Method and apparatus for video conferencing in mobile terminal
View Patent ↗A method and apparatus for video conferencing in a mobile terminal are disclosed. The method includes receiving audio-visual signals comprising a video signal and a voice signal from participating users, selecting one of the audio-visual signals associated with a currently talking user based on properties of the audio-visual signals, decoding all frames of a video signal from the selected audio-visual signal and selectively decoding frames of video signals of the remaining audio-visual signals, and reproducing the decoded frames of the video signals.
1. A method for video conferencing by multiple participating users using a mobile terminal, the method comprising:
receiving audio-visual signals comprising a video signal and a voice signal from the participating users;
selecting one of the audio-visual signals associated with a currently talking user based on properties of the audio-visual signals;
decoding all frames of a video signal from the selected audio-visual signal and selectively decoding frames of video signals of remaining audio-visual signals; and
reproducing the decoded frames of the video signals.
2. The method of claim 1 , wherein the selecting of the one of the audio-visual signals comprises selecting the audio-visual signal comprising an audio signal with the highest sound level.
3. The method of claim 1 , further comprising comparing a sound level of the audio-visual signals with preset thresholds to determine a decoding scheme of the video signal frames.
4. The method of claim 1 , wherein the selecting of the one of the audio-visual signals comprises selecting the audio-visual signal comprising at least one of an audio signal and a video signal with the highest bit rate.
5. The method of claim 1 , further comprising comparing a bit rate of the audio-visual signals with preset thresholds to determine a decoding scheme of the video signal frames.
6. The method of claim 1 , wherein the selecting of the one of the audio-visual signals comprises selecting the audio-visual signal which requires a greatest amount of resources to process in the mobile terminal.
7. The method of claim 1 , further comprising comparing an amount of resources of the audio-visual signals with preset thresholds to determine a decoding scheme of the video signal frames.
8. The method of claim 6 , wherein the amount of resources corresponds to at least one of memory requirements and processing requirements to process an audio-visual signal.
9. The method of claim 1 , wherein the selectively decoding of the frames from the video signals comprises at least one of decoding only I-frames of a video signal and skipping decoding of a video signal.
10. An apparatus for video conferencing by multiple participating users in a mobile terminal, the apparatus comprising:
a radio communication unit for receiving audio-visual signals comprising a video signal and a voice signal from the participating users;
a control unit for selecting one of the audio-visual signals associated with a currently talking user based on properties of the audio-visual signals, decoding all frames of a video signal from the selected audio-visual signal and selectively decoding frames of video signals from remaining audio-visual signals; and
a display unit for reproducing the decoded frames of the video signals.
11. The apparatus of claim 10 , wherein the control unit selects one of the audio-visual signals comprising an audio signal with the highest sound level as an audio-visual signal associated with the currently talking user.
12. The apparatus of claim 10 , wherein the control unit compares a sound level of the audio-visual signals with preset thresholds to determine a decoding scheme of the video signal frames.
13. The apparatus of claim 10 , wherein the control unit selects one of the audio-visual signals comprising at least one of an audio signal and a video signal with the highest bit rate as an audio-visual signal associated with the currently talking user.
14. The apparatus of claim 10 , wherein the control unit compares a bit rate of the audio-visual signals with preset thresholds to determine a decoding scheme of the video signal frames.
15. The apparatus of claim 10 , wherein the control unit selects one of the audio-visual signals which require the greatest amount of resources to process in the mobile terminal as an audio-visual signal associated with the currently talking user.
16. The apparatus of claim 10 , wherein the control unit compares an amount of resources of the audio-visual signals with preset thresholds to determine a decoding scheme of the video signal frames.
17. The apparatus of claim 15 , wherein the amount of resources corresponds to at least one of memory requirements and processing requirements to process an audio-visual signal.
18. The apparatus of claim 10 , wherein the control unit decodes only I-frames of video signals of the remaining audio-visual signals or skips decoding of video signals of the remaining audio-visual signals.