Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno

Stichting Voor De Technische Wetenschappen

Frits Mastik

Antonius Franciscus Wilhelmus Van Der Steen

Fokko Pieter Wieringa

Dirkjan Bakker

Christoffel Leendert De Korte

Rene Gerardus Maria Van Melick

Johannes Antonius Schaar

A method of obtaining an image of buried structures in an object, comprising: providing a camera for imaging visual and infrared-images; providing a bounded light source; partly irradiating said object by said bounded light source; imaging a non-irradiated area of said object by said camera to image said buried structure; and combining said buried structure image with a visual image of said object. Accordingly an image can be obtained while discarding specular reflections of the object. Additionally there is disclosed a method of enhancing imaging of buried structures in an object, comprising: aligning said infrared light source with a visual light source; providing a first edge analysis of said infrared image; providing a second edge analysis of said visual image; comparing said first and second edge analysis; and discarding edges in said infrared image that are also detected in said second image.

Imaging of buried structures

A method for generating hardness information of tissue subject to a varying pressure. The method comprises receiving signals from the tissue from a sensor for measuring the deformation of the tissue in a measuring plane defined by the sensor, which sensor, during a varying pressure exerted on the tissue, is moved along the tissue in a direction transverse to the measuring plane; identifying strain of the tissue from the resulting signals; and relating the strain to elasticity and/or hardness parameters of the tissue. The method may comprise the step of displaying elasticity and/or hardness parameters of a tissue surface or tissue volume part extending practically parallel to the direction of motion of the sensor.

Three-dimensional tissue hardness imaging

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Rotterdam, Netherlands

Frits Mastik