Abstract: A structured-light three-dimensional (3D) scanning system includes a projector that emits a projected light with a predetermined pattern onto an object; an image capture device that generates a captured image according to a reflected light reflected from the object, the predetermined pattern of the projected light being distorted due to 3D shape of the object, thereby resulting in a distorted pattern; a depth decoder that converts the distorted pattern into a depth map representing the 3D shape of the object; and a depth fusion device that generates a fused depth map according to at least two different depth maps associated with the object.

Abstract: Aspects of the disclosure relate to wireless communication apparatuses, methods, and other aspects of sliding intermediate frequency filters for carrier aggregation communications. One aspect a high band mixer including a radio frequency (RF) receive signal input, a local oscillator (LO) input, and an IF signal output, a tunable high pass filter including an input and an output, an intermediate frequency (IF) received signal multiplexer including a merged IF CA signal output, a first input, and a second input, an LO input, and an IF signal output, where the RF receive signal input is coupled to the low band mmW CA receive port, and a tunable low pass filter including an input and an output, where the input is coupled to the IF signal output of the low band mixer, and where the output is coupled to the second input of the IF received signal multiplexer.

Abstract: Aspects described herein include devices and methods with chain routing of signals for massive antenna arrays. In some aspects, an apparatus is provided that includes a first millimeter wave (mmW) transceiver having a first port, a second port, one or more antenna elements, a plurality of chain mmW transceiver ports, and switching circuitry. The switching circuitry is controllable by control data to route portions of a merged clock and data signal and a merged control and data signal between a first route between the one or more antenna elements and the first port and a second route between the one or more antenna elements and the second port and a third route between the first port and the plurality of chain mmW transceiver ports and a fourth route between the second port and the plurality of chain mmW transceiver ports.

Abstract: The device includes a projecting device, an image sensor and a computing circuit. The projecting device provides a light beam having a predetermined pattern that is projected onto an object. The image sensor receives the light beam reflected from the object to generate an image. The computing circuit compares the image with a first ground-truth image and a ground-truth image to generate a first depth value and a second depth value respectively. The first and second depth values are combined to generate a depth result.

Abstract: A voice coil motor held immobile by magnetic attraction when not in use for photography purposes includes a base, a magnet fixed thereto, a carrier, a magnetic member, and a coil. The magnetic member is fixed to the carrier and is attracted by a permanent magnetic field (first MF) of the magnet on the base. The coil is fixed to the carrier and the magnetic member. When the voice coil motor is powered on, the coil generates a second magnetic field (second MF) opposing the first MF. The second MF reduces or eliminates the attractive force of the first MF of the magnet, to separate the carrier and its fittings and allow them to work freely. A lens module and an electronic device are further provided.

Abstract: A depth sensing apparatus includes an image sensor, a depth decoder and a depth fusion processor. The mage sensor captures raw images from a scene with different exposure configurations. The depth decoder decodes each raw image into depth values, each raw image having pixels respectively corresponding to the depth values. The depth fusion processor sets one of the raw images and the rest of at least one raw image as a base image and at least one reference image, respectively, and substitutes invalid depth values of the depth values corresponding to the base image with valid depth values corresponding to the at least one reference image to generate a depth map of the scene. The invalid depth values corresponding to the base image and the valid depth values corresponding to the at least one reference image map to the same pixels of the raw images.

Abstract: A system for calibrating a three-dimensional scanning device includes a structured-light scanner capable of performing a structured-light operation, and a processor that performs calibration on a device under calibration (DUC). The structured-light scanner captures a base image by performing the structured-light operation prior to calibration. The structured-light scanner captures a calibration image with respect to corresponding DUC during calibration, and the calibration image is inputted to the processor, which determines transformation mapping from the calibration image to the base image. The determined transformation is then transferred to the DUC during calibration.

Abstract: A depth processor including a region of interest determination circuit and a depth decoder is provided. The region of interest determination circuit is configured to determine a size of a region of interest of an input image. The depth decoder is coupled to the region of interest determination circuit and configured to generate a depth map of the input image according to a filter size. The filter size is set according to the size of the region of interest of the input image.

Abstract: An example method to control a light source in structured light imaging associated with a target includes obtaining two-dimensional image information and depth information of an image including the target and a scene, associating the depth information with pixels of the image, selecting a first set of pixels of the pixels based on a first set of the depth information and a second set of pixels of the pixels based on a second set of the depth information, calculating a first average pixel luminance (APL) of the first set of pixels and a total APL of the first and the second sets of pixels, obtaining a weighted APL based on the first APL and the total APL and controlling the light source based on the weighted APL.

Abstract: A three-dimensional (3D) sensing device is configured to sense an object. The 3D sensing device includes a flood light source, a structured light source, an image sensor, and a controller. The controller is configured to perform: commanding the flood light source and the structured light source to emit a flood light and a structured light in sequence; commanding the image sensor to sense a first reflective light and a second reflective light in sequence, so as to obtain a first image frame and a second image frame; combining the first image frame and the second image frame into a determination frame; and determining that the object is a specular reflection object in response to determining that the determination frame has at least two spots having gray levels satisfying a predetermined condition. A specular reflection object detection method is also provided.

Abstract: A three-dimensional (3D) sensing system for determining a 3D profile of an object and a method are provided. The 3D sensing system includes a first light source, a liquid crystal lens, a light detector and a control circuit. The first light source is configured to emit polarized light with a polarization setting for projecting a structured light pattern on the object. The liquid crystal lens in a polarization state allows incident light with the polarization setting to pass through and block incident light without the polarization setting from passing through. The light detector is configured to detect light reflected from the object and passing through the liquid crystal lens. When the 3D sensing system is in a 3D mode, the control circuit is configured to turn on the first light source and control the liquid crystal lens to enter the polarization state.

Abstract: An example method to render an image includes obtaining two-dimensional image information of the image including a target and a scene and depth information associated with a first set of pixels and a second set of pixels of the image. The first set of pixels correspond to the target and the second set of pixels correspond to the scene. In response to depth information associated with a pixel of the image being in the predetermined range, the example method includes associating a first depth index with the pixel. Otherwise, the example method associates a second depth index with the pixel. The example method further includes calculating a weighted average picture level of the image based on grayscale values of pixels of the image, the first depth index and/or the second depth index and rendering the image based on the weighted average picture level.

Abstract: A system for calibrating a three-dimensional scanning device includes a structured-light scanner capable of performing a structured-light operation, and a processor that performs calibration on a device under calibration (DUC). The structured-light scanner captures a base image by performing the structured-light operation prior to calibration. The structured-light scanner captures a calibration image with respect to corresponding DUC during calibration, and the calibration image is inputted to the processor, which determines transformation mapping from the calibration image to the base image. The determined transformation is then transferred to the DUC during calibration.

Abstract: An object detection system includes a projector that projects an original transmitted light on a scene containing an object; an adjustable device configured to shape the original transmitted light, thereby generating a shaped transmitted light; and an image capture device configured to capture an image from a reflected light from the scene. The original transmitted light is alternated with the shaped transmitted light, thereby resulting in an integrated image captured by the image capture device.

Abstract: A method for performing region-of-interest (ROI)-based depth detection with aid of a pattern-adjustable projector and associated apparatus are provided.

Abstract: A method for performing region-of-interest (ROI)-based depth detection with aid of a pattern-adjustable projector and associated apparatus are provided.

Abstract: A three-dimensional (3D) sensing system for determining a 3D profile of an object and a method are provided. The 3D sensing system includes a first light source, a liquid crystal lens, a light detector and a control circuit. The first light source is configured to emit polarized light with a polarization setting for projecting a structured light pattern on the object. The liquid crystal lens in a polarization state allows incident light with the polarization setting to pass through and block incident light without the polarization setting from passing through. The light detector is configured to detect light reflected from the object and passing through the liquid crystal lens. When the 3D sensing system is in a 3D mode, the control circuit is configured to turn on the first light source and control the liquid crystal lens to enter the polarization state.

Abstract: A method for performing hybrid depth detection with aid of an adaptive projector and associated apparatus are provided. The method includes: utilizing an image processing circuit to obtain distance information; utilizing the image processing circuit to determine a distance range according to the distance information; utilizing the image processing circuit to perform projection type selection to determine at least one selected projection type corresponding to the distance range among multiple predetermined projection types; utilizing the adaptive projector to perform projection of the at least one selected projection type to capture at least one corresponding image with a camera, and utilizing the image processing circuit to perform depth detection according to corresponding image to generate depth map; and utilizing the image processing circuit to selectively output the depth map as resultant depth map or perform depth data combination to generate combined depth map as resultant depth map.

Abstract: A three-dimensional (3D) sensing system for determining a 3D profile of an object and a method are provided. The 3D sensing system includes a liquid crystal lens, a structure light source and a control circuit. The structure light source is configured to emit a structure light pattern with a plurality of dots on the object through the liquid crystal lens. The control circuit is configured to control the liquid crystal lens to separate the plurality of dots under a separating mode, and the control circuit is configured to control the liquid crystal lens to overlap the plurality of dots under an overlapping mode.

Abstract: A depth processor including a region of interest determination circuit and a depth decoder is provided. The region of interest determination circuit is configured to determine a size of a region of interest of an input image. The depth decoder is coupled to the region of interest determination circuit and configured to generate a depth map of the input image according to a filter size. The filter size is set according to the size of the region of interest of the input image.