Grain quality monitoring

A non-transitory computer-readable medium containing program logic to direct a processor to:

• receive signals corresponding to a captured image of bulk grain, the captured image comprising (A) multiple individual bulk grain elements that are partially overlapped by other bulk grain elements or that are partially overlapping other bulk grain elements and (B) non-grain elements selected from a group of non-grain elements consisting of:
• chaff, hulls, cobs, stems and pods;
• apply a feature extractor to the image to determine a feature of the bulk grain in the image;
• for each of a plurality of different sampling locations in the image, determine, based upon the feature of the bulk grain at the sampling location, a classification score for the presence of a classification of material at the sampling location;
• and
• output a signal indicating quality of the bulk grain of the image based upon an aggregate of the classification scores for the presence of the classification of material at each of the different sampling locations, wherein the signal is based upon a time or material flow weighted filter of a plurality of the aggregate of classification scores for the classification from multiple images.

A method comprising:

• capturing an image of bulk grain;
• applying a feature extractor to the image to determine a feature of the bulk grain in the image;
• for each of a plurality of different sampling locations within the image, determining, based upon the feature of the bulk grain at the sampling location, a classification score for presence of a classification of material at the sampling location;
• outputting a signal indicating quality of the bulk grain of the image based upon an aggregate of the classification scores of the different sampling locations;
• and
• applying a calibration function to the aggregate of the classification scores to determine a percent by weight of material having the classification for the image, wherein the signal is based upon the determined percent by weight of the material having the classification for the image.