Abstract: A seismic source apparatus, configured to be maneuvered by a vehicle over terrain.

Abstract: An optical seismic surveying system including, a multibeam laser source including a plurality of laser-sources, a Diffractive-Optical-Element (DOE), an imager and a processor. The laser-sources direct respective laser-beams toward a single common focal point. The DOE is located at a single common focal point and configured to split each laser-beam into a plurality of laser-beams, toward an instantaneous area of interest. The laser-beams impinging on the instantaneous area of interest produce a laser spot assemblage including a plurality of laser spots. The imager acquires a plurality of defocused images of speckle patterns produced by diffused reflections of the laser spots. The speckle pattern correspond to a respective laser spot and thus to a respective sensing point in the instantaneous area of interest.

Abstract: A seismic source apparatus, configured to be maneuvered by a vehicle over terrain.

Abstract: A system and method for detecting movement of an object outside a line-of-sight of a camera is disclosed. The camera acquires images of a target that is impacted by light that is scattered from the object and by ambient light, and of a reference that is impacted by the ambient light. A processing circuitry can be configured to detect the movement of the object by calculating, for each of a plurality of acquired images, a compensated light intensity value (LIV), being a target LIV that is based on pixels in the respective acquired image that represent the target, as modified, based on a reference LIV that is based on pixels in the respective acquired image that represent the reference, to reduce an effect, on the target LIV, of changes in the ambient light during a time period between acquiring a given image and the acquiring of the respective acquired image.

Abstract: A system and method for detecting movement of a non-light-of-sight (NLOS) object in a space outside a line-of-sight (LOS) of a camera is disclosed. The camera acquires a sequence of successive images that each include a set of pixels, at least a subset thereof representing a target, being at least part of a visible object located within the LOS of the camera and impacted by light scattered from the NLOS object. The set of pixels of two images of the sequence, acquired from different positions of the camera, are registered into a common coordinate system, giving rise to two registered images. A target light intensity value is calculated for both registered images based on at least part of the set of pixels representing the target in the respective registered image. Movement of the NLOS object is detected based on a variation in the target light intensity value between registered images.

Abstract: A system and method for detecting movement of a non-light-of-sight (NLOS) object in a space outside a line-of-sight (LOS) of a camera is disclosed. The camera acquires a sequence of successive images that each include a set of pixels, at least a subset thereof representing a target, being at least part of a visible object located within the LOS of the camera and impacted by light scattered from the NLOS object. The set of pixels of two images of the sequence, acquired from different positions of the camera, are registered into a common coordinate system, giving rise to two registered images. A target light intensity value is calculated for both registered images based on at least part of the set of pixels representing the target in the respective registered image. Movement of the NLOS object is detected based on a variation in the target light intensity value between registered images.

Abstract: A system and method for detecting movement of an object outside a line-of-sight of a camera is disclosed. The camera acquires images of a target that is impacted by light that is scattered from the object and by ambient light, and of a reference that is impacted by the ambient light. A processing circuitry can be configured to detect the movement of the object by calculating, for each of a plurality of acquired images, a compensated light intensity value (LIV), being a target LIV that is based on pixels in the respective acquired image that represent the target, as modified, based on a reference LIV that is based on pixels in the respective acquired image that represent the reference, to reduce an effect, on the target LIV, of changes in the ambient light during a time period between acquiring a given image and the acquiring of the respective acquired image.

Abstract: An optical seismic surveying system including, a multibeam laser source including a plurality of laser-sources, a Diffractive-Optical-Element (DOE), an imager and a processor. The laser-sources direct respective laser-beams toward a single common focal point. The DOE is located at a single common focal point and configured to split each laser-beam into a plurality of laser-beams, toward an instantaneous area of interest. The laser-beams impinging on the instantaneous area of interest produce a laser spot assemblage including a plurality of laser spots. The imager acquires a plurality of defocused images of speckle patterns produced by diffused reflections of the laser spots. The speckle pattern correspond to a respective laser spot and thus to a respective sensing point in the instantaneous area of interest.