266 results about "Video communication system" patented technology

Video communication systems and methods for operating the same are provided with the method determining privacy settings for a video communication event; establishing a video communication link with a video communication system at a remote site; capturing video images of a field of view of at least one image capture device; determining a video context based at least in part upon a determined contextual classification for the communication event; analyzing the captured video images to identify privacy sensitive areas in the captured video images, using a scene analysis algorithm which examines a content of the video images and image context characteristics of the video images based upon the determined privacy settings; modifying the image characteristics in identified privacy sensitive image areas of captured video images, to control the image and image context characteristics to an extent consistent with the determined privacy settings; and transmitting the modified video images.

An audio-video communication system comprises a wireless exterior module located proximate an entrance, a computerized controller running a software application, and a remote peripheral device. The wireless exterior module includes a proximity sensor for detecting a person at the entrance, a video camera for recording an image of the person at the entrance, a microphone for recording the person at the entrance, a speaker for playing audio to the person at the entrance, a transmitter for communicating sounds and images of the person at the entrance, and a receiver for receiving communications at the wireless exterior module. The computerized controller is disposed in wireless electronic communication with the wireless exterior module via the transmitter and the receiver of the wireless exterior module. The remote peripheral device is configured to electronically communicate with the computerized controller for viewing an image from the video camera communicated from the wireless exterior module.

A method for multichannel video communication comprises the following steps of (1) detecting network condition information and more than two long-distance client attributes, and setting up video communication connection; (2) choosing video coding parameters corresponding to each long-distance client according to the network condition information and each long-distance client attribute; (3) separately coding video data according to the video coding parameters; (4) transmitting the separately coded video data to each long-distance client. In the method for the multichannel video communication, the step two ensures that the coded video data received by each long-distance client is in conformity with the network bandwidth and the equipment attribute, thereby improving the quality of the multichannel communications. In addition, a multichannel video communication system is further provided.

The invention discloses a video communication system, a device and a caption display method thereof. The system or the device comprises a voice picking module, an image picking module, and a voice recognition module and a video encoder module which are mutually connected, when video communication is set up, the voice recognition module and the voice picking module are connected and transmit a received speech signal after being converted into a text signal to the video encoder module, the video encoder module is connected with the image picking module, and the text signal and the video signal received by the image picking module are transmitted after being superimposed and encoded by the video encoder module,. By adopting the video communication system, the device and the caption display method thereof, a user can directly decode a displayed image and word information corresponding to voice by encoding and sending the voice signal after being recognized into the text signal and being directly superimposed onto the video signal, therefore, the method is simple, and the real-time is high.

The invention relates to a video encoding and decoding method which is used in a video communication system, wherein the predictive encoding type and reference frame type of a video encoding device are controlled according to the network state and a notice message of a video decoding device. When a network is congested, the video encoding device utilizes a reference frame as a long-term reference frame to perform interframe prediction encoding and judges whether the video decoding device receives the corresponding reference frame according to the notice message of the video decoding device, thus the video encoding device and the video decoding device can utilize the same reference frame. The invention also provides the video encoding device and video decoding device which are used in the method in the invention. The video encoding and decoding method, video encoding device and video decoding device provided by the invention are used to encode and decode a video image by determining the long-term reference frame, thus the video encoding device and the video decoding device can utilize the same reference frame, the decoding error phenomenon caused by packet loss can be avoided and the quality of the video image in video communication can be increased.

A method and device for adapting a display image on a hand-held portable wireless display and digital capture device. The device includes a camera for capturing a digital video and / or still image of a user, means for adjusting the captured digital image in response to poor image capture angle of said image capture device so as to create a modified captured digital image; and means for transmitting said modified captured digital image over a wireless communication network to a second hand-held portable wireless display and digital capture device.