plant disease detection system, computer-implemented method for detecting plant diseases and plant disease detection computer program product

摘要

a computer program system (100), method and product for determining plant diseases. the system includes an interface module (110) configured to receive an image (10) of a plant, the image (10) including a visual representation (11) of at least one plant element (1). a color normalization module (120) is configured to apply a color constancy method to the received image (10) to generate a color normalized image. an extractor module (130) is configured to extract one or more image parts (11e) from the color normalized image, wherein the extracted image parts (11e) correspond to at least one plant element (1). a filter module (140) configured: to identify one or more groupings (c1 to cn) by one or more visual characteristics within the extracted image parts (11e), wherein each grouping is associated with a plant element part showing characteristics of a plant disease; and to filter one or more candidate regions from one or more identified groupings (c1 to cn) according to a predefined threshold, using a bayes classifier that models visual trait statistics that are always present in a diseased plant image. a plant disease diagnostic module (150) configured to extract, using a statistical inference method, from each candidate region (c4, c5, c6, cn) one or more visual characteristics to determine for each candidate region one or more more probabilities indicating a particular disease; and to calculate a confidence score (cs1) for the particular disease by assessing all probabilities determined from the candidate regions (c4, c5, c6, cn).