摘要:
A system for providing virtual pan-tilt-zoom, PTZ, video functionality video to a plurality of users (60a-60c) over a data network (30) is provided. The system (100) comprises one or more network video cameras (10a-10e) positioned to make a video recording of a real-world target field (20), or a respective subarea thereof, and output a respective raw video segment onto the data network (30), a back-end camera calibration unit (42) which is adapted to obtain a relative position and orientation of the respective network video camera (10a-10e) with respect to a three dimensional world space for the target field (20), and to save the obtained relative position and orientation as metadata for the respective network video camera (10a-10e), a back-end video processing unit (44), connected to the data network (30) and adapted to receive the respective raw video segment(s) recorded by the network video camera(s) (10a-10e), and to store or buffer video contents of the respective raw video segment(s) in a back-end video storage (41), a back-end video streaming unit (46) adapted to stream the stored or buffered video contents and the saved metadata for the respective network video camera (10a-10e) onto the data network (30), a plurality of client devices (50a-50c) for use by the plurality of users (60a-60c). Each client device (50a-50c) is adapted to receive the streamed video contents and the metadata, determine a chosen virtual pan-tilt-zoom value and present, on a display (52a-52c) of the client device, the video contents by projecting directions, in the three dimensional world space, onto the display (52a-52c) based on the chosen virtual pan-tilt-zoom value and the metadata.
摘要:
A data processing method (100) in video production of a live event involving a plurality of persons acting in a real-world target field is disclosed. The method (100) comprises: receiving (110) wireless communication signals that contain respective sensor data (24) including motion-triggered data; processing (120) the motion-triggered data to determine first movement patterns; obtaining (130) a video stream of a real- world target field (20); processing (140) the video stream to determine second movement patterns; analyzing (150) the first movement patterns and the second movement patterns for matches between them; and for each particular second movement pattern that matches a particular first movement pattern, identifying (160) a person having the particular second movement pattern as being associated with the sensor data that comprises motion-triggered data from which the particular first movement pattern was determined.
摘要:
A system (100) for providing a recommended video production (80) is disclosed herein. The system (100) comprises an overview camera (10) for capturing an overview recording, additional camera(s) (15a-n) for capturing additional recordings, and a back-end video production unit (44). The back-end video production unit is configured to receive the recordings being synchronized in time, apply image processing algorithm(s) to the overview recording for determining interest levels, wherein interest levels are associated with real-world events occurring within and around subareas of the real-world target field (20), select video contents among the recordings, wherein the selection is based on the interest levels as defined by the processed overview video recording, and based on said selection, produce the recommended video production (80) that, for each time unit, comprises video contents reflecting a currently highest interest level among the overview video recording and the additional video recording(s).