Institut National De Recherche En Informatique Et En Automatique

Mauna Kea Technologies

Inria Institut National De Recherche

Gregoire Malandain

Nicholas Ayache

Xavier Pennec

Aymeric Perchant

Tom Vercauteren

Alexis Roche

A method for mosaicing frames from a video sequence is disclosed. Each frame is constituted by a point cloud, and each point in the point cloud is potentially acquired at a different time. The method involves compensating for motion and motion distortion due to acquisition time differences in each frame, applying a global optimization of inter-frame registration to align consistently the frames, and applying a reconstruction algorithm on the registered frames to construct a mosaic.

Robust mosaicing method, notably with correction of motion distortions and tissue deformations for a vivo fibered microscopy

A mosaicing method taking into account motion distortions, irregularly sampled frames and non-rigid deformations of the imaged tissue. The method for mosaicing frames from a video sequence acquired from a scanning device such as a scanning microscope, includes the steps of: a) compensating for motion and motion distortion due to the scanning microscope, b) applying a global optimization of inter-frame registration to align consistently the frames c) applying a construction algorithm on the registered frames to construct a mosaic, and d) applying a fine frame-to-mosaic non rigid registration. The method is based on a hierarchical framework that is able to recover a globally consistent alignment of the input frames, to compensate for the motion distortions and to capture the non-rigid deformations.

Robust mosaicing method, notably with correction of motion distortions and tissue deformations for in vivo fibered microscopy

An electronic data processing device receives first and second data sets representing first and second comparable digital images. It comprises registration means comprising a first module which calculates a main function representative of the correlation ratios between the data of the first and second sets, and a second module which determines a registration transformation between one of the images and the other from the main function.

Electronic device for automatic registration of images

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Antibes Juan les Pins, France

Gregoire Malandain