Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Recolector de Cienci...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 1 versions
addClaim

Method for the recognition of patterns in images affected by optical affected by optical degradations and application thereof in the prediction of visual acuity from a patients ocular aberrometry data.

Authors: Navarro Belsue, Rafael; Nestares, Óscar;

Method for the recognition of patterns in images affected by optical affected by optical degradations and application thereof in the prediction of visual acuity from a patients ocular aberrometry data.

Abstract

[EN]The invention relates to a pattern-recognition method involving the use of a decomposition, based on channels which are tuned at different frequencies and orientations, of the original patterns and of the image observed. According to the invention, simplifications can be made to the degradation model using the aforementioned decomposition, such that, from the observed image, it is possible to calculate the probability of each of the original images generating said observation. The inventive method is Bayesian and, as such, can include statistical information about the most probable degradations and the most abundant patterns as well as about the cost of making an error in a determined pattern. In this way, the invention provides a more reliable pattern recognition method which is adapted to the requirements of each application and which can, above all, withstand possible optical degradations to the image. One application which is of particular interest to the optical and ophthalmology sector consists in predicting the visual acuity of a patient from data relating to optical aberrations of the eye, provided by an aberrometer. [ES]Para reconocer los patrones, se usa una descomposición basada en canales sintonizados a distintas frecuencias y orientaciones, tanto, de los patrones originales como de la imagen observada. Utilizando esta descomposición es posible realizar simplificaciones en el modelo de degradación, de manera que a partir de la imagen observada se puede calcular la probabilidad de que cada una de las imágenes originales genere esa observación. El método, al ser Bayesiano, puede incluir información estadística tanto de las degradaciones (las mas probables) como de los patrones (los más abundantes), así como del coste de cometer un error en un determinado patrón, así el reconocimiento será mas fiable y adaptado a las necesidades de cada aplicación, y sobre todo robusto, ante posibles degradaciones ópticas de la imagen. Una aplicación de especial interés para el sector de la óptica y la oftalmología consiste en la predicción de la agudeza visual de un paciente a partir de los datos de las aberraciones ópticas del ojo, proporcionados por un aberrómetro.

Fecha de solicitud:08.03.2004.- Titular: Consejo Superior de Investigaciones Científicas (CISC).

Peer reviewed

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
    OpenAIRE UsageCounts
    Usage byUsageCounts
    visibility views 17
    download downloads 20
  • 17
    views
    20
    downloads
    Powered byOpenAIRE UsageCounts
Powered by OpenAIRE graph
Found an issue? Give us feedback
visibility
download
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
downloads
OpenAIRE UsageCountsDownloads provided by UsageCounts
0
Average
Average
Average
17
20
Green