11/30/2023 0 Comments Multispectral camera drone![]() ![]() The number of landmarks that can be set in a mission is not limited, but actions can only be performed on 99 of them. Is there a limit to the number of benchmarks that can be used on each flight? What map does the P4 Multispectral application use? The flight application included with the DJI GS Pro aircraft can be used to plan and execute flight missions. What field survey and inspection applications are available for remote control? Follow these instructions and those in the user’s manual. Which values are recorded in the pixels of the images, the DN values or the reflectance values? How is the consistency of information collected by multispectral arrays of cameras and sunlight sensors from different drones ensured?Īll P4 Multispectral aircraft have undergone a standardized camera and sensor calibration process that minimizes differences between drones. ![]() Please refer to the manual when choosing an SD card. Is the TimeSync feature available for all six cameras?ĭo I need to use a high-speed SD card for the cameras? The vignetting in the original images is not corrected, but the parameters for this correction are recorded in each of the images. Has any vignetting correction been performed on the cameras? The measurement result is saved in all images. The original images do not have the distortion corrected but during the production process the distortion of the camera lens has been measured. Have the cameras lenses gone through distortion correction? The positions of the centers of the six cameras’ CMOS relative to the phase center of the onboard D-RTK antenna have been calibrated and are recorded in the EXIF data of each image. Have the cameras on the P4 Multispectral gone through image position compensation? ![]() Your images go through radiometric calibration when you process them through the vegetation index features in DJI GS Pro and DJI Terra. How are the cameras radiometrically calibrated? What is the focal length for each camera on the P4 Multispectral?Īll the camera lenses have a focal length of 5.74 mm, and the 35 mm equivalent focal length is 40 mm. Each Sensor: Effective pixels 2.08 MP (2.12 MP in total) What are the Multispectral Imaging Bands covered by the multispectral cameras of the P4 Multispectral?īlue (B): 450 nm ± 16 nm, green (G): 560 nm ± 16 nm, red (R): 650 nm ± 16 nm, red edge (RE): 730 nm ± 16 nm, near-infrared (NIR): 840 nm ± 26 nm. This increases the consistency of the information captured in the same field. Meanwhile, the spectral sunlight sensor atop the drone compensates for the sunlight received throughout different times of day, improving the consistency of the data captured over the same field of vegetation. A common index used in the agriculture and forestry industry for plant health is NDVI. The multispectral imaging system of the P4 Multispectral detects light emissivity of different objects, which is captured by each of the cameras and analyzed to calculate vegetation index values. What are the capabilities of the multispectral camera array of the P4 Multispectral? ![]()
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