Koninklijke Philips Corporation N.v.

Koninklijke Philips Electric N.v.

Franck Laffargue

Jean-Michel Rouet

Maxim Fradkin

Roy Van Dijk

Jurgen Jean Louis Hoppenbrouwers

Benoit Mory

Nicolas Santini

An image processing system, for processing a 3-D image of a 3-D substantially tubular structure (AAA), formed of a lumen (LUM) limited by a wall (), comprising processing means () for segmenting the 3-D external or internal surface of the structure; estimating a local parameter such as the local wall thickness (T) or diameters; and display means () for displaying the 3-D surface of segmentation with zones colorized according to a color code, so that to indicate the local parameter values in said zones. The system may comprise processing means to generate () a 3-D virtual cylinder and projecting () the color-coded 3-D segmentation surface onto the 3-D virtual cylinder surface colorized according to the same color-code; and projecting the 3-D virtual cylinder surface onto a 2-D color-coded map; and display means for displaying the 2-D color-coded map with colorized zones indicating the local parameter values (T) in said zones ().

Image processing system for displaying information relating to parameters of a 3-D tubular object

An image processing system comprising 3D image data processing means of automatic mapping a 3-D Surface Model onto the surface of an object of interest in a 3-D image, for estimating a model-based 3-D segmentation surface, comprising visualizing means and further comprising means of interactive adaptation of the segmentation surface to the actual surface of the object of interest including means of interactive selection of a 2D data plane (DP) that intersects the 3-D segmentation surface along a 2-D Model Curve (MC), said Data Plane having a user-selected orientation with respect to said surface, which is appropriate for the user to visualize a 2-D portion called Aberrant Curve (AC) of said Model Curve to be modified; means of interactive definition of a Guiding Curve (GC) in the 2-D Data Plane; means of interactive adaptation of said Aberrant Curve (AC) to said Guiding Curve (GC); and means of further automatically adapting the 3D segmentation surface within a neighborhood of the interactively adapted Aberrant Curve. The surface Model is favorably a Mesh Model.

Three-dimensional segmentation using deformable surfaces

An encoding and a decoding method for transmitting and storing description element(s) of an XML-like document which is an instance of an XML-like schema.

Binary format for MPEG-7 instances

Method of calculating new luminance value data based on original luminance value data to be displayed on a matrix display device, where luminance value data are coded in sub-fields, and double-line addressing for the least significant sub-fields is used for reducing the addressing time. A reduction of the difference between the new data and the original data is obtained by computing a new common value for the least significant sub-fields of a set of neighboring or adjacent lines, and new values for the most significant sub-fields of each line of said set of adjacent lines. The method comprises embodiments which are applicable to both binary and non-binary sub-fields.

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Poissy, France

Franck Laffargue