Abstract: A wearable 3D augmented reality display and method, which may include 3D integral imaging optics.

Abstract: The present disclosure includes systems and methods for detecting and recognizing human gestures or activity in a group of 3D volumes using integral imaging. In exemplary embodiments, a camera array including multiple image capturing devices captures multiple images of a point-of-interest in a 3D scene. The multiple images can be used to reconstruct a group of 3D volumes of the point-of-interest using the images. The system detects spatiotemporal interest points (STIPs) in the group of 3D volumes and assigns descriptors to each of the plurality of STIPs. The descriptors are quantized into a number of visual words to create clusters of the group of 3D volumes. The system builds a histogram for each of the visual words. Each 3D volume is classified using the histogram of the plurality of visual words, implying the classification of a human gesture in each 3D volumes.

Abstract: An imaging system is provided, configured for providing three-dimensional data of a region of interest. The system comprising: an optical unit and a control unit. The optical unit comprises a radiation collection unit and a detection unit. The radiation collection unit comprises at least two mask arrangement defining at least two radiation collection regions respectively, the mask arrangements are configured to sequentially apply a plurality of a predetermined number of spatial filtering patterns formed by a predetermined arrangement of apertures applied on radiation collected thereby generating at least two elemental image data pieces corresponding to the collected radiation from said at least two collection regions. The control unit comprising is configured for receiving and processing said at least two elemental image data pieces and determining a plurality of at least two restored elemental images respectively being together indicative of a three dimensional arrangement of the region being imaged.

Abstract: A system for three-dimensional visualization of object in a scattering medium includes a sensor for receiving light from the object in the scattering medium and a computing device coupled to the sensor and receiving a plurality of elemental images of the object from the sensor. The computing device causes the elemental images to be magnified through a virtual pin-hole array to create an overlapping pattern of magnified elemental images. The computing device also averages overlapping portions of the element images to form an integrated image.

Abstract: An imaging system is provided, configured for providing three-dimensional data of a region of interest. The system comprising: an optical unit and a control unit. The optical unit comprises a radiation collection unit and a detection unit. The radiation collection unit comprises at least two mask arrangement defining at least two radiation collection regions respectively, the mask arrangements are configured to sequentially apply a plurality of a predetermined number of spatial filtering patterns formed by a predetermined arrangement of apertures applied on radiation collected thereby generating at least two elemental image data pieces corresponding to the collected radiation from said at least two collection regions. The control unit comprising is configured for receiving and processing said at least two elemental image data pieces and determining a plurality of at least two restored elemental images respectively being together indicative of a three dimensional arrangement of the region being imaged.

Abstract: A smart pseudoscopic to orthoscopic conversion (SPOC) protocol, and method for using the SPOC protocol for three-dimensional imaging, are disclosed. The method allows full control over the optical display parameters in Integral Imaging (InI) monitors. From a given collection of elemental images, a new set of synthetic elemental images (SEIs) ready to be displayed in an InI monitor can be calculated, in which the pitch, microlenses focal length, number of pixels per elemental cell, depth position of the reference plane, and grid geometry of the microlens array (MLA) can be selected to fit the conditions of the display architecture.

Abstract: An optical security method for object authentication using photon-counting encryption implemented with phase encoded QR codes. By combining the full phase double-random-phase encryption with photon-counting imaging method and applying an iterative Huffman coding technique, encryption and compression of an image containing primary information about the object is achieved. This data can then be stored inside of an optically phase-encoded QR code for robust read out, decryption, and authentication. The optically encoded QR code is verified by examining the speckle signature of the optical masks using statistical analysis.

Abstract: A method disclosed herein relates to displaying three-dimensional images. The method comprises projecting integral images to a display device, and displaying three-dimensional images with the display device. Further disclosed herein is an apparatus for displaying orthoscopic 3-D images. The apparatus comprises a projector for projecting integral images, and a micro-convex-mirror array for displaying the projected images.

Abstract: A method disclosed herein relates to displaying three-dimensional images. The method comprising, projecting integral images to a display device, and displaying three-dimensional images with the display device. Further disclosed herein is an apparatus for displaying orthoscopic 3-D images. The apparatus comprising, a projector for projecting integral images, and a micro-convex-mirror array for displaying the projected images.

Abstract: A system for three-dimensional visualization of object in a scattering medium includes a sensor for receiving light from the object in the scattering medium and a computing device coupled to the sensor and receiving a plurality of elemental images of the object from the sensor. The computing device causes the elemental images to be magnified through a virtual pin-hole array to create an overlapping pattern of magnified elemental images. The computing device also averages overlapping portions of the element images to form an integrated image.

Abstract: A device disclosed herein relates to a rotation invariant data storage device comprising, a data storage device with an optically sensible image, encoded data stored within the sensible image, and a plurality of radial vectors stores the encoded data. The encoded data comprises an image that has been encrypted to a two-dimensional (2-D) white noise matrix and converted to a one-dimensional (1-D) array.

Abstract: A system for recognition of a target three-dimensional object is disclosed. The system may include a photon-counting detector and a three-dimensional integral imaging system. The three-dimensional integral imaging system may be positioned between the photon-counting detector and the target three-dimensional object.

Abstract: A method of encrypting a set of data is disclosed. The method may include encoding a set of data with a first encryption key, and transforming the set of data encoded with the first encryption key. The method may also include using a second encryption key to encode the transformation of the set of data encoded with the first encryption key. The method may also include transforming the encoded transformation of the set of data encoded with the first encryption key generating thereby and encrypted set of data.

Abstract: A method disclosed herein relates to displaying three-dimensional images. The method comprising, projecting integral images to a display device, and displaying three-dimensional images with the display device. Further disclosed herein is an apparatus for displaying orthoscopic 3-D images. The apparatus comprising, a projector for projecting integral images, and a micro-convex-mirror array for displaying the projected images.

Abstract: A system for recognition of a target three-dimensional object is disclosed. The system may include a photon-counting detector and a three-dimensional integral imaging system. The three-dimensional integral imaging system may be positioned between the photon-counting detector and the target three-dimensional object.

Abstract: A system for encrypting a set of data may include a signal source, and a first, second, third, and fourth subsystem. The first subsystem may receive a first signal from the signal source and provide as output therefrom a first output signal. The second subsystem may receive a second signal from the signal source and provide as output therefrom a second output signal. The third subsystem may combine the first and second output signals. The fourth subsystem may acquire a set of encrypted data.

Abstract: A method of encrypting a set of data is disclosed. The method may include encoding a set of data with a first encryption key, and transforming the set of data encoded with the first encryption key. The method may also include using a second encryption key to encode the transformation of the set of data encoded with the first encryption key. The method may also include transforming the encoded transformation of the set of data encoded with the first encryption key generating thereby and encrypted set of data.

Abstract: Disclosed herein is a method that relates to identifying a microorganism. The method comprising, diffracting laser light through a microorganism, combining a reference beam with the diffracted light on a single axis, and recording the combined light holographically as a three-dimensional image with a single exposure on a detector array. The method further comprising, reconstructing the holographic image and matching the reconstructed image with reference images of known microorganisms. Further disclosed herein is an apparatus for identifying a microorganism. The apparatus comprising, an interferometer to record an image of an unknown microorganism using single-exposure on-line (SEOL) digital holography, a means for reconstructing the recorded image, and a means for matching the reconstructed image with images of known microorganism.

Abstract: A three-dimensional imaging apparatus for imaging a three-dimensional object may include a microlens array, a sensor device, and a telecentric relay system positioned between the microlens array and the sensor device. A telecentric relay system may include a field lens and a macro objective that may include a macro lens and an aperture stop. A method of imaging a three-dimensional object may include providing a three-dimensional imaging apparatus including a microlens array, a sensor device, and a telecentric relay system positioned between the microlens array and the sensor device; and generating a plurality of elemental images on the sensor device, wherein each of the plurality of elemental images has a different perspective of the three-dimensional object.

Abstract: A method for three-dimensional reconstruction of a three-dimensional scene and target object recognition may include acquiring a plurality of elemental images of a three-dimensional scene through a microlens array; generating a reconstructed display plane based on the plurality of elemental images using three-dimensional volumetric computational integral imaging; and recognizing the target object in the reconstructed display plane by using an image recognition or classification algorithm.