32results about "Conversion with high definition standard" patented technology

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 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.

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.

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 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.

An HDMI FRL error correction system includes a SR / SSB correlator, an SR / SSB lock detector coupled to the SR / SSB correlator, an SR / SSB predictor coupled to the SR / SSB lock detector, an SR / SSB bit error corrector coupled to the SR / SSB correlator, the SR / SSB lock detector and the SR / SSB predictor, and an SR / SSB detector coupled to the SR / SSB bit error corrector. The SR / SSB correlator is used to correlate an input SR signal to a SR signal or correlate an input SSB signal to a SSB signal and generate a correlation result accordingly. The SR / SSB lock detector is used to set a lock flag according to the correlation result.

The invention relates to the field of display equipment interface expansion, and discloses a Type-C to four-path HDMI video docking station system and device, and the system comprises an input module which is used for receiving a Type-C or DisplayPort video signal from a host; the multi-stream transmission distribution module is used for distributing the input video signal into multiple paths, one path is output to the protocol conversion module, and the other path is output to the next-stage multi-stream transmission distribution module as a daisy chain; and the protocol conversion module is used for converting the DisplayPort signal output by the multi-stream transmission distribution module into an HDMI (High Definition Multimedia Interface) signal. A physical link from single-path input to four-path HDMI output is realized in a single docking station through a four-stage cascade chip group, and signal splitting and protocol conversion are synchronously completed at each stage, so that a common HDMI display is directly accessed to a system, a four-screen independent display function is realized through pure hardware, and the compatibility and expansion capability of common display equipment are improved.

The invention discloses a high-definition multimedia interface fixed rate link error correction system. Comprising a scrambling code reset and super block start correlator, a scrambling code reset / super block lock detector coupled to the scrambling code reset and super block start correlator, a scrambling code reset / super block lock detector coupled to the scrambling code reset / super block lock detector, a scrambling code reset / super block predictor coupled to the scrambling code reset / super block correlator, and a super block predictor coupled to the scrambling code reset / super block lock detector. A scrambling code reset / super block bit error corrector of the scrambling code reset / super block lock detector and the scrambling code reset / super block predictor, and a scrambling code reset / super block detector coupled to the scrambling code reset / super block bit error corrector. The scrambling code reset and super block start correlator is used for correlating an input scrambling code reset signal with a scrambling code reset signal or correlating an input super block signal with a super block signal and correspondingly generating a correlation result. The scrambling code reset / super block lock detector is used for setting a lock flag according to the correlation result.

The invention relates to an HDMI / FC-AV gateway conversion delay measurement system and method, belongs to the technical field of gateway conversion delay measurement, and solves the problem that the existing gateway conversion delay measurement depends on professional measurement. The system comprises a test frame data generation module which generates corresponding test frame data according to randomly generated color values of test pixels; the test pixel pulse generation module is used for carrying out numerical value comparison on the video data signal and the test pixel color value and generating a test pixel pulse signal; the HDMI sending module converts the test frame data into an HDMI video signal, and a reference video data signal is obtained through a tested HDMI / FC-AV gateway and an FC-AV link layer; the test point pixel searching module is used for carrying out numerical value comparison on the reference video data signal and the test pixel color value to generate a reference test pixel pulse signal; and the conversion delay measurement module obtains conversion delay according to the reference test pixel pulse signal and the test pixel pulse signal.

The application relates to the technical field of image communication, in particular to a video slow-motion 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 encoding output module. The acquisition module outputs an original video frame sequence through a ring buffer; the processing module parallelly separates a detail component after denoising and an edge gradient feature; the frame rate conversion module uses a geometric structure as a boundary locking condition, guides the detail component to execute nonlinear motion compensation and intermediate frame reconstruction; and the playback module executes time base remapping and distributed encoding transmission. Through a structure constraint texture depth generation architecture, in combination with a space-time consistency check and a nearest neighbor pixel backfilling mechanism and a virtual time base rate decoupling technology, the application realizes real-time slow-motion video review for high-speed moving targets with high signal-to-noise ratio and no artifacts.

To provide an illumination device which can precisely control brightness for each area.SOLUTION: An illumination device includes a threshold, a plurality of light sources, a spacer and a diffuser panel. The plurality of light sources and the spacer are surrounded with the threshold. The height of the threshold is made higher than that of the plurality of light sources, and an interval between the threshold and the diffuser panel is made shorter than the height of the threshold. An interval between the threshold and the diffuser panel is made longer than the height of the light source. Thus, it is possible to prevent light leakage from the light source to the outside of the threshold, and precisely control brightness for each area.SELECTED DRAWING: Figure 10

The invention relates to an image processing method and system and a medium, and the method comprises the following steps: an ARM main control chip splits a to-be-displayed high-resolution original image into N paths of sub-image signals according to a target display resolution and a single-path maximum support resolution of a rear-end FPGA chip, and transmits the N paths of sub-image signals to a signal conversion chip, N is an integer greater than 1, and N is an integer greater than 1; the resolution of each sub-image does not exceed the single-path maximum support resolution of the FPGA chip; the signal conversion chip converts the N paths of sub-image signals into N paths of image signals in a format which can be supported by the rear-end FPGA chip and transmits the N paths of image signals to the FPGA chip; and the FPGA chip splices the received N paths of image signals into a complete image frame with the resolution consistent with that of the original image according to preset layout information, and then outputs the complete image frame. According to the invention, intelligent image splitting is carried out on the front-end ARM chip, and accurate image splicing is carried out on the rear-end FPGA chip, so that ultra-high-definition and high-resolution display of the LED screen is realized on the premise of not upgrading the hardware of the rear-end chip.

In an example method and system, image data to an image processing module. Image data is read from memory into a down-scaler, which down-scales the image data to a first resolution, which is stored in a first buffer. A region of image data which the image processing module will request is predicted, and image data corresponding to at least part of the predicted region of image data is stored in a first buffer, in a second resolution, higher than the first. When a request for image data is received, it is then determined whether image data corresponding to the requested image data is in the second buffer, and if so, then image data is provided to the image processing module from the second buffer. If not, then image data from the first buffer is up-scaled, and the up-scaled image data is provided to the image processing module.

The invention provides a DP-to-HDMI / LVDS / VGA multifunctional adapter, and relates to the technical field of video converters, and the adapter comprises a DP signal source end which is used for generating a DP signal and processing a configuration request and a link training command from a DP controller; the DP controller is used for executing clock recovery, performing CSC color space conversion, configuring an output interface and feeding back on-off conditions of downstream equipment to a DP signal source end, and is also provided with an FIFO buffer and an output control register; the HDMI transmitter is used for outputting a TMDS differential signal and a clock signal after data processing; the video digital-to-analog converter is used for converting the digital signal into an analog signal; and the LVDS transmitter is used for outputting an LVDS data differential signal and a clock signal after data processing. The method has the advantages that the problems of clock domain conversion and high-frequency noise output are solved while the problem of single interface conversion is solved.

The embodiment of the invention discloses display equipment and a control message processing method. A first processor receives a first control message and a second control message which are sequentially sent by CEC equipment when the CEC equipment is started; if the main processor is in the standby state, the first processor sends a wake-up signal to the main processor based on the first control message, and temporarily stores a second control message in the memory; the first control message is used for controlling the display equipment to start, and the second control message is used for indicating to switch a signal source of the display equipment to a target channel; the main processor responds to the wake-up signal, executes a startup operation, and executes an initialization operation on the CEC driving service; and when initialization of the CEC driving service is completed, the main processor acquires the second control message from the memory through the CEC driving service, and switches the signal source of the display device to the target channel based on the identification information in the second control message, so that the display displays a picture corresponding to the target channel, thereby avoiding the problem of failure of switching the signal source based on the CEC.

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

The invention discloses a networking mode of a complex scene video conference, and relates to the technical field of video conference methods. According to the networking mode of the complex scene video conference, a plurality of video conference terminals are deployed in a local main conference place, a superior unit conference and a local branch conference place conference are connected through a special line and an MCU, a back-to-back audio and video channel is constructed, and efficient and stable interconnection is achieved; hDMI cable lossless transmission is adopted, and the audio and video quality is guaranteed through a double-current separation transmission channel; a mobile conference unit comprising a mobile trolley is arranged, wireless access is supported, the code rate is dynamically adjusted in displacement, networks are automatically switched, and conference continuity is ensured; and the operation convenience and the information display comprehensiveness are improved by utilizing a hierarchical operation interface of the SMC control platform and cooperating with a multi-preset-position camera, a picture-in-picture mode and the like. The networking mode significantly improves the efficiency, quality and user experience of the video conference in a complex scene, and meets diversified conference requirements.

An image providing method includes configuring a region of interest in an original image; generating a high-quality image and a low-quality image by using the original image; reconstructing the region of interest and a remaining region other than the region of interest by using the high-quality image and the low-quality image; and transmitting the reconstructed region of interest and the reconstructed remaining region via a single stream.

The invention discloses an HDMI direct display method and system for an LED spliced screen, and relates to the field of image communication, and the method comprises the steps: directly connecting an HDMI signal of signal source equipment to a first box body; the HDMI signal is subjected to image scaling processing through a processing circuit in the box body so as to adapt to display parameters of the spliced screen, and the HDMI signal is converted into an LED driving signal to lighten an LED module of the box body; and meanwhile, the HDMI signal is looped out to the next box body, and the rest can be done in the same way, so that signal cascade distribution and synchronous display are realized. The system is formed by splicing a plurality of box bodies, an HDMI signal processing circuit board is arranged in each box body, and each box body is provided with an HDMI input and output interface, an image scaling module and a scanning control module which are sequentially cascaded through HDMI cables. According to the invention, an external splicing processor is omitted, HDMI signal direct-drive display is realized, the system structure is simplified, and the cost and deployment complexity are reduced.

A power-saving method for switching High Definition Multimedia Interface (HDMI) ports on a sink device. The sink device has at least one HDMI port. The sink device is used to receive data frames via a fixed rate link (FRL). The method includes turning off a power of an HDMI port for a power-off period upon detecting an active pixel, and turning on the power of the HDMI port for a power-on period upon completion of the power-off period. The power-on period includes at least a scrambler reset period (TSR) and a high bandwidth digital content protection (HDCP) period.

The invention provides a dual-mode transmission device. The dual-mode transmission device comprises a dual-mode signal output port, a detection module and a signal mode switching module, the dual-mode signal output port is used for connecting a data source to the DP signal receiving port or the HDMI signal receiving port in a convertible manner. The detection module is used for detecting the type of a signal receiving port connected with the dual-mode signal output port. The signal mode switching module converts the dual-mode signal output port into a DP specification signal output port according to the type of the signal receiving port, and is correspondingly connected to the DP signal receiving port; or the dual-mode signal output port is converted into the HDMI standard signal output port, and the HDMI standard signal output port is correspondingly connected with the HDMI signal receiving port. The dual-mode signal output port, the detection module and the signal mode switching module are electrically connected with one another, and the signal mode switching module switches the DP specification signal output port and the HDMI specification signal output port by detecting the potentials of two pins in the detection module.

The application provides a method for capturing an image in a video, an electronic device and a readable medium. The method comprises: displaying a video interface of a camera application, the dynamic range of the image displayed by the video interface being greater than a first value, the first value indicating that the image displayed by the video interface is a non-low dynamic range image, and the image displayed by the video interface being stored in a cache area; and in response to a capture instruction in the video, taking the image corresponding to the capture time in the cache area as the captured image. The cache area stores the image displayed by the video interface, that is, the image captured by the camera is stored in the cache area. The image is greater than the first value, and the first value indicates that the image is a non-low dynamic range image, which means that the camera outputs a high dynamic range image, and the video interface belongs to an HDR video interface. In the case of a capture instruction in the video, the image corresponding to the capture time in the cache area is taken as the captured image, and the capture time is the time corresponding to the capture instruction, which ensures the ZSL requirement of image capture.

The invention provides a display device and an image display method of the display device. The display equipment comprises a display screen, a high-definition multimedia interface (HDMI) and at least one processor, wherein the display screen is formed by splicing a plurality of display modules, the display modules comprise a first display module and a second display module, the first display module and the second display module are connected through an unshielded twisted pair UTP network cable, and a second HDMI signal is transmitted from the first display module to the second display module through the unshielded twisted pair UTP network cable. The high-definition multimedia interface HDMI is used for obtaining audio and video signals sent by a signal source and converting the audio and video signals into first HDMI signals. And the at least one processor is used for decomposing the first HDMI signal to obtain a second HDMI signal, so that the display screen generates a display image according to the second HDMI signal, thereby reducing signal complex transformation required by adopting a network protocol, and improving the convenience of a signal transmission process.

The invention discloses an LVDS port display screen self-adaption system and method, the system comprises a main processor, a signal exchange logic circuit, a configuration information module and an LVDS display screen, the configuration information module is used for storing the configuration information of the LVDS display screen, the main processor is in communication connection with the configuration information module and the signal exchange logic circuit, and the signal exchange logic circuit is used for receiving the configuration information of the LVDS display screen. And the configuration module is used for reading the configuration information after the system is powered on and configuring the signal exchange logic circuit according to the configuration information. The LVDS display screen identification and configuration system is suitable for various LVDS display screens of different models, the application range and flexibility of products are improved, in the production link, the types of circuit boards are reduced, material management and inventory are simplified, accurate screen model matching is not needed, the cost of spare parts and the maintenance difficulty are reduced, the system automatically completes identification and configuration, a user does not need to carry out any manual setting, and the production efficiency is improved. By means of the external configuration module, a large number of existing traditional display screens can enjoy convenience brought by the self-adaptive function.

The invention discloses an HDMI distributor test method and related equipment, and the method comprises the steps: transmitting a test signal to a to-be-tested HDMI distributor, transmitting the test signal to a multi-picture processor through multi-path output of the to-be-tested HDMI distributor, and obtaining a plurality of picture signals received by the multi-picture processor in real time, according to the method, a plurality of picture signals and input parameter information of each output port of a multi-picture processor are detected, whether the plurality of picture signals and the input parameter information meet a preset detection standard or not is finally judged, and a result of whether the HDMI distributor to be detected meets a preset requirement or not is obtained; by automatically acquiring and detecting whether the picture signal and the input parameter information meet the preset detection standard, the technical problems of high equipment cost, poor test precision and low test efficiency in the HDMI distributor test in the prior art are solved.

The application discloses an audio and video mixing matrix double backup control system and particularly relates to the field of video processing control, which comprises a CAN bus and a plurality of input collection units and output signal units which are electrically connected with each other through the CAN bus. The CAN bus is further electrically connected with a digital signal exchange unit, a main control unit and a backup control unit. The backup control unit has the same control processor CPU and control interface as the main control unit. The double backup control system can flexibly configure the number and type of matrix input and output ports according to user requirements, does not waste the matrix ports, effectively saves the user cost, builds a multi-channel audio and video matrix system by using the characteristics of the CAN bus, flexibly increases or reduces the number of input and output units according to user requirements, builds a multi-channel backup control system by using the characteristics of the CAN bus, can realize real multi-backup control, the backup control immediately takes over the control of the whole system when the main control system fails, and the safety of the system is improved.

A dual-mode transmission device includes a dual-mode signal output port, a detection module and a signal mode switching module. The dual-mode signal output port is configured to switchably connect a data source to a DP signal receiving port or an HDMI signal receiving port. The detection module is configured for detecting the type of a signal receiving port connected to the dual-mode signal output port. The signal mode switching module converts the dual-mode signal output port into a DP specification signal output port according to the type of the signal receiving port, and connects to the DP signal receiving port accordingly; or converts the dual-mode signal output port into an HDMI specification signal output port, and connects to the HDMI signal receiving port. The signal mode switching module switches the DP and the HDMI specification signal output ports by detecting potentials of pins through the detection module.