MUlti Scale Image Comprehension
| Awarded principal investigator: Elise Colin (ONERA) |
Dedicated website: https://w3.onera.fr/ailab/fr/projet/ia-pour-limagerie-non-conventionnelle-dobservation-terrestre-la-chaire-music
Collaboration: ITAE Medical Reseach
Related work in partnership with CANOP project to assess the leaf physiological status from active polarized imaging
Real-Time Observations of Leaf Vitality Extinction with dynamic laser speckle imaging
An innovative, easy-to-use, non-invasive and real-time imaging method enables to image sap microcirculation within a leaf, the latter being a critical indicator of plant vitality and health. The approach relies on controlling two parameters: the integration time which influences the radiometric level and the frame acquisition rate from which the extraction of the inter-frame decorrelation provides the dynamic information. The latter parameter is the key to generate activity index maps unlike conventional methods that are only based on the first parameter. After cutting and during a period of 48h, decrease vitality of a fig leaf was continuously observed by varying the frame acquisition rate, highlighting the anatomy of the leaf’s circulatory network, and in particular differences in sap circulation between small and large vessels.
Publication and communication
E. Colin, E. Garcia-Caurel, K. Adeline, A. Plyer and X. Orlik (2024). Real-Time Observations of Leaf Vitality Extinction by Dynamic Speckle Imaging. Photonics, 11, 1086.