: http://arxiv.org/abs/2103.11114v1
• Date: Sat, 20 Mar 2021 06:47:58 GMT
• Title: A novel multimodal fusion network based on a joint coding model for lane line segmentation
• Authors: Zhenhong Zou, Xinyu Zhang, Huaping Liu, Zhiwei Li, Amir Hussain and Jun Li
• Abstract summary: We introduce a novel multimodal fusion architecture from an information theory perspective. We demonstrate its practical utility using LiDAR camera fusion networks. Our optimal fusion network achieves 85%+ lane line accuracy and 98.7%+ overall.
• Score: 22.89466867866239
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: There has recently been growing interest in utilizing multimodal sensors to achieve robust lane line segmentation. In this paper, we introduce a novel multimodal fusion architecture from an information theory perspective, and demonstrate its practical utility using Light Detection and Ranging (LiDAR) camera fusion networks. In particular, we develop, for the first time, a multimodal fusion network as a joint coding model, where each single node, layer, and pipeline is represented as a channel. The forward propagation is thus equal to the information transmission in the channels. Then, we can qualitatively and quantitatively analyze the effect of different fusion approaches. We argue the optimal fusion architecture is related to the essential capacity and its allocation based on the source and channel. To test this multimodal fusion hypothesis, we progressively determine a series of multimodal models based on the proposed fusion methods and evaluate them on the KITTI and the A2D2 datasets. Our optimal fusion network achieves 85%+ lane line accuracy and 98.7%+ overall. The performance gap among the models will inform continuing future research into development of optimal fusion algorithms for the deep multimodal learning community.

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