Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation
Reexamination Certificate
1999-01-14
2001-10-30
Nguyen, Phu K. (Department: 2671)
Computer graphics processing and selective visual display system
Computer graphics processing
Graphic manipulation
Reexamination Certificate
active
06310627
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a method for generating a stereoscopic image of a garment when the garment is put on an object such as a person or an animal by the computer graphics and also to a system for generating a stereoscopic image of a garment using such a method.
Conventionally, in the fashion business, there has been proposed a system for generating a simulated image in which a client tries a garment on by combining an image of the client and an image of the garment and allowing the monitoring of a virtual try-on state.
This virtual try-on system employs, for example, a method according to which a plurality of garments to be tried on are actually prepared and photographed to prepare images of the garments, and a try-on image is generated by combining a photographed image of a client and an image of the garment selected by the client by chroma key.
However, with this virtual try-on system, it is necessary to actually prepare garments to be tried on and to photograph the prepared garments to generate the images of the garments to be combined to generate the try-on images. Accordingly, a huge amount of time, labor and cost are required to prepare the images of a great variety of garments, making it difficult to sufficiently meet the market's demand. Further, since the garment images are stationary fixed images, if they are combined with the photographed images of the clients, the combined images strongly look like images obtained by pasting different images together and lack realities such as the state of deformation of the garment when being actually tried on and draping ability. Thus, this system is qualitatively insufficient to provide the monitoring of the virtual try-on state.
If a state where a garment is put on an object can be simulated in a virtual space of the computer graphics to thereby generate a stereoscopic image (three-dimensional image) of the garment, it is quite convenient in, for example, the fashion business, because a variety of try-on states can be monitored in a real manner. These try-on states may include those in which the client hold many poses, the one in which the client's figure has changed, and the one in which the garment is mended. By animating the image of the object having the garment on and simulating the change of the stereoscopic image of the garment according to the movement of the object, the try-on state can be expressed in an animated manner and fashion shows can be held in the virtual space. Further, patterns can be directly prepared using the stereoscopic image of the garment. If this garment stereoscopic image generating system is applied to, for example, the apparel or clothing industry, a system capable of performing a continuous operation from the selection of garment to the preparation of patterns and up to the preparation of garment parts can be built. Such a system is considered to have various applications having high convenience even only in the fashion business.
In recent years, images generated by the computer graphics are frequently used in the animation industry, movie industry and advertisement industry, providing creative images having high reality. In such industries, images simulating the state where the object is actually a garment in the virtual space of the computer graphics is quite useful.
However, as a technique for generating a stereoscopic image of a garment using the computer graphics, only an elemental technique is disclosed in, e.g., Japanese Unexamined Patent Publication No. 8-44785 for generating a stereoscopic image of a garment. An image generating method for generating an image representing a stereoscopic shape of a garment put on an object such as a person or an animal in a realistic manner and a system for generating the stereoscopic image of the garment using such an image generating method have not yet been proposed.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a garment stereoscopic image generation method and system which have overcome the problems residing in the prior art.
According to an aspect of the present invention, a method for generating a three-dimensional image (hereinafter, “3D image”) representing a stereoscopic shape of a garment when the garment is put on an object, comprises:
(a) a first step of generating a 3D image of an object model corresponding to the object;
(b) a second step of generating images of patterns for the garment;
(c) a third step of inputting information on the garment; and
(d) a fourth step of arranging the images of the respective patterns of the garment in corresponding portions of the 3D image of the object model, three-dimensionally deforming the images of the respective patterns by calculating collisional deformations when the respective patterns are pressed against the corresponding portions based on the information on the garment, and generating a stereoscopic image of the garment by connecting the deformed 3D images of the respective patterns based on the information on the garment.
According to another aspect of the present invention, a garment stereoscopic image generating system for generating a 3D image representing a stereoscopic shape of a garment when the garment is put on an object, comprises:
(A) a model image generating means for generating a 3D image of an object model corresponding to the object;
(B) a pattern image generating means for generating images of patterns of the garment;
(C) a garment information input means for inputting information on the garment; and
(D) a garment image generating means for arranging the images of the respective patterns of the garment in corresponding portions of the 3D image of the object model, three-dimensionally deforming the images of the respective patterns by calculating collisional deformations when the respective patterns are pressed against the corresponding portions based on the information on the garment, and generating a stereoscopic image of the garment by connecting the deformed 3D images of the respective patterns based on the information on the garment.
According to still another aspect of the present invention, a try-on image generating system for generating a try-on image representing a state where a client tries a garment on, comprises:
(X) a data terminal unit for permitting a client to input information on the garment, information on the figure of the client and an image of the client;
(Y) a server for generating a try-on image representing a state where the client tries the garment on based on the information on the garment, the information on the figure of the client and the image of the client, and providing the client with the generated try-on image; and
(Z) a communication network for connecting the server and the data terminal unit so as to enable a communication therebetween.
According to yet still another aspect of the present invention, a pattern preparing system for generating a try-on image representing a state where a client tries a garment on, correcting the garment using the try-on image, and preparing patterns of the garment based on an image of the corrected garment, comprises:
(X) a data terminal unit for permitting a client to input information on the garment and information on the figure of the client;
(Y) a server for generating a try-on image representing a state where the client tries the garment on based on the information on the garment, the information on the figure of the client and the image of the client, correcting the garment using the generated try-on image, generating information on the patterns of the garment based on an image of the corrected garment and providing the client with the generated try-on image, and providing the client with the information on the patterns; and
(Z) a communication network for connecting the server and the data terminal unit so as to enable a communication therebetween.
The pattern images of the garment are so deformed as to be put on the object model in the virtual space of the computer graphics, and the stereoscopic image of the garment is generated by co
Kenyon & Kenyon
Nguyen Phu K.
Toyo Boseki Kabushiki Kaisha
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