Titre : Oryza

Oryza : Questions médicales fréquentes

Termes MeSH sélectionnés :

Image Processing, Computer-Assisted
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de maladies du riz ?\nComment reconnaître le stress hydrique sur le riz ?\nQuels signes de carences nutritionnelles ?\nComment identifier les ravageurs du riz ?\nQuels symptômes d'infections fongiques ?", "url": "https://questionsmedicales.fr/mesh/D012275?mesh_terms=Image+Processing,+Computer-Assisted&page=3#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Oryza", "description": "Comment prévenir les maladies du riz ?\nQuelles pratiques culturales pour le riz ?\nComment éviter le stress hydrique ?\nQuels traitements préventifs contre les ravageurs ?\nComment choisir des semences résistantes ?", "url": "https://questionsmedicales.fr/mesh/D012275?mesh_terms=Image+Processing,+Computer-Assisted&page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Oryza", "description": "Quels traitements pour les maladies du riz ?\nComment gérer les ravageurs du riz ?\nQuels engrais pour améliorer 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affecte-t-elle le riz ?\nQuels impacts des pratiques agricoles sur le riz ?", "url": "https://questionsmedicales.fr/mesh/D012275?mesh_terms=Image+Processing,+Computer-Assisted&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment identifier les variétés de riz ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Les variétés de riz peuvent être identifiées par des caractéristiques morphologiques et génétiques." } }, { "@type": "Question", "name": "Quels tests pour évaluer la qualité du riz ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de grain, d'humidité et de contaminants sont utilisés pour évaluer la qualité du riz." } }, { "@type": "Question", "name": "Comment détecter les maladies du riz ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "L'observation des symptômes sur les feuilles et les grains aide à détecter les maladies du riz." } }, { "@type": "Question", "name": "Quels outils pour le diagnostic des cultures ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Des outils comme les microscopes et les tests PCR sont utilisés pour diagnostiquer les cultures." } }, { "@type": "Question", "name": "Comment évaluer la résistance des variétés de riz ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des essais en champ et des tests en laboratoire évaluent la résistance des variétés de riz." } }, { "@type": "Question", "name": "Quels symptômes de maladies du riz ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent des taches, un flétrissement et des décolorations des feuilles." } }, { "@type": "Question", "name": "Comment reconnaître le stress hydrique sur le riz ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Le stress hydrique se manifeste par un flétrissement et un jaunissement des feuilles." } }, { "@type": "Question", "name": "Quels signes de carences nutritionnelles ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Les carences se traduisent par des décolorations et des croissances anormales des plantes." } }, { "@type": "Question", "name": "Comment identifier les ravageurs du riz ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Les ravageurs causent des dommages visibles comme des trous dans les feuilles et des déformations." } }, { "@type": "Question", "name": "Quels symptômes d'infections fongiques ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Les infections fongiques se manifestent par des taches brunes et des moisissures sur les grains." } }, { "@type": "Question", "name": "Comment prévenir les maladies du riz ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "La rotation des cultures et l'utilisation de semences saines aident à prévenir les maladies." } }, { "@type": "Question", "name": "Quelles pratiques culturales pour le riz ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Des pratiques comme le désherbage et la fertilisation régulière sont essentielles pour le riz." } }, { "@type": "Question", "name": "Comment éviter le stress hydrique ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "L'irrigation adéquate et le choix de variétés adaptées aident à éviter le stress hydrique." } }, { "@type": "Question", "name": "Quels traitements préventifs contre les ravageurs ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "L'utilisation de pièges et de traitements biologiques peut prévenir les infestations." } }, { "@type": "Question", "name": "Comment choisir des semences résistantes ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Sélectionner des semences certifiées et adaptées aux conditions locales est crucial." } }, { "@type": "Question", "name": "Quels traitements pour les maladies du riz ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les traitements incluent l'utilisation de fongicides et de pratiques culturales adaptées." } }, { "@type": "Question", "name": "Comment gérer les ravageurs du riz ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "La gestion intégrée des ravageurs combine des méthodes chimiques et biologiques." } }, { "@type": "Question", "name": "Quels engrais pour améliorer le riz ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Des engrais riches en azote, phosphore et potassium sont recommandés pour le riz." } }, { "@type": "Question", "name": "Comment traiter le stress hydrique ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "L'irrigation contrôlée et le choix de variétés résistantes aident à traiter le stress hydrique." } }, { "@type": "Question", "name": "Quels remèdes naturels pour le riz ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Des extraits de plantes et des solutions biologiques peuvent être utilisés comme remèdes." } }, { "@type": "Question", "name": "Quelles complications des maladies du riz ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications incluent des pertes de rendement et des impacts économiques significatifs." } }, { "@type": "Question", "name": "Comment les ravageurs affectent-ils le rendement ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Les ravageurs peuvent réduire le rendement en endommageant les feuilles et les grains." } }, { "@type": "Question", "name": "Quels impacts du stress hydrique sur le riz ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Le stress hydrique peut entraîner une réduction de la croissance et des rendements." } }, { "@type": "Question", "name": "Quelles pertes économiques liées aux maladies ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Les maladies peuvent entraîner des pertes économiques importantes pour les agriculteurs." } }, { "@type": "Question", "name": "Comment les conditions climatiques affectent-elles le riz ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Les conditions climatiques extrêmes peuvent aggraver les maladies et réduire les rendements." } }, { "@type": "Question", "name": "Quels facteurs de risque pour les maladies du riz ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent l'humidité élevée, la densité de plantation et les semences infectées." } }, { "@type": "Question", "name": "Comment le climat influence-t-il le riz ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Le climat, notamment la température et les précipitations, influence la croissance du riz." } }, { "@type": "Question", "name": "Quels sols favorisent les maladies du riz ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Les sols mal drainés et riches en matière organique peuvent favoriser les maladies." } }, { "@type": "Question", "name": "Comment la monoculture affecte-t-elle le riz ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "La monoculture augmente le risque de maladies et de ravageurs en réduisant la biodiversité." } }, { "@type": "Question", "name": "Quels impacts des pratiques agricoles sur le riz ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Des pratiques inappropriées peuvent accroître les risques de maladies et réduire les rendements." } } ] } ] }

Sources (10000 au total)

An unsupervised image registration method employing chest computed tomography images and deep neural networks.

Deformable image registration is crucial for multiple radiation therapy applications. Fast registration of computed tomography (CT) lung images is challenging because of the large and nonlinear deform... In this study, an unsupervised lung registration network (LRN) with cycle-consistent training is proposed to align two acquired CT-derived lung datasets during breath-holds at inspiratory and expirato... The results showed that the LRN with an average TRE of 1.78 ± 1.56 mm outperformed VoxelMorph with an average TRE of 2.43 ± 2.43 mm, which is comparable to that of SSTVD with an average TRE of 1.66 ± ... Therefore, this proposed method shows significant potential for use in time-sensitive pulmonary studies, such as lung motion tracking and image-guided surgery....

Deep learning image reconstruction algorithm: impact on image quality in coronary computed tomography angiography.

To perform a comprehensive intraindividual objective and subjective image quality evaluation of coronary CT angiography (CCTA) reconstructed with deep learning image reconstruction (DLIR) and to asses... Fifty-one patients (29 males) undergoing clinically indicated CCTA from April to December 2021 were prospectively enrolled. Fourteen datasets were reconstructed for each patient: three DLIR strength l... DLIR algorithm did not impact vascular attenuation (P ≥ 0.374). DLIR_H showed the lowest noise, comparable with ASiR-V 100% (P = 1) and significantly lower than other reconstructions (P ≤ 0.021). DLIR... DLIR_M significantly improves CCTA image quality and has very strong correlation with routinely applied ASiR-V 50% dataset in the diagnosis of CAD....

Automatic detection of A-line in lung ultrasound images using deep learning and image processing.

Auxiliary diagnosis and monitoring of lung diseases based on lung ultrasound (LUS) images is important clinical research. A-line is one of the most common indicators of LUS that can offer support for ... In order to solve the disadvantages of traditional A-line detection methods, realize automatic and accurate detection, and provide theoretical support for clinical application, we proposed a novel A-l... First, the improved Faster R-CNN model with a selection strategy of localization box was designed to accurately locate the pleural line. Then, the LUS image below the pleural line was segmented for in... After 100 epochs, the mean loss value of training and validation set of improved Faster R-CNN model reached 0.6540 and 0.7882, with the validation accuracy of 98.70%. The trained pleural line localiza... The proposed method combining image processing and deep learning can automatically and accurately detect A-line in LUS images with different probe types, which has important application value for clin...