UFOCaptureV2 users manual

2.Setup

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2.3 Basic Settings

To begin observations, basic settings below are necessary.

(1) Initialize settings by reading a preset file.

• By package default, UFOCaptureV2 is set as NTSC 640x480 29.97fps daytime AVI capture. If your observation purpose is differ from this, you should read the nearest preset settings from below.

  preset file name	signal	fps	resolution	purpose	comment
  NH320x240D.ufi	NTSC	15	320x240	daytime	NTSC minimum load setting
  NF320x240D.ufi		29.97			NTSC low resolution for daytime
  NF360x240D.ufi			360x240		NTSC IEEE1394(DV) low resolution for daytime
  NF640x480D.ufi			640x480		NTSC standard for daytime (package default)
  NF640x480N.ufi				night sky	NTSC standard for night sky
  NF720x480D.ufi			720x480	daytime	NTSC IEEE1394(DV) hi resolution for daytime
  NF720x480N.ufi				night sky	NTSC IEEE1394(DV) hi resolution for night sky
  PH320x240D.ufi	PAL	12.5	320x240	daytime	PAL minimum load setting
  PF640x480N.ufi		25	640x480	night sky	PAL high resolution for night sky
  PF720x576N.ufi		25	720x576	night sky	PAL IEEE1394(DV) high resolution for night sky

• Be aware that high resolution setting requires very high performance. Please try low resolution at first.
• Preset file (*.ufi) can be read by pushing "Read Settings" button in "Operation sheet" and assign file name.
• All settings will be changed by reading and can be modified manually afterwards. Settings will save to "Settings.ufi" at every end of execution and will be succeeded to next execution. Preset file will not change unless it is saved manually.
• Important information such as FTP passwords is saved in cipher. They can be read only with using same Serial ID.
• All setting will be initialized to package default by deleting "Settings.ufi"in execution directory.

(2)DB directory assign

• Assign proper directory to DB directory in DB sheet . All capture results will save under DB directory.
• Assign a directory which is in a large and fast HDD.

(3)Capture device/pin selection and initial detection test.

• Please do step 3,4,5,6 of quick start guide

(4)Detect are mask setting.

• Confirm Detect area file name box shows "DA-ALL.bmp" when you detect all area of input signal.
• When you have unstable or unwanted object such as trees or ground objects in the field of view, you should make area mask pattern by Detect area mask editor before sensitivity tuning.

(5)Sensitivity tuning

• There are two main threshold level below that must be tuned . Optimum setting is depend on various conditions of your system and purpose. If setting is too sensitive, capture will not stop and this must be avoided.
  • Detect Lev (brightness level)
    • "Detect Lev" is the threshold level of brightness change of each pixels.
    • Usually, "Detect Level Noise Tracking" =ON is recommended. In this case tuning must be done to Noise Tracking parameters .
      • To avoid continuous capture, tune "MinL-N " in "Input" sheet to be "Detect Lev" become above enough the noise level shown in the Bar when the input is stable.
      • In daytime observation, there will be big difference of brightness, therefore "MinL-N" = 10 to 30 would be appropriate.
      • In night, "MinL-N" = 3 to 10 may be appropriate for dim phenomenon detection..
  • Detect Size (number of pixels which change its brightness)
    • In daytime, set "Detect Size" = 100 for example. Set lower value to detect small object or set 1000 to 10000 to detect only very big objects.
    • In night, set 3 to 8 to detect small objects. In case of getting many clips which is triggered by small noise, do not set Detect size too high, but tune "MinL-N "of Noise Tracking parameter or "Detect Lev".

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