Questions tagged [laser-filters]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1 vote
1 answer
331 views

Challenges with Local Planner in ROS2 Navigation2: Ineffectual Obstacle Avoidance and Potential Self-Detection

I'm currently facing challenges with the local planner in ROS2's Navigation stack, which is ineffectively distorting the global plan to avoid obstacles as displayed in these videos: GPS ok But Local ...
Marcus Vinicius's user avatar
0 votes
1 answer
10 views

laser_filters LaserScanRangeFilter not publishing

I'm trying to use the LaserScanRangeFilter to remove points that are far away. However, nothing is published on the topics it should be mapping to. Here is my ...
user avatar
0 votes
1 answer
4 views

laser_filter LaserScanRangeFilter is only using NaN as replacement value

SOLVED see answers I want to use a laser_filter to limit my ranges to certain values. But after defining the thresholds it replaces them only with NaN Values instead of my defined replacement values. ...
user avatar
0 votes
1 answer
11 views

Configuring laser_filters parameters

I want to use the LaserScanRangeFilter plugin of the laser_filters package, but I need to configure its parameters dynamically as I have to send the upper and lower thresholds from a remote device. My ...
user avatar
0 votes
1 answer
36 views

Laser filters limit scan angle opposite way and hector mapping limit of scan range

Hi guys, As pointed in the wiki and here I have used the pacakge laser_filters with the function LaserScanAngularBoundsFilter to ...
user avatar
0 votes
1 answer
19 views

LaserScanAngularBoundsFilter not work

Hi all, I tried to bound the angle of LaserScan output from -1.57~+1.57 to -0.5~+0.5. But it just not work.. Here is my yaml. ...
user avatar
0 votes
1 answer
3 views

using laser_filters to convert inf readings to max_range + 1 from hokuyo

Hi all, I have a hokuyo laser sensor and I am using hokuyo_node to get the Laser Scan. Then, I am using LaserScanRangeFilter to filter out the readings to get max_range + 1 in cases where the ...
user avatar
0 votes
1 answer
7 views

why the node laser_filters fails after updated

Hi, all. I am using "Hokuyo URG04LX UG01" and trying to test a ros wrapper for people detector by detecting legs. Naturally, the node "laser_filters" was used for preprocessing the ...
user avatar
0 votes
1 answer
4 views

Ground filter package for tilt laser that works under Hydro?

Hello All, I am using the laser_assembler package to generate a point cloud from the scans of a tilting Hokuyo laser scanner. However, I am struggeling to find an existing ROS package to filter out ...
user avatar
0 votes
1 answer
3 views

Sick LMS100 Scan to Scan object filtering

Has anyone ever done scan to scan object filtering/comparing? I want to use it to eliminate false positives. Originally posted by rplankenhorn on ROS Answers with karma: 48 on 2012-02-24 Post score: ...
user avatar
0 votes
1 answer
4 views

Sick LMS100 small object filters

I am interfacing with a Sick LMS100 laser scanner and I am having problems filtering small objects (such as grass clippings). Are there any tools built into ROS that I could use to filter these ...
user avatar
0 votes
1 answer
4 views

LaserScans not in the Map

Is there a node that returns all of the LaserScan points that are (probably) not in the map? Edit: Clarification: I was assuming a static map relative to a robot that has already been localized. What ...
DLu's user avatar
  • 4,294
0 votes
1 answer
8 views

Using laser_filter node

Hello, I'm trying to get the "scan_to_cloud_filter_chain", located in the laser_filter node, to execute but it keeps giving me the error : [ WARN] [1317231063.120226126]: Use of default '~...
user avatar
0 votes
2 answers
10 views

Filter robot out of laser scan

I would like to filter out the laser points that hit my robot. There are points above and below the scanner (green thing) that should be removed. I'm thinking I'm supposed to use ...
user avatar
0 votes
2 answers
5 views

localization in crowd environment

Hi everybody, I'm trying to figure out how to achieve robust navigation in crowded environment. I'm using a 2-d laser scanner and amcl algorithm. Is somebody facing the same problem? Are there any ...
user avatar
0 votes
1 answer
21 views

Limit scan angle with Laser Filter?

I am using the LMS1xx node (http://www.ros.org/wiki/LMS1xx) with my LMS151-10100, and I want to limit the min angle and max angle (I have obstacles on either side of the laser). The LMS1xx node does ...
wjwwood's user avatar
  • 6,517