Title:
IMAGE PROCESSOR AND METHOD THEREFOR
Document Type and Number:
Japanese Patent JP3630582
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To automatically generate the shape model of an optional object in a complicated shape such as the head part of a human while satisfying practical accuracy and processing speed.
SOLUTION: By providing an image fetch part 0, a feature point extraction part 1, a three-dimensional motion information extraction part 2, an inter-image linear connection calculation part 3 and a distance information detection part 4, the three- dimensional shape model of an object is automatically generated. The image fetch part 0 fetches the time sequential image (moving image sequence) of the object and the feature point extraction part 1 performs feature point extraction required for preparing the model of the object. The three-dimensional motion information extraction part 2 correlates the extracted feature points with each other between successive images and obtains the motion information of the object, that is the change information of a three-dimensional position/posture, from the position coordinate information of the feature point group. The inter-image linear connection calculation part 3 obtains a linear connection restraint and the direction of a light source established among the time sequential images. The distance information detection part 4 decides the three-dimensional shape of the object by obtaining distances at individual points in the image and the normal vector of an object surface by searching them corresponding to geometrical luminance restraint conditions.
Inventors:
Jun Maki
Application Number:
JP6540799A
Publication Date:
March 16, 2005
Filing Date:
March 11, 1999
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G01B11/00; G01B11/26; G06T1/00; G06T7/00; H04N13/02; G06T7/60; (IPC1-7): G06T1/00; G01B11/00; G01B11/26; H04N13/02
Domestic Patent References:
| JP10320588A |
Other References:
牧淳人,光源方向の推定とGeotensity拘束による3次元形状獲得,電子情報通信学会技術研究報告(PRMU98-132),日本,電子情報通信学会,1998年11月13日,Vol.98,No.395,71-78
MAKI A.,WATANABE H.,WILES C.,Geotensity: combining motion andlighting for 3D surface reconstruction,Computer Vision.1998. SixthInternational Conference on,米国,IEEE,1998年 1月 4日,1053-1060
MAKI A.,WATANABE H.,WILES C.,Geotensity: combining motion andlighting for 3D surface reconstruction,Computer Vision.1998. SixthInternational Conference on,米国,IEEE,1998年 1月 4日,1053-1060
Attorney, Agent or Firm:
Tamako Tsutada
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita
Husband
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita
Husband
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