Abstract: A compact, low cost vcsel projector for high performance stereodepth camera is disclosed. An example apparatus includes an array of vertical cavity surface emitting lasers (VCSELs); an array of micro-lenses coupled to the array of VCSELs, centerlines of ones of the micro-lenses offset relative to centerlines of respective ones of the VCSELs; and a projection lens coupled to the array of micro-lenses.

Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.

Abstract: Techniques related to generating holographic images are discussed. Such techniques include application of a hybrid system including a pre-trained deep neural network and a subsequent iterative process using a suitable propagation model to generate diffraction pattern image data for a target holographic image such that the diffraction pattern image data is to generate a holographic image when implemented via a holographic display.

Abstract: Techniques related to generating holographic images are discussed. Such techniques include application of a hybrid system including a pre-trained deep neural network and a subsequent iterative process using a suitable propagation model to generate diffraction pattern image data for a target holographic image such that the diffraction pattern image data is to generate a holographic image when implemented via a holographic display.

Abstract: Techniques related to generating holographic images are discussed. Such techniques include application of a hybrid system including a pre-trained deep neural network and a subsequent iterative process using a sui table propagation model to generate diffraction pattern image data for a target holographic image such that the diffraction pattern image data is to generate a holographic image when implemented via a holographic display.

Abstract: Optic pieces having multiple lens arrays are disclosed. A disclosed example optic piece for use within a projection system includes a body extending between a first side of the body and a second side of the body that is opposite the first side, the body at least partially transparent, a first array of lenses on the first side of the body, ones of the first array of lenses having a respective first surface area, and a second array of lenses on the second side of the body, ones of the second lenses having a respective second surface area that is larger than the first surface area.

Abstract: Methods and apparatus to calibrate spatial light modulators are disclosed. Examples include processor circuitry to execute and/or instantiate instructions to provide a greyscale image to a spatial light modulator (SLM) to define voltages to be applied to individual pixels of the SLM. The voltages associated with pixel values in the greyscale image. The pixel values arranged in a double-slit grating pattern. The SLM to produce an interference pattern based on the double-slit grating pattern. The processor circuitry is to determine a phase difference between first and second gratings of the double-slit grating pattern based on the interference pattern. The processor circuitry is to generate a phase curvature based on the phase difference.

Abstract: Systems, devices, and techniques related to removing infrared texture patterns used for depth sensors are discussed. Such techniques may include applying a color correction transform to raw input image data including a residual infrared texture pattern to generate output image data such that the output image data has a reduced IR texture pattern residual with respect to the raw input image data.

Abstract: A compact, low cost vcsel projector for high performance stereodepth camera is disclosed. An example apparatus includes an array of vertical cavity surface emitting lasers (VCSELs); an array of micro-lenses coupled to the array of VCSELs, centerlines of ones of the micro-lenses offset relative to centerlines of respective ones of the VCSELs; and a projection lens coupled to the array of micro-lenses.

Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.

Abstract: A VCSEL projector and method for using the same are disclosed. In one embodiment, the apparatus comprises a vertical cavity surface emitting laser (VCSEL) array comprising a plurality of VCSELs; a micro-lens array coupled to the VCSEL array and having a plurality of lenses, and each of the plurality of lenses is positioned over a VCSEL in the VCSEL array; and a projection lens coupled to the micro-lens array (MLA), where light emitted by the VCSEL array is projected as a sequence of patterns onto an object by the projection lens.

Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.

Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.

Abstract: Systems, devices, and techniques related to removing infrared texture patterns used for depth sensors are discussed. Such techniques may include applying a color correction transform to raw input image data including a residual infrared texture pattern to generate output image data such that the output image data has a reduced IR texture pattern residual with respect to the raw input image data.

Abstract: A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.

Abstract: Systems, devices, and techniques related to removing infrared texture patterns used for depth sensors are discussed. Such techniques may include applying a color correction transform to raw input image data including a residual infrared texture pattern to generate output image data such that the output image data has a reduced IR texture pattern residual with respect to the raw input image data.

Abstract: Techniques related to generating holographic images are discussed. Such techniques include application of a hybrid system including a pre-trained deep neural network and a subsequent iterative process using a sui table propagation model to generate diffraction pattern image data for a target holographic image such that the diffraction pattern image data is to generate a holographic image when implemented via a holographic display.

Abstract: Systems and methods may include a drone or multiple drones to capturing depth information, which may be used to create a stereoscopic map. The drone may capture information about two trailing drones, including a baseline distance between the two trailing drones. Additional information may be captured, such as camera angle information for one or both of the two trailing drones. The drone may receive images from the two trailing drones. The images may be used (on the drone or on another device, such as a base station) to create a stereoscopic image using the baseline distance. The stereoscopic image may include determined depth information for objects within the stereoscopic image, for example based on the baseline distance between the two trailing drones and the camera angle information.

Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.

Abstract: A radial scantier configured to image the interior of a tube includes, in an embodiment, a housing having a transparent window, a photo-sensing array, a mirror located within the housing and oriented to direct an image around a circumference of an interior surface of the tube outside the transparent window to the photo-sensing array, and a light source configured to illuminate the interior surface of the tube, wherein the photo-sensing army is configured to receive the image around the circumference, as a circular line scan. In an embodiment, the radial scanner Is deployed as an ingestible capsule. In another embodiment, the radial scanner is deployed as a fiber optic catheter.