4.8 Article

SimVODIS: Simultaneous Visual Odometry, Object Detection, and Instance Segmentation

Publisher

IEEE COMPUTER SOC
DOI: 10.1109/TPAMI.2020.3007546

Keywords

Visual odometry (VO); data-driven VO; visual SLAM; semantic VO; semantic SLAM; semantic mapping; monocular video; depth map prediction; depth estimation; ego-motion estimation; unsupervised learning; deep convolutional neural network (CNN)

Funding

  1. Institute for Information & communications Technology Promotion (IITP) - Korea Government (MSIT) [2020-0-00440]

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This paper proposes SimVODIS, a neural architecture that can simultaneously perform geometric and semantic tasks in a single thread, including visual odometry, object detection, and instance segmentation. SimVODIS outperforms or matches the state-of-the-art performance in multiple tasks.
Intelligent agents need to understand the surrounding environment to provide meaningful services to or interact intelligently with humans. The agents should perceive geometric features as well as semantic entities inherent in the environment. Contemporary methods in general provide one type of information regarding the environment at a time, making it difficult to conduct high-level tasks. Moreover, running two types of methods and associating two resultant information requires a lot of computation and complicates the software architecture. To overcome these limitations, we propose a neural architecture that simultaneously performs both geometric and semantic tasks in a single thread: simultaneous visual odometry, object detection, and instance segmentation (SimVODIS). SimVODIS is built on top of Mask-RCNN which is trained in a supervised manner. Training the pose and depth branches of SimVODIS requires unlabeled video sequences and the photometric consistency between input image frames generates self-supervision signals. The performance of SimVODIS outperforms or matches the state-of-the-art performance in pose estimation, depth map prediction, object detection, and instance segmentation tasks while completing all the tasks in a single thread. We expect SimVODIS would enhance the autonomy of intelligent agents and let the agents provide effective services to humans.

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