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Title: | Algorithmes optimaux pour la generation d’images HDR. Une etude des bornes de performance |
Authors: | Aguerrebere, Cecilia Delon, Julie Gousseau, Yann Musé, Pablo |
Type: | Ponencia |
Keywords: | First-price auctions, Network economics, Pricing, Reimbursement, Quality of Service, Stackelberg games |
Descriptors: | Procesamiento de Señales |
Issue Date: | 2013 |
Abstract: | Nous posons le probl`eme de l’estimation de l’irradiance comme un probl`eme d’estimation statistique et en calculons la borne de performance (borne de Cram´er-Rao). Nous montrons qu’elle ne peut ˆetre atteinte, mais qu’une m´ethode r´ecente [5] permet de l’approcher. Nous montrons ensuite qu’en tenant compte des ´echantillons satur´es, les r´esultats d’estimation de l’irradiance sont am´elior´es. Les r´esultats obtenus justifient l’introduction d’un nouvel estimateur qui, contrairement aux m´ethodes de la litt´erature, prend en compte les ´echantillons satur´es. We state the problem of irradiance estimation as a statistical parameter estimation problem and compute the performance bounds of the estimation (Cram´er-Rao lower bound). We show that no efficient estimator exists under the stated hypothesis. However, we find that a recently proposed method [5], performs very close to this bound. Moreover, we show that releasing one of the working hyphotesis (including the saturated samples) the irradiance estimation can be improved. We introduce a new estimation method that, unlike existing methods, takes into account the information provided by the saturated samples |
IN: | GRETSI 2013. Symposium on Signal and Image Processing. Brest, France, set. 2013 |
Citation: | Aguerrebere, C, Delon, J, Gousseau, Y, Muse, P. "Algorithmes optimaux pour la génération d’images HDR. Une étude des bornes de performance" GRETSI 2013. Symposium on Signal and Image Processing. Brest, France, set- 2013. |
Academic department: | Procesamiento de Señales |
Investigation group: | Tratamiento de Imágenes |
License: | Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
Appears in Collections: | Publicaciones académicas y científicas - Instituto de Ingeniería Eléctrica |
Files in This Item:
File | Description | Size | Format | ||
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ADGM13.pdf | 2,68 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License