Abstract: An optical phased array is provided, including: a silicon substrate; a silicon oxide layer; an optical waveguide layer including a coupling beam splitter and a grating antenna; a silicon oxide cladding layer, disposed around the optical waveguide layer and filled in the band-shaped gap; and one or more lithium niobate phase shifters; each lithium niobate phase shifter includes: a lithium niobate thin film located in the band-shaped gap, a lithium niobate optical waveguide disposed over the lithium niobate thin film and connected to the coupling beam splitter and the grating antenna, modulation electrodes. The present disclosure uses materials with high electro-optical coefficient and low loss, such as lithium niobate, to replace thermal modulation resistors and the phase modulation mode based on carrier injection used in optical phased arrays, so that the optical phase modulation with low power consumption, high speed and low waveguide loss can be performed.

Abstract: A method and apparatus for processing character image data are provided. A specific embodiment of the method can include: acquiring a video including character images of a first character as first data, and acquiring a video including character images of a second character as second data, the video including character images of the first character including a plurality of types of movement-state images; replacing a head image extracted from the first data with a head image extracted from the second data; replacing a face extracted from the first data with a face extracted from the second data; and replacing the face in the replaced head image with the replaced face to obtain a target head image.

Abstract: A silicon photonic chip-based LiDAR, comprising a silicon photonic chip (2), a laser module, a beam collimator module (4), and a signal processing module (6), where the laser outputs a frequency modulated continuous laser and transmits the frequency modulated continuous laser to the silicon photonic chip (2), where the laser is split and transmitted in the silicon photonic chip (2) to form a reference interference light and a local oscillation light on the one hand, and the split laser is transmitted to the target (5) via the beam collimator module (4), and then the reflect light of the reference interference light is received to interfere with the local oscillation light to form a measurement interference light on the other hand; and the reference interference light and the measurement interference light are photoelectrically detected in the silicon photonic chip (2) and form an electrical signal being output to the signal processing module (6) to obtain the distance and speed of the target.

Abstract: The application provides a virtual object image display method and apparatus, an electronic device and a storage medium, relates to the field of artificial intelligence, in particular to the field of computer vision and deep learning, and may be applied to virtual object dialogue scenarios. The specific implementation scheme includes: segmenting acquired voice to obtain voice segments; predicting lip shape sequence information for the voice segments; searching for a corresponding lip shape image sequence based on the lip shape sequence information; performing lip fusion between the lip shape image sequence and a virtual object baseplate to obtain a virtual object image; displaying the virtual object image. The application improves ability to obtain virtual object image.

Abstract: A method and apparatus for processing character image data are provided. A specific embodiment of the method can include: acquiring a video including character images of a first character as first data, and acquiring a video including character images of a second character as second data, the video including character images of the first character including a plurality of types of movement-state images; replacing a head image extracted from the first data with a head image extracted from the second data; replacing a face extracted from the first data with a face extracted from the second data; and replacing the face in the replaced head image with the replaced face to obtain a target head image.

Abstract: The application provides a virtual object image display method and apparatus, an electronic device and a storage medium, relates to the field of artificial intelligence, in particular to the field of computer vision and deep learning, and may be applied to virtual object dialogue scenarios. The specific implementation scheme includes: segmenting acquired voice to obtain voice segments; predicting lip shape sequence information for the voice segments; searching for a corresponding lip shape image sequence based on the lip shape sequence information; performing lip fusion between the lip shape image sequence and a virtual object baseplate to obtain a virtual object image; displaying the virtual object image. The application improves ability to obtain virtual object image.

Abstract: This application discloses a method and a device for dialogue with a virtual object, a client end and a storage medium. A specific implementation scheme of the method applied to the client end includes: converting a first voice collected by the client end into a first text content, in a case that the client end is in an offline mode; acquiring a second text content responding to the first text content based on offline natural language processing (NLP) and/or a target database pre-stored by the client end; performing voice synthesis on the second text content to acquire a second voice; simulating a lip shape of the second voice by using the virtual object to acquire a target video in which the virtual object says the second voice; and playing the target video.

Abstract: A display panel includes a first display sub-panel and a second display sub-panel disposed opposite to each other, the first display sub-panel including a plurality of first gate lines and the second display sub-panel including a plurality of second gate lines. The display panel further includes a plurality of single-way conducting switches, the first gate lines, the second gate lines and the single-way conducting switches being disposed in one-to-one correspondence, each of the single-way conducting switches having an input end which is electrically connected to the corresponding first gate line and an output end which is electrically connected to the corresponding second gate line, and each of the single-way conducting switches being unidirectionaly conducted from the corresponding first gate line to the corresponding second gate line.

Abstract: The present disclosure relates to a circuit for regulating power supplying, a method for regulating power supplying and a test system. The circuit for regulating power supplying includes a switch circuit connected to a first power terminal and an output terminal. The switch circuit is configured to control whether a power supply is turned on or off. The circuit includes a turn-off rate control circuit connected to the first power terminal, a second power terminal and the switch circuit. The turn-off rate control circuit is configured to control a turn-off rate of the switch circuit.

Abstract: A display panel includes a first display sub-panel and a second display sub-panel disposed opposite to each other, the first display sub-panel including a plurality of first gate lines and the second display sub-panel including a plurality of second gate lines. The display panel further includes a plurality of single-way conducting switches, the first gate lines, the second gate lines and the single-way conducting switches being disposed in one-to-one correspondence, each of the single-way conducting switches having an input end which is electrically connected to the corresponding first gate line and an output end which is electrically connected to the corresponding second gate line, and each of the single-way conducting switches being unidirectionaly conducted from the corresponding first gate line to the corresponding second gate line.

Abstract: The present disclosure relates to a circuit for regulating power supplying, a method for regulating power supplying and a test system. The circuit for regulating power supplying includes a switch circuit connected to a first power terminal and an output terminal. The switch circuit is configured to control whether a power supply is turned on or off. The circuit includes a turn-off rate control circuit connected to the first power terminal, a second power terminal and the switch circuit, The turn-off rate control circuit is configured to control a turn-off rate of the switch circuit.