Bug in ObjectCameraFilter::Filter

[csukuangfj]

See the code

apollo/modules/perception/obstacle/camera/filter/object_camera_filter.cc

Lines 32 to 34 in 026e99d

	for (auto p : tracked_filters_) {
	p.second.lost_frame_cnt_ += 1;
	}

apollo/modules/perception/obstacle/camera/filter/object_camera_filter.h

Line 71 in 026e99d

std::unordered_map<int, ObjectFilter> tracked_filters_;

tracked_filters_ is never updated.

[daohu527]

Closed due to inactivity. If the problem persists, pls feel free to reopen it or create a new one and refer to it.