摘要:
In a method for controlling a posture of an articulated object, a user inputs an initial configuration of the object, a base point, an end point, a target point and a method for updating the posture. It is determined whether the number of joints positioned between the base and the end points is larger than or equal to three. If the number is smaller than or equal to two, it is determined whether the method for updating the posture is a two-segment or three-segment based method or another method for moving an intermediate end point. If the method is two-segment or three-segment based, the number is rechecked. If the number is smaller than or equal to two, the posture is modified according to the two-segment or three-segment based method. If the posture satisfies a predetermined condition, it is displayed on a screen.
摘要:
A high-speed marker-free motion capture, which is capable of powerfully detecting a body's feature points corresponding to a body's end portions such as a head, hands, feet, trunk, arms and legs at a high speed in an illumination change or background or noises of cameras. The extracted feature points of the body can be directly tracked stably in a 3-dimensional space. The position errors of the feature points due to the change of the illumination conditions or a shadow can be automatically corrected and the feature points can be stably tracked with respect to overlapping and disappearance of the feature points. Further, when coordinates of the middle joints are estimated using 3-dimensional coordinates of the extracted feature points of the body, the present invention restores a human model by estimating the positions of the middle joints of the actor with high accuracy without using a motion database, thereby securing the stability and reality of the 3-dimensional motion data required in the motion capture.
摘要:
An apparatus processes collision information in a graphic system, and includes a first storage unit for loading geometry information of primary and secondary object graphics inputted from outside, and outputting the geometry information of the primary object graphics and geometry information of a plurality of secondary object graphics in which a collision detection operation with the primary object graphics is to be performed; a transformer for transforming coordinates of the secondary object graphics to be coincided with a coordinate system that is based on the primary object graphics; a processor for acquiring a collision point, collision presence information, and a collision depth between the primary and the secondary object graphics simultaneously based on the geometry information of the inputted primary object graphics and that of each of the coordinate-transformed secondary object graphics by using a collision detection operation technique determined by the geometry information properties of the primary and the secondary object graphics; a second storage unit for storing the collision information separately, wherein the collision depths before/after update are stored in two areas separately; and an updating unit for updating the collision point and the collision presence information whenever they are newly outputted from the processor, wherein the collision depth is updated based on the result of comparison with the previously stored collision depth.
摘要:
An apparatus processes collision information in a graphic system, and includes a first storage unit for loading geometry information of primary and secondary object graphics inputted from outside, and outputting the geometry information of the primary object graphics and geometry information of a plurality of secondary object graphics in which a collision detection operation with the primary object graphics is to be performed; a transformer for transforming coordinates of the secondary object graphics to be coincided with a coordinate system that is based on the primary object graphics; a processor for acquiring a collision point, collision presence information, and a collision depth between the primary and the secondary object graphics simultaneously based on the geometry information of the inputted primary object graphics and that of each of the coordinate-transformed secondary object graphics by using a collision detection operation technique determined by the geometry information properties of the primary and the secondary object graphics; a second storage unit for storing the collision information separately, wherein the collision depths before/after update are stored in two areas separately; and an updating unit for updating the collision point and the collision presence information whenever they are newly outputted from the processor, wherein the collision depth is updated based on the result of comparison with the previously stored collision depth.
摘要:
A pixel processing element (PPE)-based ray tracing device, includes an internal shared memory for receiving and storing image data to be rendered; a PPE processor for performing parallel ray tracing on the image data on a pixel-by-pixel basis; and a shading processor for accumulatively calculating color values of respective pixels obtained by ray tracing and determining a final color value of each pixel. Further, A PPE-based ray tracing method, includes receiving image data to be rendered on a frame-by-frame basis; storing data having a high frequency of use among the input data in a hierarchical cache; performing parallel ray tracing on image data of each pixel stored in the hierarchical cache on a frame-by-frame basis; calculating a color value of each pixel from first and second rays and a direct ray in accordance with the ray tracing result, and accumulating the color values to obtain the color value of each pixel.
摘要:
Disclosed herein is a method and apparatus for creating a 3D avatar. The method of creating a three dimensional (3D) avatar includes receiving body information of a user and storing the body information in a DataBase (DB), and creating a 3D avatar for the user by modifying standard data, predetermined based on body information about various persons and stored in the DB, based on the body information of the user.
摘要:
Disclosed herein are an apparatus and method for creating animation by capturing the motions of a non-rigid object. The apparatus includes a geometry mesh reconstruction unit, a motion capture unit, and a content creation unit. The geometry mesh reconstruction unit receives moving images captured by a plurality of cameras, and generates a reconstruction mesh set for each frame. The motion capture unit generates mesh graph sets for the reconstruction mesh set and generates motion data, including motion information, using the mesh graph sets. The content creation unit creates three-dimensional (3D) content for a non-rigid object by generating a final transformation mesh set, having a topology similar to that of the reconstruction mesh set, using the motion data.
摘要:
An active headrest has a simple structure so that injuries of the neck and a portion near the neck of a passenger can be effectively prevented in the event of a rear-end collision and forward and rearward inclinations of the active headrest can be adjusted in an ordinary driving state to improve user's convenience and shake of the active headrest with respect to a vehicle seat in an ordinary state can be prevented to suppress noise and vibration and the quality of the vehicle seat and the car can be improved.
摘要:
An active headrest apparatus for a vehicle seat. A contact area in which the upper body of a person who is seated in a car in the event of a rear-end collision of the car is moved backward due to an inertial force and contacts a back plate can be increased, and a distance at which a headrest is moved and rises can be increased so that the function of an active headrest can be more faithfully performed and neck injury of the person who is seated in the car can be prevented to the maximum.
摘要:
An active headrest has a simple structure so that injuries of the neck and a portion near the neck of a passenger can be effectively prevented in the event of a rear-end collision and forward and rearward inclinations of the active headrest can be adjusted in an ordinary driving state to improve user's convenience and shake of the active headrest with respect to a vehicle seat in an ordinary state can be prevented to suppress noise and vibration and the quality of the vehicle seat and the car can be improved.