Abstract: A microscopy system includes a primary lens and a planar array of micro-cameras. Each micro-camera of the planar array of micro-cameras has a field of view at an intermediate plane that overlaps at least one other micro-camera's field of view at the intermediate plane in a direction. The primary lens is disposed in a light path between the array of micro-cameras and a target area. In some cases, an overlap amount in the direction of the field of view at the intermediate plane for each micro-camera is at least 50%. A method of microscopy imaging includes directing light to a target area and simultaneously capturing a first set of images of the target area while the light illuminates the target area via a planar array of micro-cameras having a field of view at an intermediate plane disposed between a primary lens and the planar array of micro-cameras.

Abstract: A system and method to verify the authenticity of a physical object, based on the efficient acquisition and digital post-processing of a large amount of optical data. An optical system, comprised of an array of microscope-type “micro-cameras” and a patterned illumination source, acquires spatial, spectral and angular information about the physical object in the form of micro-camera images. The set of all acquired images comprise one object dataset, which a post-processing system then digitally transforms into a multi-gigabyte set of semi-random keys. Authentication takes place at a later date following a challenge-and-response protocol. The high resolution (<15 ?m) of the acquired data presents a significant challenge to attempted duplication of the physical object, and the large size (>1 Gigabyte) of the key set similarly prevents both physical and digital forgery attempts.

Abstract: A Fourier ptychography system includes a polarization-sensitive camera positioned for capturing a sequence of polarized images of a sample, an objective lens positioned in a light path between the polarization-sensitive camera and the sample, an array of light sources for directing light to the sample and a generator polarizer positioned between the array of light sources and the sample to polarize light directed to the sample from the array of light sources. A method of creating a tomographic Fourier ptychography image includes receiving, from a polarization-sensitive camera, a sequence of polarized images of a sample, stitching each image of the sequence of images together using a non-linear Fourier transform function to create a composite image, and outputting the composite image as the tomographic Fourier ptychography image. Each polarized image of the sequence of polarized images overlaps another polarized image of the sequence of polarized images.

Abstract: An optical measurement system comprising an optical source configured for delivering sample light in an anatomical structure, such that the sample light is scattered by the anatomical structure, resulting in physiological-encoded signal light that exits the anatomical structure, an optical detector configured for detecting the physiological-encoded signal light, and a processor configured for acquiring a TOF profile derived from the physiological-encoded signal light, the initial TOF profile having an initial contrast-to-noise ratio (CNR) between a plurality of states of a physiological activity in the anatomical structure. The processor is further configured for applying one or more weighting functions to the initial TOF profile to generate a weighted TOF profile having a subsequent CNR greater than the initial CNR between the plurality of states of the physiological activity.

Abstract: An arrangement of one or more micro cameras are used in conjunction with computer controlled illumination to create a high-throughput microscope able to operate without the need of expensive scanning stages. A single unit contains a plurality of sensors, lenses tiled in such a way to cover a significant fraction of the desired field of view in a digital single acquisition. Mechanical stages and patterned illumination can then be used in conjunction with the system to enhanced the imaged depth of field, or create an acquisition stack to enhance the information acquired. Multiple units can be combined to obtain images of a single sample from different angles. The absence of mechanical stages makes the imaging system ideal for use in scenarios that require the sample to be in a climate and/or environmentally controlled chamber.

Abstract: A method for altering the intensity of light across the field of view of an image sensor in a microscope apparatus having a light source, an image sensor having pixels, and a specimen stage, wherein light from the light source travels along a light path to the specimen stage and then to the image sensor includes interposing a programmable spatial light modulator, pSLM, in the light path between the light source and the image sensor, the pSLM having a plurality of pixels; and modulating the intensity of light passing through one or more pixels of the plurality of pixels of the pSLM to produce an altered illumination landscape at the field of view of the image sensor that differs from an unaltered illumination landscape that would otherwise be produced at the image sensor. Vignetting can be specifically addressed.

Abstract: An arrangement of one or more micro cameras are used in conjunction with computer controlled illumination to create a high-throughput microscope able to operate without the need of expensive scanning stages. A single unit contains a plurality of sensors, lenses tiled in such a way to cover a significant fraction of the desired field of view in a digital single acquisition. Mechanical stages and patterned illumination can then be used in conjunction with the system to enhanced the imaged depth of field, or create an acquisition stack to enhance the information acquired. Multiple units can be combined to obtain images of a single sample from different angles. The absence of mechanical stages makes the imaging system ideal for use in scenarios that require the sample to be in a climate and/or environmentally controlled chamber.

Abstract: An optical measurement system comprising an optical source configured for delivering sample light in an anatomical structure, such that the sample light is scattered by the anatomical structure, resulting in physiological-encoded signal light that exits the anatomical structure, an optical detector configured for detecting the physiological-encoded signal light, and a processor configured for acquiring a TOF profile derived from the physiological-encoded signal light, the initial TOF profile having an initial contrast-to-noise ratio (CNR) between a plurality of states of a physiological activity in the anatomical structure. The processor is further configured for applying one or more weighting functions to the initial TOF profile to generate a weighted TOF profile having a subsequent CNR greater than the initial CNR between the plurality of states of the physiological activity.

Abstract: A tomographic 3D imaging system includes a conic-section mirror serving as the imaging objective, a sample holder positioned to hold a sample at a focus (fp) of the conic-section mirror, a light source directing light to the sample, and an array of camera sensors positioned above the conic-section mirror. In some cases, the array of camera sensors is positioned parallel to a directrix of the conic-section mirror. In some cases, the conic-section mirror is a parabolic mirror. In some cases, each camera sensor of the array of camera sensors is positioned facing the sample holder at an inclination angle dictated by a lateral position of the camera sensor according to ?(r)=2 tan?1(r/2fp), where r is the radial entry position across the parabolic mirror.

Abstract: A microscopy system includes a planar array of micro-cameras with at least three micro-cameras of the planar array of micro-cameras each capturing a unique angular distribution of light reflected from a corresponding portion of a target area. The corresponding portions of the target area for the at least three micro-cameras contain an overlapping area of the target area. The microscopy system further includes a primary lens disposed in a path of the light between the planar array of micro-cameras and the target area. This microscopy system is capable of producing 3D imaging and/or video imaging of the target area. In some cases, the microscopy system is configured to generate a 3D image from the captured unique angular distribution of light reflected from the corresponding portions of the target area of the at least three micro-cameras of the planar array of micro-cameras.

Abstract: A microscopy system includes a lens, an image sensor, a planar array of light sources, and a first and second polarizing filter. The lens is disposed between the array and the image sensor. The image sensor has a field of view and is positioned to capture an image of a sample in a target area. Each light source provides light from a different direction to the target area. The first polarizing filter and the second polarizing filter are each positioned at a rotation angle. A method of microscopy imaging includes illuminating a sample positioned in a target area of a lens with a light source from an array of light sources, acquiring a set of images by an image sensor of the illuminated sample, and performing a reconstruction algorithm on the set of images to generate a composite high-resolution image over the field of view of the image sensor.

Abstract: An array of more than one digital micro-camera, along with the use of patterned illumination and a digital post-processing operation, jointly create a multi-camera patterned illumination (MCPI) microscope. Each micro-camera includes its own unique lens system and detector. The field-over-view of each micro-camera unit at least partially overlaps with the field-of-view of one or more other micro-camera units within the array. The entire field-of-view of a sample of interest is imaged by the entire array of micro-cameras in a single snapshot. In addition, the MCPI system uses patterned optical illumination to improve its effective resolution. The MCPI system captures one or more images as the patterned optical illumination changes its distribution across space and/or angle at the sample. Then, the MCPI system digitally combines the acquired image sequence using a unique post-processing algorithm.

Abstract: An optical source sweeps a source light over an optical wavelength range. An interferometer splits the source light into sample light and reference light, delivers the sample light into an anatomical structure, such that the sample light is scattered by the anatomical structure, resulting in physiological-encoded signal light that exits the anatomical structure, and combines the signal light and the reference light into an interference light pattern having an array of spatial components and a plurality of oscillation frequency components. An optical detector array detects intensity values of the array of spatial components.

Abstract: An array of more than one digital micro-camera, along with the use of patterned illumination and a digital post-processing operation, jointly create a multi-camera patterned illumination (MCPI) microscope. Each micro-camera includes its own unique lens system and detector. The field-over-view of each micro-camera unit at least partially overlaps with the field-of-view of one or more other micro-camera units within the array. The entire field-of-view of a sample of interest is imaged by the entire array of micro-cameras in a single snapshot. In addition, the MCPI system uses patterned optical illumination to improve its effective resolution. The MCPI system captures one or more images as the patterned optical illumination changes its distribution across space and/or angle at the sample. Then, the MCPI system digitally combines the acquired image sequence using a unique post-processing algorithm.

Abstract: A non-invasive optical measurement system comprises a two-dimensional array of photonic integrated circuits (PICs) mechanically coupled to each other. Each PIC is configured for emitting sample light into an anatomical structure, such that the sample light is scattered by the anatomical structure, resulting in physiological-encoded signal light that exits the anatomical structure. Each PIC is further configured for detecting the signal light. The non-invasive optical measurement system further comprises processing circuitry configured for analyzing the detected signal light from each of the PICs, and based on this analysis, determining an occurrence and a three-dimensional spatial location of the physiological event in the anatomical structure.

Abstract: The present disclosure describes a computational imaging system that uses a supervised learning algorithm to jointly process the captured image data to identify task-optimal hardware settings and then uses the task-optimal hardware settings to dynamically adjust its hardware to improve specific performance. The primary application of this device is for rapid and accurate automatic analysis of images of biological specimens.

Abstract: A microscopy system includes a primary lens and a planar array of micro-cameras. Each micro-camera of the planar array of micro-cameras has a field of view at an intermediate plane that overlaps at least one other micro-camera's field of view at the intermediate plane in a direction. The primary lens is disposed in a light path between the array of micro-cameras and a target area. In some cases, an overlap amount in the direction of the field of view at the intermediate plane for each micro-camera is at least 50%. A method of microscopy imaging includes directing light to a target area and simultaneously capturing a first set of images of the target area while the light illuminates the target area via a planar array of micro-cameras having a field of view at an intermediate plane disposed between a primary lens and the planar array of micro-cameras.

Abstract: An optical measurement system comprising an optical source configured for delivering sample light in an anatomical structure, such that the sample light is scattered by the anatomical structure, resulting in physiological-encoded signal light that exits the anatomical structure, an optical detector configured for detecting the physiological-encoded signal light, and a processor configured for acquiring a TOF profile derived from the physiological-encoded signal light, the initial TOF profile having an initial contrast-to-noise ratio (CNR) between a plurality of states of a physiological activity in the anatomical structure. The processor is further configured for applying one or more weighting functions to the initial TOF profile to generate a weighted TOF profile having a subsequent CNR greater than the initial CNR between the plurality of states of the physiological activity.

Abstract: A method of mesoscopic photogrammetry can be carried out using a set of images captured from a camera on a mobile computing device. Upon receiving the set of images, the method generates a composite image, which can include applying homographic rectification to warp all images of the set of images onto a common plane; applying a rectification model to undo perspective distortion in each image of the set of images; and applying an undistortion model for adjusting for camera imperfections of a camera that captured each image of the set of images. A height map is generated co-registered with the composite image, for example, by using an untrained CNN whose weights/parameters are optimized in order to optimize the height map. The height map and the composite image can be output for display.

Abstract: An arrangement of one or more micro cameras are used in conjunction with computer controlled illumination to create a high-throughput microscope able to operate without the need of expensive scanning stages. A single unit contains a plurality of sensors, lenses tiled in such a way to cover a significant fraction of the desired field of view in a digital single acquisition. Mechanical stages and patterned illumination can then be used in conjunction with the system to enhanced the imaged depth of field, or create an acquisition stack to enhance the information acquired. Multiple units can be combined to obtain images of a single sample from different angles. The absence of mechanical stages makes the imaging system ideal for use in scenarios that require the sample to be in a climate and/or environmentally controlled chamber.