LeafKam
leafkam

Five alternative models for an infrared plant health camera. 1. 1) One camera with a filter switcher which switches between IR block and IR pass filters 2. 2) Two cameras, one unmodified and one with an IR pass filter 3. 3) One camera with a "superblue" (Schott BG3) filter. 4. 4) Two cameras, one unmodified and one with a "superblue" filter. 5. 5) One camera with a filter switcher which switches between a normal IR block filter and a "superblue" filter. |Feature | ..1..|..2..|..3..|..4..|..5.. |:----------------------------------------------------------------|:--------------------:|:--------------------:|:-------------------:|:-----------------:|:------------------: |number of cameras|1|2|1|2|1 |filter switcher|1|0|0|0|1 |normal RGB color output|Y|Y|N|Y|Y |optics modified for RGB image?|Y|N|na|N|Y |NRG output|Y|Y|N|Y|Y |NDVI output|Y|Y|Y|Y|Y |shutter sync for NDVI|N|Y|N|N|N |shutter sync for NRG|N|Y|na|Y|N |filter switcher sync for NDVI|Y|N|N|N|N |filter switcher sync for NRG|Y|N|N|N|Y |rectification for NDVI|Y|Y|N|N|N |rectification for NRG|Y|Y|na|Y|Y |parallax for NDVI|N|Y|N|N|N |parallax for NRG|N|Y|na|Y|N |RGB/NIR synchrony possible?|N|Y|Y|Y|N |buy superblue filter?|N|N|Y|Y|Y **Notes:** 1._Shutter sync:_ Is it necessary to synchronize the shutters of two cameras to make multispectral images when the cameras or subject are moving? 2._Filter switcher sync:_ Is it necessary to synchronize the camera shutter with the switching of filters? 3._Rectification:_ Is it necessary to rectify (align) data from two different photos to make multispectral images? 4._Parallax:_ Is rectifying two images subject to parallax errors when subjects in the scene are both near and far from the camera? 5._RGB/NIR synchrony:_ Is it possible to capture all the data needed for multispectral images simultaneously (which is needed when the camera[s] or subject are not stationary)?...

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