Nxp B.v.

Safran Data Systems

Zodiac Data Systems

Yann Picard

Baptiste Guillot

Carolina Miro

Stephane Auberger

Frederic Saffre

Frédéric Saffre

The invention relates to a method for locating a transmitter, which is implemented in a processing unit of a processing station of a locating system.

Locating a transmitter by means of a plurality of geographically remote receiving stations using known object paths

The invention relates to a receiving station () of a system for processing signals originating from an emitter, comprising: a first receiver () configured to acquire signals from the emitter; and a second receiver () configured to acquire signals from a satellite navigation system. The station is characterised in that the first receiver () and the second receiver () are synchronised by the same local clock () generating a local time base, the acquired signals being dated by said time base.

System for processing signals from an emitter for the purpose of dating the signals and locating the emitter, and associated receiving station

The invention concerns a method for digital image stabilization for removing jitter from an original sequence of images () generated by a camera. The original sequence () is applied to a stabilization algorithm (). The global motion of a camera is estimated and filtered () using a default motion filter. Predetermined parameters () are extracted from both the original () and stabilized () sequences of images. A measure value is computed in order to evaluate () the stabilization quality and compared to a threshold. Depending on the results of the evaluation (O, O') the stabilization algorithm () uses an alternative filter, in order to improve stabilization quality, or continues to use the default filter.

Method and device for digital image stabilization

The present invention relates to a method and system for a digital image stabilization intended to remove unwanted camera movement or jitter, both translational and rotational jitter. The system comprises the following means: 1) a motion estimation stage () of the global motion of the camera: block motion vectors are calculated for specific parts of the image and global motion parameters representing the camera motion are then derived. 2) a motion/jitter filtering stage (): the translation vector and the rotation angle are filtered separately, a boundary check being then performed for verifying if the correction thus done is not above an allowed threshold. 3) a jitter compensation stage (): the raw sequence is compensated according to the extracted jitter and the result is a stabilized sequence.

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Caen, France

Yann Picard