Abstract: An encoding method includes obtaining probe data, where the probe data corresponds to one or more probes in a three-dimensional (3D) scene, and the probe data is used by a second device to determine shading effect of an object in the 3D scene in a rendering process; performing data form conversion on the probe data to obtain intermediate data, where the data form conversion includes domain conversion; and encoding the intermediate data to obtain a corresponding bitstream.

Abstract: Embodiments of this application provide a decoding method and an electronic device. The method includes: obtaining a bitstream that includes intermediate data encoded by a second device; decoding the bitstream to obtain the intermediate data; and performing data form conversion, including domain conversion, on the intermediate data to obtain probe data. The probe data corresponds to one or more probes in a three-dimensional scene and is for determining a shading effect of an object in the three-dimensional scene in a rendering process.

Abstract: Embodiments of this application provide an image rendering method and a terminal-cloud collaboration system, and relate to the field of image processing technologies. The method includes: A client end may control a service end to perform a computing processing process of a corresponding visual feature based on a computing processing requirement of the visual feature related to ray tracing of the client end, so that the client end can obtain, from the service end, an intermediate rendering result of a visual feature that needs to be rendered, rendering effect of a visual feature in a rendered image of the client end is updated in real time in a terminal-cloud collaboration manner, to improve image rendering quality of the client end.

Abstract: An encoding method includes obtaining probe data, where the probe data corresponds to one or more probes in a three-dimensional (3D) scene, and the probe data is used by a second device to determine shading effect of an object in the 3D scene in a rendering process; performing data form conversion on the probe data to obtain intermediate data, where the data form conversion includes domain conversion; and encoding the intermediate data to obtain a corresponding bitstream.

Abstract: Embodiments of this application provide a decoding method and an electronic device. The method includes: obtaining a bitstream that includes intermediate data encoded by a second device; decoding the bitstream to obtain the intermediate data; and performing data form conversion, including domain conversion, on the intermediate data to obtain probe data. The probe data corresponds to one or more probes in a three-dimensional scene and is for determining a shading effect of an object in the three-dimensional scene in a rendering process.

Abstract: This application relate to the field of media technologies, and disclose an encoding method and apparatus, and a decoding method and apparatus, to improve flexibility of a probe data coding scheme. An example method includes: first obtaining probe data of a plurality of probes, and then dividing the probe data into a plurality of probe data groups; then, performing first encoding on a first probe data group in the plurality of probe data groups to generate a first encoding result, and performing second encoding on a second probe data group in the plurality of probe data groups to generate a second encoding result; and then, generating a bitstream based on the first encoding result and the second encoding result. An encoding scheme of the first encoding is different from an encoding scheme of the second encoding.

Abstract: This application provides a data processing method and device. The method includes: collecting a first image by using a camera; obtaining first point cloud data of the object based on the first image, where the first point cloud data indicates three-dimensional coordinate values of a surface point of the object in a first camera coordinate system of the first terminal; obtaining pose data of the first terminal in the first camera coordinate system based on the first image; obtaining a two-dimensional feature image based on the pose data, the first point cloud data, and the first image; generating map data based on the first point cloud data, the pose data, and the two-dimensional feature image; and sending the map data to a second terminal or a server.

Abstract: A display module for a head-mounted display device includes a display assembly, an optical imaging assembly, and a virtual image location adjustment assembly. The display assembly is configured to display an image. The optical imaging assembly is configured to form a virtual image based on the image. The virtual image location adjustment assembly is configured to adjust at least one of the optical imaging assembly and the display assembly to adjust the virtual image to a target location. The virtual image location adjustment assembly adjusts the optical imaging assembly and/or the display assembly.

Abstract: This application provides a data processing method and device. The method includes: collecting a first image by using a camera; obtaining first point cloud data of the object based on the first image, where the first point cloud data indicates three-dimensional coordinate values of a surface point of the object in a first camera coordinate system of the first terminal; obtaining pose data of the first terminal in the first camera coordinate system based on the first image; obtaining a two-dimensional feature image based on the pose data, the first point cloud data, and the first image; generating map data based on the first point cloud data, the pose data, and the two-dimensional feature image; and sending the map data to a second terminal or a server.

Abstract: A pickup apparatus includes a digital signal processor, at least one microphone, multiple amplifiers, and multiple analog-to-digital converters (ADCs), where each microphone is configured to receive an audio signal, and send the audio signal to an amplifier corresponding to the microphone, each amplifier is configured to amplify the received audio signal, and send the amplified audio signal to an analog-to-digital converter corresponding to the amplifier, each analog-to-digital converter is configured to convert the received audio signal into a digital signal, and send the digital signal to the digital signal processor, and the digital signal processor is configured to receive multiple digital signals sent by the multiple analog-to-digital converters, determine an unclipped digital signal from the multiple received digital signals, and determine an output signal according to a gain value corresponding to the unclipped digital signal.

Abstract: The present invention discloses a terminal. The terminal includes: a first camera, a second camera, a processor, the processor is connected to both the first camera and the second camera, the first camera and the second camera are located on a same side of the terminal, the first camera is configured to acquire an image in a first region; the processor is configured to: analyze the image acquired by the first camera, determine, according to an analysis result, exposure used when the second camera acquires an image in a second region; the second camera acquires the image in the second region according to the exposure that is determined by the processor and is used when the second camera acquires the image in the second region; the processor is configured to synthesize the images into a high dynamic image.

Abstract: A pickup apparatus includes a digital signal processor, at least one microphone, multiple amplifiers, and multiple analog-to-digital converters (ADCs), where each microphone is configured to receive an audio signal, and send the audio signal to an amplifier corresponding to the microphone, each amplifier is configured to amplify the received audio signal, and send the amplified audio signal to an analog-to-digital converter corresponding to the amplifier, each analog-to-digital converter is configured to convert the received audio signal into a digital signal, and send the digital signal to the digital signal processor, and the digital signal processor is configured to receive multiple digital signals sent by the multiple analog-to-digital converters, determine an unclipped digital signal from the multiple received digital signals, and determine an output signal according to a gain value corresponding to the unclipped digital signal.

Abstract: The present invention discloses a terminal. The terminal includes: a first camera, a second camera, a processor, the processor is connected to both the first camera and the second camera, the first camera and the second camera are located on a same side of the terminal, the first camera is configured to acquire an image in a first region; the processor is configured to: analyze the image acquired by the first camera, determine, according to an analysis result, exposure used when the second camera acquires an image in a second region; the second camera acquires the image in the second region according to the exposure that is determined by the processor and is used when the second camera acquires the image in the second region; the processor is configured to synthesize the images into a high dynamic image.

Abstract: A device and a method for frame lost concealment are disclosed. A pitch period of a current lost frame is obtained on the basis of a pitch period of the last good frame before the current lost frame. An excitation signal of the current lost frame is recovered on the basis of the pitch period of the current lost frame and an excitation signal of the last good frame before the lost frame. Thereby, the hearing contrast of a receiver is reduced, and the quality of speech is improved. Further, in the present invention, a pitch period of continual lost frames is adjusted on the basis of the change trend of the pitch period of the last good frame before the lost frame. Therefore, a buzz effect produced by the continual lost frames is avoided, and the quality of speech is further improved.

Abstract: A device and a method for frame lost concealment are disclosed. A pitch period of a current lost frame is obtained on the basis of a pitch period of the last good frame before the current lost frame. An excitation signal of the current lost frame is recovered on the basis of the pitch period of the current lost frame and an excitation signal of the last good frame before the lost frame. Thereby, the hearing contrast of a receiver is reduced, and the quality of speech is improved. Further, in the present invention, a pitch period of continual lost frames is adjusted on the basis of the change trend of the pitch period of the last good frame before the lost frame. Therefore, a buzz effect produced by the continual lost frames is avoided, and the quality of speech is further improved.