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52 results about "Video mosaicing" patented technology

Audio communications using devices with different capabilities

A multimedia collaboration system that integrates separate real-time and asynchronous networks—the former for real-time audio and video, and the latter for control signals and textual, graphical and other data—in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio / video / data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio / video.
Owner:PRAGMATUS AV

Method for splicing large-scale video with separated dynamic foreground

The invention discloses a method for splicing large-scale video with a separated dynamic foreground, which relates to the field of video splicing and panorama video. The method comprises the following steps: shooting by cameras with multiple positions and relatively fixed and same shooting angles to obtain video data, sequentially reading video sequences by a computer system, sequentially carrying out geometry correction and foreground extraction on the video sequences, then respectively matching and exchanging foreground video sequences and background video sequences to obtain spliced foreground and background video, and finally syncretizing the spliced foreground and background video to obtain a final video splicing result. The placing position of the cameras used in the invention can be adjusted according to the shooting environments, and the number of the cameras can be 2 or more. The method avoids generating a ghost shadow through separating the foreground and reselecting data to be remained by one part in an overlapped region. Tests prove that the method not only ensures the video quality, but also increases the speed of a splicing algorithm.
Owner:BEIJING UNIV OF TECH

Multi-image seamless splicing method and apparatus taking panoramic image as reference

The invention relates to the multi-video seamless splicing technology. Calibration of a relative position relation between multiple videos is needed. The invention proposes a multi-video seamless splicing method and a splicing panoramic camera apparatus taking a fish-eye panoramic camera as a reference. The apparatus comprises a fish-eye panoramic camera and a camera array formed by a plurality of common cameras. The fish-eye panoramic camera photographs a panoramic image in a 180 DEG view. The camera array photographs common videos which are used for the multi-video splicing. According to the method, all the cameras in the camera array are in registration with the panoramic image, a relative position relation between the camera array and the panoramic camera is established, and the seamless splicing of the multiple videos are conduced according to the relative position relation. The method and the apparatus have the advantages such as low demand for overlapping field of vision, and good robust performance of registration, and solve a problem of poor image splicing effect caused by low image registration precision in a conventional spliced panoramic camera composed of multiple common cameras.
Owner:HUNAN VISION SPLEND PHOTOELECTRIC TECH

Generalized panoramic mosaic

Video mosaicing is commonly used to increase the visual field of view by pasting together many video frames. The invention provides for image mosaicing for general camera motion, including forward camera motion and zoom. After computing the motion between the images in a sequence, strips are selected from individual frames such that the strips are approximately perpendicular to the optical flow. The strips are warped such that the optical flow becomes parallel, and are pasted to a panoramic mosaic. The warping transformation on the strips, which results in making the optical flow to be parallel, can be modeled by an oblique projection of the image onto a cylindrical surface whose central axis is the trajectory of the camera. In addition, this invention uses view interpolation to generate dense intermediate views between original video frames, such that these intermediate views are used to overcome effects of motion parallax when creating panoramic mosaics.
Owner:YISSUM RES DEV CO OF THE HEBREW UNIV OF JERUSALEM LTD

Log-in based communications plus two data types

A multimedia collaboration system that integrates separate real-time and asynchronous networks—the former for real-time audio and video, and the latter for control signals and textual, graphical and other data—in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio / video / data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio / video.
Owner:PRAGMATUS AV

Generalized panoramic mosaic

Video mosaicing is commonly used to increase the visual field of view by pasting together many video frames. The invention provides for image mosaicing for general camera motion, including forward camera motion and zoom. After computing the motion between the images in a sequence, strips are selected from individual frames such that the strips are approximately perpendicular to the optical flow. The strips are warped such that the optical flow becomes parallel, and are pasted to a panoramic mosaic. The warping transformation on the strips, which results in making the optical flow to be parallel, can be modeled by an oblique projection of the image onto a cylindrical surface whose central axis is the trajectory of the camera. In addition, this invention uses view interpolation to generate dense intermediate views between original video frames, such that these intermediate views are used to overcome effects of motion parallax when creating panoramic mosaics.
Owner:YISSUM RES DEV CO OF THE HEBREWUNIVERSITY OF JERUSALEM LTD

Panoramic video mosaicing system and method based on camera automatic calibration and color correction

The invention discloses a panoramic video mosaicing system and method based on camera automatic calibration and color correction. The system comprises a camera automatic calibration module and a color on-line correction module. The camera automatic calibration module comprises an initial homography matrix calculation submodule, an overlapping region calculation submodule, an overlapping region regulation submodule, a feature matching submodule and a homography matrix correction submodule. The color on-line correction module comprises an overlapping region color correction submodule and an integral image color correction submodule. The method comprises a camera automatic calibration step S1, a color on-line correction step S2 and a panoramic image mosaicing step S3. A homography matrix between images to be mosaicked is corrected through a scaling matrix and a skewing matrix during automatic calibration to make the homography matrix more accurate; and when overlapping region color correction is carried out, a conversion relationship matrix is corrected by utilizing continuous three-frame image information to enable color transformation between frames in a panoramic image of a video to be more smooth and fluent.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Panoramic video splicing system and splicing method

The invention relates to a panoramic video splicing system. The panoramic video splicing system comprises a panoramic camera arranged in a camera area, wherein the panoramic camera comprises a plurality of sub cameras connected with each other, and further comprises a video obtaining module for obtaining an original panoramic video image from the panoramic video machine, a moving module for moving the video images of the sub cameras, and an image splicing and processing module for splicing the panoramic video images. The invention further relates to a panoramic video splicing method. According to the panoramic video splicing system and the panoramic video splicing method, the adjacent two video images are directly moved, spliced and fused through the splicing system, the stacked area of the adjacent video image boundaries is regulated, and smooth fusing processing is performed on the stacked area, so that the problems that the video display is poor in real-time performance and not good in stability when the video images are spliced into the panoramic video image, and required video splicing and fusing time due to reasons of splicing and fusing complexity and the like through the image splicing algorithm under various shooting environments is reduced.
Owner:GUILIN CHANGHAI DEV

Device and method for carrying out real-time splicing on surveillance videos based on FPGA (field programmable gata array)

The invention discloses a device and method for carrying out real-time splicing on surveillance videos based on FPGA (field programmable gata array), which relate to a surveillance video splicing device and a surveillance video splicing method, and aim to achieve an effect of carrying out real-time seamless splicing on video signals output by multiple channels of cameras. Under the control of a video capturing circuit, a video decoding circuit converts multiple channels of video signals from a plurality of cameras into digital signals, then the digital signals are corrected by an image preprocessing module, and after the digital signals enter into an image splicing module to implement the seamless splicing of each frame of images, a video display control module controls a video digital-to-analog conversion circuit to output the video subjected to splicing to a display in real time. According to the invention, the video signals output by the multiple channels of cameras can be subjected to real-time seamless splicing, and the video signals with partial overlapped scenes, output by the multiple channels of cameras, can be subjected to space matching alignment, then the video signals are subjected to seamless splicing so as to form a channel of wide-scene video, and low-distortion video signals subjected to splicing are directly output on the display. The device and method disclosed by the invention are applicable to the real-time splicing of the surveillance videos.
Owner:HEILONGJIANG UNIV

Stitching videos into aggregate video

Systems and methods for identifying sources associated with video clips uploaded by users and stitching those video clips into a single aggregate video according to a desired parameter and / or order. In particular, video clips uploaded by users can be matched to a source. Based upon processing of the video clip and / or source, a set of video clips with related content can be identified. That set of video clips can be ordered according to an ordering parameter. Overlapping and / or missing content can be identified, and the ordered set can be stitched into an aggregate video.
Owner:GOOGLE LLC

Fixed-point directional video real-time mosaic method without valid overlapping variable structure

The invention discloses a fixed-point directional video real-time mosaic method without a valid overlapping variable structure. The method comprises the steps: respectively collecting the video stream information in different positions; dividing the compressed video stream information to multiple first static video frame groups according to the time sequence; converting the static image corresponding to each route of the video stream information in the first static video frame groups to the overlook picture of a shot object, and forming a second static video frame group; performing the location, full view coarse mosaic, compensation fusion, and full view fine mosaic to each video frame in the second static video frame group to obtain the real-time full view video stream. The method is capable of, in allusion to different perspectives and different directions, performing the mosaic processing to the image without valid overlapping variable structure which is collected in the same field, and generating the video stream in real time. The mosaic method is capable of improving the image mosaic precision, ensuring the image mosaic efficiency, and satisfying the real-time request of the video stream mosaic.
Owner:CENT SOUTH UNIV

Video splicing system and method for binocular robot

The invention provides a video splicing system and method for a binocular robot, and belongs to the technical field of robot visual images. The system comprises a robot video frame acquisition module,an image splicing system processing module, a wireless transmission module and a terminal display module, wherein the image splicing system processing module comprises an overlapping area positioningmodule, a feature point parallel directional registration module, an image color correction module, an image deformation module, a dynamic planning suture line module and an image smooth fusion module; the system can carry out system, video frame coincidence area positioning, feature point directional registration, image color correction, image deformation, dynamic suture line planning and imagesmooth fusion processing on an image frame collected by a robot in a binocular mode to obtain high-quality spliced video; the visual field of the robot is greatly expanded, purposes of movement, positioning, identification and the like can be better completed, and the image frame splicing speed and the splicing efficiency are improved.
Owner:GUANGXI NORMAL UNIV

Binocular video splicing device based on SOPC and binocular video splicing method

The invention provides a binocular video splicing device based on an SOPC. The binocular video splicing device comprises an SOPC system making a NiosII soft-core processor as a core, wherein a pair of CMOS imaging sensors are connected with a pair of binocular video acquisition modules respectively through FPGA ports; the binocular video acquisition modules are connected with a binocular video storage module; one path of the output end of the binocular video storage module is connected with a binocular video output module through a feature extraction co-processor, and the other path of the output end of the binocular video storage module is connected with a binocular video display module; the binocular video output module is further respectively provided with the NiosII processor and an upper computer, and the binocular video display module is further connected with a VGA displayer. According to a binocular video splicing method, feature points are roughly matched through a Euclidean distance method, then partial mismatching points are extracted by means of a KNN method, a homograph matrix is calculated by the adoption of a RANSAC method at last, and real-time splicing for single-frame binocular video data is achieved through cylinder space conversion and linear weighing fusion.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Video data synchronous transmission method, device and system

The invention relates to a video data synchronous transmission method, apparatus and system. The method includes the following steps that: video data captured by a plurality of cameras arranged at different positions are acquired; frame images in the plurality of paths of video data are integrated into a frame image queue according to the sequence of the time axes of the frame images in the video data, so that frame images in the video data, which are contained in time periods of a preset length, are consistent quantitatively; and the frame images are sent out according to the sequence of the frame image queue. According to the video data synchronous transmission method, apparatus and system provided by the embodiments of the invention, the plurality of paths of video data are integrated into one path of video data, in a transmission process, the frame images in the video data, which are contained in the time periods of the preset length, are consistent quantitatively, and therefore, it can be ensured that data in all the video data can be sent to a display terminal with the same speed so as to be displayed, and it can be also ensured that the plurality of paths of videos can be displayed synchronously or with tiny time difference, and therefore, the synchronous consistency of spliced videos can be ensured.
Owner:北京乐景科技有限公司

Method for achieving interactive panoramic video stream map

The invention discloses a method for achieving an interactive panoramic video stream map, and the method comprises the steps: employing a high-definition camera, and employing six CCDs with fixed inclined angles for achieving nearly 100% omnibearing spherical imaging; calibrating the camera, and carrying out the collection of panoramic video data after the conversion between coordinate systems in a process of three-dimensional reconstruction; carrying out the preprocessing of collected data after collection, reconstructing a more real three-dimensional scene, importing the three-dimensional scene to video splicing software for splicing, and enabling final panoramic video stream data to achieve the best visual effect; finally carrying out the issuing at a Flash format. The panoramic video stream map based on continuous scenes can effectively solve a problem that the user experience of a conventional panoramic map based independent scene image groups is not good during switching of different scenes because the video stream is continuous.
Owner:SHANGHAI KUJING INFORMATION TECH CO LTD

Method for achieving interactive panoramic video stream map

The invention relates to a method for achieving an interactive panoramic video stream map. The method comprises the steps of hardware design of collecting equipment, wherein the complete collecting equipment is composed of a carrier loader, a panoramic picture pick-up system, a GPS receiver, a control switch and data storage equipment; data collection, wherein a user starts data collection work by starting a data recording switch button of a controller, six vidicons in wired connection with the controller and a GPS receiver at the same time, and the data are recorded to the storage equipment; data processing, wherein six paths of collected video stream map data are guided into video stitching software after collection work is completed, the software can automatically match an initial point, and the video stitching process is completed automatically; data releasing, wherein Flash format releasing is adopted in the data releasing. The method has the advantages that 360-degree panoramic video and map fusion is achieved, the ultra-wide view angle is achieved, a traditional map is supplemented well, data updating efficiency is high, and the amount of information is rich.
Owner:武汉市测绘研究院

Video splicing apparatus and video splicing method based on image splicing

The invention provides a video splicing apparatus and a video splicing method based on image splicing. The video splicing method based on image splicing comprises the following steps: obtaining a first path of videos and a second path of videos to be spliced; respectively extracting a feature point corresponding to each frame of image in n frames of images in the first path of videos and the second path of videos; sequentially splicing the ith frame of image of the first path of videos and the ith frame of image of the second path of videos according to the feature point of the ith frame of image of the first path of videos and the feature point of the ith frame of image of the second path of videos to obtain a spliced video; and displaying the spliced vide. According to the video splicingmethod based on image splicing provided by the invention, the features of the two paths of videos are extracted and executed to improve the splicing efficiency and the splicing stability.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

A video mosaic system based on large scene and multi-GPU mode

The invention belongs to the technical field of video monitoring, particularly relates to a video mosaic system based on large scene and multi-GPU mode, including front-end cameras, video analysis module, video storage module, a video terminal display module and a video mosaic server, overcoming the shortcomings of the prior art, solving the technical problem that the single camera monitoring angle is limited and can not meet the overall monitoring of the large scene, and realizing the high-resolution panoramic real-time monitoring of the large scene, and realizing no stitching and color difference.
Owner:HEFEI JUQING INFORMATION TECH

Personal video commercial studio system

Disclosed are systems, devices, and processes to create a successful and effective personal video commercial through the use of one or more scripts, timecode commands, storyboarding, teleprompting displays, analyzers directed to static defects, eye contact, facial expression, and audio spoken word defects, automated video splicing, and video content and quality scoring, and feedback of the scoring.
Owner:ONEVA

Adjusting method and adjusting device for video splicing camera

The invention relates to the field of video processing, and discloses an adjusting method and an adjusting device for a video splicing camera. According to the adjusting method and the adjusting device, N*M cameras for video splicing are prearranged, wherein N and M are positive integers and furthermore N is larger than 1. The adjusting method comprises the following steps of acquiring N*M pictures which are photographed by the N*M cameras for video splicing; through performing picture analysis on the acquired N*M pictures, determining whether the photographed pictures satisfy a preset splicing condition; and if the determining result represents a fact that the photographed pictures do not satisfy the preset splicing condition, acquiring photographing parameter adjustment reference information of the cameras which photograph the pictures that do not satisfy the preset splicing condition based on image analysis technology. The adjusting method and the adjusting device can realize automatic adjustment on the splicing cameras or facilitate debugging personnel for realizing quick and effective mounting debugging of the cameras, thereby obtaining high-quality spliced video images.
Owner:HANGZHOU HIKVISION DIGITAL TECH

Double-camera panoramic video splicing method based on suture line space-time optimization

The invention relates to a video splicing method based on suture line space-time optimization and belongs to the field of video processing. The method comprises the following steps of detecting feature points through a SIFT algorithm and aligning the feature points, optimizing the feature points with RANSAC, and calculating the tie distance of the feature point pairs in the vertical direction, andpre-aligning a video frame; and based on a graph cutting algorithm, and constraints such as foreground, edge, parallax and the like, calculating the optimal suture line; smoothing the suture line sequence by means of the foreground detection and Gaussian filter; and performing quality evaluation on the suture line sequence; performing linear fusion on images on the two sides of the suture line byutilizing the quality of the suture line to obtain a panoramic video. Compared with methods in the prior art, the method reduces ghost images of the panoramic video, maintains the frame continuity ofthe video, and improves the visual quality of the video.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Multimedia file splicing method and apparatus

The invention discloses a multimedia file splicing method and apparatus. The method comprises: a first video clip and a second video clip that are going to be spliced are obtained; audio files corresponding to the first video clip and the second video clip are obtained, wherein the audio files record first starting and ending time of the first video clip and second starting and ending time of the second video clip; the first video clip is adjusted to be played within a first period of time indicated by the first starting and ending time and the second video clip is adjusted to be played with a second period of time indicated by the second starting and ending time, wherein the first period of time and the second period of time do not overlap with each other; and splicing operation is carried out on the adjusted first video clip and the adjusted second video clip to obtain a spliced video file. According to the invention, a technical problem of low synthesis precision during the audio and video splicing process in the prior art can be solved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

System for mosaicing videos by adopting brightness and color cast between two videos

The invention discloses a system for mosaicing videos by adopting brightness and color cast between two videos. The system comprises an image acquisition module used for receiving two video signals of a YUV format, taking one signal as a target frame and the other signal as a reference frame, and then transmitting the target frame and the reference frame to a data synchronization module; the data synchronization module synchronizes horizontal and vertical signals and pixel clock signals of the target frame and reference frame fields, provides a required clock domain for the system, and performs phase synchronization on two videos; in a video mosaic SoC system, the system selects one video image as the reference frame, and preprocesses an input target frame based on a white balance algorithm and a linear brightness adjustment algorithm of a gray-edge; a method for adjusting multiple input videos to keep color and brightness of the input videos to be consistent is proposed, so that image color and brightness change after mosaic and fusion can be more uniform and natural.
Owner:TIANJIN UNIV

Real-time panoramic video splicing display device and method

ActiveCN108616717AMeet the needs of real-time splicing and roaming displayReduce power consumptionTelevision system detailsColor television detailsFpga implementationsData acquisition
The invention belongs to the technical field of embedded computer video processing, and especially relates to a real-time panoramic video splicing display device and method. The traditional panoramicvideo splicing display generally collects video data by multi-channel cameras, then processes the collected video data at a workstation or PC (Personal Computer) and is poor in real-time performance.The invention aims to overcome the deficiencies of the traditional panoramic video splicing display in real-time performance, and designs a special embedded device and a corresponding method. The device can receive six channels of video input with different angles, processes the video input and then display the video at any viewing angle in real time. The technical scheme of the invention is to realize real-time video splicing and panoramic roaming on a multi-core DSP, and realizes real-time video data collection, buffering and display by an FPGA (Field Programmable Gate Array).
Owner:XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA

Video splicing method based on Bayesian theory

The invention provides a video splicing method based on the Bayesian theory. The method comprises steps of estimating a flow field for a corresponding frame of a video, and considering image registration errors caused by inaccuracy of the flow field; applying the Bayesian theory in time and space and using the image errors as self-adaption reliability so as to obtain a posterior probability model after splicing of the video; and solving a maximum posterior model by means of the optimization method so as to obtain stable high-quality video output results. According to the invention, singular points caused by inaccuracy of estimation of the flow field can be effectively removed in space and stability of the video is ensured in time, so high-quality video output results can be obtained.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

MRI/PET/CT/PET-CT panoramic video auxiliary system

The invention provides an MRI / PET / CT / PET-CT panoramic video auxiliary system which is applied in scanning detection of MRI, PET, CT, PET-CT and the like to acquire and monitor human pose states on a scanning bed in a scanning rack hole in real time. The system comprises a video synchronous acquisition module composed of multiple wide-angle cameras and a pose adjusting device thereof, a video preprocessing module for performing video distortion correction processing, a video splicing module for performing fusion splicing on video overlapping areas, a video storage module for storing spliced videos and a video display module for displaying the spliced videos. According to the system, GPU parallel computing multi-thread control is adopted, and video acquisition, preprocessing, splicing, display and storage are carried out by using a translation and variable diameter rotation composite motion model. The system can meet direct and complete observation of body position change when a doctor scans a patient.
Owner:沈阳灵景智能科技有限公司

Video compression method and video compression system of multiple video streams

The invention relates to the field of video compression, and particularly relates to a video compression method of multiple video streams. The invention provides the video compression method of multiple video streams, and the method comprises the following steps: acquiring video streams of multiple paths of input sources and inputting the acquired video streams in the same processing device, then performing video stitching to synthesize multiple paths of video streams into one path, if on-site external audio recording exits, compressing the synthesized video stream and the on-site acquired audio stream together, and then performing transmission; otherwise, randomly selecting one audio input as audio to be compressed together with the synthesized video stream, and then performing transmission. The video compression method of multiple video streams provided by the invention not only can improve compression efficiency in a transmission process, but also can recover a real scene and save uploading bandwidth.
Owner:深圳算云科技有限公司

Panoramic monitoring and PTZ camera linkage method based on video feature matching

A panoramic monitoring and PTZ camera linkage method based on video feature matching includes the following steps of splicing of fixed camera video images, forming of a PTZ camera background image, feature matching of a fixed camera video spliced image and the PTZ camera background image, and PTZ camera scheduling, wherein in the step of splicing of the fixed camera video images, the video images shot by different fixed cameras from different angles are spliced through the partially constrained feather method to obtain a panoramic video spliced image; in the step of forming of the PTZ camera background image, a PTZ camera scans according to step size to obtain the PTZ camera background image; the feature matching of the fixed camera video spliced image and the PTZ camera background image is carried out in the mode that feature points of the fixed camera video spliced image and the PTZ camera background image are extracted for feature matching, and a mapping relation between the fixed camera video spliced image and the PTZ camera background image is obtained; PTZ camera scheduling is carried out by obtaining a point on the fixed camera video spliced image, namely the PTZ camera is scheduled to the point by obtaining the point on the fixed camera video spliced image to capture detail information of the point.
Owner:BEIJING ZHENGAN RONGHAN TECH

Apparatus and method for estimating user interest degree of a program

A multimedia collaboration system that integrates separate real-time and asynchronous networks-the former for real-time audio and video, and the latter for control signals and textual, graphical and other data-in a manner that is interoperable across different computer and network operating system platforms and which closely approximates the experience of face-to-face collaboration, while liberating the participants from the limitations of time and distance. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio / video / data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations and their interconnecting LANs and WANs. In a particular preferred embodiment, a plurality of geographically dispersed multimedia LANs are interconnected by a WAN. The demands made on the WAN are significantly reduced by employing multi-hopping techniques, including dynamically avoiding the unnecessary decompression of data at intermediate hops, and exploiting video mosaicing, cut-and-paste and audio mixing technologies so that significantly fewer wide area transmission paths are required while maintaining the high quality of the transmitted audio / video.
Owner:PACE MICRO TECH
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