5 research outputs found
Learning Visual Context by Comparison
Finding diseases from an X-ray image is an important yet highly challenging
task. Current methods for solving this task exploit various characteristics of
the chest X-ray image, but one of the most important characteristics is still
missing: the necessity of comparison between related regions in an image. In
this paper, we present Attend-and-Compare Module (ACM) for capturing the
difference between an object of interest and its corresponding context. We show
that explicit difference modeling can be very helpful in tasks that require
direct comparison between locations from afar. This module can be plugged into
existing deep learning models. For evaluation, we apply our module to three
chest X-ray recognition tasks and COCO object detection & segmentation tasks
and observe consistent improvements across tasks. The code is available at
https://github.com/mk-minchul/attend-and-compare.Comment: ECCV 2020 spotlight pape
Automatic detection of non-perfusion areas in diabetic macular edema from fundus fluorescein angiography for decision making using deep learning
Salt tolerance of barley induced by the root endophyte Piriformospora indicais associated with a strong increase in antioxidants
The root endophytic basidiomycete Piriformospora indica has been shown to increase resistance against biotic stress and tolerance to abiotic stress in many plants.
Biochemical mechanisms underlying P. indica-mediated salt tolerance were studied in barley (Hordeum vulgare) with special focus on antioxidants. Physiological markers for salt stress, such as metabolic activity, fatty acid composition, lipid peroxidation, ascorbate concentration and activities of catalase, ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase and glutathione reductase enzymes were assessed.
Root colonization by P. indica increased plant growth and attenuated the NaCl-induced lipid peroxidation, metabolic heat efflux and fatty acid desaturation in leaves of the salt-sensitive barley cultivar Ingrid. The endophyte significantly elevated the amount of ascorbic acid and increased the activities of antioxidant enzymes in barley roots under salt stress conditions. Likewise, a sustained up-regulation of the antioxidative system was demonstrated in NaCl-treated roots of the salt-tolerant barley cultivar California Mariout, irrespective of plant colonization by P. indica.
These findings suggest that antioxidants might play a role in both inherited and endophyte-mediated plant tolerance to salinity