G03H2210/62

DEEP LEARNING-ENABLED PORTABLE IMAGING FLOW CYTOMETER FOR LABEL-FREE ANALYSIS OF WATER SAMPLES

An imaging flow cytometer device includes a housing holding a multi-color illumination source configured for pulsed or continuous wave operation. A microfluidic channel is disposed in the housing and is fluidically coupled to a source of fluid containing objects that flow through the microfluidic channel. A color image sensor is disposed adjacent to the microfluidic channel and receives light from the illumination source that passes through the microfluidic channel. The image sensor captures image frames containing raw hologram images of the moving objects passing through the microfluidic channel. The image frames are subject to image processing to reconstruct phase and/or intensity images of the moving objects for each color. The reconstructed phase and/or intensity images are then input to a trained deep neural network that outputs a phase recovered image of the moving objects. The trained deep neural network may also be trained to classify object types.

Coherent Optical Holographic Imaging

A holographic imaging system may include an optical source configured to output a source beam, a splitter configured to split the source beam into a reference beam and an object beam that is incident on a target to form a scattered object beam, and a pre-filter comprising a telecentric lens and a spatial filter. The pre-filter may be configured to receive the scattered object beam and filter diffuse light from the scattered object beam to form a filtered scattered object beam. The system may also include a combiner configured to combine the filtered scattered object beam with the reference beam to form an interference beam, and an imaging array configured to receive the interference beam and generate raw holographic data based on the interference beam.

Coherent Optical Holographic Imaging

A holographic imaging system may include an optical source configured to output a source beam and a splitter configured to split the source beam into a reference beam and an object beam that may be incident on a target to form a scattered object beam. The system may also include a combiner configured to combine the filtered scattered object beam with the reference beam to form an interference beam, an imaging array configured to receive the interference beam and generate frames of raw holographic data based on measurements of the interference beam over time, and an image data processor. The image data processor may be configured to receive the frames of raw holographic data from the imaging array, remove data components within the frames that are associated with the particle motion having a motion frequency that is less than a movement frequency threshold to form conditioned raw holographic data, and generate an image based on the conditioned raw holographic data.

Measuring arrangement for in-line holography microscopy
10830687 · 2020-11-10 · ·

A measuring arrangement having an illuminating arrangement to emit coherent light; a cuvette defining an inner volume for receiving a fluid possibly comprising microscopic objects of foreign origin, the cuvette being arranged to receive the coherent light and let it exit therefrom through opposite entrance and exit openings, the entrance opening being closed by an entrance window. The possible microscopic objects present in the fluid scatter part of the light, the scattered and non-scattered light interfering to form interference fringes. An image sensor is configured to capture a hologram digital image frame by receiving the light propagated across the cuvette. An exit window is arranged to close the exit opening of the cuvette. The image sensor is mounted in direct contact with the cuvette.

Fast and Robust Fourier Domain-Based Cell Differentiation
20200340908 · 2020-10-29 ·

A differentiation system for differentiating cells includes an input device configured to receive holographic image data of a microscopic particle in suspension, holographic image data processing logic for converting the holographic image data to the frequency domain by performing a Fourier transform of the holographic image data, and a recognizer configured to determine characterization features of the holographic image data of the microscopic particle in the frequency domain for characterization of the microscopic particle, the characterization features comprising rotationally invariant features.

Holographic projection of digital objects in video content

Holographic projection of a digital object. A method includes identifying movement of a digital object in video content. The movement is along a path across a plurality of video frames of the video content. The method presents the video content on at least one display device. The presenting includes projecting a three-dimensional holographic image of the digital object adjacent to a surface of the display. The projecting traces the holographic image along the path across the plurality of video frames.

Imaging Device for In-line Holographic Imaging of an Object

Example embodiments relate to imaging devices for in-line holographic imaging of objects. One embodiment includes an imaging device for in-line holographic imaging of an object. The imaging device includes a set of light sources configured to output light in confined illumination cones. The imaging device also includes an image sensor that includes a set of light-detecting elements. The set of light sources are configured to output light such that the confined illumination cones are arranged side-by-side and illuminate a specific part of the object. The image sensor is arranged such that the light-detecting elements detect a plurality of interference patterns. Each interference pattern is formed by diffracted light from the object originating from a single light source and undiffracted light from the same single light source. At least a subset of the set of light-detecting elements is arranged to detect light relating to not more than one interference pattern.

HOLOGRAM LOCATION
20200117137 · 2020-04-16 ·

A machine is configured to perform hologram location within a scene to be generated. The machine accesses target motion data that describes movement of a target device. Based on the target motion data, the machine determines a target motion vector that indicates a target speed of the target device and indicates a target direction in which the target device is moving. The machine determines a hologram motion vector for a hologram to be generated for display by a user device. The hologram motion vector indicates a relative speed of the hologram and indicates a relative direction of movement for the hologram. The machine then causes the user device to generate a scene in which the hologram moves at a speed determined based on the target speed and on the relative speed, as well as moves in a direction determined based on the target direction and on the relative direction.

Hologram location
10545456 · 2020-01-28 · ·

A machine is configured to perform hologram location within a scene to be generated. The machine accesses target motion data that describes movement of a target device. Based on the target motion data, the machine determines a target motion vector that indicates a target speed of the target device and indicates a target direction in which the target device is moving. The machine determines a hologram motion vector for a hologram to be generated for display by a user device. The hologram motion vector indicates a relative speed of the hologram and indicates a relative direction of movement for the hologram. The machine then causes the user device to generate a scene in which the hologram moves at a speed determined based on the target speed and on the relative speed, as well as moves in a direction determined based on the target direction and on the relative direction.

Device for generating at least one hologram
20200012233 · 2020-01-09 ·

The present invention relates to a method for generating at least one hologram, in particular for hologram-like presentation of game participants, comprising at least one hologram projection device for generating at least one hologram, as well as at least one storage medium on which at least one previously played football game and/or another playing field game is at least partially stored, and also at least one playback element which is in data communication with the storage medium and which supplies the hologram projection device with data to be projected. In this case the data comprise at least one data packet containing data of the previously played football game and/or the other playing field game, and these data comprising data of a location and/or a time and/or a physical condition of at least one game participant as a function of a playing time during a game are formed. Thus, these data can be reproduced by the hologram projection device, in particular in real time, in order to reproduce the football game and/or the playing field game by means of the hologram.