bfl - particle filter
Hello, I'm trying to implement a particle filter using the BFL library from Orocos. My problem is that my measurement system is multi-modal and in some cases non-analytical, with up to 30 measurements....
View ArticleAdding an object to the robot as a part of itself(s body)
Using: PR2 with ROS Groovy As described in here (http://wiki.ros.org/pr2_navigation_perception) there is a possibility to filter out some objects from the Tiltscanner by adding some information to the...
View ArticleFilter out some object as parts of the robot
Using: PR2 with ROS Groovy As described in here (http://wiki.ros.org/pr2_navigation_perception) there is a possibility to filter out some objects from the Tiltscanner by adding some information to the...
View Articlequaternion filter
I am currently using [optitrack](https://www.optitrack.com/) to track a rigid body which has both position and orientation. I have the position and orientation of my rigid object published in a ros...
View ArticleFiltering laser scan data - Remove NaN
Hi, Does anyone know how to filter out /scan topic data to remove NaN? Thanks!
View ArticleFiltering transform over time
I am using ar_kinect and I'm getting some noise in the orientation. Since my camera motion is relatively slow I wanted to filter the transforms over time. I have designed an FIR filter. I was wondering...
View ArticleLaser Footprint Filter deprecated
Hi! I want to use the laser_filters/LaserScanFootprintFilter in ROS Hydro. But I get a warning that says that LaserScanFootprintFilter has been deprecated and that I should use...
View Articleadaptive Point Mass Filter (PMF)
Hi, I am looking to use an adaptive point mass filter in my application. I am about to go ahead and implement my own. But before this I was wondering if any of you have a good reference which I can...
View ArticleKalman Filter -- difference between Odometry sensors and Measurement Step...
In general descriptions of the Kalman Filter it is described as "fusing" of sensor data. Some sensors (e.g. wheel rotation counters, gyros, accelerometers) are considered as input to the Prediction...
View ArticleTarget/landmark tracking
Are there any packages for target/landmark tracking? I have a drone which has a localization system implemented using a GPS. However I would like it to track some stationary ground targets and...
View Articleissue of ground filter in octomap_server
I am testing the octomap_server and I used the sample data from http://vimeo.com/1451349?pg=embed&sec=1451349, which is a pcap file collected from a velodyne 64 laser. Judged from the video and the...
View Articletune efk_localization_node
Hello everyone, first, here is my setup: Ubuntu 14.04 + ROS Jade I simulated a two-wheeled robot driving circles, its width is 1m20, the radius of its wheels is 30 cm. It means that both the linear...
View ArticleGet a callback on a frame apparition
Hi everyone, I would like to get a callback when I got a specific frame. I already test this method but it requires a defaut topic that i don't require: point_sub_.subscribe(nh_, "scan", 10);...
View Articlerobot_localization as simple filter without fusion
Can robot_localization be used without fusing multiple sources, ie, as a simple filter for odometry alone? I do not need or want to fuse an IMU with odometry, rather I simply want to smooth out the...
View ArticlePCL removing outliers using radius as condition
Hi I'm using a radius filter to remove outliers from my pointcloud, however the code hangs while creating the filtering object. The code never gotten to the point of outputting the message "cloud...
View ArticleImu values not being filtered properly
I am getting raw data values from imu. In the raw data, orientation always remains zero (x=0, y=0, z=0, w=0) whereas angular velocity and linear acceleration keep changing their values. I have applied...
View Articleremove outliers in 2d point cloud
Hello everyone I was trying to apply a pcl::RadiusOutlierRemoval to a 2D point cloud obtained by a laser scan when I realize that it won't work unless you use 3D points.... (at least so I figured out...
View ArticleAMCL Observation Model
Hi! I'm studding some localisation algorithms and now I'm focused in Particle Filters. I'm using AMCL as a case study. To understand the algorithm and the meaning of the parameters, I had reviewed AMCL...
View Articleis hector_slam includes any kind of kalman filter? if not, how should i do?
Hello, I have -only- LMS100 lidar and can create map with hector_slam. My question is hector_slam includes filters like kalman filter or extended kalman filter(EKF)? If hector_slam itself doesnt...
View Articlepassthrough filter conversion errors
Hi everyone, I am pretty new with ROS and PCL and still trying to get a few first results. My goal is to get the passthrough filter running with a RGBD camera, where I subscribe to a point cloud topic....
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