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71results about How to "Shorten playback time" patented technology

Integrated adaptive jitter buffer

The present invention is a method of correcting packet discontinuities using the steps of:(A) generating a continuous real time data stream from input of media content from a media source comprising packets transmitted by way of a computer packet network to a specific receiving device to establish a transmission portion of an end to end communication,(B) a jitter buffer receiving real time data stream packets from the packet network and temporarily storing at least some of them in the jitter buffer,(C) the jitter buffer operating on multiple fixed length packets to output a first output of a predetermined sequence of said fixed length packets, preferably substantially as they were originally transmitted,(D) a control unit receiving the first output and changing the length of one or more of fixed length packets of the first output to form a second output in response to a detected delay or other discontinuity in the packet sequence,(E) a playout buffer receiving the second output and operating on the stream of original and varied length packets to deliver them to a digital to analog converter (DAC), and(F) transmission of analog output of the DAC to interface devices such as displays, speakers, and mechanical devices for intelligible playout of the media content for appreciation by a human interacting with the interface devices.
Owner:PICO MOBILE NETWORKS

Monitoring video target concentration expression method and system in three-dimensional geographic scene model

ActiveCN110148223AAchieving Condensed ExpressionRealize Fusion Expression3D modellingVideo imageGeographic space
The embodiment of the invention discloses a monitoring video target concentration expression method and system in a three-dimensional geographic scene model, and relates to the technical field of visual fusion, and the method comprises the steps: reading a monitoring video for a period of time, obtaining image coordinates and geographic coordinates of a homonymous point pair, and establishing a mapping relation between a video image and a three-dimensional geographic space; detecting and processing the video target to obtain a video target subgraph and an image space position in the image; reordering the playing time of the video targets; and finally, dynamically mapping the reordered video target subgraphs into a geographic scene model according to the mapping relationship to realize video target concentration expression. The mapping relation between the video target and the geographic scene is established, the expression duration of the video target is compressed, the expression efficiency of the video moving target in the three-dimensional environment is improved, the fusion expression effect of the monitoring video in the geographic scene is enhanced, and great convenience is provided for integrated rapid retrieval and efficient understanding of video geographic scene information.
Owner:NANJING UNIV OF FINANCE & ECONOMICS

Method and device for video concentration

The invention provides a method and a device for video concentration. The method comprises the following steps of obtaining a to-be-concentrated video and analyzing the to-be-concentrated video to obtain an analysis result, wherein the analysis result includes real-time number of people, kinematic velocity of crowd and consistent degree of movement of the crowd, which are corresponding to a video frame; determining a video fragment which needs to keep from the to-be-concentrated video according to the analysis result; and carrying out video coding on the video fragment which needs to keep to obtain concentration video data corresponding to the to-be-concentrated video. According to the method and the device, the real-time number of people, the kinematic velocity of the crowd and the consistent degree of movement of the crowd, which are corresponding to the video frame are obtained through a crowd analysis algorithm, and video concentration process is implemented according to the obtained relevant parameters of the crowd, so that the requirements for occasions with many people and continuous human movement, such as squares or metros, are met, the effective video concentration is carried out on monitoring videos in the occasions, a storage space needed for storing the monitoring videos in the occasions is saved, and the retrieval and playing time for the monitoring videos in the occasions is greatly shortened.
Owner:NETPOSA TECH

Playing method for scrambled program and television equipment

The invention disclosed a playing method for a scrambled program and television equipment. The method comprises the steps that after receiving a power off instruction, the television equipment cachesinteraction resources of a CAM card into a preset memory and controls the CAM card to be always in a power supply state; and accordingly, after receiving a power on instruction, the television equipment can acquire the interaction resources from the preset memory and play the scrambled program after being synchronized with the CAM card according to the interaction resources of the CAM card. According to the playing method, after receiving the power off instruction, the television equipment controls the CAM card to be always in the power supply state, and therefore the condition that SAC is triggered to be re-executed is avoided; and after receiving the power on instruction, the television equipment can be synchronized with the CAM card according to the acquired interaction resources, cached when the television equipment is powered on last time, of the CAM card, the synchronization speed of the television equipment and the CAM card is effectively increased, then the STR starting time can be shortened, the playing time of the scrambled program is shortened, and then the quick power on requirement of a user is met.
Owner:VIDAA(荷兰)国际控股有限公司

Live-streaming microphone-connecting delay control method and device, electronic equipment and storage medium

InactiveCN109413469AShorten playback timeReduce the possibility of not connectingSelective content distributionTimestampElectric equipment
The embodiment of the invention provides a live-streaming microphone-connecting delay control method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a video stream sent by a second anchor side, wherein the second anchor side is the anchor side in microphone connection with a first anchor side; determining a target video stream located between a first timestamp and a second timestamp in the acquired video stream when detecting that the difference between the first timestamp of the acquired video stream and the second timestamp of the currently played video stream is not in a preset range; shortening playing time of the target video stream, and playing the target video stream after shortening the playing time. In the live-streaming microphone-connecting delay control method provided by the embodiment of the invention, the target video stream can be quickly skipped through a way of shortening the playing time of the target video stream and playing the target video stream after shortening the playing time in the network delay, the difference between the first timestamp and the second timestamp is reduced, the possibility that the dialogue cannot be joined is reduced, and the microphone connecting effect is improved.
Owner:BEIJING PANDA MUTUAL ENTERTAINMENT TECH CO LTD

Intelligent playback method for video records based on a motion information and apparatus thereof

The present invention relates to data application technologies in the field of video surveillance, and discloses an intelligent playback method for video records based on a motion information and an apparatus thereof. The method comprises the following steps: searching for all motion detection additional information conforming to a time period of a playback request in a hard disc, and storing the motion detection additional information as a motion information in a motion information linked list in terms of a time sequence; obtaining a current playback mode and a current playback time, and looking up a nearest motion information under the current playback mode and the current playback time from the motion information linked list; matching the found nearest motion information with the current playback time; controlling a playback speed according to a matching result, so as to implement an automatic control of an intelligent playback speed. A real-time, automatic, continuous control of a playback speed can be implemented by repeating performing the above steps, so that automatically adjusting to a normal playback speed when there is motion data and automatically adjusting to a rapid playback when there is no motion data are implemented, and a playback time of video records can be reduced.
Owner:HANGZHOU HIKVISION DIGITAL TECH
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