Bad preview image in objects list

Answered

Permanently deleted user

November 23, 2021 01:03

The following relates to a face tracking and recognition plugin.

The bounding box is in the wrong place in the object list, and shows an image of the background. It looks as if the box location is from the start of the track, but the video frame is from a later point in time.

The bounding box is drawn well throughout the replay video, and follows the face; the timing appears perfect.

Nx Witness client/server version is 4.2.0.32840

Start of track

Just after the bounding box appears for the first time

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• 

  Andrey Terentyev

  • Network Optix team

  November 23, 2021 10:04

  Hello

  It seems you don't provide besthost and the timestamp of the earliest appearance of a trackId is taken for preview.

  Please, see the "Object Preview Image Is Wrong" section of this guide

  https://support.networkoptix.com/hc/en-us/articles/1500006332441-Troubleshooting-Analytics-Issues-for-Cameras-and-Plugins

  For further troubleshooting, we'll need analytics logs.

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