초록 ▼

A video telephone headset device includes a foundation which supports an image capture device, a support arm, and a convex mirror. When the foundation is held adjacent to a user's head, the support arm positions the convex mirror in a fixed position in front of the user's face. The mirror reflects t

A video telephone headset device includes a foundation which supports an image capture device, a support arm, and a convex mirror. When the foundation is held adjacent to a user's head, the support arm positions the convex mirror in a fixed position in front of the user's face. The mirror reflects the full facial image to the image capture device. This arrangement makes it possible to construct a video telephone headset which is simple and small in size yet able to capture the full face and facial expressions using very little bandwidth.

대표청구항 ▼

[ I claim:] [1.] A method for generating a transformed signal in a videoconferencing device which corrects for perspective distortions, said method comprising the steps of:a) collecting an optical signal through an image capture device, said image capture device positioned at a first perspective poi

[ I claim:] [1.] A method for generating a transformed signal in a videoconferencing device which corrects for perspective distortions, said method comprising the steps of:a) collecting an optical signal through an image capture device, said image capture device positioned at a first perspective point a first distance in front of a user's face and said image capture device having a view angle of greater than 52 degrees;b) generating a first electrical signal corresponding to said optical signal;c) inputting said first electrical signal into a distortion corrector;d) inputting a second electrical signal into said distortion corrector, said second electrical signal corresponding to a set of predetermined transform factors stored electronically which are based on the physical contours of a human face and which correspond to the geometric transforms for shifting the perspective of an image;e) applying transformations to first electrical signal corresponding to translating the locations of elements of the optical signal from a first distribution corresponding to the distribution from a first perspective viewed from said first perspective point to a second distribution corresponding to the distribution from a second perspective viewed from a second perspective point, said second perspective point being a second distance from said user's face, said second distance being greater than said first distance; andf) presenting said transformed first electrical signal as a transformed digital signal; h that the said transformed digital signal corresponds to a perspective viewed from a location in front of said user's face at said second location, and the angle subtended by the image of said user's face viewed from said second location is less than 52 degrees.