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IntelRealSense / RealSenseID

Intel® RealSense™ ID SDK
https://intelrealsense.com/facial-authentication/
Apache License 2.0
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"image.get_buffer" Show Old Images Error #111

Open zeynepkoyun opened 3 years ago

zeynepkoyun commented 3 years ago

Hi @gabime

When I try to get the image with image.get_buffer, it first takes the old data and then shows the new data. How can I clear the cache?

gabime commented 3 years ago

Not sure I understand. Please provide a sample code to reproduce the problem.

zeynepkoyun commented 3 years ago

Hi @gabime When I want to ask for the Anti-Spoof answer on the image I got from the camera, it works asynchronously because it takes the images in order.

That is, while taking the 1st frame and looking for the anti-spoof response, the 2nd, 3rd and 4th frames should be taken. When I asked for the frame for the anti-spoof response again, it should have asked for the 4th frame, but first the 2nd, then the 3rd frame and then the 3rd frame. There is the latest 4thframe answer.

RealSenseSupport commented 2 years ago

You can cache some image, and find the nearest image by timestamp. the target timestamp is return from AuthenticationCallback::OnFaceDetected and all image have timestamp in metadata.