VIDEO-CONFERENCE TERMINAL DEVICE, VIDEO-CONFERENCE SYSTEM, IMAGE DISTORTION CORRECTION METHOD, AND IMAGE DISTORTION CORRECTION PROCESSING PROGRAM PRODUCT

摘要

A local video-conference terminal device includes a wide-angle camera lens, a camera image correction control unit that performs distortion correction processing on an image included in digital video signal from the wide-angle camera lens, a camera image correction table storage unit including correction tables for the distortion correction processing regarding a partial area of the image, a video display unit displaying the digital video signal after distortion correction, and a camera display switching key outputting a signal to select an image correction table. The camera image correction control unit performs the distortion correction processing on the image included in digital video signal using the image correction table selected by switching through the camera display switching key.

主权项

1. A video-conference terminal device comprising:
a wide-angle camera comprising a wide-angle camera lens; a first control unit that receives a digital video signal from the wide-angle camera and performs distortion correction processing on an image included in the digital video signal; a storage unit that stores therein image correction information used when the first control unit performs the image distortion correction processing, the image correction information comprising correction information for the distortion correction processing regarding at least a partial area of the image included in the digital video signal from the wide-angle camera; a second control unit that transmits and receives a signal to and from another video-conference terminal device coupled to a network; a providing unit that provides the digital video signal of the wide-angle camera and a digital video signal on which the distortion correction has been performed; and an operating unit that outputs a signal to switch pieces of the image correction information stored in the storage unit every time being operated, wherein the first control unit performs distortion correction processing on the image included in the digital video signal using a piece of the image correction information that has been selected by switching through the operating unit.