Abstract:
Procédé de quantification de l'évolution de pathologies impliquant des changements de volume de corps représentés via une technique d'imagerie, caractérisé en ce qu'il comprend au moins : une première étape (101 ) de normalisation des niveaux de gris par une technique mi-chemin de deux images I 1 et I 2 représentant une même scène, résultant en deux images normalisées l' 1 et I' 2 , une deuxième étape (102) de calcul d'une carte de différences signées entre les deux images normalisées l' 1 et I' 2 , une troisième étape (103) comprenant au moins un test statistique se basant sur l'hypothèse d'une distribution gaussienne des niveaux de gris des tissus normaux des images normalisées l' 1 et I' 2 et/ou de la carte des différences calculée à la deuxième étape (102). Avantageusement, une quatrième étape peut combiner un ou plusieurs des tests réalisés à la troisième étape pour une caractérisation plus spécifique de révolution.
Abstract:
The present document describes a method and system for expediting bilinear filtering of textures, by reducing the number of data load operations. The method expands the original data layout with additional borders containing replicated texels. The replicated texels correspond either to wrapped-around texels for two- dimensional textures or neighboring faces in cube textures. Therefore, a 2x2 filter kernel for bilinear filtering is built which requires only one texel address to be computed, with all texel data readable with two load operations which are a predetermined stride apart. Different addressing modes are implemented by adjusting the sampling locus.
Abstract:
Breast density is a significant breast cancer risk factor measured from mammograms. Disclosed is a methodology for converting continuous measurements of breast density and calibrated mammograms into a four-state ordinal variable approximating the BI-RADS ratings. In particular, the present disclosure is directed to a calibration system for a specific full field digital mammography (FFDM) technology. The calibration adjusts for the x-ray acquisition technique differences across mammograms resulting in standardized images. The approach produced various calibrated and validated measures of breast density, one of which assesses variation in the mammogram referred to as Vc (i.e. variation measured from calibrated mammograms). The variation in raw mammograms [i.e. Vr] is a valid breast density risk factor in both FFDM in digitized film mammograms.
Abstract:
Systems, components, devices, and methods for understanding the content of an image are provided. A non-limiting example is a method for generating suggestions for arranging content based on understanding the contents of an image. The method includes the step of receiving a content file that includes a content region and an image. The method also includes the steps of generating a statistical analysis of the image and calculating a score based on the statistical analysis. The method also includes the step of classifying the image based on comparing the score to a threshold value. Additionally, the method includes the step of generating a suggestion for arranging the content region based on the classification of the image.
Abstract:
A method of generating a descriptor of at least part of an image includes receiving image data representing the at least part of the image. The image data is processed to identify at least one texture characteristic of the at least part of the image, thereby generating texture data indicative of a texture of the at least part of the image. The texture data is processed with the image data, thereby generating weighted texture data. A descriptor of the at least part of the image is generated using the weighted texture data.
Abstract:
Breast density is a significant breast cancer risk factor measured from mammograms. Disclosed is a methodology for converting continuous measurements of breast density and calibrated mammograms into a four-state ordinal variable approximating the BI-RADS ratings. In particular, the present disclosure is directed to a calibration system for a specific full field digital mammography (FFDM) technology. The calibration adjusts for the x-ray acquisition technique differences across mammograms resulting in standardized images. The approach produced various calibrated and validated measures of breast density, one of which assesses variation in the mammogram referred to as Vc (i.e. variation measured from calibrated mammograms). The variation in raw mammograms [i.e. Vr] is a valid breast density risk factor in both FFDM in digitized film mammograms.