25 results about "Digital multimedia" patented technology

The invention discloses an exhibition hall display method and device based on digital multimedia, relates to the technical field of digital multimedia, and discloses an exhibition hall display method and device based on digital multimedia, which are characterized in that the positions of audiences are acquired in real time, associated device subsets are matched, and cooperative control parameters are generated in combination with environment data and attention data; the multi-device cooperative display strategy is dynamically adjusted, the multimedia cooperative control precision and the display effect are improved, and the exhibition viewing experience of audiences is improved.

The invention provides a live broadcast goods carrying scene optimization method and system combined with digital multimedia, and relates to the technical field of digital multimedia, and the method comprises the steps: firstly obtaining the cognitive association data of a live broadcast goods carrying scene, including the commodity cognitive multimedia content, the user cognitive behavior record and the commodity information set; then, based on the cognitive association data, establishing a corresponding relationship between the user cognitive behavior record and the commodity cognitive multimedia content, and generating a cognitive rhythm adaptation sequence; user cognitive behavior records and cognitive stage entries are matched in real time in live broadcast, and the commodity cognitive multimedia content is adjusted according to the adjustment rule parameter set; and collecting user subsequent behavior data during the adaptation period, adjusting the cognitive rhythm adaptation sequence after correlation analysis, generating a digital multimedia cognitive adaptation strategy, and applying the digital multimedia cognitive adaptation strategy to subsequent live broadcast. The live broadcast goods carrying effect and the user experience can be improved.

The invention provides a camera PRNU fingerprint extraction method and system based on high-frequency enhancement, and belongs to the technical field of digital multimedia evidence collection and image processing. The method comprises the following steps: constructing a fingerprint extraction network based on a Swin Transform; performing unsupervised training by using patch-level fingerprints to compare learning loss, and pulling close the fingerprints of the same equipment and pushing away the fingerprints of different equipment; designing high-frequency enhancement module loss, generating a high-frequency mask by using discrete wavelet transform, and guiding a network to focus a high-frequency region related to a fingerprint; introducing frequency domain fingerprint regularization loss to constrain uniform distribution of fingerprint power spectrum density; jointly optimizing the loss training network; and during reasoning, extracting normalized cross-correlation of the query image and the reference fingerprint of the candidate equipment for identification. According to the method, the recognition accuracy exceeding 90% can be achieved only through three common images, semantic noise interference is effectively restrained, fingerprint robustness is improved, and the method can be widely applied to scenes such as law enforcement evidence obtaining, copyright protection and safety monitoring.

The invention provides a video clip automatic editing and splicing method and system applied to digital multimedia, and relates to the technical field of digital multimedia, and the method comprises the steps: firstly obtaining a to-be-edited video clip set, extracting a narrative logic anchor point for each to-be-edited video clip unit, and constructing an overall image semantic flow; generating a splicing adaptation rule for adjacent segment units, and performing transition fusion processing to obtain a video segment sequence; and finally, performing integration processing on the video clip sequence with the fused transition effect according to the arrangement sequence of the overall picture semantic stream to obtain a digital multimedia video after complete editing and splicing, thereby accurately mastering the video narrative logic, constructing a coherent picture semantic stream, and improving the video quality. The spliced video is good in narrative coherence and picture consistency, and the efficiency and quality of video editing and splicing are improved.

The invention provides an image-text typesetting intelligent optimization method and system combined with digital multimedia, and relates to the technical field of digital multimedia, and the method comprises the steps: firstly obtaining a to-be-optimized image-text set, and displaying environment parameters and audience behavior intention data in real time; performing space-time collaborative modeling on the image-text units, and establishing an image-text collaborative model; constructing a dynamic adaptive typesetting engine comprising a plurality of modules; performing typesetting parameter dynamic calculation on an image unit and a text unit in the digital multimedia image-text set to be optimized by applying the dynamic adaptive typesetting engine to generate an initial typesetting scheme, and adjusting to obtain an intermediate scheme; after the intermediate scheme is deployed, the engine is driven to evolve continuously in combination with real-time data, the target image-text typesetting optimization scheme is generated and output for display, typesetting can be optimized dynamically according to the environment and audience requirements, and the display effect and the user experience are improved.

The invention relates to a digital multimedia evidence obtaining method and device. The digital multimedia evidence obtaining method comprises the steps that a multi-modal knowledge graph is constructed based on multi-modal media samples, and the multi-modal media samples comprise image frames, audio signals and text subtitles; identifying potential forgery risk points from the multi-modal media sample, and generating a forgery task graph for the potential forgery risk points; performing multi-modal feature extraction on the multi-modal media sample based on the forgery task graph to obtain a multi-granularity forgery clue set; structuring the multi-granularity forged clue set into knowledge entries; chain logic reasoning is carried out based on the multi-modal knowledge graph and the knowledge entries, and cross-modal consistency scores are calculated to generate a reasoning tree; determining a final forgery credibility score based on the confidence of each node in the inference tree; and based on the final forgery credibility score, determining whether forgery content exists in the multi-modal media sample. With the adoption of the method and the device, high-precision and high-robustness forged content identification can be realized.

The application provides a camera PRNU fingerprint extraction method and system based on high-frequency enhancement, and belongs to the technical field of digital multimedia forensics and image processing. The method comprises the following steps: constructing a fingerprint extraction network based on a Swin Transformer; performing unsupervised training by using a patch-level fingerprint contrast learning loss, narrowing the fingerprints of the same device and widening the fingerprints of different devices; designing a high-frequency enhancement module loss, generating a high-frequency mask by using a discrete wavelet transform, and guiding the network to focus on the high-frequency area related to the fingerprint; introducing a frequency domain fingerprint regularization loss to constrain the uniform distribution of the power spectral density of the fingerprint; jointly optimizing the network by using the above losses; and identifying by extracting the normalized cross-correlation between the query image and the candidate device reference fingerprint during inference. The application can achieve an identification accuracy of more than 90% by using only 3 ordinary images, effectively suppresses semantic noise interference, improves the robustness of the fingerprint, and can be widely applied to law enforcement, copyright protection, security monitoring and other scenes.

The invention provides a catering recommendation method and system applied to a digital multimedia online platform, and relates to the technical field of digital multimedia online platforms, and the method comprises the steps: firstly obtaining user catering interaction intention data and catering content supply time sequence data in the platform; constructing a user catering intention evolution model based on the user catering interaction intention data and a catering content supply time ordinal number in the platform, and forming an intention evolution link; establishing an intention supply time sequence adaptation logic in combination with the model and supply time sequence data; screening contents from a platform catering content library according to the adaptation logic to generate a dynamic recommendation scheme; and pushing the dynamic recommendation scheme to a user interface, capturing new interaction intention data, and fusing original data to update a model and adaptive logic, so that the dynamic change of the user intention can be accurately grasped, and the consumption experience of the user and the competitiveness of the platform are improved in combination with dynamic recommendation of supply time sequence characteristics.

The application provides a catering recommendation method and system applied to a digital multimedia online platform, relates to the technical field of the digital multimedia online platform, and first acquires user catering interaction intention data and platform internal catering content supply time sequence data; constructs a user catering intention evolution model based on the user catering interaction intention data and the platform internal catering content supply time sequence data, forms an intention evolution link; establishes intention supply time sequence adaptation logic in combination with the model and the supply time sequence data; screens content from a platform catering content library according to the adaptation logic to generate a dynamic recommendation scheme; pushes the dynamic recommendation scheme to a user interface and captures new interaction intention data, integrates the original data to update the model and the adaptation logic, so that the dynamic change of the user intention can be accurately grasped, dynamic recommendation is combined with supply time sequence characteristics, and the user consumption experience and platform competitiveness are improved.

This application provides a method and system for intelligent retrieval of multimedia materials based on digital multimedia, relating to the field of digital multimedia information processing technology. First, multimedia materials are aggregated according to the semantic similarity of their scenes to form scene semantic clusters, with each material carrying a scene semantic tag. Then, based on the dynamic changes in scene semantics between the user's current search request text and historical search request texts, a scene semantic flow for the user's search request is constructed. Next, a mapping between the core scene semantics of the material cluster and the scene semantics of the flow unit is established and adapted for filtering, yielding initial adaptation results. The search priority is adjusted by combining scene semantic association strength and time influence weighting. Finally, the enhanced adaptation results are pushed to the user's search interface in priority order. This invention improves retrieval efficiency and accuracy, and optimizes the user experience.

The application provides a multi-device cooperative interaction method and system for digital multimedia, relates to the technical field of digital multimedia processing, and first analyzes user interaction requirements of to-be-processed digital multimedia content, and disassembles the requirements into presentation, transmission and operation requirement dimensions; capability information of to-be-cooperated devices is collected to form a device capability list; an adaptation degree is calculated according to the requirement disassembly result and the device capability list, a cooperative interaction link is constructed; operation instructions are issued according to the cooperative interaction link, and interaction result data is acquired; the adaptation degree calculation standard and link node configuration are adjusted based on the interaction result data, and dynamic optimization is realized. The application comprehensively considers user requirements and device capabilities, realizes efficient cooperation of multiple devices, and improves the digital multimedia processing experience.

The invention provides an illegal content intelligent identification method and system for digital multimedia, and relates to the technical field of digital information processing, and the method comprises the steps: obtaining to-be-identified digital multimedia content and propagation traceability information thereof, extracting the feature imprint of each transmission node from the original data and modification records of the content, and generating a set; and tracking an evolution relationship of the adjacent node feature mark set to form a track, and verifying whether the difference feature marks are illegal or not by combining the transmission object information to obtain an identification result. And generating a disposal scheme containing a content blocking link identifier and a content modification tracing instruction based on the identification result, and sending the disposal scheme to each propagation link management terminal. According to the method, the digital multimedia content and the propagation process thereof are comprehensively considered, illegal content can be accurately identified, propagation can be effectively controlled, and digital information environment safety is maintained.

The invention provides a multi-device cooperative interaction method and system for digital multimedia, and relates to the technical field of digital multimedia processing, and the method comprises the steps: firstly analyzing the user interaction demands of to-be-processed digital multimedia contents, and disassembling the user interaction demands into presentation, transmission and operation demand dimensions; acquiring capability information of to-be-coordinated equipment to form an equipment capability list; calculating the degree of adaptation according to the demand disassembly result and the equipment capability list, and constructing a collaborative interaction link; issuing an operation instruction according to the collaborative interaction link, and obtaining interaction result data; and adjusting an adaptation degree calculation standard and link node configuration based on the interaction result data to realize dynamic optimization. According to the method, user requirements and equipment capabilities are comprehensively considered, multi-equipment efficient collaboration is realized, and digital multimedia processing experience is improved.

The application provides a video segment automatic clipping and splicing method and system applied to digital multimedia, relates to the technical field of digital multimedia, and first acquires a video segment set to be clipped, extracts a narrative logic anchor point for each video segment unit to be clipped, and constructs an overall picture semantic flow; generates a splicing adaptation rule for adjacent segment units, performs transition fusion processing to obtain a video segment sequence; finally, the video segment sequence with the fusion transition effect is subjected to integration processing according to the arrangement order of the overall picture semantic flow, a complete digital multimedia video after clipping and splicing is obtained, the video narrative logic can be accurately grasped, a coherent picture semantic flow is constructed, the video after splicing performs well in narrative coherence and picture consistency, and the efficiency and quality of video clipping and splicing are improved.

1. Name of the product in this design: Interactive Projection Portable All-in-One Machine (AR Motion). 2. Intended use of this design: for interactive projection and digital multimedia. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention relates to the field of exhibition hall control technology, specifically a digital multimedia exhibition hall interactive display control system. The system includes: acquiring the coordinates, device types, and number of associated device groups for interactive devices within the exhibition hall; recording the working status of each interactive device; defining state coordination rules for associated device groups within each exhibition hall based on the working logic of the interactive devices; determining a collaborative operation list for multi-device collaboration within each exhibition hall based on the update order and update time of the working status of associated device groups after an interactive device triggers an operation command; mapping the collaborative operation list to multiple interactive devices, and determining the visitor path corresponding to the collaborative operation list based on the state category of the associated device group after each mapping; and displaying each interactive device according to the visitor path corresponding to the collaborative operation list. This improves the accuracy and efficiency of exhibition hall collaborative control.

The application provides a kind of illegal content intelligent identification method and system for digital multimedia, related to digital information processing technical field, obtains to be identified digital multimedia content and its propagation trace information, extracts each transmission node feature mark generation set from content original data and modification record, traces the evolution relationship of adjacent node feature mark set to form trajectory, combines transmission object information to verify whether difference feature mark is illegal, obtains identification result.Based on the identification result, a disposal scheme containing content blocking link identification and content modification trace instruction is generated and sent to each propagation link management terminal.The present application comprehensively considers digital multimedia content and its propagation process, can accurately identify illegal content and effectively control the spread, and maintain the safety of digital information environment.

1. Name of the product in this design: Bottom body of a portable digital multimedia player. 2. Intended use of this design: Overall use: as a portable digital multimedia player; Partial use: as the bottom body of a portable digital multimedia player. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 2. 5. Other situations requiring explanation: The portion shown by the dashed line in the view does not constitute part of the claimed design.

The invention provides an intelligent multimedia material retrieval method and system based on digital multimedia, and relates to the technical field of digital multimedia information processing.The method comprises the steps that firstly, a multimedia material scene semantic cluster is formed according to material scene semantic similarity aggregation, and materials carry scene semantic tags; then, on the basis of a scene semantic dynamic change relationship between the current retrieval demand text and the historical retrieval demand text of the user, constructing a user retrieval demand scene semantic flow; then, association mapping of material cluster core scene semantics and flow unit scene semantics is established, adaptive screening is carried out, and an initial adaptive result is obtained; the retrieval priority is adjusted in combination with scene semantic association strength and time influence weight enhancement processing; and pushing the enhanced adaptation results to a user retrieval interaction interface according to a priority sequence. According to the method, the retrieval efficiency and accuracy are improved, and the user experience is optimized.

The invention discloses a central control system of a digital multimedia exhibition hall, and belongs to the technical field of multimedia central control equipments.The surface of a central control device body is provided with a groove, a display screen and buttons, the inner wall of the groove is provided with a receding groove, the inner wall of the receding groove is provided with a socket, and one side of an opening of the groove is rotationally connected with a protective cover through a hinge; according to the central control system of the digital multimedia exhibition hall, through the arrangement of the protective cover and the opening and the sealing bristles arranged on the protective cover, the receding groove can be sealed conveniently, plugging of the plug and the socket cannot be affected, meanwhile, after the plug is plugged, the sealing bristles facilitate a wire to penetrate out of the protective cover, the sealing effect of the central control system is greatly improved, and the service life of the central control system is prolonged. And through an adsorption plate, a groove and an adsorption block which are arranged on the protection cover, the protection cover is convenient to open and close, the structure is simple, the internal space of the center control device body is not occupied, the size of the center control device body is not increased, and the production cost of the center control device body is not increased.

The application provides a kind of intelligent optimization method and system of picture-text layout combined with digital multimedia, it is related to digital multimedia technical field, first, obtain the picture-text set to be optimized, real-time display environment parameter and audience behavior intention data;Space-time collaborative modeling is carried out to picture-text unit, and picture-text collaborative model is established;Dynamic adaptive layout engine comprising a plurality of modules is constructed;The dynamic calculation of layout parameter is carried out to the image unit and text unit in the digital multimedia picture-text set to be optimized by applying the dynamic adaptive layout engine, and the initial layout scheme is generated, and the intermediate scheme is obtained after adjustment;After deploying intermediate scheme, continuously evolve in combination with real-time data driving engine, generate target picture-text layout optimization scheme and output for display, can dynamically optimize layout according to environment and audience demand, improve display effect and user experience.

This application discloses a data transmission configuration device and method, specifically relating to the field of data transmission technology. The data transmission configuration device includes an on-chip network chip (Chip-on-Chip) and a digital multimedia extender (DME). The Chip-on-Chip is located in a mesh network and is used to transmit data to the DME via the mesh network. The DME is connected to the edge of the mesh network and is used to receive data via the mesh network. The Chip-on-Chip also counts the data transmissions. The count value in the Chip-on-Chip indicates the data transmission priority of the Chip-on-Chip. When the Chip-on-Chip sends a data transmission request to the DME, the count value decreases; when the Chip-on-Chip receives a signal returned by the DME, the count value increases. This solution enables data transmission configuration in a hardware device, resolving network congestion issues.

The invention provides a catering store marketing content generation method and system based on digital multimedia social media, and relates to the technical field of digital multimedia, and the method comprises the steps: firstly collecting a social media user catering interaction behavior dynamic stream and a catering store dish scenarized element library; performing scene intention dynamic derivation on the social media user catering interaction behavior dynamic stream to generate a user real-time catering scene intention sequence; inputting the information into a dish content scene generation model, and calling catering store dish scene element library elements to generate multi-edition scene marketing content; performing social media platform behavior response adaptation on the multi-version scene marketing content; and after screening and optimizing according to the adaptive result, outputting marketing content which can be directly published, thereby accurately mining user demands, generating scenarized marketing content adaptive to different platforms, and improving the marketing effect of a catering store.

The application discloses a kind of mobile digital multimedia equipment development production performance test device, it is related to audio equipment test technical field, including mobile digital multimedia equipment, mobile digital multimedia equipment outside is provided with equipment fixed assembly and sealing structure, the equipment fixed assembly includes equipment bearing platform, vibration adsorption component and programmable DC-DC equipment, the sealing structure includes sealed outer cabin body one, sealed outer cabin body two and sealed outer cabin body three, standard sound source generator is fixedly penetrated on the sealed outer cabin body one, the background noise, vibration, low voltage or low power and other factors that will influence mobile digital multimedia equipment sound redundancy analysis performance and audio spectrum analysis performance are randomly controlled combination, simulate the common working state of mobile digital multimedia equipment, can efficiently comprehensively carry out sound redundancy analysis and audio spectrum analysis to mobile digital multimedia equipment.

1. The name of the design product: digital multimedia sound box. 2. The use of the design product: for playing audio. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.