WinCAM NDVI Analysis System
Image Analysis for Plant Science
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Regent Instruments Inc. since 1991

 

 

WinCAM NDVI

For sales informations,
contact us by email

sales@regentinstruments.com

WinCAM, NDVI, color analysis, measurement, CAM, color area meter  
Image Acquisition
Image Acquisition: scanners & cameras

WinCAM NDVI can acquire images directly from most optical scanners (via TWAIN drivers) or digital cameras (via jpeg or tiff uncompressed image files).

For Vegetation Spectral Index or NDVI analysis, a special camera which acquires images in the NIR (Near Infra Red) and Visible bands of the spectrum is required (these are called NDVI, Vegetation Stress Monitoring or Multispectral cameras). Below you will find the specifications of those we sell.

Applications of NDVI cameras are numerous. While they can be used with WinCAM to compute the NDVI or other spectral index of a scene, in some instances they can be used to measure the vegetation cover over soil or other background when color (using conventional cameras) cannot be used. In situations where vegetation has colors close to or identical to their background, they can usually be distinguished in the NIR where healthy vegetation has a strong reflectance compared to other natural objects (soil, sand, rocks, water, ice, ...).

 

NDVI Cameras sold by Regent Instruments

12 MP NDVI Point&Shoot Camera

This compact point & shoot camera has a built-in lens. It can acquire images in jpeg format suitable for NDVI or other index analyses in WinCAM NDVI. It can be triggered by pressing its shutter release button or using its built-in timer. It weighs less than 200 grams.

24MP NDVI DSLR (Mirorless) Camera

This compact DSLR (mirorless) APS-C size sensor camera has an interchangeable lens. It come with a generic zoom lens which can be replaced (lens can be bought locally via camera resellers). It can acquire images in jpeg format suitable for NDVI or other index analyses in WinCAM NDVI. It can be triggered by pressing its shutter release button, using its built-in timer, an optional remote or a smartphone (not included).

20MP NDVI DSLR (Mirorless) Remote Camera

This compact DSLR (mirorless) APS-C size sensor camera has an interchangeable lens. It come with a generic zoom lens which can be replaced (lens can be bought locally via camera resellers). It can acquire images in jpeg format suitable for NDVI or other index analyses in WinCAM NDVI. It can be triggered by pressing its shutter release button or using a smartphone (not included). This camera has no viewfinder or LCD screen, that is why a smartphone is required to set the camera parameters (white balance, time, date, program mode, image sizeā€¦) and is the best option to acquire images. Its two main advantages over the above 24 MP camera is that it weight and costs half of it.

Those 3 cameras have NIR data in the Red channel, while the blue and green ones contain the visible data. The blue channel is used instead of red for NDVI analyses because healthy vegetation reflects less Blue light than Red (contrasts with NIR is stronger). Red was used initially because of camera films restrictions at the time. The Blue band was also avoided in high altitude aerial imaging because of stronger amtospheric scaterring in that band, but for ground based imaging blue is an excellent choice.

Note 1: This camera cannot acquire conventional RGB color images.

Note 2: Images are acquired to a memory card then transferred to computer for analysis with WinCAM NDVI or the camera can be connected to computer for direct files transfer.

Portable Imaging & Calibration Kit (PICK)

Conventional professional or inexpensive color digital cameras can also be used for image acquisition (for Color Index analyses not for NDVI). We do not sell such cameras (as almost any model can be used) but we offer the Portable Imaging & Calibration Kit (PICK) to ease sample positioning and pixel size or color calibration.

The PICK allows to acquire images of leaves and other biological samples (needles, roots, ...) in fields (or laboratory) with a camera for their analysis in Regent's programs (WinCAN, WinFOLIA, WinSEEDLE, ...).

It contributes in different ways to obtaining good images suitable for precise automated analysis. The background provides good contrasts with biological samples. The translucent non-reflective cover holds them firmly against it to avoid shadows and distorted measurements. Calibration targets allow to make a fast and precise calibration in just one click.

The camera is held above the sample using a tripod (not included) with or without an extension arm and uses the ambient light (it works under sunny or cloudy days). To avoid fuzziness due to the depress of the shutter we recommend to trigger the camera using a wired or wireless remote control (optional), the camera built-in timer or for some cameras using a smartphone or tablet (via WiFi or Bluetooth).

The PICK comes in 3 sizes to accomodate small or large leaves or more of them per image and two models. One is optimized for color and morphology analysis (disease quantification, area per color, leaf or object area...) using the Pro version of Regent's software, the other for basic leaf (or object) area and morphology analyses (grey levels analysis) using any of its software.

The PICK is a good complementary item to our scanner based systems wich works in the office (they are more precise and produce higher definition images).

*1 Almost any model can be used. We do not sell or recommend digital cameras.

   

WinCAM NDVI comes with an instruction manual with plenty of color illustrations, examples of applications and images for training. It also comes with prompt and competent technical support (by e-mail) by Regent Instruments personnel (the answering time is typically one hour when messages are received during North America eastern time business hours).

Sales related information

Prices in Canadian dollars and US dollars are available by contacting our Sales Department at sales@regentinstruments.com (Potential distributors, see our policy regarding distribution). When WinCAM NDVI is ordered with another Regent Instruments software (WinDENDRO, WinRHIZO, WinRHIZO Tron, WinCELL, WinSCANOPY, WinFOLIA, WinSEEDLE) a 10% discount is offered on the less expensive software.