A method comprises obtaining input data comprising a hologram of a 3-dimensional (3D) particle field, a depth map of the 3D particle field, and a maximum phase projection of the 3D particle field. The method also comprises applying a U-net convolutional neural network (CNN) to the input data to generate output data. Encoder blocks have residual connections between a first layer and a second layer that skips over a convolution layer of the encoder block. Decoder blocks have residual connections between a first layer and a second layer that skips over a convolution layer of the decoder block. The output data includes a channel in which pixel intensity corresponds to relative depth of particles in the 3D particle field and an output image indicating locations of centroids of the particles in the 3D particle field.

An optical film including a recording surface on which a plurality of unit blocks is disposed at regular intervals. For these unit blocks, phase components of light from a reconstruction point are calculated. The recording surface includes a calculated element region provided with an array of the unit blocks for which phase components of light from the reconstruction point are calculated for reproduction of an image. A first image is a monotone reconstruction image having even brightness, and a second image is a grayscale image having brightness gradation.

The present disclosure relates to a method for computing a holographic interference pattern for a holographic plane including pixels of an illuminated three-dimensional, 3D, scene having object points representing one or more 3D objects. The method involves: determining, for a respective object point, a total light component contributed by one or more light sources in the 3D scene; and calculating, for a respective pixel, a complex-valued amplitude based on the total light component of non-occluded object points within a viewing cone of the pixel, thereby deriving the holographic interference pattern. The present disclosure further relates to a computer program product implementing the method, a computer-readable storage medium comprising the computer program product and a data processing system for carrying out the method.

A method of characterizing one or more particles in a fluid, e.g. a liquid, using interferometric scattering optical (iSCAT) microscopy. The method involves illuminating a region of a fluid using an objective lens so that light is scattered by one or more particles in the fluid. The scattered light and reference light are captured using the objective lens and interfere at an imaging device. A succession of images of the interference is processed to determine image correlation values which define a gradual decorrelation over time from which a property of the particle(s) is determined.

A method comprises obtaining input data comprising a hologram of a 3-dimensional (3D) particle field, a depth map of the 3D particle field, and a maximum phase projection of the 3D particle field. The method also comprises applying a U-net convolutional neural network (CNN) to the input data to generate output data. Encoder blocks have residual connections between a first layer and a second layer that skips over a convolution layer of the encoder block. Decoder blocks have residual connections between a first layer and a second layer that skips over a convolution layer of the decoder block. The output data includes a channel in which pixel intensity corresponds to relative depth of particles in the 3D particle field and an output image indicating locations of centroids of the particles in the 3D particle field.

A special holographic security system utilizing and centered on holographic images of homeowners or security guards to provide safety for a person's home, businesses and properties by incorporating the hologram image with the sensors, lights, cameras and other security hardware. The hologram image can be incorporated with sound, pre-recorded messages, and real time surveillance, and smart phone applications to interact with potential break-ins and security breaches. Also taught are significant ways and methods that use of holographic systems can improve homeland security as well as defense tactics to increase security and save lives. This holographic security concept can be implemented in various creative ways to preserve security in the United States and abroad.

A method and system for improving holographic image simulation and presentation is provided. The method includes receiving and analyzing audio and video data associated with historical tendencies of an opponent sporting team occurring during previous sporting contests involving the opponent sporting team. Predicted tendencies of the opponent sporting team are determined with respect to a future sporting contest scheduled with a first sporting team. In response, a holographic simulation presentation is generated. The holographic simulation presentation is associated with a predicted performance of players of the opponent sporting team with respect to the future sporting contest scheduled with the first sporting team. The holographic simulation presentation is presented such that players of the first sporting team interact with holographic images of the players of the opponent sporting team during a practice session.

A floating hologram apparatus includes a display including a first output area to output a first hologram image and a second output area to output a second hologram image and a prism array positioned in front of the display and configured to refract rays of the first hologram image and the second hologram image. The prism array includes multiple prisms of which a first facet to which a ray of the second hologram image is incident and a second facet to which a ray of the first hologram image is incident have different angles.

A floating hologram apparatus includes a display including a first output area to output a first hologram image and a second output area to output a second hologram image and a prism array positioned in front of the display and configured to refract rays of the first hologram image and the second hologram image. The prism array includes multiple prisms of which a first facet to which a ray of the second hologram image is incident and a second facet to which a ray of the first hologram image is incident have different angles.

A method and system for improving holographic image simulation and presentation is provided. The method includes receiving and analyzing audio and video data associated with historical tendencies of an opponent sporting team occurring during previous sporting contests involving the opponent sporting team. Predicted tendencies of the opponent sporting team are determined with respect to a future sporting contest scheduled with a first sporting team. In response, a holographic simulation presentation is generated. The holographic simulation presentation is associated with a predicted performance of players of the opponent sporting team with respect to the future sporting contest scheduled with the first sporting team. The holographic simulation presentation is presented such that players of the first sporting team interact with holographic images of the players of the opponent sporting team during a practice session.