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Human pointer recognition for teleconference users Disclosure Number: IPCOM000236874D
Publication Date: 2014-May-20
Document File: 2 page(s) / 47K

Publishing Venue

The Prior Art Database


In this article we present a novel solution to a teleconferencing problem faced by many people. Frequently, a slide deck is presented in a conference room, with those on the call being able to view the slides too. If a presenter in the room points at an area of the screen, this information is lost to the remote callers. The solution described here detects pointing gestures that a user makes while in the room, and relays it back to remote callers.

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Human pointer recognition for teleconference users

Most solutions for having meetings over distance involve the use of phone and screen sharing applications. More specifically, a laptop, a projector, and a phone. This system, while widely accepted as acceptable, has a flaw in practice when it comes to a meeting where the majority of participants are in the room and only a few using telephones. Often, when people are talking in a room about items being

shared on a screen they may often point at interesting areas of the projected image,

which is not relayed back to the users on the phone.

    One solution to this problem would be to use video conferencing technologies to stream video. However this is very costly on bandwidth, potentially pushing emerging markets out of the meeting due to limitations on their internet speed.

    The solution herein proposes a cheaper, lower bandwidth alternative solution.

    Most laptops include a webcam. The solution herein requires the webcam to be pointed at the projected image, such that a computer vision system can detect that the projected image and that it's outputting to the projector match. A gesture recognition system is then employed to detect the pointing action of a presenter in the room, for example using their arm or fingers to highlight a specific part of the projected image. The location of this area can thus be tracked by the laptop. The region being pointed at (as a set of coordinates) can be sent to the remote viewers of t...