Title:
DEVICE FOR ESTIMATING OPTICAL FLOW IN IMAGES USING FPGAS
Document Type and Number:
WIPO Patent Application WO2005050342
Kind Code:
A3
Abstract:
The invention relates to a device which is designed to estimate the dense optical flow of a video sequence in real time and which supplies the velocities of the movement of the grey levels present in the sequence. According to the invention, the digitised images are used as input for the system. As shown in the figure, the processing is performed by the inventive device using an architecture that is based on a computation of the space-time gradients of the sequence (derivatives module). The invention also comprises a control unit (control module) which can be used to configure the operation of the unit. In addition, the device supplies the velocity of each pixel (velocity computation module). The device is suitable for systems that are used for mobile object segmentation, tracking, 3D scene reconstruction, video compression, etc., in which all of the processing is performed in real time, said system being embedded and, consequently, portable.
Inventors:
ROS VIDAL EDUARDO (ES)
MOTA FERNANDEZ SONIA (ES)
DIAZ ALONSO ANTONIO JAVIER (ES)
MOTA FERNANDEZ SONIA (ES)
DIAZ ALONSO ANTONIO JAVIER (ES)
Application Number:
PCT/ES2004/000523
Publication Date:
June 30, 2005
Filing Date:
November 23, 2004
Export Citation:
Assignee:
UNIV GRANADA (ES)
ROS VIDAL EDUARDO (ES)
MOTA FERNANDEZ SONIA (ES)
DIAZ ALONSO ANTONIO JAVIER (ES)
ROS VIDAL EDUARDO (ES)
MOTA FERNANDEZ SONIA (ES)
DIAZ ALONSO ANTONIO JAVIER (ES)
International Classes:
G06T7/00; G06T7/20; H04N7/36; G06F; (IPC1-7): G06T7/00; G06T7/20; H04N7/36
Foreign References:
| US6215898B1 | 2001-04-10 | |||
| US20020106120A1 | 2002-08-08 | |||
| DE19712017A1 | 1998-09-17 |
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