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msr_project's Introduction

Object-based Mapping for Mobile Robots in Indoor Environments

Members: Ajay Ragh, Faris Hajdarpasic, Prasanna Bijja

Supervisor: Dr. Tiziano Guadagnino

Relevance:

Robots that are expected to navigate efficiently through real-world environments need maps to localize themself and plan actions. These maps just contain purely geometric information as the robot needs a semantic understanding of its surroundings to fulfill their tasks. In this project, we address the problem of object-based mapping for mobile robots in indoor environments. The goal of the project is to realize a mapping system where an occupancy representation of the scene is enhanced with object level semantics. This high-level understanding of the scene should be suitable for other robots to localize and plan actions.

Data Acquisition

A gazebo simulation of an indoor environment is used. Through this environment we move a robot which collects RGBD and Lidar data.

gazebo indoor environment

gazebo_world

Camera motion visualisation

camera_trajectory

Experimental map segmentation visualised

Label colors for reference

label_colors

segmentation by choosing the most repeated label for a cell in occupancy grid

map_segmentation

segmentation by multiplying the past probabilities for each label with new probabilities for the label in the same cell

map_segmentation

segmentation by adding the label probabilities for the same cell and finding maximum probability after softmax in each cell of occupancy grid

map_segmentation

A slightly varied version of the addition technique

map_segmentation

Assigning label based on the polygon

map_segmentation

msr_project's People

Contributors

ajayragh97 avatar farishajdarpasic avatar

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