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A Versatile Leaf Area Meter
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WinFOLIA
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A Leaf Area Meter, Morphology Analyser & Disease and Insect Damage Quantifier |
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| WinFOLIA is a computer image analysis system that accurately do morphological measurements on broad leaves. It comprises hardware for image acquisition (scanner or digital camera and accessories) and a computer program, WinFOLIA, specifically designed for leaf area, morphology and disease analysis. Different configurations are offered in function of measurements, speed, accuracy and portability. |  |
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Components of a WinFOLIA System
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Image Acquisition Hardware
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| When portability is not required, we recommend WinFOLIA systems based on high resolution desktop scanners. These devices produce high quality images free of illumination problems (such as non-uniform lighting). Unlike cameras, scanners have a built-in permanent calibration and are very easy to use. We sell different models in function of their scan area (the maximum leaf size they can digitise), speed and accuracy.
Note: Desktop scanners cannot be used in the field but are transportable and usable in remote locations where electrical power is available. |
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| Our lightweight portable scanners can be used for in the field leaf image acquisition. Non-destructive acquisition, while leaves are attached to the plant, is a possibility. Some models operate with batteries and do not require a computer to acquire images (they store images on memory cards). Other models take their power from a portable computer and allow to do in field leaf analysis1. Both have a very good image quality and ease of use. |  |
| 1 We recommend to do only basic leaf analysis (area, length, width) in field. Disease analysis is possible but requires a fast computer and we strongly recommend to validate the analysis (look at the computer screen to verify the measurements). | |
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The Leaf Image acquisition Kit (LAK) for digital cameras
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Conventional and inexpensive digital cameras1 can also be used for leaf image acquisition (in the field or laboratory). Precautions must be taken so that calibration can be done accurately and rapidly. To facilitate this task, we offer the Leaf image Acquisition Kit (LAK) for digital cameras. It is made of a plastic background and a translucent anti-reflective fold-up cover that presses the leaves against it to hold them flat. The background can be placed on soil or held in arms for non destructive acquisitions (leaf still on the plant). The background can also be installed on a base with a camera holder arm which allows to position a camera over it. With this setup it is easier to get the desired field of view and to maintain a constant distance between the camera and the leaves. When this condition is met, the same calibration can be used to analyse a series of images. 1 Almost any model can be used. We do not sell or recommend digital cameras |
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The LAK comes with stick-on waterproof removable calibration targets. These targets are pre-defined in WinFOLIA. You enter their dimensions once and calibrating images after is done with a single mouse click. |
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| The LAK comes in various sizes: | |
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• 30 x 40 cm (12" x 18")
• 45 x 60 cm (18" x 24") • 70 x 90 cm (24" x 36") |
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WinFOLIA software program
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| WinFOLIA is available in three different versions; Basic, Regular and Pro. For more informations regarding measurements and features offered by each version, click here. | |
Software specifications | WinFOLIA Systems specifications
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Copyright (c) 1996-2008 by Regent Instruments Inc. for entire contents. All rights reserved.
WinFOLIA and MacFOLIA are registered trademarks.
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Last Revision: July 29, 2009