Some test data about klt_feature_tracker

[ndepal]

1. I don't have any test data at hand, but you can very easily test it with any set of images that you load with openCV. If you have a camera that publishes images on a ROS topic, you can write a simple node that calls the TrackFeatures service which wraps the trackFeatuers call.

2. std::vector<int> &status needs to be initialized by the user of the library. Create a status vector with the size that matches your desired number of tracked features. The initial value of each status[i] can be chosen by you, depending on your needs. E.g. to initialize all n features on the first function call, initialize as follows:
   std::vector<int> status(n, 2);
   You may only want to use a subset of the total trackable features during the first call, so you might do e.g.:

std::vector<int> status(n, 0); // n is the number of features to track, default all to inactive
for (int i = 0; i < 10; i++) { // assuming n > 10
    status[i] = 2;  // request the first 10 features to be initialized
}

[tnaegeli]

I actaully have a rosbag with test data. i try to upload it somewhere and make a link to the test data. 2017-02-06 10:25 GMT+01:00 Nicolas de Palezieux <[email protected]>:

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1. I don't have any test data at hand, but you can very easily test it with any set of images that you load with openCV. If you have a camera that publishes images on a ROS topic, you can write a simple node that calls the TrackFeatures service which wraps the trackFeatuers call. 2. std::vector<int> &status needs to be initialized by the user of the library. Create a status vector with the size that matches your desired number of tracked features. The initial value of each status[i] can be chosen by you, depending on your needs. E.g. to initialize all n features on the first function call, initialize as follows: std::vector<int> status(n, 2); You may only want to use a subset of the total trackable features during the first call, so you might do e.g.: std::vector<int> status(n, 0); // n is the number of features to track, default all to inactive for (int i = 0; i < 10; i++) { // assuming n > 10 status[i] = 2; // request the first 10 features to be initialized } — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#5 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACQU6llpQFp9mvc2IibQFvh1pFTnDNhQks5rZucegaJpZM4L3YTM> .