Method for analyzing movements in temporal sequences of digital images
First Claim
1. A method for analyzing temporal sequences of digital images, comprising the steps of:
- providing temporal sequences of digital images from at least one sensor;
deriving measured movement data from the temporal sequences of digital images;
deriving predicted movement data from the temporal sequences of digital images;
providing temporal sequences of predicted measurement data and temporal sequences of measured measurement data;
determining temporal sequences of state variables in a temporally recursive fashion using a comparison of the temporal sequences of predicted measurement data, that includes the predicted movement data, with the temporal sequences of measured measurement data, that includes the measured movement data;
said temporal sequences of state variables being input to a measurement map, and said predicted movement data and said temporal sequences of predicted measurement data being output from said measurement map;
said predicted movement data and said temporal sequences of digital images being input to a formation device, measured movement data and said temporal sequences of measured movement data being output from said formation device;
said temporal sequences of measured movement data and said temporal sequences of predicted measurement data being into to a comparator, and temporal sequences of resultant measurement data being output from said comparator; and
said temporal sequences of resultant measurement data and said temporal sequences of state variables being input to a time-recursive filter, and said temporal sequences being output from said time-recursive filter.
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Abstract
Temporal sequences of predicted measurement data (Y), among which there are predicted movement data (W) relating to temporal sequences of digital images (I), are compared with temporal sequences of measured measurement data (S), among which there are measured movement data (V) relating to the same temporal sequences of digital images (I), by forming differences (D) from measured measurement data (S) and predicted measurement data (Y). These differences (D) are fed to a time-recursive filter (TRF) for estimating temporal sequences of state variables (X). The predicted measurement data (Y), including the predicted movement data (W) are determined from these state variables (X) with the aid of a measurement map (H). These predicted movement data (W) are used to determine (ME) measured movement data (V) relating to the temporal sequences of digital images (I). The method facilitates the determination of spatial structures and the analysis of spatial object movements, including intrinsic movement. Moving objects can be detected and segmented reliably.
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Citations
20 Claims
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1. A method for analyzing temporal sequences of digital images, comprising the steps of:
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providing temporal sequences of digital images from at least one sensor; deriving measured movement data from the temporal sequences of digital images; deriving predicted movement data from the temporal sequences of digital images; providing temporal sequences of predicted measurement data and temporal sequences of measured measurement data; determining temporal sequences of state variables in a temporally recursive fashion using a comparison of the temporal sequences of predicted measurement data, that includes the predicted movement data, with the temporal sequences of measured measurement data, that includes the measured movement data; said temporal sequences of state variables being input to a measurement map, and said predicted movement data and said temporal sequences of predicted measurement data being output from said measurement map; said predicted movement data and said temporal sequences of digital images being input to a formation device, measured movement data and said temporal sequences of measured movement data being output from said formation device; said temporal sequences of measured movement data and said temporal sequences of predicted measurement data being into to a comparator, and temporal sequences of resultant measurement data being output from said comparator; and said temporal sequences of resultant measurement data and said temporal sequences of state variables being input to a time-recursive filter, and said temporal sequences being output from said time-recursive filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification