초록 ▼

Methods and apparatus providing model-based feature tracking for location assessment of a sensor platform, or tracking of a feature are disclosed wherein a series of predictive models are developed to predict a location of features in subsequently acquired sensor data. Feature location data acquired

Methods and apparatus providing model-based feature tracking for location assessment of a sensor platform, or tracking of a feature are disclosed wherein a series of predictive models are developed to predict a location of features in subsequently acquired sensor data. Feature location data acquired by a sensor in a previous platform position assessment is used to build a model corresponding to anticipated feature locations in data acquired for a present platform position assessment.

대표청구항 ▼

[ What is claimed is:] [7.] A method for maintaining a point of reference as a sensor scans an object where one of the sensor and the object move relative to the other, the method comprising the steps of:sensing the object at a present assessment point to produce image data;extracting feature locati

[ What is claimed is:] [7.] A method for maintaining a point of reference as a sensor scans an object where one of the sensor and the object move relative to the other, the method comprising the steps of:sensing the object at a present assessment point to produce image data;extracting feature location data from the image data;prior to a second assessment point, using the feature location data to prepare a first model which contains information identifying a feature and an anticipated location of the feature in a subsequent image associated with the second assessment point;comparing the anticipated feature location data in the first model to feature location data extracted from the subsequent image;determining when a match occurs between the anticipated feature location data in the first model and the feature location data extracted from the subsequent image;correcting a sensor orientation based on conditions corresponding to when a match occurs between the model data and the subsequent image data; andreplacing the first model with a new model, wherein the new model is constructed using the feature location data extracted from the subsequent image.