Abstract: The embodiments of the present application provide a navigation method, device and system. The method is applied to a server. The method includes: receiving current position feature information sent by a mobile terminal, determining a position of an area matching the current position feature information based on the current position feature information and a database stored in the server, and taking the position as an initial position; determining a position of one empty area of the areas as a target position based on position information corresponding to respective areas and correspondence relationship between identification information of the respective areas and the respective feature information currently stored in the database; and determining a first route from the initial position to the target position and displaying the first route on an electronic map of the mobile terminal.

Abstract: Provided is a system for cross-network data storage. A gateway is used for connecting a first network and a second network; a client sends an address acquisition instruction and a first IP address and port number of a coder to the gateway, acquires a second IP address and port number of the coder from the gateway, and sends a stream acquisition instruction and a first IP address and port number of a PCNVR to the gateway; the coder receives the address acquisition instruction and sends the second IP address and port of the coder to the gateway; and the PCNVR parses the stream acquisition instruction to acquire the second IP address and port number of the coder, acquires a code stream from the coder via the second network, and stores same. Also provided is a method for cross-network data storage. The method and system of the present invention can be adopted to reduce network bandwidth pressure of an external network, and improve the stability of data storage.

Abstract: Disclosed is a method and device for transmitting video data. The method includes allocating a traffic to each piece of data to be transmitted at interval of a preset duration, and when a traffic that needs to be used by the data to be transmitted is larger than the traffic allocated to it, transmitting a part of the data to be transmitted using this allocated traffic, and transmitting the remaining data after a next traffic allocation is performed. By allocating traffic, the traffic for transmission can be controlled, thereby reducing possibility of network congestion caused by relatively large bandwidth being used for transmitting video resources. If the traffic that needs to be used by the data to be transmitted is larger than the traffic allocated to it, only part of the data is transmitted, and the remaining of the data will not be transmitted until traffic is allocated again.

Abstract: Embodiments of the present application disclose a method and a device for synthesizing depth images, which relate to the technical field of image processing.

Abstract: Embodiments of the present application disclose a video playback method and apparatus, which relate to the field of video communication technologies. The method includes: receiving a data obtaining request for a video to be played back sent by a client; estimating a current data transmission speed according to historical data transmission speeds; selecting a target video frame discarding scheme from preset video frame discarding schemes, according to the current data transmission speed and a theoretical data transmission speed corresponding to a preset video frame discarding scheme, wherein the theoretical data transmission speed is determined according to the multiplied speed for video playback; and performing discard processing on video data of the video to be played back according to the target video frame discarding scheme, and sending to the client the video data that has been subjected to the discard processing, so that the client plays back the video to be played back.

Abstract: Embodiments of the present application provide a method and device for playing a video. The method is applicable in a video monitoring system and includes: obtaining a video playing request carrying target time identification information; transferring and storing video index information buffered in a buffer area of the video monitoring system to a target storage area of the video monitoring system so as to update an index information packet stored in the target storage area; and playing a video file corresponding to the target time identification information based on the updated index information packet. It can be seen, in the embodiment, the video monitoring system allows playing the corresponding video file according to the user's video playing request, so as to meet the user's needs and thus provide a better user experience.

Abstract: The present invention relates to the application field of computer networks, and disclosed are a method for processing and loading a web page supporting multiple languages and a system thereof, so as to reduce time and cost of labor investment when some language is added or modified, save storage capacity of a web page server, increase the speed of page loading and translation rendering, and reduce the redundancy of a translation file set. The present invention is based on a tree-shaped translation file set, where each hypertext markup language (HTML) has a corresponding translation file.

Abstract: Embodiments of the present application disclose a method, an apparatus and an electronic device for transmitting data, which relate to technologies of data transmission and storage and can reduce network resource overhead and framing delay. The method for transmitting data includes: dividing a data frame to be transmitted into one or more payload packets having a predetermined length; adding a real-time transport protocol header for each payload packet, and marking a padding bit in the real-time transport protocol header as padded; in the padding field corresponding to the padding bit, marking a data type bit, a frame start bit, a frame end bit and a payload packet type bit for the payload packet to obtain an encapsulated real-time transport protocol packet, and transmitting the encapsulated real-time transport protocol packet. The present application is applicable to the transmission of the RTP encapsulated data.

Abstract: A method and an apparatus for storing, reading, and displaying a plurality of multimedia files are disclosed.

Abstract: The present application discloses a method and an apparatus for processing traffic road information. The method includes: obtaining acquired traffic parameters of a first target road section and/or the reliability of the traffic parameters within a first preset period; selecting a first fuzzy rule matrix table from a pre-stored set of fuzzy rule matrix tables based on the number of the traffic parameters and/or the reliability of the traffic parameters of the first target road section; determining the membership degree of each type of traffic conditions contained in the first fuzzy rule matrix table by calling a membership function; comparing the membership degrees of all types of traffic conditions contained in the first fuzzy rule matrix table to determine the real-time traffic condition for the first target road section within the first preset period.

Abstract: The present disclosure provides a video stream storing method and apparatus, and reading method and apparatus. The method comprises: splitting an acquired video stream into I-frame data and non-I-frame data corresponding to the I-frame data, wherein the non-I-frame data contains data in the video stream other than the I-frame data; acquiring a storage address allocated by a data storage server for the non-I-frame data, and storing the non-I-frame data in a storage space of the data storage server to which the storage address points; adding the storage address to the I-frame data; and storing the I-frame data, which contains the storage address, to the data storage server. The present application solves the technical problem of low video stream storage efficiency in the prior art due to the fact that the video stream is stored frame by frame in a sequence in which the video stream is sent.

Abstract: The present application discloses a method and system for detecting image delay, the method comprises: for any one of image frames in an incoming data stream and a data packet of image delay detection for the image frame, displaying the image frame and analyzing the data packet; and obtaining a detected image delay Tdelay of the image frame according to a reference globe time T for collecting the image frame obtained by analyzing the data packet and current display time Tdisplay of the image frame. In the present application, delay detection data are identified in an image frame and the collection time is based on the time of a display device, which enables to provide an automatic and accurate method and system for accurately measuring camera delay without the need of manual operation.

Abstract: The present application discloses a system for video storage and method for video data transmission based on the same. The system for video storage in the present application includes a first control node, a second control node and at least two storage nodes. Each control node includes a signal agent module, and each storage node includes a data agent module. The second control node is configured for starting the signal agent module of the second control node after determining that the first control node is unavailable. The signal agent module of the second control node is configured for transmitting an instruction to the data agent module of a designated storage node based on a service request through a preset virtual IP address. The data agent module of the designated storage node is configured for transmitting video data to the third-party platform according to the received instruction and based on the predetermined signal protocol.

Abstract: A method and a device for adjusting a 3D model are disclosed. The method includes: fusing a 2D video and a 3D model of a target monitored area to generate a mesh model (S101); determining whether each set plane in the mesh model is even based on the location of a respective reference plane in the 3D model (S102); for each set plane that is uneven, referred to as a target set plane, selecting an uneven point in the target set plane as a mark point (S103), and generating a virtual plane based on the mark point and the reference plane corresponding to the target set plane (S104); and adding the virtual plane to the 3D model, and for the 2D video, saving the 3D model in which the virtual plane is added (S105). With the embodiments of the present application, operations for the uneven planes improve the effect of the fusion of a video and a 3D model. There is no need to modify a 3D scene model, which reduces the labor cost and time cost of modifying the 3D scene model.

Abstract: The disclosure discloses a method, device and system for target tracking. Wherein, the method for target tracking includes that: Global Positioning System (GPS) information of a target object monitored by tracking equipment is acquired (S102); Pan/Tilt/Zoom (PTZ) coordinate information corresponding to the GPS information of the target object is obtained according to a pre-stored conversion relationship between GPS information and PTZ coordinate information (S104); and the tracking equipment is regulated to control the tracking equipment to monitor the target object according to the PTZ coordinate information of the target object (S106). The problem of inaccuracy of a monitoring result of a method for monitoring a tracking target in the conventional art is solved.