Abstract: An imaging system includes a stationary imager. An opaque enclosure includes a plurality of apertures at different locations on the enclosure and a plurality of stationary beam splitters arranged within the enclosure such that light that enters the enclosure through each of the apertures is directed to the imager. A shutter unit includes an opaque surface that includes at least one window. The shutter unit is rotatable relative to the enclosure such the window is sequentially aligned with each of the apertures to enable light from a field of view to enter the enclosure through that aperture, the opaque surface preventing light from concurrently entering the enclosure through more than one of the apertures.

Abstract: An imaging system includes a stationary imager. An opaque enclosure includes a plurality of apertures at different locations on the enclosure and a plurality of stationary beam splitters arranged within the enclosure such that light that enters the enclosure through each of the apertures is directed to the imager. A shutter unit includes an opaque surface that includes at least one window. The shutter unit is rotatable relative to the enclosure such the window is sequentially aligned with each of the apertures to enable light from a field of view to enter the enclosure through that aperture, the opaque surface preventing light from concurrently entering the enclosure through more than one of the apertures.

Abstract: The present invention provides techniques for detecting foreign objects in a region of interest in maritime environments. Image data indicative of a sequence of successively acquired images of the region of interest, is analyzed to determine candidate points of interest, and data indicative of said points is processed to identify candidate points that are adjacently accumulated in different locations in images data. Grouping data may be then generated based on the identified accumulations of candidate points indicative of a group of said candidate points. The grouping data is processed to identify spatio-temporal correlation between the points in the group and determine a corresponding track function, thereby enabling detection of a presence of a foreign object in the image data.