Abstract: An exemplary apparatus determines the dimensions of a package while being moved by a transport through a scanning zone. Sensors with different respective fields of view are disposed about a scanning zone and generate corresponding frames of 3-D images where some of the points represent the transport and package. A computing apparatus translates the points in the images into a transport coordinate system with a common point of origin on the transport so that the package does not appear to be in motion from frame to frame. The computing apparatus merges the translated points in different frames into a combined point cloud image and deletes points representing the transport resulting in a final point cloud image of the package. The computing apparatus determines the dimensions of the package based on the location of points representing the package in the final point cloud image.

Abstract: A PIV system provides a bias velocity component to each flow field speckle pattern recorded on a video array by rastering each corresponding recorded electrical image pattern by a select number of raster lines in the time interval prior to recording a succeeding speckle pattern image, thereby providing a calibrated spatial offset between recorded images.

Abstract: A panoramic imaging system is formed from select configurations of micro-optic multiplets (MOM) comprised of two microlens modules (MLM). The MLMs themselves are formed from arrays of microlenses. The present panoramic imaging system is characterized by the two MLMs configured on concentric approximately spherical surfaces. The optic axis of each of the microlenses is tilted slightly with respect to its neighbor to allow for proper alignment of images to form a single primary image on a substantially spherical global image surface.

Abstract: A variety of optical systems can be formed from select configurations of micro-optic multiplets (MOM) comprised of two or more microlens modules (MLM). The MLMs themselves are formed from planar arrays of microlenses. An optical system configured in accordance with the present invention forms a single primary image, together with a set of images transversely displaced from an optic axis and is characterized by the property that the image distance and the object distance move in the same direction, in stark contrast to known lens systems. For example, when an object distance decreases, the corresponding image distance also decreases with the present optical system.

Abstract: A wavefront sensing and compensating system for detecting and correcting for distortion in light wavefronts is described in which the wavefront is divided into a plurality of subapertures and light intensified and imaged as spots of light from each subaperture onto a detector array. The individual detector elements of the array form a plurality of electrical signals proportional to the local divergence of the vector gradient field (.gradient..sup.2 .phi.). This .gradient..sup.2 .phi. signal after interfacing or reconstruction is applied to corrective mirrors which may be of the deformable or membrane type.