63 results about "Digital multimedia" patented technology

The invention relates to the technical field of multimedia regulation and control, in particular to a regulation and control system for a digital multimedia exhibition hall, which comprises a multimedia content control module for managing a digital screen, a projector and audio multimedia in the exhibition hall in real time and realizing dynamic switching of display contents and multimedia linkage; the environment regulation and control module is responsible for controlling light, sound, temperature and humidity in the exhibition hall, synchronously adjusting the exhibition hall environment and exhibition content, monitoring environment parameters in real time by using an intelligent sensor, providing an intelligent adjustment scheme, and monitoring behaviors of visitors in real time by using a sensor, a camera and intelligent bracelet equipment. The digital multimedia exhibition hall regulation and control system integrates an intelligent control technology, audience behavior monitoring and data analysis, and has the functions of real-time regulation and control, dynamic interaction, data feedback and optimization and the like. Through the unified central control system, the exhibition hall can intelligently adjust the multimedia content and environment according to the actual exhibition content and the behaviors of visitors, and the efficient and flexible exhibition effect is achieved.

The invention discloses a central control system of a digital multimedia exhibition hall, and relates to the technical field of central control systems, a time-space correlation analysis module constructs a fault propagation probability graph of exhibition hall equipment and audience behaviors, and a coupling degree analysis module verifies a cross-layer causal relationship by using a directional disturbance injection method based on the fault propagation probability graph; a coupling degree index is fitted by analyzing an incidence matrix of a resource scheduling operation and a fault propagation chain, a dynamic priority decision module fits a fault propagation cost gradient, the coupling degree index and the fault propagation cost gradient are input into a priority function, and a collaborative priority of a short-term suppression action and a long-term eradication action is calculated. And the strategy execution module calls the execution sequences of the two types of actions through the interface of the central control platform, and executes corresponding strategy actions. The central control system is not only high in dynamic adaptive capacity, but also capable of responding to audience demands and equipment state changes in real time, improving exhibition management efficiency and enhancing immersive experience of audiences.

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 relates to a digital content ownership traceability and ethical supervision method and system, and belongs to the field of digital content ownership management and ethical governance. According to the method, before digital multimedia content is publicly published, a digital watermark technology, a computer vision technology, an ethical risk identification technology and other technologies are used for completing three operations of digital watermark embedding, digital fingerprint generation and ethical risk rating, and results of the three operations and related ownership information are recorded in a data center; when ownership query, source tracing or risk control supervision is needed, ownership identification and source tracing can be carried out through combination of a watermark extraction mode and a fingerprint comparison mode; and when the embedded digital watermark cannot be extracted after being maliciously attacked and damaged, the ownership information can be quickly positioned through the digital fingerprint. The system comprises a server side, a management side and a user side, the user side comprises an SDK client side and a web user side.

The invention relates to the technical field of multimedia processing, and particularly discloses a dynamic interaction control method and system for digital multimedia equipment, which is characterized in that the interaction effect between multimedia equipment is optimized through real-time monitoring and intelligent adjustment, and the edge data transmission speed and updating frequency are acquired in real time by using intelligent monitoring modules arranged in the equipment; and analyzing the data by applying fast Fourier transform and Haar wavelet transform to evaluate the stability and synchronization precision of data transmission, constructing a comprehensive feature vector by a data transmission anomaly feature value and an update frequency change feature value calculated based on an analysis result, and inputting the comprehensive feature vector into a random forest model to predict an interaction effect score, therefore, whether the current interaction state is stable or not is judged, once the unstable state is detected, the PID controller is adopted to automatically adjust the edge data transmission speed and the updating frequency, and rapid recovery and optimization of the system are achieved.

The invention discloses an AIGC deep pseudo detection method based on synchronous coupling of double cranial nerves, and the method comprises the following steps: S1, designing a double-person super-scanning experiment normal form under the stimulation of a digital multimedia material, synchronously collecting double-person electroencephalogram signals, and constructing a double-person electroencephalogram database generated by real and AIGC under the stimulation of the multimedia material; s2, constructing a depth separable neural network based on an attention mechanism; and S3, filtering the collected double electroencephalogram signals to obtain four signals with different frequency bands, calculating a phase lock value PLV, stacking to obtain a three-dimensional vector, inputting the three-dimensional vector into the deep separable neural network based on the attention mechanism, and predicting the authenticity of the content of the multimedia stimulation material. The invention further discloses an AIGC deep pseudo detection system based on synchronous coupling of double cranial nerves. According to the method, the information gain and neural synchronization algorithm of double brain electricity are fully utilized, the synchronous response of double brain nerves is analyzed, and AIGC deep pseudo detection inspired by a neural coupling mechanism is achieved.

The invention belongs to the technical field of multimedia central control, and discloses a central control system of a digital multimedia exhibition hall. Collecting an environment data set, wherein the environment data set comprises temperature data, humidity data and illumination data; monitoring and controlling various modules in the digital multimedia exhibition hall; analyzing the feedback data set to obtain a system evaluation value; processing the environment data set to obtain an environment evaluation result; the environment data set is analyzed in combination with the exhibition point distribution data to obtain an experience upgrading report, and the experience upgrading report comprises a reduction report, a normal report and an enhancement report; the system evaluation value and the environment evaluation result are processed respectively, a system test result and a comfort evaluation result are obtained, and generally, the method has the remarkable advantages of high audience evaluation accuracy, high exhibition hall system test capability and great exhibition hall data effect.

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.

1. Name of the Design Product: Mobile Media Vehicle. 2. Use of the Design Product: Digital multimedia advertising vehicle for outdoor advertising. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

The invention discloses an immersive digital interactive virtual experience system based on model linkage, which adopts an interactive exhibition mode of combining a plurality of model product real objects and digital multimedia to meet the requirements of different visitors on exhibit exhibition forms and realize immersive digital interactive virtual experience. The operability and adjustability of the experience system are remarkably improved, during exhibition, manual adjustment of exhibition items and exhibition content can be performed through the control input module, association between the experience system and visitors' film watching conditions, scene background noise and brightness information is further performed, and during use, the experience effect is improved based on real-time observation of background information. The experience system can automatically respond to the system and adjust operation parameters of modules of the system, so that the video audio track can keep a comfortable hearing feeling, model products and video pictures are clear, and discomfort of visitors is avoided. Therefore, multi-model linkage and product multi-sense immersive digital interaction experience is realized.

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 utility model relates to the technical field of multimedia equipment, and discloses a digital multimedia conference system which comprises a supporting frame, a mounting plate is fixedly connected to the upper portion of the rear side of the supporting frame, a supporting plate is fixedly connected to the upper portion of the right front side of the mounting plate, and a first motor is fixedly connected to the upper portion of the supporting plate. The output end of the first motor is fixedly connected with a two-way screw, first bevel gears are fixedly connected to the outer sides of the two ends of the two-way screw, threaded sleeves are in threaded connection to the outer sides of the two ends of the middle of the two-way screw, a protection assembly is arranged on the rear sides of the threaded sleeves, and a cleaning assembly is arranged on the upper portion of the front side of the supporting frame. According to the multimedia conference system, through cooperation of the lifting column, the rack plate, the supporting column, the fixing plate, the second motor, the rotating shaft, the first gear and other structures, the multimedia conference system can meet the conference requirements of different heights, and the practicability of the multimedia conference system is improved.

1. The name of this design product: Multifunctional Exhibition Hall. 2. Purpose of this design product: This design product is used in digital multimedia exhibition halls. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The bottom view is not common, so it is omitted.

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 invention provides a Chinese traditional clothes makeup culture experience platform based on big data, a data acquisition and processing module is used for collecting, processing and storing data, perfectly integrates traditional clothes and makeup information of each dynasty from the first to the clear and clear periods, and stores the information in a constructed special information database; the visual display module is used for displaying data in a webpage form, so that the costume makeup knowledge popularization and one-key dress changing game functions are realized; knowledge science popularization is divided into a costume block and a makeup block, all the blocks are classified according to the dynasty sequence, and a user can enter a detail page to know specific information such as the name, the source dynasty, the use ethnic group, the style type and the historical origin of the costume or the makeup; and the user can upload a personal photo and select preferred clothes to complete automatic clothes changing through one-key clothes changing. The Chinese traditional clothing makeup culture experience platform uses big data and digital multimedia technologies to realize permanent storage and utilization of traditional clothing makeup in a data form without space-time limitation, and a traditional clothing and makeup database is fully played as a data support for creative conversion and innovative development of traditional culture. And the user experience is optimized through the reloading game, and the interactivity and immersion which are lacked in online experience are increased.

The invention relates to the technical field of exhibition hall control, in particular to a digital multimedia exhibition hall interactive display control system, which comprises the following steps: acquiring coordinates, equipment types and the number of associated equipment groups of interactive equipment in an exhibition hall, and recording the working state of each interactive equipment; defining a state coordination rule of the associated equipment group in each exhibition hall in combination with the working logic of the interaction equipment; in combination with the updating sequence and updating time of the working state of the associated equipment group after the interaction equipment triggers the operation instruction, determining a cooperative operation list of cooperative work of multiple equipment in each exhibition hall; mapping the collaborative operation list to a plurality of interactive devices, and determining a visiting path corresponding to the collaborative operation list according to the state category of the associated device group after each mapping; displaying each interaction device according to a visiting path corresponding to the collaborative operation list; and the accuracy and efficiency of cooperative control of the exhibition hall are improved.

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.

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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.

A computer-implemented method includes capturing visual data of an environment using an image sensor of an electronic device and non-visual data of the environment using one or more non-image sensors of the electronic device. Feature descriptors of one or more objects in the environment are generated using the visual data of the environment and the non-visual data of the environment. A map of the environment is generated using the feature descriptors of the one or more objects. One or more virtual objects are anchored to at least one of the objects using the map. The visual data, the non-visual data, and the map are combined in a digital multimedia container file. The digital multimedia container file is stored on the electronic device or on another electronic device connected to the electronic device.

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.

1. The name of this design product: digital multimedia speaker. 2. Purpose of this design product: used for playing audio, etc. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention relates to the technical field of digital multimedia culture walls, in particular to an interaction method and system for a digital multimedia culture wall, and the method comprises the steps: obtaining real-time video data, and converting the video data into a frame image; based on a target detection and tracking model, detecting the frame image to obtain a tourist coordinate and a unique ID; based on a preset region of interest, obtaining the number of tourists in the region of interest and the average staying time and watching time of the tourists, and calculating to obtain a region behavior interest value; based on the residence time, the watching time and the number of clicks of each tourist in the region of interest, obtaining an individual behavior interest value through weighted calculation; based on the regional behavior interest value and the personal behavior interest value, different levels of display are carried out, and the method has the advantage that personal interaction and multi-person interaction are better considered.

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.