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Compression rate settings

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An increase in compression rate leads to video degradation. Intellect™ Axxon PSIM™ software compresses video right after its digitizing by the video capture card, prior to its recording and/or before transmitting it to the Remote Workstations.

Video compression rate is configured for each camera individually.

INTELLECT™ Axxon PSIM™ system uses the Quality setting for the compression rate parameter, which is reverse to the compression rate.

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1. Go to the Hardware tab in the System settings dialog box (1).
2. Select the Camera object, created before, corresponding to the camera to be adjusted, in the objects tree of the Hardware tab (2). The settings panel for the selected object is displayed on the right of the Hardware tab.
3. Go to the Basic settings tab on the settings panel of the Camera object (3).
   

4. If it is necessary to improve the video quality, move the Quality slider to the Max (4).
   If it is necessary to reduce the size of video stream from the camera, move the Quality slider to the Min.

   Info
   title Note.
   Use the viewing field to estimate video enhancement or degradation.

   
   

5. Click the Apply button (5).

Key frame rate settings

INTELLECT™ Axxon PSIM™ software uses Motion Wavelet algorithm for video processing and compression. Processed by this algorithm, the video is the sequence of key - − and delta frames. A key frame is a full frame of an image. A delta frame (differential frame) is an image containing only pixel blocks which differ from the previous key frame.

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The best value of frame rate is set by default in INTELLECT™ Axxon PSIM™ software: every 8^th frame is processed as a key frame. If there are no special requirements to video size and quality, it is recommended to keep the default key frame rate.

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1. Go to the Hardware tab in the System settings dialog box (1).
2. Select the Camera object, created before, corresponding to the camera to be adjusted, in the objects tree of the Hardware tab (2). The settings panel for the selected object is displayed on the right of the Hardware tab.
3. Go to the Advanced settings tab on the settings panel of the Camera object (3).
   
4. Specify the required value of key frame rate in the Key frames interval field (4).
5. Click the Apply button (5).

Key frame rate is now configured.

Setting delta frame creation criterion

INTELLECT™ Axxon PSIM™ software uses Motion Wavelet algorithm for video processing and compression. Processed by this algorithm, the video is the sequence of key - and −and delta frames. A key frame is a full frame of an image. A delta frame (differential frame) is an image containing only pixel blocks which differ from the previous key frame. To compare the pixel blocks of a key frame to those of the frame next to the key frame, the average brightness of blocks is compared. If the difference in brightness exceeds a preset value, the block is considered to have fixed motion, and it becomes a part of a delta frame. Otherwise, the block is considered to have no motion, and it is not included into the delta frame.

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1. Go to the Hardware tab in the System settings dialog box (1).
2. Select the Camera object, created before, corresponding to the camera to be adjusted, in the objects tree of the Hardware tab (2). The settings panel for the selected object is displayed on the right of the Hardware tab.
3. Go to the Advanced settings tab on the settings panel of the Camera object (3).
   
4. Specify the value of the parameter, which sets the criterion for the block to be included into the delta frame, into the Estimate motion field (4).
5. Click the Apply button (5).

Delta frames generation criterion is now set.