7592 Metropolitan Drive
Suite 401
San Diego, CA USA
(877) 949 - 1684

Flower Field 2 (200ft) - April 1, 2016

This survey was of a large multi-sloped group of fields containing generic flower bouquet greens (filler). Many different types of crops were captured ranging in density and height.

This flight follows our recommended survey overlap of at least 70% front-lap and 70% side-lap and a maximum 5mph (8kmh) speed for every 65ft (20m) of altitude (AGL) for RAW+JPG mode, and a maximum 10mph (16kmh) speed for every 65ft (20m) of altitude (AGL) for JPG only mode.

Click images below to download original image (large file sizes, fast internet connection recommended)

Vehicle 3DR SOLO
Mount 3DR SOLO Quad Mount
Height AGL 200ft (61m)
GSD (Average) 0.93in/px (2.35cm/px)
Speed 15mph (24kmh)
Surveyed Area 24.2 acres
Visible Light Survey2 (JPG)
[Download Sample Image Set]
Red + NIR Light (NDVI) Survey2 (JPG)
[Download Sample Image Set]
Red + NIR Light (NDVI) Survey2 (JPG)
Index Image - Calibrated With Radiometric Ground Target
Red + NIR Light (NDVI) Survey2 (JPG)
NDVI Gradient Applied Using Fiji
Infrared Light Survey2 (JPG)
[Download Sample Image Set]
Infrared Light Survey2 (JPG)
Decomposed RGB Image - Red Channel Showing Reflected Infrared Light
Red Light Survey2 (JPG)
[Download Sample Image Set]
Red Light Survey2 (JPG)
Decomposed RGB Image - Red Channel Showing Reflected Red Light
Red Light + Infrared Light Survey2 (JPG)
Calibrated NDVI Index Image (Pix4D)
Red Light + Infrared Light Survey2 (JPG)
Calibrated NDVI Gradient Image (Pix4D - Thermal Lut)
Red Light + Infrared Light Survey2 (JPG)
Calibrated NDVI Gradient Image (Pix4D - Survey2 Fiji Lut)
Comparing NDVI Images Between Dual Survey2 Red + Survey2 Infrared vs Single Camera Survey2 NDVI
(Pix4D - Survey2 Fiji Lut)
While the single NDVI camera can capture the contrast between the reflected infrared and red light for NDVI analysis, it is still lower than the contrast able to be captured from separate Red and Infrared cameras. This increased contrast allows the color map to fully show the spread of calibrated indice values, providing you more information from your survey. You cannot compare the indice values themselves from a single NDVI camera vs Red and Infrared (NDVI) camera survey as the captured light intensities are different. Using the base calibration or ground target calibration though you are able to compare various flights using the same camera setup. We recommend using multiple cameras for the best indice results, assuming you have the software (Pix4D) to process them.