AVM Navigator is an additional module of the RoboRealm ( plugin) that provides

object recognition Object recognition – technology in the field of computer vision for finding and identifying objects in an image or video sequence. Humans recognize a multitude of objects in images with little effort, despite the fact that the image of the ...

and

autonomous robot An autonomous robot is a robot that acts without recourse to human control. The first autonomous robots environment were known as Elmer and Elsie, which were constructed in the late 1940s by W. Grey Walter. They were the first robots in history th ...

navigation using a single

video camera A video camera is an optical instrument that captures videos (as opposed to a movie camera, which records images on film). Video cameras were initially developed for the television industry but have since become widely used for a variety of other ...

on the robot as the main

sensor A sensor is a device that produces an output signal for the purpose of sensing a physical phenomenon. In the broadest definition, a sensor is a device, module, machine, or subsystem that detects events or changes in its environment and sends ...

for

navigation Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, ...

Associative Video Memory

It is possible due to using of an "Associative Video Memory" (AVM)

algorithm In mathematics and computer science, an algorithm () is a finite sequence of rigorous instructions, typically used to solve a class of specific Computational problem, problems or to perform a computation. Algorithms are used as specificat ...

based on multilevel decomposition of recognition matrices. It provides image recognition with low False Acceptance Rate (about 0.01%). In this case visual navigation is just the sequence of images (landmarks) with associated coordinates that was memorized inside AVM tree during route training. The navigation map is presented as the set of data (such as X, Y coordinates and azimuth) associated with images inside AVM tree. When a robot sees images from camera (marks) that can be recognized then it confirms its current location. The navigator creates a way from the current location to target position as a chain of

waypoint A waypoint is an intermediate point or place on a route or line of travel, a stopping point or point at which course is changed, the first use of the term tracing to 1880. In modern terms, it most often refers to coordinates which specify one's posi ...

s. If the robot's current orientation does not point to the next waypoint then the navigator turns the robot body. When the robot reaches a waypoint the navigator changes direction to the next waypoint in the chain and so on until the target position is reached.

External links

Official AVM Navigator help page

Robot navigation Robotics suites Computer vision software {{robot-stub