416results about "Standards conversion" patented technology

The invention discloses a multi-protocol high-speed image data receiving and aligning method and system based on an FPGA (Field Programmable Gate Array), and relates to the technical field of electronic information and image processing. Serial data streams from an image sensor are received, an FPGA serial input primitive is dynamically called to convert serial data into parallel data; a low-voltage differential signal protocol, a mobile industry processor interface protocol and a serial low-voltage signal protocol are supported; a configurable sliding window mechanism is adopted to compare synchronous codes in real time, and byte boundaries are locked; by identifying the time difference of arrival of data of each channel, multi-channel phase alignment is realized by adopting hardware-level delay compensation, and data arriving at the channel in advance is compensated by adopting a first-level register cache; and analyzing frame header and frame tail information of the image data, reconstructing an original image matrix and generating a video time sequence signal. The problems of poor compatibility and high resource consumption in multi-protocol high-speed image data receiving are solved.

The invention provides a video processing method and device, computing equipment, a medium and a program product, and belongs to the field of video processing. The video processing method comprises the following steps: for any to-be-processed frame in a to-be-processed video, determining a first pixel set and a second pixel set corresponding to the to-be-processed frame from a plurality of pixels based on respective motion state information of the plurality of pixels of the to-be-processed frame; according to the respective motion vectors of the plurality of first pixels, determining the pixel positions of the plurality of first pixels in the prediction frame to obtain a first prediction pixel set corresponding to the prediction frame; determining a second prediction pixel set corresponding to the prediction frame based on a second pixel set corresponding to at least one to-be-processed frame before the to-be-processed frame in the to-be-processed video; and generating a prediction frame based on the first prediction pixel set and the second prediction pixel set. The method can improve the video rendering effect.

The invention discloses a non-intrusive image capturing and storing device and a non-intrusive image capturing and storing method. Relates to the technical field of security data storage, and solves the problems of acquisition blind areas, low data credibility and invalid data redundancy caused by a traditional software-level screenshot technology. The video conversion processing module is directly connected with a target host video output link through a standard video interface, the whole device is independent of a host system, does not depend on host permission, does not perform data interaction or protocol communication with a host, and avoids a collection blind area caused by insufficient permission or protection interception; the control processing module encrypts the frame-cut image to protect data security; the control processing module only triggers frame interception when detecting that the image is obviously changed, so that undifferentiated acquisition is avoided, redundant data irrelevant to auditing is reduced from the source, and the storage and operation cost of subsequent auditing analysis is reduced; the protection operation of the safety protection module is executed through a hardware interface and does not depend on host software logic, so that protection failure caused by remote control of a host is avoided.

The invention relates to the technical field of computer vision and deep learning, in particular to a video resolution improving method based on an AI vision engine and related equipment. The method comprises the following steps: receiving an input low-resolution video, and carrying out continuous frame group division on the low-resolution video; multi-scale feature extraction is carried out on each frame group to obtain an initial feature image corresponding to each frame group, and multi-scale features comprise shallow edge textures and deep semantic contents; performing feature alignment and fusion on the preset frame number of initial feature images to obtain a target spatial-temporal feature image frame; performing up-sampling processing on the target spatial-temporal feature image frame to obtain a target high-resolution image frame; and integrating all the target high-resolution image frames, and outputting a target high-resolution video stream. According to the method, video time sequence information can be efficiently and accurately utilized, vivid details can be generated while the resolution is improved, and the calculation efficiency is considered.

The invention discloses an image cross-domain transmission method and a double-domain architecture platform. In the method, a component in a first operating system domain performs image rendering, writes rendering completion data into a cross-domain shared memory after rendering is completed, and sends a rendering completion notification to a second operating system domain; and after receiving the rendering completion notification, the component in the second operating system domain reads the rendering completion data from the cross-domain shared memory, realizes picture output based on the rendering completion data, and sends a vertical synchronization signal to the first operating system domain, so that the component in the first operating system domain performs next-round image rendering. According to the method and the device, cross-domain image transmission is realized, and the integrity of image data transmission and the fluency of image display are ensured by using the rendering completion notification and the vertical synchronization signal.

The invention discloses an immersive video perception transmission method based on implicit integrated viewport prediction and representation learning code rate decision, and relates to the technical field of immersive video transmission and intelligent content perception coding optimization. In order to solve the problems of insufficient viewport prediction generalization, non-adaptive user preference modeling and poor stability under network disturbance in the prior art, the invention provides a method for establishing an implicit integrated viewport prediction model of a multi-input-output structure by collecting user head motion trail and view field thermodynamic diagram data; constructing a code rate decision engine of mutual information constraint by combining representation learning and reinforcement learning, and realizing tile-level dynamic code rate allocation according to a prediction result and user preference; introducing an adversarial training mechanism of bandwidth jitter and packet loss disturbance to enhance robustness; and end-to-end adaptive optimization is realized by adopting cloud, edge and terminal collaborative deployment. The method is suitable for a high-bandwidth and low-delay scene, the definition of a core visual area can be guaranteed, meanwhile, the bandwidth is remarkably saved, and the user experience continuity is improved.

An audiovisual system with a shared image-processing procedure and a method for processing video therein are provided. The audiovisual system performs the image-processing procedure on a specific format video for optimizing images of the video. If a video format is not supported by the image-processing procedure in the audiovisual system, the video is converted to a video format supported by the audiovisual system. Various videos of different formats can accordingly share the same image-processing procedure. In the method, a first format conversion procedure is performed for converting a received second format video to a first format video that is supported by the image-processing procedure performed in the audiovisual system. The first format video can then be processed by the audiovisual system. It is determined if one more format conversion is required according to the format supported by a display at an output end of the audiovisual system.

The invention relates to the technical field of video decoding, in particular to a self-adaptive video low-delay hard decoding display system, which identifies a video stream format and a switching state through a self-adaptive demultiplexing module, extracts naked stream data and judges a decoding mode; the dynamic decoder allocation module dynamically allocates decoding resources according to the mode information, and supports concurrent decoding of a whole-frame single decoder or N-fragment multi-decoders; and the frame synchronization and VCXO dynamic adjustment module outputs a latest complete frame in a whole frame mode, aligns and recombines fragmentation data according to a frame number in an N fragmentation mode, and dynamically adjusts a VCXO clock frequency based on a decoding and display time difference. According to the invention, multi-format compatibility, seamless switching of video streams and ultra-low delay display are supported, and black fields, static frames and picture tearing are effectively avoided.

The invention discloses an interactive display method, system and device for a video and a frame extraction picture based on a configuration file, a medium and a program, and belongs to the technical field of video monitoring. The method comprises the steps of forming an initial configuration file based on power plant data, and obtaining monitoring point information according to the initial configuration file; the monitoring point information is matched with the target monitoring point information, and after matching succeeds, the priority of the target monitoring point is obtained; according to the priority of the target monitoring point, broadband resource allocation is carried out, and a resource allocation strategy is obtained; and performing video or frame extraction picture display of the target monitoring point according to the resource allocation strategy. According to the method, through dynamic resource scheduling, intelligent frame extraction adaptation and low-delay interaction, the bandwidth utilization rate is improved, the abnormal response is accelerated, the operation efficiency is optimized, and the multi-scene compatibility is enhanced.

Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, for a conversion between a video unit of a video and a bitstream of the video, a candidate list for the video unit based on one or more non-adjacent video units of the video unit, wherein the candidate list is an intra block copy (IBC) candidate list or an intra template matching prediction (IntraTMP) candidate list, wherein an order positions of the one or more non-adjacent video units is predefined or based on coding information; and performing the conversion based on the candidate list.

The invention discloses a method and a system for outputting PGM and PVW signals through seamless switching of 24 paths of 12G-SDI ultra-high-definition videos, relates to the technical field of video production, and discloses a method and a system for outputting PGM and PVW signals through seamless switching of 24 paths of 12G-SDI ultra-high-definition videos. 24 paths of 12G-SDI video signals are subjected to grouping selection processing, the video format is unified, and a double-cache structure and a time synchronization mechanism are adopted, so that the problems of signal processing bottleneck and clock difference under a high-bandwidth condition are effectively solved; the problems of picture tearing and switching delay caused by high-bandwidth processing and signal clock difference in seamless switching of 24 paths of 12G-SDI video signals are solved, and low-delay and high-reliability PGM and PVW signal output is realized.

The invention provides a video data WLAN (Wireless Local Area Network) transmission monitoring method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring data buffer time of a video sending end; performing superframe difference processing on the data buffer time and preset buffer time to obtain a buffer time difference; and sending a data retransmission loss signal to the video receiving end according to the cache time difference so as to adjust a retransmission request mode of the video sending end. Generally, video data transmission adopts a broadcast mode to send data packets, when frame number loss exists, supplementary transmission is carried out according to current buffer area data, specifically supplementary transmission is carried out in a unicast mode so as to make up the packet loss condition of opposite terminal equipment during broadcasting, and when retransmission is carried out, retransmitted fragmented packets are not received within the time range of one frame, the time range of one frame is not received. And if yes, stopping retransmission and discarding the fragmented packet so as to ensure low delay and reliability during video data transmission and further ensure the video data transmission quality.

This invention discloses a multi-protocol high-speed image data reception and alignment method and system based on FPGA, belonging to the fields of electronic information and image processing technology. It receives serial data streams from image sensors, dynamically calls FPGA serial input primitives to convert serial data into parallel data, and supports low-voltage differential signals, mobile industrial processor interfaces, and serial low-voltage signal protocols. A configurable sliding window mechanism is used to compare synchronization codes in real time and lock byte boundaries. By identifying the arrival time difference of data from each channel, hardware-level delay compensation is used to achieve multi-channel phase alignment, and data arriving early from other channels is compensated using a first-level register buffer. The image data's frame header and tail information is parsed to reconstruct the original image matrix and generate a video timing signal. This invention solves the problems of poor compatibility and high resource consumption in multi-protocol high-speed image data reception.

There is provided a compression method implemented by at least one hardware processor, including: acquiring attention data generated in a layer of a deep learning model based on an attention mechanism; converting a data format of the attention data into a converted data format, wherein a bit pattern of the attention data is maintained in converting the data format of the attention data into the converted data format; realigning, based on data characteristics of input data of the deep learning model, the attention data in the converted data format; and generating first compressed data by inputting the realigned attention data to an encoder model based on an artificial neural network.

The utility model discloses a high-definition multi-path image processing structure, which comprises a shell, at least one network interface arranged on the shell, a processor arranged in the shell, a video decoder arranged in the shell and connected with the network interface and the processor, and a processor arranged in the shell and connected with the network interface and the processor. And the video receiver is arranged in the shell and is connected with the video decoder and the processor. Therefore, the system chip (system-on-chip, SoC) and the field programmable gate array (field programmable gate array, FPGA) are separately arranged, so that the required FPGA and SoC can be flexibly selected for development, the cost can be effectively reduced, the processing efficiency can be improved, the overall speed can be improved, the system load of a personal computer (PC) is reduced, and the development cost of the system chip (system-on-chip, SoC) and the development cost of the system chip (system-on-chip, SoC) can be reduced. Therefore, the structure of the utility model can carry out multi-path high-quality image processing.

The invention provides a multi-mode sensing inspection method based on terminal equipment. The multi-mode sensing inspection method comprises the following steps: collecting video data, audio data, geographic position data and IMU (Inertial Measurement Unit) data; video frames are extracted based on language trigger thinning, pose trigger thinning and visual trigger thinning; and finally, identifying hidden dangers based on the extracted video frames. According to the method, significant thinning processing of the video frames is realized through various kinds of perception information, the input load of the large model is greatly reduced on the premise that key semantic information is not missed, the problems of frame input limitation and low analysis efficiency of the multi-mode large model in analysis of the long-time industrial inspection video are solved, and the method is suitable for large-scale industrial inspection. Therefore, the efficiency and accuracy of large model analysis are improved. And the frame extraction process does not depend on a fixed frame rate, but is based on semantic driving of human behaviors and equipment states, so that the extracted key frame is more effective.

A system operable on a data communications network to operate on audio / video data includes a server computer communicatively coupled to the network. The server computer includes an application unit that runs an application. The application is accessible to a user device communicatively coupled to the network. The application unit requires audio / video data to run the application. The system also includes an audio / video server computer communicatively coupled to the network. The audio / video server computer transmits audio / video data over the network in response to a request. The user device includes at least a buffer, a decoder, and an output device. The server computer issues a demand request over the network to the user device to receive audio / video data for operation of the application unit. The demand request includes an identifier of the audio / video data and a network address of the audio / video server computer. The user device, upon receiving the demand request, issues a request over the network to the audio / video server computer in communication, and the audio / video server computer communicates the audio / video data over the network to the user device in communication. The user device reformats the audio / video data and communicates the reformatted audio / video data to the server computer. The server computer reverses the reformatted audio / video data to obtain substantially the original audio / video data for operation of the application unit.

The invention provides a connecting device for cooperative work of double computers. The connecting device comprises a first USB interface expansion module, a video acquisition module, a USB keyboard and mouse protocol conversion module and a second USB interface expansion module. A first external USB interface of the first USB interface expansion module is connected with an external master control computer, an HDMI output interface of the first USB interface expansion module is connected with an external display, and a first internal data interface and a second internal data interface of the first USB interface expansion module are respectively connected with an output end of the video acquisition module and an input end of the USB keyboard and mouse protocol conversion module. A second external USB interface of the second USB interface expansion module is connected with an external controlled computer, and a third internal data part interface and a fourth internal data part interface of the second USB interface expansion module are respectively connected with the input end of the video acquisition module and the output end of the USB keyboard and mouse protocol conversion module. According to the invention, a network is not needed, a controlled computer does not need software, a display and a keyboard and a mouse of one computer can be used as peripheral equipment of the other computer, fusion display and seamless operation of images of the two computers are realized, and the working efficiency and the safety are effectively improved.

The utility model provides a multi-channel video signal source real-time switching management circuit which is characterized in that the output end of a power supply is in power supply connection with a power supply voltage adjusting circuit and a video signal display device, and the output end of the power supply voltage adjusting circuit is in power supply connection with a video signal processing main control circuit; the input end of the video signal processing main control circuit is connected with the output end of the video signal input interface 1, the output end of the video signal input interface 2, the output end of the video signal input interface 3 and the output end of the control key, and the output end of the video signal processing main control circuit is connected with the input end of the video signal display device. A main control chip U18 is arranged in the video signal processing main control circuit, and the model of the main control chip U18 is LQFP64. The beneficial effects of the utility model are that the system can achieve the automatic screening of an optimal video signal source from multiple paths of video signal sources, and the switching display of the optimal video signal source.

The embodiment of the invention provides a depth video frame interpolation method and device based on occlusion perception and dynamic optimization, a storage medium and electronic equipment, and relates to the field of video frame interpolation, and the method comprises the steps: obtaining two frames of target images to be interpolated, a pre-calculated occlusion image and an optional reference intermediate frame, carrying out normalization and edge filling preprocessing on the target image and the shielding image; based on the preprocessed target image and the potential spatial dimension of the diffusion model, initializing random noise capable of being subjected to gradient optimization as a potential mark; designing an iterative optimization framework, and performing dynamic optimization on the potential mark by using the preprocessed target image and the shielding image; and inputting the optimized potential mark into a diffusion model to generate a final intermediate frame, and restoring the intermediate frame to the size of the original target image through reverse filling operation to complete frame insertion. According to the method, the core problem that blurring and artifacts are easy to generate when shielding areas and complex motion scenes are processed in the prior art is solved.

The application relates to the technical field of detection and verification, and discloses a precious metal recovery detection process verification method and system. The method comprises the following steps: synchronizing a video stream and a background event timestamp and performing frame interpolation to generate a time reference video stream; target detection is performed on materials according to the time reference video stream to obtain local trajectory information; cross-camera splicing and smoothing processing are performed on the local trajectory to obtain a cross-camera global trajectory; for a frame-out interval in the cross-camera global trajectory, material identity continuity is evaluated through appearance and position prediction, and a complete space-time path is completed; picture coordinates and a timestamp of the material at the time of a business event are extracted based on the complete space-time path; and a weighing and testing record with the nearest timestamp in the background is matched according to the picture coordinates and the timestamp, and is bound with a material identity mark to realize associated verification of the video and the background data. The method can accurately and reliably associate and check the consistency between a target in real-time video and background records in a complex and changeable recovery site.

The application provides a kind of adaptive frame rate video conversion method, system, equipment and medium.Therein method includes: obtaining the proportional relationship between PixelClk frequency and frame rate when resolution and timing standard are unchanged;Using the proportional relationship, all timing signal waveforms containing pixel data are sampled and stored by low-speed clock domain pixel clock PixelClk1;Signal waveform reconstruction is carried out on the stored signal data by high-speed clock domain pixel clock PixelClk2;Through signal waveform reconstruction, the frame rate of the converted video timing signal is increased to the refresh rate supported by the standard display under the condition that the resolution and timing standard are unchanged.The application is aimed at non-standard dynamic frame rate video, and through the bridge type efficient conversion across clock domains, the converted display interface video timing signal is adapted to the timing standard of standard display, and adaptive frame rate video conversion is realized based on general FPGA.

The utility model provides a high-frame-rate monitoring camera shooting control circuit for an automobile exhibition, which comprises a voltage regulation power supply circuit, a monitoring camera shooting main control circuit, a camera shooting mode switching circuit, a camera shooting data storage circuit and an optical signal acquisition circuit, the output end of the voltage adjusting power supply circuit is in power supply connection with the monitoring camera shooting main control circuit and the camera shooting data storage circuit, the input end of the monitoring camera shooting main control circuit is connected with the output end of the camera shooting mode switching circuit and the output end of the camera shooting data storage circuit, and the output end of the monitoring camera shooting main control circuit is in control connection with the optical signal acquisition circuit. The optical signal acquisition circuit can acquire optical signals. The beneficial effects of the utility model are that the system can achieve the high-frame-rate monitoring camera shooting as high as 60 frames, and guarantees that the monitoring camera shooting can still shoot clear pictures when an automobile runs on an automobile exhibition.

To generate a high-quality reduced image.SOLUTION: A reducing apparatus 1 includes: a frequency decomposition unit 10 which performs frequency band decomposition in a spatial direction until each frequency band becomes equal to or lower than a spatial resolution of a reduced image with respect to an original image, to generate a frequency band component; an encoding information extraction unit 13 which performs encoding processing on the reduced image to extract encoding information; a degeneration processing unit 14 which performs degeneration processing on the frequency band component using the encoding information to generate a degenerated frequency band component; a frequency reconfiguration unit 15 which performs frequency reconstruction on the degenerated frequency band component to generate a degenerated image of the same size as the original image; and a spatial resolution reduction unit 16 which generates a reduced image of the degenerated image. The degeneration processing unit 14 sets a degeneration rate of an encoding block position where a quantization parameter is equal to or larger than a threshold, in a frequency band exceeding a lowest frequency band and having a resolution equal to or lower than the spatial resolution of the reduced image, so as to become higher than a degeneration rate of the encoding block position where the quantization parameter is below the threshold.SELECTED DRAWING: Figure 1

The invention provides a display device and a media data processing method. A media format detector and a demultiplexer are integrated into an automatic demultiplexer module, so that a media data reading module and the automatic demultiplexer module have a one-to-one correspondence relationship, and on the basis of the correspondence relationship, format detection is not needed after the media data reading module reads the media data, so that the media data reading efficiency is improved. Media data can be directly transmitted to the automatic demultiplexer module to be analyzed and processed. The media format detector and the demultiplexer are integrated in the automatic demultiplexer module, so that the media format detector and the demultiplexer can read the media data from the shared buffer area corresponding to the automatic demultiplexer module, and therefore, in the processing process of the media data, the number of independent modules is reduced, and the processing efficiency of the media data is improved. According to the embodiment of the invention, the running memory fixedly occupied by the independent module during running can be effectively reduced, and only one media data needs to be read once and only one piece of media data needs to be cached, so that the occupation of the running memory can be effectively reduced.

The invention discloses a video signal testing system and method based on CRC pixel analysis. The system comprises a video signal analysis module, a hardware circuit and a computer end, the video signal analysis module is used for receiving a video signal sent by a computer end, converting the video signal into a standard RGB signal and sending the standard RGB signal to the hardware circuit; the hardware circuit is used for carrying out time sequence reforming on the RGB signal and carrying out CRC value calculation on the RGB signal in a DE effective period; and the computer end is used for sending a video source signal to the video signal analysis module and judging the quality of the video source signal according to the received CRC value. According to the method, the video source quality is judged by adopting a hardware acceleration CRC checking method, so that the detection efficiency of the video quality is greatly improved.

A display control method, a display control device and a smart terminal, the method comprising: acquiring a source video of a first refresh rate (S100); based on two logical chips, converting the refresh rate of the source video to obtain a target video of a second refresh rate (S200), wherein the first refresh rate is less than or equal to the second refresh rate; inputting the target video into a display module and displaying through the display module (S300). Based on two logical chips, the source video of a low refresh rate can be converted into a video of a higher refresh rate, so that the user can watch a more smooth and clear video picture.

A mechanism for processing video data is disclosed. The mechanism includes determining a referencing track contains a 'supm' track reference, which indicates video in the referencing track is usable as a supplementary video, and that a corresponding main video can be contained in a referenced track. A conversion is performed between a visual media data and a bitstream based on the 'supm' track reference.

The invention provides a video frame extraction method and a related device, and relates to the technical field of video processing. The video frame extraction method comprises the following steps: acquiring a first video clip; wherein the first video clip is a video clip collected by a vehicle-mounted camera used after a vehicle sentry function is started; determining an image region area occupied by the motion change amplitude of the moving target in each first video frame; sorting according to the image region area occupied by the motion change amplitude of the moving target in each first video frame from large to small; and extracting a second video frame arranged in the first N positions, and taking the second video frame as a final extraction result of the video frame. According to the technical scheme provided by the invention, the problem of insufficient video frame extraction of a uniform frame extraction algorithm in a transient dangerous action scene in the prior art can be solved.

The invention discloses a television end transplantation application program scene rendering method, device and equipment based on a YTS engine, and relates to the technical field of television end operation transplantation application programs. According to the main design concept, initial weight values corresponding to different scene types are set in advance based on statistical data; before rendering the current scene, acquiring scene type information and endowing the scene type information with the initial weight value; judging whether the current scene contains a to-be-rendered established element or not to dynamically decide: adjusting an initial assignment result or setting a display residence duration; and finally, configuring a corresponding frame rate based on the current weight value, executing a scene rendering task, and optimizing a rendering frame rate for keeping a current scene display state in combination with the display residence duration after rendering is completed. By reasonably deploying the real-time rendering computing power of the television end, the abnormal display probability when the television end processes the transplanted application program is reduced, so that smooth operation of the transplanted application program on the television equipment is ensured.