CPC Class H04N

[Problem] To provide a web conferencing system that allows a shared material to be easily searched for and shared without disturbing the progress of the web conference. [Solution] A web conferencing system 1 that connects a first terminal 3, a second terminal 5, and a third terminal 7, the web conferencing system 1 comprising: a web conference screen display unit 11 configured to display a web conference screen on the first terminal 3 and the third terminal 7; and a material sharing unit 13 configured to: receive a sharing instruction to share a shared material from the second terminal 5; cause the first terminal and the third terminal to share the shared material.

Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and method for coordinating a side conversation within a virtual conferencing system. The program and method provide, for each of plural participants within a room, display of a participant video element correspond to the participant and including a user-selectable button to initiate a side conversation with the participant; receive indication of a user selection, by a first participant, of the user-selectable button for initiating the side conversation with a second participant; provide for a side conversation between a first device of the first participant and a second device of the second participant, the first and second participants maintaining presence in the room during the side conversation; and cause, for each of the plural participants, modified display of the participant video elements corresponding to the first and second participants, to indicate the side conversation.

One example method for virtual relocation during network conferences includes joining, by a host client device, a network conference hosted by a network conference provider, the network conference including a plurality of participants connected to the network conference via respective participant client devices; requesting a first modified video stream from a first participant of the plurality of participants, receiving the first modified video stream from the first participant; selecting a location within a background for the modified video stream; and transmitting, to the participant client devices, the background and an instruction to relocate the first modified video stream based on the location within the background.

Example implementations include a method, apparatus and computer-readable medium of video coding, comprising performing a conversion between a video comprising a plurality of pictures and a bitstream of the video, wherein each picture comprises an alpha layer and a base layer, and wherein the bitstream comprises a current block in the alpha layer of a current picture that is predicted from one or more reference blocks in the base layer.