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ADC-AIR
農業用數位相機
Argricultural Digital Camera
http://www.tetracam.com/
 TETRACAM

應用領域

  • 農業
  • 生物學
  • 石油
  • 天然氣探勘

用途TETRACAM多光譜成像系統用於農場、牧場、果園等監測,辨別植被成長狀況並尋找影響植被生長的環境因素  例:雜草、蟲害、灌溉、施肥等,藉此提高作物產量和提高農場生產力。

簡介TETRACAM數位相機在鏡頭內SENSOR加裝上濾波器,只接收可見光到近紅外光範圍的波長,其他波長經過濾波器過濾,以此基礎成像。可經由USBRS232GPS傳輸圖像資訊。

相機接收波長的頻譜範圍

  • 450~520nm --- 藍綠色
  • 520~600nm --- 綠色
  • 630~690nm --- 紅色
  • 760~900nm --- 近紅外

      成像後的圖像資訊經由PixelWrench2圖像處理軟體,可分析轉換出植物生長的重要參數。

      例如:NDVISAVIcanopy segmentation、近紅外與綠色波長之間的比值

綠色植物變成假色(false color)

TTC00012  ADC Image-  NIR    R    G

Sieve Values: 100 : 39 : 25 : 1 : 1

256灰階

TTC00012  NDVI=0.184

Sieve Values: 100 : 100 : 25 : 1 : 1


    規格:

  • 3.2 megapixel CMOS image sensor (2048 x 1536 pixels)
  • Green, Red and NIR sensitivity with bands approximately equal to TM2, TM3 and TM4.
  • Image storage to Compact Flash in Tetracam 10 bit DCM lossless, 8 bit RAW, and 10 bit RAW formats.
  • Tough CNC machined aluminum housing.
  • CS lens mount system compatible with thousands of available lenses.
  • Camera supplied with a 8.5 mm lensOptional 4.5 - 10 mm varifocal lens also available.
  • Shutter type: Rolling shutter
  • Power Source options:
  • External only - 5 to 12 VDC
  • USB interface
  • Multipin I/O connector for use with Tetracam remote trigger and viewer accessories.
  • Image Capture Capacity:
  • Approx. 3 MB per image, limited only by CF card size.
  • Image Capture Rate:
    From 2 to 5 seconds per picture depending on file save mode selected.
  • Inputs:
    5 - 12 VDC
    RS-232 dedicated to capture of NMEA GPS sentences.
    External Trigger
  • Outputs:
    Realtime NTSC or PAL Video for both viewfinder and menu operations.
  • Data Interface:
    USB 1.1
  • Dimensions:
    5.4 in. x 3.5 in. x 3.2 in. (137 mm x 90 mm x 80 mm) with lens hood in place
    22 oz. (630 gr.) without multi-I/O cable
  • Mount:
    Standard 1/4-20 tripod socket, centered under lens.
  • System Includes:
    Camera and Lens
    2GB CF card
    USB Cable
    AC/DC power supply
    Teflon calibration tag
    Tetracam PixelWrench2 Application Software (for Windows)
    Rugged carrying case