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Coding device and method for directional interpolator node

A technology of an encoding device and an interpolator, which is applied in the field of composite image encoding, and can solve the problems of rotational position error, no physical meaning, encoding error, etc.

Inactive Publication Date: 2004-12-08
SAMSUNG ELECTRONICS CO LTD
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Problems solved by technology

[0020] However, according to this method, the characterization of a quaternion value, i.e. the physical meaning indicated by the rotational movement, is not shown, so that it is likely that a rotational position error occurs due to a coding error occurring in the coding

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  • Coding device and method for directional interpolator node
  • Coding device and method for directional interpolator node
  • Coding device and method for directional interpolator node

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Embodiment Construction

[0033] The present invention relates to an encoding device and method which can be improved by increasing the redundancy of key values ​​using a quaternion representation method and the data characteristics of an orientation interpolator node for providing rotation information of an object Data transfer efficiency. Also provided is an error measurement method capable of objectively measuring the degree of visual distortion caused by an error occurring in compressed data.

[0034] Fig. 2 is a schematic block diagram of an encoding device for a directional interpolator node according to the first preferred embodiment of the present invention.

[0035]The encoding device according to the present invention comprises: a field data input unit 200 of a directional interpolator node, an adaptive DPCM processing unit for field data, a quantization unit 220, a compressed binary field data output unit 230, and an entropy encoding unit 225. Wherein, the adaptive DPCM processing unit inc...

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Abstract

An encoding / decoding apparatus and method for an orientation interpolator node are provided. The encoding / decoding apparatus for an orientation interpolator node, which provides rotational information of an object in a 3-dimensional space, is formed of "key information" which indicates a time when a rotational movement occurs and "key value information" which indicates a rotational posture corresponding to the time. A predictive coding apparatus is used in the encoding process for compressing the information of the key and key value information. Therefore, in encoding an input orientation interpolator node in an information compression method of a predictive encoding method, the efficiency of encoding is improved and an reverse rotation due to an encoding error from lossy coding can be corrected.

Description

technical field [0001] The present invention relates to composite image coding, and more particularly to a coding device and method for directional interpolator nodes. Background technique [0002] The MPEG-4 Binary Format for Scenes (BIFS) supports keyframe-type animation techniques using an interpolator node consisting of field data in which animation information is represented as a key and key value. This keyframe corresponds to a basic scene in computer animation. In this keyframe method, in order to provide smooth animation, piecewise linear interpolation is required in a large amount of key and key value data. Due to this characteristic, MPEG-4 BIFS improves data transmission efficiency by quantizing field data in each interpolator node and then compressing the data. [0003] An interpolation method using rotation information of an object expresses the rotation information with a rotation axis and a rotation angle. Like the Virtual Reality Modeling Language (VRML), ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T9/00H03M7/36H03M7/40H04N5/262H04N19/00H04N19/50H04N19/59H04N19/91
CPCH04N19/00406H04N7/36H04N7/26313H04N19/00575H04N7/26675H04N19/00545H04N19/25H04N19/46H04N19/503
Inventor 金成珍金道均郑锡润禹相玉
Owner SAMSUNG ELECTRONICS CO LTD
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