Contents
What is Hector SLAM algorithm?
Hector SLAM algorithm is used to correlate the estimated robot position and the ‘as-built’ or the under-construction map [26]. Hector SLAM functions based on different sensors samples, along with a metadata specifying the number of parameters such as map frames and sensor data format; see Figures 5 and 6.
How does Hector mapping work?
HectorSLAM combines a 2D SLAM system based on robust scan matching technique. Estimation of robot movement in real time and different parameter of scanning rate from LiDAR sensor tested in this experiment [4]. In this project, RPLIDAR A2 Laser Scanner with features 360 degree 2D lidar has been used.
Does Hector Slam use odometry?
2 Answers. hector_mapping DOES publish odometry. It can be used by setting “pub_odometry” parameter to “true”.
What does Orb Slam stand for?
Simultaneous Localization and Mapping
False frame and map point detection by Oriented FAST (Features from accelerated segment test) and Rotated BRIEF (Binary Robust Independent Elementary Features) feature detector-Simultaneous Localization and Mapping (ORB-SLAM). The two SLAM coordinate systems have the same scaling: they differ only in their orientation.
How big is Hector Slam laser range finder?
Something important to notice is that the width of the map is pretty accurate (real=4m, map’s=4.014m), and the length of the movement is also somehow accurate (real=15m, map’s= 15.47). I’m using a Hokuyo URG-04LX laser range finder, no odometry, no IMU. I’m running in Ubuntu 14.04 and using ROS Indigo.
Which is the maximum likelihood estimator in hectorslam?
The implementation of the scan matching in HectorSLAM uses the maximum likelihood estimator (MLE), which is implemented in the function estimateTransformationLogLh. LogLh stands for log likelihood function.
What’s the difference between Slam and odometry mapping?
SLAM is simultaneous localization and mapping – if the current “image” (scan) looks just like the previous image, and you provide no odometry, it does not update its position and thus you do not get a map. This is true as long as you move parallel to the wall, which is your problem case.