Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Michaela Benz

Christian Muenzenmayer

Thomas Wittenberg

Andreas Ernst

Tobias Bergen

Robert Couronne

Frederik Zilly

Andreas Tobola

Christian Weigand

Christian Douniama

Holger Wentzlaff

Malte Avenhaus

Thomas Norgall

Thomas Bindl

Christian MÜNZENMAYER

Image processing device for producing in real-time a digital composite image from a sequence of digital images recorded by a camera device, in particular an endoscopic camera device, the image processing device including a selecting unit, a key point detection unit, a transforming unit and a joining unit, wherein the key point detection unit includes a maximum detection unit configured for executing following steps separately for the filter response for the reference image and for the filter response for the further image, wherein a variable threshold is used:i) creating blocks by dividing the respective filter response,ii) calculating the variable threshold for each of the blocks,iii) discarding those blocks of the blocks from further consideration, in which the respective filter response at a reference point of the respective block is less than the respective variable threshold.

Image processing device and method for producing in real-time a digital composite image from a sequence of digital images

What is provided is a system for visualizing digitalized image data having an image data source and an image data sink. The image data are associated to at least two different layers, wherein, for at least one of the layers as the reference layer, image data is present in at least two different resolutions. The layers show a common scene at different conditions of taking a picture. The image data source is configured to transfer to the image data sink image data of the reference layer in the at least two different resolutions in a prioritized manner relative to the image data of layers different from the reference layer. The image data source is configured to transfer to the image data sink, in a reload case where the image data source has transferred the image data of the reference layer to the image data sink at a presettable reference resolution, the image data of a presettable number of layers different from the reference layer in at least one presettable reload resolution.

System for visualizing image data

A pressure gauge for determining at least one pressure value describing a pressure of a fluid flowing in a pulsating manner in a phase of the pulsating flow, includes a pulse wave characterizer. The pulse wave characterizer is configured to obtain transmit time information of a pulse wave, and amplitude information of the pulse wave. The pressure gauge additionally includes a pressure value determiner configured to obtain a first pressure value describing a pressure of the fluid in a first phase, on the basis of the transmit time information and while using a mapping. The pressure value determiner is further configured to obtain a second pressure value describing a pressure of the fluid in a second phase, on the basis of the first pressure value and the amplitude information while using a mapping.

Pressure gauge, blood pressure gauge, method of determining pressure values, method of calibrating a pressure gauge, and computer program

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Erlangen, Germany

Michaela Benz