Abstract: The present disclosure relates to systems, methods, and non-transitory computer-readable media that modify digital images via multi-layered scene completion techniques facilitated by artificial intelligence. For instance, in some embodiments, the disclosed systems receive a digital image portraying a first object and a second object against a background, where the first object occludes a portion of the second object. Additionally, the disclosed systems pre-process the digital image to generate a first content fill for the portion of the second object occluded by the first object and a second content fill for a portion of the background occluded by the second object. After pre-processing, the disclosed systems detect one or more user interactions to move or delete the first object from the digital image. The disclosed systems further modify the digital image by moving or deleting the first object and exposing the first content fill for the portion of the second object.

Abstract: An electronic device comprising circuitry, the circuitry comprising a mix driver (MVD) for providing a modulation In signal to pixels of a time of flight pixel chip (P500), and at least one Save and Share current circuitry (51, S2) connected to the mix driver (MVD), wherein the Save and Share circuitry (S1, S2) is configured to save charge provided by a power supply (VDD) in a capacitor (CS1, CS2) and to share the saved charge to the pixels of the time of flight pixel chip (P500). A logic chip (L500) comprises an input (l_in) and a buffer block (CLT500), where a modulation signal (GDA) is supplied to the input (1_in) and is delivered to the pixel chip (P500) via the buffer block (CLT500). Capacitors (CS1, CS2) help the mix driver (MVD) with the charging and discharging, respectively, of the pixel units in the pixel chip (P500). Frequencies used for the modulation signal (GDA) may be in the range of several tens of MHz to several hundreds of MHz.

Abstract: Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 1 g/10 min, a density from 0.93 to 0.965 g/cm3, a CY-a parameter at 190° C. of less than 0.2, an average number of short chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 40,000 to 60,000 g/mol, and an average number of long chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 4,000,000 to 6,000,000 g/mol.

Abstract: A time-of-flight apparatus having a light detector for detecting light reflected from a scene, wherein the light detector has at least one light detection element; and circuitry configured to acquire light detection events for the at least one light detection element at selected points of time of a set of predetermined number of consecutive times, wherein the selection of the points of time is based on a time compressive sampling.

Abstract: An electronic device comprising circuitry configured to drive a unit pixel for a time of flight camera according to a multi-level mixing clock scheme.

Abstract: An electronic device comprising a clock-gated latch between two routing wires which transport a demodulation signal from a demodulation driver to pixels of a pixel column of a pixel array.

Abstract: Embodiments of the present disclosure include a harmonic power amplifying circuit with high efficiency and high bandwidth and a radio-frequency power amplifier. The circuit comprises an input matching network (11), a transistor (M), and an output matching network (12); a gate of the transistor (M) connected to an output end of the input matching network (11), a drain thereof connected to an input end of the output matching network (12), and a source thereof being grounded; wherein the output matching network (12) enables a lower sideband of the harmonic power amplifying circuit to work in a continuous inverse F amplification mode and an upper sideband of the harmonic power amplifying circuit to work in a continuous F amplification mode; wherein the output matching network (12) and a parasitic network of the transistor (M) form a low pass filter.

Abstract: An electronic device comprising circuity configured to integrate charge collected by at least two floating diffusions on at least one capacitor and to change the direction of charge integration from a first current flow direction to a second current flow direction between a first integration phase and a second integration phase.

Abstract: This application provides a frequency scaling method. The method includes: predicting an energy efficiency parameter for processing a current frame of an image by at least one module; and selecting, from a plurality of frequency sets based on the predicted energy efficiency parameter, a first frequency set that meets an energy efficiency requirement, and scaling a working frequency of each of the at least one module for processing the current frame to a preset frequency corresponding to each of the at least one module. According to the technical solutions provided in the embodiments of this application, a load change requirement can be responded to in time in a frequency scaling process.

Abstract: The invention belongs to the technical field of OCT and provides an OCT image processing device and system. An FPGA is in communication connection with an upper computer via a PCIE interface to receive OCT image data acquired by the upper computer and to carry out image preprocessing on the OCT image data and then send the OCT image data to the upper computer to display. The OCT image data is acquired and displayed by the upper computer and the OCT image data's preprocessing is implemented by the FPGA, so that the processing efficiency of the OCT image data is greatly improved.

Abstract: A millimeter wave security inspection instrument debugging system and a millimeter wave security inspection instrument debugging method, which are used for debugging the imaging definition of a millimeter wave holographic imaging security inspection system. A main control apparatus is used for generating a millimeter wave detection signal and a reference signal. The main control apparatus is also used for, where a millimeter wave transmitting antenna, a millimeter wave receiving antenna and a detected object are respectively located at different relative positions, transmitting the millimeter wave detection signal to the detected object by means of the millimeter wave transmitting antenna, and receiving an echo signal reflected from the detected object by means of the millimeter wave receiving antenna, and then using a holographic image technique to perform three-dimensional imaging according to the reference signal and the echo signal.

Abstract: A time-of-flight apparatus has a light source for emitting a light pulse to a scene; a photo-detection portion for detecting at least the light pulse reflected from the scene within a first photo-detection time interval, wherein the photo-detection portion includes at least one photo-detection element; and a measurement circuitry configured to: drive, within a measurement time interval including the first photo-detection time interval, the at least one photo-detection element for detecting the light pulse reflected from the scene, and drain, within the measurement time interval and after the first photo-detection time interval, electrons from the at least one photo-detection element.

Abstract: A time-of-flight device has a light source configured to emit light pulses to a scene, a light detector configured to detect light reflected from the scene and a control, the control being configured to drive the light source to emit pulse density modulated light pulses representing a predefined light waveform, drive the light detector to detect the pulse density modulated light pulses, based on a demodulation time interval and reconstruct the predefined light waveform, based on the detected density modulated light pulses.

Abstract: This invention provides millimeter wave holographic 3D imaging detection system, which comprises: a transmitting antenna configured to transmit a millimeter wave transmitting signal to an object to be detected; a receiving antenna configured to receive an echo signal from the object to be detected; a millimeter wave transceiving module configured to generate the millimeter wave transmitting signal transmitted to the object to be detected and receive and process the echo signal from the receiving antenna; a scanning device configured to support the millimeter wave transceiving module, the transmitting antenna and the receiving antenna, and move the millimeter transceiving module, the transmitting antenna and the receiving antenna along a preset track, so as to scan the object to be detected with millimeter waves; a data gathering and processing module configured to gather and process the echo signal output from the millimeter wave transceiving module to generate a 3D image of the object to be detected; and an

Abstract: A terahertz metamaterial waveguide and device are provided. The terahertz metamaterial waveguide comprises a subwavelength substrate layer and a metal layer. One surface of the subwavelength substrate layer is plated with the metal layer, and a plurality of periodically-distributed micropores is formed in the metal layer. The subwavelength substrate layer, the metal layer, and the formed plurality of periodically-distributed micropores are described.

Abstract: A human body gender automatic recognition method includes: acquiring a current millimeter wave grayscale image, and determining gender part region positions of a human body in the millimeter wave grayscale image according to a pre-set body proportion; extracting a region sub-image corresponding to the gender part region position; performing dimension normalization on the region sub-image to obtain a normalized region sub-image; performing feature information extraction on the normalized region sub-image to obtain feature information about the normalized region sub-image; recognizing the millimeter wave grayscale image by means of each pre-set classifier, and respectively outputting results; and integrating the output results to obtain a classification recognition result of the millimeter wave grayscale image. The method has relatively high recognition rate and calculation efficiency and solves the problem of a privacy protection and detection method in a millimeter wave security inspection system.

Abstract: A device includes an optic in an at least partially rigid scaffold. The scaffold is permeated, at least temporarily during a writing process, by writable media. The optic may be written into a writable volume in the scaffold defined by the writable media. The optic may be written by exposing the writable media to incident light to cause a material property change in the writable media within the writable volume.

Abstract: A charge pump circuit and phase-locked loop include start, bias, current mirror, charging and discharging feedback control, and charging and discharging matching modules, which are electrically connected in sequence. The start module starts the bias module. The bias module generates constant bias current and outputs same to the current mirror module, which receives and amplifies the bias current for output in two paths. The charging and discharging feedback control module detects the output voltage of a charge pump and controls, according to feedback of the output voltage, the current in the charging and discharging matching module, to suppress the mismatch between charging and discharging currents. The charging and discharging matching module receives an external charging or discharging control signal, to charge or discharge the output load of the charge pump. Charging and discharging currents can be matched within a wide output voltage range, without an operational amplifier.

Abstract: The invention relates to a terahertz full polarization state detection spectrometer, which comprises a terahertz wave generator, a polarizer, a polarization splitter, a horizontal terahertz detector and a vertical terahertz detector. The terahertz wave generator generates a terahertz wave and the polarizer optimizes the terahertz wave for purity. The sample to be detected modulates the terahertz wave after purity optimization to obtain the terahertz modulated wave. The terahertz modulated wave is decomposed by the polarization splitter into a horizontal terahertz wave and a vertical terahertz wave whose polarization states are perpendicular to each other. The two terahertz waves are detected by two corresponding terahertz detectors respectively. According to the detected result, the characteristic of the sample is analyzed.

Abstract: This invention provides a security check apparatus for multiple human bodies based on linear frequency modulation, which comprises a scanning device, a millimeter wave signal transceiver module, and an image processing unit. The scanning device comprises several detection seats and several guideways and motors arranged on the detection seats; the detection seats are configured to accommodate persons to be security checked; a set of the millimeter wave signal transceiver modules are arranged on each guideway, and each millimeter wave signal transceiver module is driven by the motor to move along the guideway; the several detection seats are arranged in longitudinal direction. The millimeter wave signal transceiver modules are configured to transmit millimeter wave signals to the persons to be security checked and receive millimeter wave signals reflected from the persons to be security checked.