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Dynamic-state estimating apparatus, dynamic-state estimating method, and program

A technology of dynamic estimation and equipment, applied in computing, image data processing, instruments, etc., can solve complex computing problems and achieve high-performance results

Inactive Publication Date: 2010-03-24
SONY CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, transforming from 3D parameters to affine transform parameters requires complex calculations and is not possible for masking

Method used

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  • Dynamic-state estimating apparatus, dynamic-state estimating method, and program
  • Dynamic-state estimating apparatus, dynamic-state estimating method, and program
  • Dynamic-state estimating apparatus, dynamic-state estimating method, and program

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Embodiment Construction

[0025] figure 1 is a block diagram showing an example of the configuration of the motion estimation system 1 corresponding to the motion estimation device according to the embodiment of the present invention.

[0026] refer to figure 1 The dynamic estimation system 1 of the present embodiment includes a control point setting part 11 (control point setting device), a control point initial color register part 12 (initial control point color information storage device), a control point moving processing part 13 (control point position estimation device), moving control point color acquisition unit 14 (current control point color information acquisition unit), control point color extraction unit 15 (control point color information acquisition unit), and likelihood calculation unit 16 (likelihood calculation unit) .

[0027] The control point setting section 11 sets each control point (three-dimensional control point) for a three-dimensional object model obtained by modeling a th...

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Abstract

A dynamic-state estimating apparatus includes a control-point setting unit setting a plurality of control points for a three-dimensional object model; a control-point color-information acquiring unitacquiring control-point color information indicating the color at a projection position where each control point is projected on an object image; an initial control-point color-information storing unit storing the control-point color information acquired from the object image for initial setup as initial control-point color information; a control-point position estimating unit estimating the position of each control point at a current time; a current control-point color-information acquiring unit acquiring current control-point color information resulting from projection of the control point on the object image at the current time; and a likelihood calculating unit calculating a likelihood by using the current control-point color information and the initial control-point color information.

Description

technical field [0001] The present invention relates to a motion estimation device and a motion estimation method for estimating the motion of a three-dimensional object using, for example, an observed image of the object. The invention also relates to a program executed by the dynamic estimation device. Background technique [0002] Many dynamic estimation methods have been proposed that estimate the position and motion of three-dimensional objects while performing matching between the three-dimensional objects and their observed images. [0003] In a typical method among these dynamic estimation methods, a change in the appearance of an object due to a position change or motion of the object is described in an affine transformation to estimate parameters used in the affine transformation. [0004] However, 3D objects must be rigid bodies. In addition, the transformation from three-dimensional parameters to affine transformation parameters requires complex calculations, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/20
CPCG06T2207/10016G06T7/2046G06T7/251
Inventor 刘玉宇
Owner SONY CORP
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