Abstract: Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

Abstract: Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

Abstract: Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

Abstract: Systems and methods for multipoint video distribution are disclosed herein. In some embodiments, system for multipoint video distribution include at least one endpoint including a EECM and a DECM, and at least one server including a SECM, the server being coupled to the endpoint. In some embodiments, methods for configuring an encoder include receiving at least one property related to a capability of a decoder, determining a number of layers to be coded by the encoder, and configuring the encoder based on that at least one property.

Abstract: Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

Abstract: Systems and methods for communication of scaleable-coded audiovisual signals over multiple TCP/IP connections are provided. The sender schedules and prioritizes transmission of individual scalable-coded data packets over the plurality of TCP connections according to their relative importance in the scalable coding structure for signal reconstruction quality and according to receiver feedback. Low-latency packet delivery over the multiple TCP/IP connections is maintained by avoiding transmission or retransmission of packets that are less important for reconstructed media quality.

Abstract: Systems and methods for the control and management of multipoint conferences are disclosed herein, where endpoints can selectively and individually manage the streams that will be transmitted to them. Techniques are described that allow a transmitting endpoint to collect information from other receiving endpoints, or aggregated such information from servers, and process them into a single set of operating parameters that it then uses for its operation. Algorithms are described for performing conference-level show, on-demand show, show parameter aggregation and propagation, propagation of notifications. Parameters identified for describing sources in show requests include bit rate, window size, pixel rate, and frames per second.

Abstract: Systems and methods for multipoint video distribution are disclosed herein. In some embodiments, system for multipoint video distribution include at least one endpoint including a EECM and a DECM, and at least one server including a SECM, the server being coupled to the endpoint. In some embodiments, methods for configuring an encoder include receiving at least one property related to a capability of a decoder, determining a number of layers to be coded by the encoder, and configuring the encoder based on that at least one property.

Abstract: Systems and methods for the control and management of multipoint conferences are disclosed herein, where endpoints can selectively and individually manage the streams that will be transmitted to them. Techniques are described that allow a transmitting endpoint to collect information from other receiving endpoints, or aggregated such information from servers, and process them into a single set of operating parameters that it then uses for its operation. Algorithms are described for performing conference-level show, on-demand show, show parameter aggregation and propagation, propagation of notifications. Parameters identified for describing sources in show requests include bit rate, window size, pixel rate, and frames per second.

Abstract: Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

Abstract: Systems and methods for performing videoconferencing using endpoints with multiple monitors and multiple cameras are disclosed herein. These endpoints are comprised of, where each node is comprised of a control unit and one or more node units, each connected to at least one monitor, camera, speaker, or microphone. Video is encoded using scalable coding, and endpoints are connected to each other over a network using an SVCS. Algorithms are described for layout management, tagging of individual streams, and use of tags for dynamic and prioritized layout management.

Abstract: Systems and methods for communication of scaleable-coded audiovisual signals over multiple TCP/IP connections are provided. The sender schedules and prioritizes transmission of individual scalable-coded data packets over the plurality of TCP connections according to their relative importance in the scalable coding structure for signal reconstruction quality and according to receiver feedback. Low-latency packet delivery over the multiple TCP/IP connections is maintained by avoiding transmission or retransmission of packets that are less important for reconstructed media quality.

Abstract: A transmission bit rate control mechanism for a packet-based communication system in which sender transmission bit rates can vary over time is provided. The transmission bit rate mechanism includes a receiver recording mechanism, which receives transmission time information, computes and records statistical parameters of packets received from a sender; and a receiver processing mechanism, which selectively computes a new transmission bit rate using the recorded statistical parameters, and communicates a new transmission bit rate to the sender.

Abstract: Systems and methods for communication of scaleable-coded audiovisual signals over multiple TCP/IP connections are provided. The sender schedules and prioritizes transmission of individual scalable-coded data packets over the plurality of TCP connections according to their relative importance in the scalable coding structure for signal reconstruction quality and according to receiver feedback. Low-latency packet delivery over the multiple TCP/IP connections is maintained by avoiding transmission or retransmission of packets that are less important for reconstructed media quality.

Abstract: A transmission bit rate control mechanism for a packet-based communication system in which sender transmission bit rates can vary over time is provided. The transmission bit rate mechanism includes a receiver recording mechanism, which receives transmission time information, computes and records statistical parameters of packets received from a sender; and a receiver processing mechanism, which selectively computes a new transmission bit rate using the recorded statistical parameters, and communicates a new transmission bit rate to the sender.

Abstract: A transmission bit rate control mechanism for a packet-based communication system in which sender transmission bit rates can vary over time is provided. The transmission bit rate mechanism includes a receiver recording mechanism, which receives transmission time information, computes and records statistical parameters of packets received from a sender; and a receiver processing mechanism, which selectively computes a new transmission bit rate using the recorded statistical parameters, and communicates a new transmission bit rate to the sender.

Abstract: Systems and methods for communication of scaleable-coded audiovisual signals over multiple TCP/IP connections are provided. The sender schedules and prioritizes transmission of individual scalable-coded data packets over the plurality of TCP connections according to their relative importance in the scalable coding structure for signal reconstruction quality and according to receiver feedback. Low-latency packet delivery over the multiple TCP/IP connections is maintained by avoiding transmission or retransmission of packets that are less important for reconstructed media quality.

Abstract: A transmission bit rate control mechanism for a packet-based communication system in which sender transmission bit rates can vary over time is provided. The transmission bit rate mechanism includes a receiver recording mechanism, which receives transmission time information, computes and records statistical parameters of packets received from a sender; and a receiver processing mechanism, which selectively computes a new transmission bit rate using the recorded statistical parameters, and communicates a new transmission bit rate to the sender.

Abstract: Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.