diff options
Diffstat (limited to 'tracker-pt')
| -rw-r--r-- | tracker-pt/point_tracker.cpp | 99 | ||||
| -rw-r--r-- | tracker-pt/point_tracker.h | 4 |
2 files changed, 5 insertions, 98 deletions
diff --git a/tracker-pt/point_tracker.cpp b/tracker-pt/point_tracker.cpp index 8576deda..c4b518a9 100644 --- a/tracker-pt/point_tracker.cpp +++ b/tracker-pt/point_tracker.cpp @@ -135,93 +135,6 @@ PointTracker::PointOrder PointTracker::find_correspondences_previous(const vec2* return p; } -bool PointTracker::maybe_use_old_pose(const PointOrder& order, const pt_camera_info& info) -{ - if ((int)info.res_x == 0 || (int)info.res_y == 0) - return false; - - constexpr f std_width = 640, std_height = 480; - - PointOrder scaled_order; - - const f cx = std_width / info.res_x; - const f cy = std_height / info.res_y; - - bool validp = false; - - for (unsigned k = 0; k < 3; k++) - { - // note, the .y component is actually scaled by width - scaled_order[k][0] = std_width * cx * order[k][0]; - scaled_order[k][1] = std_width * cy * order[k][1]; - } - - if (prev_positions_valid) - { - f sum = 0; - - for (unsigned k = 0; k < 3; k++) - { - vec2 tmp = prev_positions[k] - scaled_order[k]; - sum += std::sqrt(tmp.dot(tmp)); - } - - // CAVEAT don't increase too much, visibly loses precision - constexpr f max_dist = f(.04 * PointModel::N_POINTS); - - // whether previous positions fit current data - validp = sum < max_dist; - } - - // positions are valid as long as the points barely moved - // (1) old positions is invalid according to new data - // - establish new positions but return `false' so that - // the next iteration tries it prior to running POSIT - // - if we returned `true', the identity pose would - // get returned forever - // (2) old positions were and still are valid - // - reuse the old pose, but don't overwrite the positions - // - if they were overwritten, we'd get slow movements - // resulting in no new pose being computed at all - // - we return `true' so that POSIT isn't invoked - // (3) old positions were marked invalid from the start - // - only possible if POSIT returns any NaN value, - // tracking just got started, or center is requested - // - proceed as in (1) - - if (!validp) - { - // if last order doesn't fit, establish a new one based on - // the pose that's just about the be computed, but - // return false so we don't reuse the same identity pose (d'oh) - prev_positions = scaled_order; - prev_positions_valid = true; - } - -#if 0 - { - static Timer tt; - static int cnt1 = 0, cnt2 = 0; - if (tt.elapsed_ms() >= 1000) - { - tt.start(); - if (cnt1 + cnt2) - { - qDebug() << "old-order" << ((cnt1 * 100.) / (cnt1 + cnt2)) << "nsamples" << (cnt1 + cnt2); - cnt1 = 0; cnt2 = 0; - } - } - if (validp) - cnt1++; - else - cnt2++; - } -#endif - - // whether previous *and* current pose have valid positions - return validp; -} - void PointTracker::track(const std::vector<vec2>& points, const PointModel& model, const pt_camera_info& info, @@ -230,7 +143,7 @@ void PointTracker::track(const std::vector<vec2>& points, const double fx = pt_camera_info::get_focal_length(info.fov, info.res_x, info.res_y); PointOrder order; - if (init_phase_timeout <= 0 || init_phase || t.elapsed_ms() > init_phase_timeout) + if (init_phase_timeout <= 0 || t.elapsed_ms() > init_phase_timeout || init_phase) { init_phase = true; order = find_correspondences(points.data(), model); @@ -238,7 +151,7 @@ void PointTracker::track(const std::vector<vec2>& points, else order = find_correspondences_previous(points.data(), model, info); - if (maybe_use_old_pose(order, info) || POSIT(model, order, fx) != -1) + if (POSIT(model, order, fx) != -1) { init_phase = false; t.start(); @@ -402,7 +315,7 @@ int PointTracker::POSIT(const PointModel& model, const PointOrder& order, f foca if (ret == FP_NAN || ret == FP_INFINITE) { qDebug() << "posit nan R"; - goto fail; + return -1; } } @@ -412,7 +325,7 @@ int PointTracker::POSIT(const PointModel& model, const PointOrder& order, f foca if (ret == FP_NAN || ret == FP_INFINITE) { qDebug() << "posit nan T"; - goto fail; + return -1; } } @@ -427,9 +340,6 @@ int PointTracker::POSIT(const PointModel& model, const PointOrder& order, f foca //qDebug() << "iter:" << i; return i; -fail: - X_CM_expected = {}; - return -1; } #ifdef __clang__ @@ -449,7 +359,6 @@ vec2 PointTracker::project(const vec3& v_M, f focal_length, const Affine& X_CM) void PointTracker::reset_state() { - prev_positions_valid = false; init_phase = true; X_CM_expected = {}; } diff --git a/tracker-pt/point_tracker.h b/tracker-pt/point_tracker.h index df56842a..526c795b 100644 --- a/tracker-pt/point_tracker.h +++ b/tracker-pt/point_tracker.h @@ -70,8 +70,6 @@ private: // the points in model order using PointOrder = std::array<vec2, 3>; - bool maybe_use_old_pose(const PointOrder& order, const pt_camera_info& info); - PointOrder find_correspondences(const vec2* projected_points, const PointModel &model); PointOrder find_correspondences_previous(const vec2* points, const PointModel &model, const pt_camera_info& info); // The POSIT algorithm, returns the number of iterations @@ -81,7 +79,7 @@ private: Affine X_CM_expected; PointOrder prev_positions; Timer t; - bool init_phase = true, prev_positions_valid = false; + bool init_phase = true; }; } // ns pt_module |