| 摘要 |
PROBLEM TO BE SOLVED: To provide an all-round image display apparatus whereby a user can correct an error of an earth magnetism sensor of a head tracker with high accuracy so as to obtain more realistic video images. SOLUTION: The all-round image display apparatus comprising a head tracker 10, a head mounted display 30, and a drawing processing means 20 is provided with an adjustment information drawing processing section 21 for displaying a gazing point and an index showing the center of a screen on the screen of the head mounted display 30, which moves on the circumference of a virtual cylinder crossing with the horizontal plane at a constant speed; a means 15 for monitoring the output of a geomagnetism sensor 13 when the user turns his head by 360°to match the index with the gazing point, and calculates a correction value to a bias error; a means 16 for storing the correction value; and a means (14) for correcting the bias error of the geomagnetism sensor 13 by the correction value. COPYRIGHT: (C)2004,JPO
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