Patent ID: 6834081
Filing Date: 2004-12-21
Classification: H04N

Abstract:
An encoding apparatus for an orientation interpolator node which provides information on the rotation of an object in a 3-dimensional space, the encoding apparatus comprising:a field data input unit for extracting field data to be encoded at present from a key which indicates information on a position on a time axis where a change of rotational and translational movement occurs and key values which indicate rotation information corresponding to the position information, by parsing the orientation interpolator node; an adaptive differential pulse code modulation (ADPCM) processing unit for converting the key value data into a quaternion, and then ADPCM processing the quaternion using rotation differentiation, and differential pulse code modulation (DPCM) processing for the key data; and a quantizing unit for quantizing the key data and key value data and outputting the quantized data.