New publication: Robust Species Distribution Mapping of Crop Mixtures Using Color Images and Convolutional Neural Networks

Our latest work in the Smartgrass project was recently published in the Sensors special issue Sensing Technologies for Agricultural Automation and Robotics. With an optimized model and extensive high quality images, new state of the art prediction results in grass clover mixtures was presented. Using a specially developed ATV-mounted camera, the method was applied on 29.848 in-field images to sparsely map 225 hectare for the local legume content.

ESHRE 2019 Presentation – Automatic morphological grading of human blastocysts with time-lapse imaging and artificial intelligence

Mikkel Fly Kragh presented his work on automating human embryo grading at the European Society of Human Reproduction and Embryology (ESHRE) conference this year in front of an audience of around 2,000. The abstract was submitted in February and selected for oral presentation the 25th of June in Vienna, Austria. The full abstract is available here.

Large-scale Mapping of Mixed Crop Fields of Clover and Grass

We recently presented our preliminary results in large-scale mapping of grass-clover leys at “Græsland 2018”, the largest grass-clover event in northern Europe, hosted by DLF.

Using an ATV, numerous georeferenced images were collected a couple of days before the first harvest of the 2018 season. Using an automated segmentation of each image into grass (blue), clover (red), and soil (green), the spatial distribution of the three is qualitatively visualized across the field. The three sample images exemplify the corresponding distribution at the three points in space.

In the future, by mounting the camera directly on front of the harvester, the farmer can monitor his entire fields when harvesting, without the need for driving an ATV. This allows the farmer to optimize his fertilization strategy based on the condition and spatial clover/grass distributions of his fields.

For more information, contact Søren Skovsen.

Hierarchical Classification in Mixed Crops of Clover and Grass

Our previous work in pixel-wise classification of high-resolution RGB images of grass-clover leys into clover, grass, and weeds demonstrated state of the art accuracy.

Extending this work into a two-step classification scheme with corresponding  hierarchical labels, we have demonstrated an extended segmentation of clovers into the present species in the dataset: red clover (Trifolium pratense) and white clover (Trifolium repens).

The quantitative results of the segmentations on the hand-annotated test set are stated in the paper from the ICPA proceedings.

Qualitative results of the hierarchical segmentation on two images are shown below.

For more information, contact Søren Skovsen.

Improved Weed instance Detector in Cereal Fields

The following samples show some promising results of an automated weed instance detector that works in cereal fields and is able to distinguish monocot (red) from dicot (blue) weeds. It utilizes the focal-loss introduced by Facebook AI Research (FAIR), which balance the error contribution based on how easy detectable they are.
Even though the final aim is to classify each weed instance, it is sometimes not possible due to the small size of the weeds. In this case a mono/dicot discrimination is still valuable to determine a suitable weed control strategy.

Weed Detection In Cereal

Weed Detection In Cereal

Weed Detection In Cereal
For more information, contact Mads Dyrmann