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Prioritize neighbor links in Optimizer::getConnectedGraph() (#1610)

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* Prioritize neighbor links in Optimizer::getConnectedGraph() to avoid odometry jumps.

* Fixed landmark order

* report: added search for first valid id

* Fixed non-neighbor comparison logic

* RGBD/LocalizationPriorError can now be 0 (disabled) to avoid using priors to fix the graph (https://github.com/introlab/rtabmap_ros/issues/1371)

* amend previous commit
This commit is contained in:
matlabbe
2025-11-08 10:58:34 -08:00
committed by GitHub
parent 5e4fd171e2
commit e9c6180d56
6 changed files with 120 additions and 60 deletions
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corelib/include/rtabmap/core/Parameters.h
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@@ -399,7 +399,7 @@ class RTABMAP_CORE_EXPORT Parameters
RTABMAP_PARAM(RGBD, LoopCovLimited, bool, false, "Limit covariance of non-neighbor links to minimum covariance of neighbor links. In other words, if covariance of a loop closure link is smaller than the minimum covariance of odometry links, its covariance is set to minimum covariance of odometry links.");
RTABMAP_PARAM(RGBD, MaxOdomCacheSize, int, 10, uFormat("Maximum odometry cache size. Used only in localization mode (when %s=false). This is used to get smoother localizations and to verify localization transforms (when %s!=0) to make sure we don't teleport to a location very similar to one we previously localized on. Set 0 to disable caching.", kMemIncrementalMemory().c_str(), kRGBDOptimizeMaxError().c_str()));
RTABMAP_PARAM(RGBD, LocalizationSmoothing, bool, true, uFormat("Adjust localization constraints based on optimized odometry cache poses (when %s>0).", kRGBDMaxOdomCacheSize().c_str()));
RTABMAP_PARAM(RGBD, LocalizationPriorError, double, 0.001, uFormat("The corresponding variance (error x error) set to priors of the map's poses during localization (when %s>0).", kRGBDMaxOdomCacheSize().c_str()));
RTABMAP_PARAM(RGBD, LocalizationPriorError, double, 0.001, uFormat("The corresponding variance (error x error) set to priors of the map's poses during localization (when %s>0). Set to 0 to only fix the first map's pose linked in odometry cache (i.e., other map's poses will be allowed to move during the optimization).", kRGBDMaxOdomCacheSize().c_str()));
RTABMAP_PARAM(RGBD, LocalizationSecondTryWithoutProximityLinks, bool, true, uFormat("When localization is rejected by graph optimization validation, try a second time without proximity links if landmark or loop closure links are also present in odometry cache (see %s). If it succeeds, the proximity links are removed. This assumes that global loop closure and landmark links are more accurate than proximity links.", kRGBDMaxOdomCacheSize().c_str()));
// Local/Proximity loop closure detection