| 摘要 |
A method for detecting changes in locations of persons and objects is disclosed. The method includes projecting a plurality of imaging planes across a specified area near a ground level and at none or least one pre-determined height from the ground level. The method also includes capturing respective imaging lines from the plurality of planes via one or more imaging components, observed when the objects or persons intersect the projected imaging planes. The method further includes recording a standard shape of the respective imaging lines in absence of any person or object within the specified area to establish a baseline image. The method also includes comparing each of successive captured imaging lines with the baseline image of the respective lines. The method further includes determining one or more changes in discontinuities in the captured imaging lines due to interception caused by movement of the object based upon the comparison. The method also includes translating the changes in discontinuities to determine an occurrence of an event of interest and alerting an operator in case of occurrence of the event of interest. |
