Microsoft Technology Licensing, LLC

Jianguang Lou

Jiang Tao Li

Hua Cai

Jian Wang

Shipeng Li

Heung-Yeung Shum

Yihua Xu

Interactive multi-view video presents a new type of video capture system. Many video cameras are allocated to capture an event from various related locations and directions. The captured videos are compressed in control PCs and are sent to a server in real-time. The compressed video can also be transcoded through an off-line compression approach to further reduce the data amount. Users can subscribe to a new type of service that allows users to connect to the servers and receive multi-view videos interactively.

System and method for interactive multi-view video

Interactive multi-view video presents new types of video capture systems, video formats, video compression algorithms, and services. Many video cameras are allocated to capture an event from various related locations and directions. The captured videos are compressed in control PCs and are sent to a server in real-time. Users can subscribe to a new type of service that allows users to connect to the servers and receive multi-view videos interactively. In one embodiment of the invention, an automatic pattern-free calibration tool is employed to calibrate the multiple cameras. In contrast with a pattern-based method which uses the correspondences between image points and pattern points, the pattern-free calibration method is based on the correspondences between image points from different views.

System and method for calibrating multiple cameras without employing a pattern by inter-image homography

Interactive multi-view video presents new types of video capture systems, video formats, video compression algorithms, and services. Many video cameras are allocated to capture an event from various related locations and directions. The captured videos and any associated audio streams are captured in a video beam format which allows for the efficient and expedient search of the vast amount of data in real-time and allows the data to be stored for off-line access.

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Beijing, China

Jianguang Lou