Capturing to Ring Buffer

The Capturing-to-RAM technique enables user to record sequences displaying very quick actions - lasting tens of milliseconds. Make sure that the RAM Capturing buttons are displayed on the Grabber & Devices ToolBar (see Arranging User Interface), or use commands from the Acquire > RAM Capture submenu.

The technique uses a ring buffer to store temporary data. The ring buffer is a part of virtual memory that is being constantly (and repeatedly) filled with the live image data. Depending on how fast the action to be captured is, you should set the ring buffer size (in seconds).

  1. Run the Acquire > RAM Capture > Settings command. The following window appears:

  2. Set the Frames (Frames buffered before / Frames buffered after. These values represent the time interval before and after you run the Acquire > RAM Capture > Capture command. Alternatively, you can switch to Time and set the time interval in seconds. Image frames from this time interval will be included in the resulting image sequence.

  3. Confirm the settings by clicking OK.

Turn the Buffer ON

  • Run the Acquire > RAM Capture > Circular Buffer ON command to enable buffering of the Live image to RAM.

  • The ring buffer functionality gets activated. The circular buffer button (if displayed on the toolbar) indicates the buffer activity.

Capture the Image Sequence

Note

If you press the RAM Capture button while in the Frozen mode or with the circular buffer turned OFF, only the frames of the Time buffered after interval will be captured.