lots of additional debugging tools implemented to check parts of the algorithm. still no good
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@ -54,10 +54,39 @@ inline Eigen::Vector4d quaternionConjugate(Eigen::Vector4d& q)
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p(1) = -q(1);
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p(2) = -q(2);
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p(3) = q(3);
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quaternionNormalize(p);
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return p;
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}
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/*
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* @brief converts a vector4 to a vector3, dropping (3)
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* this is typically used to get the vector part of a quaternion
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for eq small angle approximation
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*/
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inline Eigen::Vector3d v4tov3(const Eigen::Vector4d& q)
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{
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Eigen::Vector3d p;
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p(0) = q(0);
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p(1) = q(1);
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p(2) = q(2);
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return p;
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}
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/*
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* @brief Perform q1 * q2
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*/
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inline Eigen::Vector4d QtoV(const Eigen::Quaterniond& q)
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{
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Eigen::Vector4d p;
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p(0) = q.x();
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p(1) = q.y();
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p(2) = q.z();
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p(3) = q.w();
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return p;
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}
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/*
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* @brief Perform q1 * q2
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*/
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@ -160,11 +160,14 @@ class MsckfVio {
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const CameraMeasurementConstPtr& feature_msg);
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void calcErrorState();
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// Debug related Functions
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// Propagate the true state
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void batchTruthProcessing(
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const double& time_bound);
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void processTruthtoIMU(const double& time,
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const Eigen::Vector4d& m_rot,
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const Eigen::Vector3d& m_trans);
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@ -339,6 +342,9 @@ class MsckfVio {
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ros::Publisher mocap_odom_pub;
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geometry_msgs::TransformStamped raw_mocap_odom_msg;
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Eigen::Isometry3d mocap_initial_frame;
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Eigen::Vector4d mocap_initial_orientation;
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Eigen::Vector3d mocap_initial_position;
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};
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typedef MsckfVio::Ptr MsckfVioPtr;
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@ -22,8 +22,8 @@
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<param name="PHOTOMETRIC" value="true"/>
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<!-- Debugging Flaggs -->
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<param name="PrintImages" value="true"/>
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<param name="GroundTruth" value="true"/>
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<param name="PrintImages" value="false"/>
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<param name="GroundTruth" value="false"/>
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<param name="patch_size_n" value="7"/>
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@ -22,7 +22,7 @@
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<!-- Debugging Flaggs -->
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<param name="PrintImages" value="true"/>
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<param name="GroundTruth" value="false"/>
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<param name="GroundTruth" value="true"/>
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<param name="patch_size_n" value="7"/>
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<!-- Calibration parameters -->
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@ -203,6 +203,9 @@ bool MsckfVio::loadParameters() {
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state_server.imu_state.R_imu_cam0 = T_cam0_imu.linear().transpose();
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state_server.imu_state.t_cam0_imu = T_cam0_imu.translation();
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true_state_server.imu_state.R_imu_cam0 = T_cam0_imu.linear().transpose();
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true_state_server.imu_state.t_cam0_imu = T_cam0_imu.translation();
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CAMState::T_cam0_cam1 =
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utils::getTransformEigen(nh, "cam1/T_cn_cnm1");
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IMUState::T_imu_body =
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@ -345,6 +348,54 @@ void MsckfVio::imuCallback(const sensor_msgs::ImuConstPtr& msg){
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}
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void MsckfVio::truthCallback(const geometry_msgs::TransformStampedPtr& msg){
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static bool first_truth_odom_msg = true;
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// errorstate
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/*if(not ErrorState)
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return;
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*/
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// If this is the first mocap odometry messsage, set
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// the initial frame.
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if (first_truth_odom_msg) {
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Quaterniond orientation;
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Vector3d translation;
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tf::vectorMsgToEigen(
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msg->transform.translation, translation);
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tf::quaternionMsgToEigen(
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msg->transform.rotation, orientation);
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mocap_initial_orientation = QtoV(orientation);
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mocap_initial_position = translation;
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first_truth_odom_msg = false;
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}
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// Transform the ground truth.
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Quaterniond orientation;
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Vector3d translation;
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//tf::vectorMsgToEigen(
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// msg->transform.translation, translation);
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//tf::quaternionMsgToEigen(
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// msg->transform.rotation, orientation);
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tf::vectorMsgToEigen(
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msg->transform.translation, translation);
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tf::quaternionMsgToEigen(
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msg->transform.rotation, orientation);
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Eigen::Vector4d q = quaternionMultiplication(quaternionConjugate(mocap_initial_orientation), QtoV(orientation));
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translation -= mocap_initial_position;
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msg->transform.rotation.x = q(0);
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msg->transform.rotation.y = q(1);
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msg->transform.rotation.z = q(2);
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msg->transform.rotation.w = q(3);
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msg->transform.translation.x = translation(0);
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msg->transform.translation.y = translation(1);
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msg->transform.translation.z = translation(2);
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truth_msg_buffer.push_back(*msg);
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}
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@ -376,16 +427,32 @@ void MsckfVio::imageCallback(
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batchImuProcessing(feature_msg->header.stamp.toSec());
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// save true state in seperate state vector
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if(GROUNDTRUTH)
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//if(ErrState)
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//{
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batchTruthProcessing(feature_msg->header.stamp.toSec());
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if(GROUNDTRUTH)
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{
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state_server.imu_state.position = true_state_server.imu_state.position;
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state_server.imu_state.orientation = true_state_server.imu_state.orientation;
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state_server.imu_state.position_null = true_state_server.imu_state.position_null;
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state_server.imu_state.orientation_null = true_state_server.imu_state.orientation_null;
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state_server.imu_state.R_imu_cam0 = true_state_server.imu_state.R_imu_cam0;
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state_server.imu_state.t_cam0_imu = true_state_server.imu_state.t_cam0_imu;
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}
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//}
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double imu_processing_time = (
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ros::Time::now()-start_time).toSec();
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// Augment the state vector.
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start_time = ros::Time::now();
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if(PHOTOMETRIC)
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{
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truePhotometricStateAugmentation(feature_msg->header.stamp.toSec());
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PhotometricStateAugmentation(feature_msg->header.stamp.toSec());
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}
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else
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stateAugmentation(feature_msg->header.stamp.toSec());
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double state_augmentation_time = (
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@ -673,15 +740,47 @@ void MsckfVio::mocapOdomCallback(const nav_msgs::OdometryConstPtr& msg) {
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void MsckfVio::calcErrorState()
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{
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// true_state_server - state_server = err_state_server
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StateServer errState;
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errState.imu_state.id = state_server.imu_state.id;
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errState.imu_state.time = state-server.imu_state.time;
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errState.imu_state.orientation = quaternionMultiplication(true_state_server.imu_state.orientation, quaterionConjugate(state_server.imu_state.orientation));
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errState.imu_state.position = true_state_server.imu_state.position - state_server.imu_state.position;
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errState.imu_state.velocity =
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// imu error
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err_state_server.imu_state.id = state_server.imu_state.id;
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err_state_server.imu_state.time = state_server.imu_state.time;
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err_state_server.imu_state.orientation = quaternionMultiplication(true_state_server.imu_state.orientation, quaternionConjugate(state_server.imu_state.orientation));
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// convert to small angle approximation
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err_state_server.imu_state.orientation *= 2;
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err_state_server.imu_state.orientation(3) = 0;
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err_state_server.imu_state.position = true_state_server.imu_state.position - state_server.imu_state.position;
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err_state_server.imu_state.velocity = true_state_server.imu_state.velocity - state_server.imu_state.velocity;
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err_state_server.imu_state.gyro_bias = true_state_server.imu_state.gyro_bias - true_state_server.imu_state.gyro_bias;
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err_state_server.imu_state.gyro_bias = true_state_server.imu_state.acc_bias - true_state_server.imu_state.acc_bias;
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err_state_server.imu_state.R_imu_cam0 = true_state_server.imu_state.R_imu_cam0 - true_state_server.imu_state.R_imu_cam0;
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err_state_server.imu_state.t_cam0_imu = true_state_server.imu_state.t_cam0_imu - true_state_server.imu_state.t_cam0_imu;
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err_state_server.imu_state.orientation_null = true_state_server.imu_state.orientation_null - true_state_server.imu_state.orientation_null;
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err_state_server.imu_state.position_null = true_state_server.imu_state.position_null - true_state_server.imu_state.position_null;
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err_state_server.imu_state.velocity_null = true_state_server.imu_state.velocity_null - true_state_server.imu_state.velocity_null;
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auto cam_state_iter = state_server.cam_states.begin();
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auto true_cam_state_iter = true_state_server.cam_states.begin();
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auto err_cam_state_iter = err_state_server.cam_states.begin();
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for (int i = 0; i < state_server.cam_states.size(); ++i, ++cam_state_iter, ++err_cam_state_iter, ++true_cam_state_iter)
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{
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// calculate error in camera rotation
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Eigen::Vector4d q = cam_state_iter->second.orientation;
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Eigen::Vector4d p = quaternionConjugate(true_cam_state_iter->second.orientation);
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err_cam_state_iter->second.orientation = quaternionMultiplication(p, q);
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// small angle approximation
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err_cam_state_iter->second.orientation *= 2;
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err_cam_state_iter->second.orientation(3) = 0;
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// calculate error of state position
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err_cam_state_iter->second.position = true_cam_state_iter->second.position - cam_state_iter->second.position;
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}
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}
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void MsckfVio::batchTruthProcessing(const double& time_bound) {
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@ -706,7 +805,7 @@ void MsckfVio::batchTruthProcessing(const double& time_bound) {
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m_rotation[1] = truth_msg.transform.rotation.y;
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m_rotation[2] = truth_msg.transform.rotation.z;
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m_rotation[3] = truth_msg.transform.rotation.w;
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quaternionNormalize(m_rotation);
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// Execute process model.
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processTruthtoIMU(truth_time, m_rotation, m_translation);
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++used_truth_msg_cntr;
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@ -714,8 +813,8 @@ void MsckfVio::batchTruthProcessing(const double& time_bound) {
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last_time_bound = time_bound;
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// Set the state ID for the new IMU state.
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true_state_server.imu_state.id = IMUState::next_id++;
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true_state_server.imu_state.id = IMUState::next_id;
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err_state_server.imu_state.id = IMUState::next_id;
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// Remove all used Truth msgs.
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truth_msg_buffer.erase(truth_msg_buffer.begin(),
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truth_msg_buffer.begin()+used_truth_msg_cntr);
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@ -960,7 +1059,6 @@ void MsckfVio::stateAugmentation(const double& time)
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size_t old_rows = state_server.state_cov.rows();
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size_t old_cols = state_server.state_cov.cols();
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// add 7 for camera state + irradiance bias eta = b_l
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state_server.state_cov.conservativeResize(old_rows+6, old_cols+6);
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// Rename some matrix blocks for convenience.
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@ -991,18 +1089,26 @@ void MsckfVio::truePhotometricStateAugmentation(const double& time)
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// Add a new camera state to the state server.
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Matrix3d true_R_w_i = quaternionToRotation(
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true_state_server.imu_state.orientation);
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Matrix3d true_R_w_c = R_i_c * R_w_i;
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Matrix3d true_R_w_c = true_R_i_c * true_R_w_i;
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Vector3d true_t_c_w = true_state_server.imu_state.position +
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R_w_i.transpose()*t_c_i;
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true_R_w_i.transpose()*true_t_c_i;
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true_state_server.cam_states[true_state_server.imu_state.id] =
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CAMState(state_server.imu_state.id);
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CAMState(true_state_server.imu_state.id);
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CAMState& true_cam_state = true_state_server.cam_states[
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true_state_server.imu_state.id];
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// manage error state size
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err_state_server.cam_states[err_state_server.imu_state.id] =
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CAMState(err_state_server.imu_state.id);
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CAMState& err_cam_state = err_state_server.cam_states[
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err_state_server.imu_state.id];
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err_cam_state.time = time;
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true_cam_state.time = time;
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true_cam_state.orientation = rotationToQuaternion(true_R_w_c);
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true_cam_state.position = t_c_w;
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true_cam_state.position = true_t_c_w;
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true_cam_state.orientation_null = true_cam_state.orientation;
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true_cam_state.position_null = true_cam_state.position;
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@ -1163,6 +1269,7 @@ void MsckfVio::PhotometricMeasurementJacobian(
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int count = 0;
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double dx, dy;
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for (auto point : feature.anchorPatch_3d)
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{
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Eigen::Vector3d p_c0 = R_w_c0 * (point-t_c0_w);
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@ -1197,6 +1304,7 @@ void MsckfVio::PhotometricMeasurementJacobian(
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//d{}^Gp_P{ij} / \rho_i
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double rho = feature.anchor_rho;
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// Isometry T_anchor_w takes a vector in anchor frame to world frame
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dGpj_drhoj = feature.T_anchor_w.linear() * Eigen::Vector3d(-feature.anchorPatch_ideal[count].x/(rho*rho), -feature.anchorPatch_ideal[count].y/(rho*rho), -1/(rho*rho));
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dGpj_XpAj.block<3, 3>(0, 0) = - skewSymmetric(feature.T_anchor_w.linear()
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@ -1216,7 +1324,6 @@ void MsckfVio::PhotometricMeasurementJacobian(
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count++;
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}
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// calculate residual
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//observation
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@ -1299,8 +1406,27 @@ void MsckfVio::PhotometricFeatureJacobian(
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std::cout << "stopped playpack" << std::endl;
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nh.setParam("/play_bag", false);
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}
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// Errstate
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calcErrorState();
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/*
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std::cout << "--- error state: ---\n " << std::endl;
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std::cout << "imu orientation:\n " << err_state_server.imu_state.orientation << std::endl;
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std::cout << "imu position\n" << err_state_server.imu_state.position << std::endl;
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int count = 0;
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for(auto cam_state : err_state_server.cam_states)
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{
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std::cout << " - cam " << count++ << " - \n" << std::endl;
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std::cout << "orientation: " << cam_state.second.orientation(0) << cam_state.second.orientation(1) << " " << cam_state.second.orientation(2) << " " << std::endl;
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std::cout << "position:" << cam_state.second.position(0) << " " << cam_state.second.position(1) << " " << cam_state.second.position(2) << std::endl;
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}
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*/
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const auto& feature = map_server[feature_id];
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// Check how many camera states in the provided camera
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// id camera has actually seen this feature.
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vector<StateIDType> valid_cam_state_ids(0);
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@ -1344,19 +1470,25 @@ void MsckfVio::PhotometricFeatureJacobian(
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// get Nullspace
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JacobiSVD<MatrixXd> svd_helper(H_yi, ComputeFullU | ComputeThinV);
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int sv_size = 0;
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Eigen::VectorXd singularValues = svd_helper.singularValues();
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for(int i = 0; i < singularValues.size(); i++)
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if(singularValues[i] > 1e-5)
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if(singularValues[i] > 1e-9)
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sv_size++;
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int null_space_size = svd_helper.matrixU().cols() - svd_helper.singularValues().size();
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MatrixXd A = svd_helper.matrixU().rightCols(
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jacobian_row_size-sv_size);
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int null_space_size = svd_helper.matrixU().cols() - sv_size; //TEST used instead of svd_helper.singularValues().size();
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MatrixXd A = svd_helper.matrixU().rightCols(null_space_size);
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H_x = A.transpose() * H_xi;
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r = A.transpose() * r_i;
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ofstream myfile;
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myfile.open ("/home/raphael/dev/MSCKF_ws/log.txt");
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myfile << "nulls:\n" << A.transpose() * H_yi <<endl;
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myfile.close();
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cout << "---------- LOGGED -------- " << endl;
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if(PRINTIMAGES)
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{
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std::cout << "resume playback" << std::endl;
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@ -1495,6 +1627,13 @@ void MsckfVio::featureJacobian(
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H_x = A.transpose() * H_xj;
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r = A.transpose() * r_j;
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ofstream myfile;
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myfile.open ("/home/raphael/dev/MSCKF_ws/log.txt");
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myfile << "-- residual -- \n" << r << "\n---- H ----\n" << H_x << "\n---- state cov ----\n" << state_server.state_cov <<endl;
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myfile.close();
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cout << "---------- LOGGED -------- " << endl;
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nh.setParam("/play_bag", false);
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return;
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}
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@ -1926,9 +2065,18 @@ void MsckfVio::pruneCamStateBuffer() {
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}
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// Remove this camera state in the state vector.
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for (const auto& cam_id : rm_cam_state_ids) {
|
||||
|
||||
state_server.cam_states.erase(cam_id);
|
||||
cam0.moving_window.erase(cam_id);
|
||||
cam1.moving_window.erase(cam_id);
|
||||
|
||||
// Remove this camera state in the true state vector.
|
||||
true_state_server.cam_states.erase(cam_id);
|
||||
err_state_server.cam_states.erase(cam_id);
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
@ -2084,7 +2232,6 @@ void MsckfVio::publish(const ros::Time& time) {
|
||||
feature_msg_ptr->width = feature_msg_ptr->points.size();
|
||||
|
||||
feature_pub.publish(feature_msg_ptr);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user