Seed and Grain Quality Analysis

Seed and Grain quality plays an important role in the production of Agronomic and Horticultural crops. In terms of quality, industry professionals pay particular attention to Skinning, Infection, Chitting, Rootlets, Grust and Draft, Size, and Classification. These individual attributes amount to the overall quality of the Seeds and Grains.

Better quality means better yields, which equates to better profit margins. The problem faced by the industry is that many indications to Seed and Grain defects are often invisible to the human eye. It is important to detect these invisible properties without destroying both the high quality Seeds and Grains, as well as the poor quality Seeds and Grains; All whilst still being time efficient. The solution for this is Multispectral Imaging. Multispectral Imaging allows the invisible bands of the Electromagnetic Spectrum to become visible. The hidden quality indicators of the Seeds and Grains become easy to see through Multispectral Imaging. However, simply highlighting these attributes does not solve the issue of Seed and Grain quality. We need to see how much of the seed is affected, with real numbers and percentages. We need accurate, instant diagnosis of what is affecting the seed. And ideally, we would want to know all of this information for each individual seed that makes up the entire sample, all whilst accurately quantifying the seeds in the sample.

Fusarium infection, infected wheat
Figure 1: Fusarium Infected Wheat. Credit: APS
Figure 2: VideometerLab4 highlighting seeds by size

This is where the VideometerLab4 comes in. The VideometerLab4 can detect, measure and highlight all of the previously mentioned attributes in a single image at a touch of a button. The VideometerLab4 gathers data from 365nm to 970nm on the Electromagnetic Spectrum, meaning its range includes wavelengths in the Ultra-violet, Visible and Near-Infrared bands. Once the data has been gathered, the VideometerLab4 reports to the software on your computer, where it can identify, analyse and quantify the attributes of the seeds and grains. Figure 2 demonstrates the VideoemeterLab4 highlighting a seed sample by size. The seeds highlighted in maroon are between 2mm to 4mm in size, those in pink are between 4mm-6mm, and any seed above 6mm in size are highlighted in navy blue.

Seed and Grain quality needs to be assessed for both Research and Development and for Quality Control. Research and Development would typically use smaller sample sizes, so the standard VideometerLab4 would be ideal. However, Quality Control Inspection can require much larger sample sizes to be measured. To cater for this, the VideometerLab4 can be integrated with the VideometerLab Autofeeder. The VideometerLab Autofeeder allows pre-built calibration models to be loaded and applied to large sample sizes for automated machine vision analysis. The continuous belt allows larger sample sizes to be measured with the same accuracy as a smaller sample size, making Seed and Grain analysis efficient for a wide range of different industries.

Figure 3: VideometerLab Autofeeder

Measuring Seed and Grain Quality with Multispectral Imaging video

Watch our “Measuring Seed and Grain Quality with Multispectral Imaging” video to gain a more detailed insight into the importance of seed and grain analysis. This video features footage of the both the VideometerLab4 and the Videometer Autofeeder in action.

VideometerLab 4 Multispectral Imaging Analyser

VideometerLab 4 is a vision-based lab analyser designed for fast and accurate determination of surface colour, texture, shape, size and chemical composition.

The easy-to-use system integrates illumination, camera, and computer technology with advanced digital image analysis and statistics. VideometerLab 4 provides a rapid assessment of uniform and non-homogeneous samples by combining information on all of the above parameters automatically in just a few seconds, requiring no sample preparation and leaving the sample intact.

Using strobed LED technology VideometerLab 4 combines measurements at up to 20 different wavelengths into a single high-resolution multispectral image. Every pixel in the image is a spectrum and the system can include wavelengths outside the range detected by traditional RGB technology.

To find out more about the VideometerLab 4, click the button below:

VideometerLab 4 | Multispectral Imaging System
VideometerLab 4 - Multispectral Imaging System


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