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Mastering The SLAM Algorithm. How robots map environments.

How do Robots map an environment? Welcome to the SLAM Algorithm. The wheel encoder and IMU tracks rotation and movement. The LIDAR and RGB-D sensors capture data from the environment. Noisy data is filtered using a formula that predicts the Robot's position versus landmarks (known as Kalman Filter). This information is fused using the onboard computing device, which helps optimize drift from the IMU. During the mapping process, the Robot constantly checks is it has revisited the same spot (known as loop closure). The loop constraints are iteratively added to a graph optimization model, which builds an accurate map of the environment based on the Robot's travels.


Sensor fusion is the critical chain in the process. The integration of multiple sensors such as LIDAR, RGB-D Camera, Wheel Encoders, and IMUs is what allows the robot to properly map an environment.

Why does sensor fusion matter? Imagine if your Robot is trying to map an empty white hallway. A single sensor will not be able to differentiate the space effectively. However, fusing LIDAR and RGB-D provides the geometry and depth to map the walls, even without a color difference. AI Leadership Question: does a SLAM algorithm Robot or an LLM require more computation processing (i.e., FLOPs)? The answer will tell you which AI solution is best given the use case you are trying to solve. Not every problem should be approached using a language model (Hint - the FLOPS are massively different).


A key aspect of AI leadership is knowing how to deploy models in a manner that drives revenue, growth, profit, and reputation. It is important that you do not stop at the technical solution. It is one thing to master the engineering principles of a SLAM algorithm. It is another to know when a robot should be deployed to solve a busines problem, how doing so impacts the human workforce, and what the Responsible AI implications are.


Machine Leadership infographic showing the process of a SLAM algorithm including the various sensors such as LIDAR, RGB-D Camera, Wheel Encoder, IMUs, and Sensor Fusion.
The SLAM Algorithm plays a central role in Robotics

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