139results about "Conversion with high definition standard" patented technology

The invention discloses a real-time video processing system based on an ampere-path FPGA. The real-time video processing system comprises an SD card, an ampere-path FPGA board card and an HDMI displayer. The SD card is used for storing original video data in a Bayer format; the A-path FPGA board card comprises an FPGA end and an ARM end, the FPGA end comprises an SD card reading control module, an image cache FIFO module, a Bayer-to-RGB module, a seven-in-one image processing module, an SDRAM read-write control module and an HDMI display control module, the first four modules are connected in sequence, and the SDRAM read-write control module is connected with the Bayer-to-RGB module, the seven-in-one image processing module and the HDMI display control module; wherein the ARM end comprises a Cortex-M0 processor core, an AHBLiite-Interconnect data bus and all peripheral interfaces, and all the modules are connected in sequence; the ARM end comprises a Cortex-M0 processor core, an AHBLiite-Interconnect data bus and all the peripheral interfaces; the ampere-path FPGA board card is used for completing all video processing functions; and the HDMI display outputs the processed video. The method is good in video processing effect, low in resource consumption, high in flexibility, high in stability and low in hardware cost, and the hardware is 100% localized.

The invention provides a preparation method of an HDMI (High Definition Multimedia Interface) high-performance common-mode suppressor made of a nanocrystalline material, relates to the technical field of electronic component preparation, and aims to meet the harsh requirement of HDMI high-frequency high-speed signals on common-mode noise suppression, the method comprises the following steps: constructing a multi-layer heterogeneous magnetic film with a gradient interface on a microstructured substrate by utilizing multi-target magnetron sputtering; a selective energy field assisted annealing technology is adopted to realize precise nanocrystallization and magnetic anisotropy regulation and control of the magnetic film; and a high-precision three-dimensional coil structure is integrated by combining a micromachining process. The prepared common-mode suppressor is small in size and high in integration level, shows excellent common-mode suppression efficiency, wide working bandwidth and excellent signal integrity in a high-frequency band, has high reliability, and is suitable for a new generation of HDMI (High-Definition Multimedia Interface).

A multimedia processing method, a multimedia processing apparatus, and a non-transitory computer-readable storage medium are disclosed. The multimedia processing method includes: acquiring an input multimedia, and performing image quality enhancement processing on the input multimedia to obtain an enhanced multimedia. A resolution corresponding to the enhanced multimedia is higher than a resolution corresponding to the input multimedia.

The invention relates to the technical field of image communication, in particular to a video slow-action frame insertion playback system based on a generative adversarial network, which comprises a video signal acquisition module, a signal processing module, a frame rate conversion module and a playback code output module. The acquisition module outputs an original video frame sequence through an annular buffer; the processing module separates the denoised detail components and the edge gradient features in parallel; the frame rate conversion module uses a geometric structure as a boundary locking condition to guide detail components to execute nonlinear motion compensation and intermediate frame reconstruction; and the playback module executes time base remapping and distributed coding transmission. According to the invention, through a depth generation architecture of structural constraint textures, in combination with space-time consistency verification and a nearest neighbor pixel backfilling mechanism and a virtual time base rate decoupling technology, real-time slow-action video redisk with high signal-to-noise ratio and no artifacts for a high-speed moving target is realized.

The present technology is to enable a transmitter device to read appropriate device information (EDID) from a receiver device with a reduced burden on the user. A memory unit that stores first device information and second device information, and a communication unit that communicates with an external device are included. The control unit determines to cause the external device to read the second device information, on the basis of reception of a rewrite signal for the first device information from the external device. It is possible to cause the external device (a transmitter device) to read appropriate device information (EDID) from a receiver device (a reception device) with a reduced burden on the user, and thus, user-friendliness can be increased.

The invention is suitable for the technical field of seat cooperation, and provides a non-IP type optical fiber seat cooperation system, which comprises an audio and video input acquisition node, an audio and video output display node, a seat operation node and an audio and video dedicated switch, the audio and video input acquisition node and the seat operation node are both used for converting an acquired signal into an optical fiber signal, performing data marking on the optical fiber signal according to a private protocol, and transmitting the optical fiber signal to the audio and video special switch; the audio and video dedicated switch is used for receiving optical fiber signals of the audio and video input acquisition node and the seat operation node, and distributing the optical fiber signals to the audio and video output display node or the seat operation node according to the USB control signal; and the audio and video output display node and the seat operation node are both used for converting the optical fiber signal into a cooperative signal and displaying an image digital signal of the cooperative signal on the display equipment. The non-IP type optical fiber agent cooperation system has the advantages of being high in transmission efficiency, low in delay, stable and reliable.

A transmission method in the present disclosure includes; obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) or an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information. According to the transmission method in the present disclosure, a receiving device that received a high dynamic range (HDR) image and a standard dynamic range (SDR) image transmitted through broadcasting or the like can display these images appropriately.

The invention discloses a video transmission processing method based on HDMI2.0, relates to the technical field of video processing, and solves the technical problems of transmission channel blockage and influence on transmission efficiency caused by simultaneous transmission of a plurality of pieces of image data when the image data in a shared memory is transmitted through a network processor in the prior art. The method comprises the following steps: segmenting an original video to obtain an original video image and an original video audio, and respectively segmenting the original video image and the original video audio; respectively coding the image segment and the audio segment to obtain an image identifier and an audio identifier; respectively calculating the priorities of the image segments and the audio segments; sequentially transmitting the image segments and the audio segments according to the priorities of the image segments and the audio segments; the client side sorts and recombines the received image segments and audio segments, detects whether sound and picture synchronization is carried out on the sorted and recombined video or not, and corrects the asynchronous video; the transmission channel can be prevented from being blocked, and the transmission efficiency can be improved.

The invention provides an image resolution adjusting method and an electronic device. The method comprises the following steps: running a target application program to obtain a target image with a first resolution based on a first frame rate; selecting a target memory from the plurality of buffer memories according to the utilization rate of each of the plurality of buffer memories during the running of the target application program; processing the target image through an image processing model and a target memory to adjust the resolution of the target image from the first resolution to a second resolution, the second resolution being higher than the first resolution; and controlling the display interface to present the target image with the second resolution based on the first frame rate. Therefore, the user experience and the image processing efficiency of the electronic device can be effectively improved.

The invention relates to the technical field of digital videos, in particular to a three-party cooperative processing video real-time transmission and processing heterogeneous system which comprises a server CPU end, an ARM end, an FPGA end and a plurality of modules, after the system is powered on, the server CPU end serves as a client side to obtain video stream data and sends the video stream data to the FPGA end and the ARM end, the ARM end uses an LWIP interface as an IP protocol stack, and the LWIP interface serves as an IP protocol stack; the FPGA receives video stream data sent by the CPU through an udp protocol, the video stream data is temporarily stored in the DDR storage chip externally connected with the FPGA, the image processing module obtains the video stream data and then processes the video stream data, and the processed video stream data displays and compares an original video and a processed video through the HDMI display IP module. The high parallel computing capability of the FPGA, the low power consumption control capability of the ARM and the flexibility of the CPU are cooperatively utilized, real-time transmission, processing and display of video streams are achieved, the replaceable image processing module is further designed, various image processing functions are achieved through the user-defined image processing module, and various application requirements are met.

The present technology is to enable a transmitter device to read appropriate device information (EDID) from a receiver device with a reduced burden on the user.A memory unit that stores first device information and second device information, and a communication unit that communicates with an external device are included. The control unit determines to cause the external device to read the second device information, on the basis of reception of a rewrite signal for the first device information from the external device. It is possible to cause the external device (a transmitter device) to read appropriate device information (EDID) from a receiver device (a reception device) with a reduced burden on the user, and thus, user-friendliness can be increased.

A docking device and method with video capturing function are provided. The docking device includes a first interface, an output interface, a second interface, a first video processor and a video capturing device. The docking device receives a first input video signal or a second input video signal from the first interface or the second interface. The first video processor generates a first output video signal with an output format in response to the first input video signal or the second input video signal. The video capturing device generates a second output data signal with a format of the Universal Serial Bus in response to the first input video signal or the second input video signal.

A method for converting a source video content constrained to a first color space to a video content constrained to a second color space using an artificial intelligence machine-learning algorithm based on a creative profile.

The invention relates to the technical field of HDMI (High Definition Multimedia Interface) transmission, and provides an HDMI one-way transmission security enhancement method and device, and the method comprises the steps: determining the version, interface type and pin serial number and definition of an HDMI used in an application scene, and identifying whether an HDMI transmission channel is a one-way channel or a two-way channel; for a bidirectional channel which is not needed in an application scene, one-way transmission security enhancement is realized by adopting a physical cutting mode; for a bidirectional channel required by an application scene, one-way transmission security enhancement is realized by adopting a physical cutting-off and receiving end simulation substitution mode; for a one-way channel, a signal amplifier is adopted to realize one-way transmission security enhancement. According to the invention, unidirectional transmission security enhancement can be carried out on the HDMI native interface, so that the HDMI native interface has a pure unidirectional transmission characteristic, security risks such as sensitive data leakage of a receiving end are blocked, and the unidirectional transmission security of the HDMI is improved. Moreover, the system is improved based on a native interface, and has the advantages of low power consumption, small size, low cost and the like.

The invention discloses a safety elimination integrated bus video data decoding method. The method comprises the following steps: collecting video data of a fire scene through a video smoke detector; a video smoke detector and a bus video decoder are directly connected to a fire-fighting bus in parallel, H264 video data of a camera is packaged into an Ethernet data packet by the video smoke detector, the Ethernet data packet is sent to a PLC decoding board on the fire-fighting bus and the bus video decoder after being subjected to PLC coding, the PLC data is decoded into the Ethernet data packet, the Ethernet data packet is forwarded to a video decoding board through an Ethernet port, and the video decoding board is used for decoding the video data packet. The video decoding board analyzes the H264 video after receiving the H264 video, decodes and plays the H264 video, and outputs the H264 video to the display through the VGA / HDMI, in the video data transmission process, the video data is optimized, the video data transmission quality can be ensured, and the video data transmission quality can be ensured on the basis of a traditional fire-fighting network under the condition that an original line is not modified. And a video smoke detector and a bus video decoder are additionally arranged, so that a video monitoring function is realized.

The application provides an arbitrary resolution HDMI prototype verification device and method, wherein a frame analysis unit analyzes received data packets and stores analyzed image data into a storage unit at a limited clock frequency, a frame extraction unit sequentially extracts each frame image data from the storage unit at a clock frequency corresponding to a corresponding resolution, when the frame extraction unit sequentially extracts previous frame image data, it is judged whether next frame image data is stored in the storage unit; if the next frame image data has been stored, the frame extraction unit extracts the next frame image data; if the next frame image data has not been stored, the frame extraction unit repeatedly extracts the previous frame image data until the next frame image data is stored; the frame extraction unit outputs the extracted image data and performs image display; through the above method, the clock frequency required by any resolution is matched with the limited clock frequency, and corresponding verification is completed.

To provide a reception method of images capable of properly displaying the images.SOLUTION: The reception method includes: a step of receiving a first content compatible with HDR and a piece of characteristic information of the first content indicating one of OETF and EOTF (step S21); a step of receiving a second content that is compatible with SDR, and contains at least one of subtitles and image, and is displayed with the first content (step S22); and a step of determining whether or not a scale factor written in TTML has been received, and when determined the scale factor has been received, converting the second content into the first content that is compatible with HDR using the scale factor, and when determined that the scale factor has not been received, converting the second content into second content compatible with HDR using a default value stored in the reception device (step S23).SELECTED DRAWING: Figure 15A

The invention discloses a method for switching a DP interface to an HDMI interface and an interface converter. The method comprises the following steps: receiving a main data flow attribute MSA sent by the DP interface; analyzing the MSA to obtain the total amount of horizontal lines occupied by a vertical synchronization Vsync signal and a vertical back shoulder VBP; sending the data stream sent by the DP interface to the HDMI interface in a delayed manner, wherein the number of horizontal lines occupied by the delayed sending in the time domain is the total amount X; and when the data enable DE identifier is monitored in the data stream sent by the DP interface, sending a Vsync signal to the HDMI interface. Therefore, the data flow of the HDMI interface is staggered by X horizontal lines backwards relative to the data flow of the DP interface, and at the moment, the time domain position for sending the Vsync signal is overlapped with the position of the DE identifier. Furthermore, the Vsync signal is sent when the DE identifier is monitored, so that the normalization of the data stream sent to the HDMI interface is ensured, and the compatibility of switching the DP interface to the HDMI interface is improved. Compared with the method of carrying out software and hardware adaptation on the graphics card to enable the graphics card to have the capability of sending the AS-SDP, the resource overhead is relatively low, and the implementation cost is reduced.

The invention relates to the technical field of ultrasound, and discloses a display signal output circuit in an ultrasonic product and the ultrasonic product, the circuit comprises a hot plug detection module, a differential signal one-to-two module and an HDMI-to-S-Vedio module, the hot plug detection module detects the in-place state of HDMI and S-Vedio display equipment and feeds back the in-place state to a CPU; the differential signal one-to-two module divides a single-path HDMI differential signal output by the CPU into two paths, one path is directly output to the HDMI display device, and the other path is converted into an S-Vedio signal through the HDMI-to-S-Vedio module and then output to the S-Vedio display device. One HDMI signal source is expanded into two different video signals to be output, the problem that CPU video signals are insufficient is solved, and the circuit is simple in structure, flexible in design and suitable for multi-screen display scenes of ultrasonic products.

An audio and video conversion circuit and a live broadcast device, when a first HDMI multimedia signal is connected through an HDMI conversion circuit, the first HDMI multimedia signal is converted to output an RGB video signal and a first digital audio signal; the RGB conversion circuit converts the RGB video signal to output a digital video signal; the audio synthesis circuit synthesizes the received first analog audio signal and the first digital audio signal to output a second digital audio signal; the USB conversion circuit converts the second digital audio signal and the digital video signal into a USB signal; wherein the first analog audio signal can carry externally input voice information, realizes the synthesis of the first analog audio signal and the first HDMI multimedia signal, and thus realizes the live broadcast of the commentary of the multimedia information carried by the HDMI multimedia signal.

The invention provides a video signal conversion method and device, electronic equipment, a storage medium and a program product. The conversion method comprises the following steps: acquiring a first color signal; wherein the first color signal is obtained through a first video signal; determining a first brightness signal according to a preset brightness formula and the first color signal; determining a second brightness signal according to a preset inverse tone mapping operator and the first brightness signal; determining a brightness scaling coefficient according to the first brightness signal and the second brightness signal; determining a second color signal according to the first color signal and the brightness scaling coefficient; wherein the second color signal is used for generating a second video signal. According to the technical scheme, the brightness scaling coefficient is determined based on the first color signal, the preset brightness formula and the preset inverse tone mapping operator, so that the second color signal meeting the requirement of the second video signal is obtained, and the whole process has the advantages of low cost and high efficiency.

Video conversion technology, in which a first stream of video content is accessed and multiple, different layers are extracted from the first stream of the video content. Each of the multiple, different layers are separately processed to convert the multiple, different layers into modified layers that each have a higher resolution. The modified layers are reassembled into a second stream of the video content that has a higher resolution than the first stream of the video content.

The invention provides a phase synchronization detection system and method for multipath HDMI signals, and the method comprises the steps: receiving multipath HDMI input signals transmitted by a corresponding decoding card group through each phase detection device, and extracting phase detection data from the multipath HDMI input signals; performing multi-dimensional cross comparison on the phase detection data through a phase analysis algorithm to obtain deviation detection data; performing dynamic coding compression on the deviation detection data to obtain compressed detection data; distributing priority labels to the compressed detection data according to different types; transmitting the compressed detection data to the user terminal according to the priority label; the user terminal receives the compressed detection data sent by the plurality of phase detection devices at the same time, and decodes the compressed detection data to obtain deviation detection data; generating a phase comparison diagram updated in real time according to the deviation detection data; and each phase detection device is externally connected with a display for displaying a comparison diagram of each path of HDMI input signals received by the phase detection device.

The present application discloses a display method, a display device, and a computer-readable storage medium, which relate to the field of display technology and can be used to: obtain the extended display identification data EDID processing capability of a video source device; when the EDID processing capability of the video source device supports parsing the extended EDID, receive the first video data from the video source device; adjust the resolution of the first video data from the first resolution to the second resolution to obtain the second video data; adjust the resolution of the second video data from the second resolution to the third resolution to obtain the third video data; the third resolution is the resolution of the display of the display device; and display the third video data by scanning two rows of pixels at the same time.

A sink device comprising a connector which has a first ground (GND) corresponding to a first standard; and a processor which receives a signal from a source device, via the connector, and if the received signal is of a second standard corresponding to a second GND that includes the first GND, requests, from the source device, information about the signal of the second standard.

The application discloses a signal processing method and device based on a distributed system and a storage medium, relates to the technical field of electric communication, and receives an original output signal of an ultra-high-definition signal source through a digital input interface, determines the resolution of a spliced display terminal and a target display area, performs stretching operation on the original output signal according to the resolution, performs area cutting on the stretched original output signal according to the target display area, determines a target signal, synchronizes the processed target signal to sub-distributed codec devices in the same group through a cascade architecture, and finally drives digital output interfaces of the sub-distributed codec devices to transmit the target signal to corresponding sub-screens of the spliced display terminal. The application processes the ultra-high-definition signal through multiple distributed codec devices in the distributed codec device and transmits the signal to corresponding sub-screens, so that the image display quality is improved and the image display delay is reduced.

The invention provides a method for capturing an image in video recording, electronic equipment and a readable medium. The method comprises the steps that a video interface of a camera application is displayed, the dynamic range of an image displayed by the video interface is larger than a first value, the first value indicates that the image displayed by the video interface is a non-low-dynamic-range image, and the image displayed by the video interface is stored in a cache region; and in response to a snapshot instruction in the video, taking an image corresponding to the snapshot moment in the cache region as a snapshot image. The cache region stores the image displayed by the video recording interface, that is, the image collected by the camera is stored in the cache region, the image is greater than the first value, and the first value indicates that the image is a non-low dynamic range image, which indicates that the camera outputs a high dynamic range image, and the video recording interface belongs to an HDR video recording interface. Under the condition that the snapshot instruction is formed in the video, the image corresponding to the snapshot moment in the cache region is taken as the snapshot image, and the snapshot moment is the moment corresponding to the snapshot instruction, so that the ZSL requirement of image snapshot is ensured.

The invention relates to a method for converting an input image comprising input luminance components constituted by elements into an output image comprising output luminance components constituted by elements, the output luminance component values having different range extensions than the corresponding ranges of input luminance component element values. The method comprises, for the input image, computing a general variable value representative of at least two input luminance component element values, transforming each input luminance component element value into a corresponding output luminance component element value as a function of the computed general variable value, and converting the input image using the determined output luminance component element values. The transforming step uses a set of predetermined output values organized into a 2D lookup table (2D LUT) comprising two input arrays indexing respectively a set of selected input luminance component values and a set of selected general variable values, each predetermined output value matching a pair of values constituted by an indexed input luminance component value and an indexed general variable value, the input luminance component element value being transformed into an output luminance component element value using at least one predetermined output value.

The present application discloses a method for converting a DP interface to an HDMI interface and an interface converter, comprising: receiving the main data stream attribute MSA sent by the DP interface; parsing the MSA to obtain the total number of horizontal lines occupied by the vertical synchronization Vsync signal and the vertical back porch VBP; delaying the sending of the data stream sent by the DP interface to the HDMI interface, and the number of horizontal lines occupied by the delayed sending in the time domain is a total of X; when a data enable DE flag is detected in the data stream sent by the DP interface, sending a Vsync signal to the HDMI interface. In this way, the data stream of the HDMI interface is staggered by X horizontal lines compared to the data stream of the DP interface, and the time domain position of the Vsync signal is overlapped with the position of the DE flag. Furthermore, when the DE flag is detected, the Vsync signal is sent, which ensures the standardization of the data stream sent to the HDMI interface and improves the compatibility of the DP interface to the HDMI interface. Compared with adapting the graphics card's software and hardware to enable it to have the ability to send AS-SDP, the resource overhead of the present application is small, which reduces the implementation cost.