low rate of stereo prosilica cameras for face_detector

Question

I'm using a pair of prosilica cameras on care-o-bot, receiving images (left, right, disparity) at rate of about 2 hz, few synchronized triples, which leads to use _approximate_sync:=True _queue_size:=10 in stereo_proc and stereo_view

now face_detector is not working for this pair, while it works fine with a recorded bag video (test), has anyone any idea? suggession, please?

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Originally posted by Reza on ROS Answers with karma: 116 on 2011-03-02

Post score: 0

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Original comments

Comment by tfoote on 2011-03-02:
What is the network connection between the nodes and what else is runnong over that connection?

Answer 1

sorry should correct part of my last comment as below:

I downgraded bag playing rate to 2 hz to simulate real camera, face_detector is working fine, so images (camera) synchronization should be a matter not the low rate.

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Originally posted by Reza with karma: 116 on 2011-03-03

This answer was ACCEPTED on the original site

Post score: 0

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Original comments

Comment by Reza on 2011-03-03:
rostopic hz /stereo/left/image_rect is about 2.2 rostopic hz /stereo/right/image_rect is about 2.4 rostopic hz /stereo/disparity is about 1.6