WO2018209568A1

WO2018209568A1 - Model color adjustment method and system

Info

Publication number: WO2018209568A1
Application number: PCT/CN2017/084560
Authority: WO
Inventors: 王志全; 王皓棉; 曾家东; 沈西优
Original assignee: 深圳市三维人工智能科技有限公司
Priority date: 2017-05-16
Filing date: 2017-05-16
Publication date: 2018-11-22
Also published as: CN110073411A; CN110073411B

Abstract

Provided in the present invention is a model color adjustment method, comprising: acquiring an independent model to be transplanted and a common model to be transplanted, the independent model being provided at a corresponding position of the common model, a connection area being provided between the independent model and the common model; converting the independent model and the common model into two-dimensional images, and acquiring a first color and a second color, the first color being the color of the two-dimensional image of the independent model, the second color being the color of the two-dimensional image of the common model; adjusting the two-dimensional image of the independent model and the two-dimensional image of the common model both into the first color or the second color, to acquire two-dimensional images having a uniform color; and adjusting the color of the connection area into the color of the two-dimensional images having the uniform color. Thus, the colors are unified, so that the resulting model is more visually integrated. The invention can efficiently adjust the color of a model with low cost.

Description

Method and system for color adjustment of a model

Technical field

The present invention relates to the field of model processing technologies, and in particular, to a color adjustment method and system for a model.

Background technique

With the development of computer hardware and software technology, as well as the enhancement of image processing capabilities, 3D models are used more and more, and are used in various industries, such as the use of 3D human body models in the medical field, and the use of 3D human bodies in the apparel field. Models try on clothes and so on.

Usually, in the process of making a real 3D model, a 3D human body scanner is used to generate the model, which is then manually adjusted and corrected. However, the cost of manual processing is high, it takes a long time, and it is difficult to generate in batches. In the prior art, there is a scheme in which the modified part of the model is separately molded and then transplanted to the public model. However, in the process of transplanting, how to unify the color of the modified part and the public model, so that the obtained model is visually more integrated. Become an intractable problem. If manual adjustment of color is used, not only the cost required for manual processing is high, but also it takes a long time, and it is difficult to perform batch generation.

Summary of the invention

It is an object of the present invention to provide a method and system for color adjustment of a lower cost and more efficient model

The object of the present invention is achieved by the following technical solutions:

A color adjustment method for a model, including:

S101: Obtain an independent model to be transplanted and a public model to be transplanted, wherein the independent model is disposed at a corresponding position of the male mold, and a connection region is disposed between the independent model and the male mold;

S102. Convert the independent model and the public model into a two-dimensional image to obtain a first color and a second color, where the first color is a color of the two-dimensional image of the independent model, and the second color is the public color. The color of the two-dimensional image of the mold;

S103. Adjust a two-dimensional image of the independent model and a two-dimensional image of the public model to the first color or the second color to obtain a two-dimensional image of the unified color;

S104. Adjust a color of the connection area to a color of the two-dimensional image of the uniform color.

Preferably, the two-dimensional image of the independent model and the two-dimensional image of the public model are both adjusted to the first color or the second color in the step S103, specifically, the two-dimensional image of the independent model is adjusted to the second color;

The color of the two-dimensional image in which the color of the connection area is adjusted to the uniform color in the step S104 is specifically to adjust the color of the connection area to the second color.

Preferably, the step of converting the independent model and the public model into the two-dimensional image in the step S102 respectively includes:

Spreading the independent model and the points on the male mold in the direction of any axis;

Extracting a vertex color of the independent model, acquiring a two-dimensional image of the independent model; and extracting a vertex color of the public model to obtain a two-dimensional image of the public model.

Preferably, when the unfolding of the independent model and the point on the male mold in the direction of the arbitrary axis is spread out: in the direction of the same axis, the axis is the X axis and the Y axis Or Z axis.

Preferably, in the step S101, the independent model to be transplanted is a model obtained after the part to be transplanted has been separately cut; the public model to be transplanted is a complete model.

The invention discloses a color adjustment system for a model, comprising:

An obtaining module, configured to obtain a separate model to be transplanted and a public model to be transplanted, wherein the independent model is disposed at a corresponding position of the male mold, and a connection region is disposed between the independent model and the male mold;

a conversion extraction module, configured to convert the independent model and the public model into a two-dimensional image to obtain a first color and a second color, wherein the first color is a color of the two-dimensional image of the independent model, and the second color The color of the two-dimensional image of the male model;

The adjustment module is configured to adjust the two-dimensional image of the independent model and the two-dimensional image of the public model to the first color or the second color to obtain a two-dimensional image of the uniform color;

a coloring module for adjusting a color of the connection area to a color of the two-dimensional image of the uniform color.

Preferably, the adjusting module is specifically configured to adjust a two-dimensional image of the independent model to a second color;

The coloring module is specifically configured to adjust a color of the connection area to a second color.

Preferably, the conversion extraction module is specifically configured to:

Extracting vertex colors of the independent model, acquiring a two-dimensional image of the independent model; and extracting The vertex color of the male model acquires a two-dimensional image of the male model.

Preferably, when the points on the independent model and the male mold are respectively spread in the direction of an arbitrary axis: in the direction of the same axis, the axis is an X axis, a Y axis or a Z axis.

Preferably, when the acquiring module acquires: the independent model to be transplanted is a model obtained by separately cutting a part to be transplanted; the public model to be transplanted is a complete model.

The color adjustment method of the model of the present invention includes: S101, obtaining an independent model to be transplanted, and a public model to be transplanted, wherein the independent model is disposed at a corresponding position of the male mold, the independent model and the public model a connection area is provided between them; S102, respectively converting the independent model and the public model into a two-dimensional image, acquiring a first color and a second color, wherein the first color is a color of the two-dimensional image of the independent model, The second color is the color of the two-dimensional image of the male model; S103, adjusting the two-dimensional image of the independent model and the two-dimensional image of the male model to the first color or the second color to obtain a two-dimensional image of the uniform color; S104. Adjust a color of the connection area to a color of the two-dimensional image of the uniform color. In this way, the independent model and the public model can be color-sampled by combining the independent model and the public model, and then the color of the two-dimensional image is unified according to the color obtained by sampling, and then unified according to the color. The color on the two-dimensional image, the connection area between the independent model and the male model is colored, so that the color is unified, the obtained model is visually more integrated, and the color of the model is adjusted at a lower cost and more efficiently. .

DRAWINGS

1 is a flowchart of an image segmentation method based on a genetic algorithm according to an embodiment of the present invention;

2 is a schematic diagram of an image segmentation system based on a genetic algorithm according to an embodiment of the present invention.

detailed description

Although the flowcharts describe various operations as a sequential process, many of the operations can be implemented in parallel, concurrently or concurrently. The order of the operations can be rearranged. Processing may be terminated when its operation is completed, but may also have additional steps not included in the figures. Processing can correspond to methods, functions, procedures, subroutines, subroutines, and the like.

Computer devices include user devices and network devices. The user equipment or the client includes but is not limited to a computer, a smart phone, a PDA, etc.; the network device includes but is not limited to a single network server, a server group composed of multiple network servers, or a cloud computing-based computer or network server. cloud. The computer device can operate alone to carry out the invention, and can also access the network and implement the invention through interoperation with other computer devices in the network. Computer equipment office The network at the site includes, but is not limited to, the Internet, a wide area network, a metropolitan area network, a local area network, a VPN network, and the like.

The terms "first," "second," and the like may be used herein to describe the various elements, but the elements should not be limited by these terms, and the terms are used only to distinguish one element from another. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items. When a unit is referred to as being "connected" or "coupled" to another unit, it can be directly connected or coupled to the other unit, or an intermediate unit can be present.

The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.

The invention will now be further described with reference to the drawings and preferred embodiments.

As shown in FIG. 1 , a color adjustment method of a model is disclosed in this embodiment, including:

In this way, the independent model and the public model can be color-sampled by combining the independent model and the public model, and then the color of the two-dimensional image is unified according to the color obtained by sampling, and then unified according to the color. The color on the two-dimensional image, the connection area between the independent model and the male model is colored, so that the color is unified, the obtained model is visually more integrated, and the color of the model is adjusted at a lower cost and more efficiently. .

The cost of manual processing is high and it takes a long time. In the embodiment, the technician develops a partitioning model, that is, the partitioning model, that is, on the basis of the male mold, the required adjusted parts are separately fabricated, and then transplanted to the corresponding parts of the male mold to form a desired 3D. model. For example, select a finished face model (independent model), cut the face of the broom and put it on Prepare the face position of the male model and synthesize a complete head model. After the synthesis, the skin color needs to be adjusted, and the colors of the public model and the face model are unified, so that the obtained model is more visually integrated. Therefore, the above color adjustment method is needed to be faster, more efficient, and more accurate. Adjust the color.

According to one example, in the step S101, the independent model to be transplanted is a model obtained after the part to be transplanted has been separately cut; the public model to be transplanted is a complete model.

This allows the transplanted independent model to be cut separately and can be easily transplanted. For example, when only the face part of the male model needs to be modified, the face part can be cut from the model to obtain a separate model of the face. . In order to facilitate uniform color, the male model can use the complete model without cutting, so it is more convenient to color sample when adjusting the color.

According to another example, the step of converting the independent model and the public model into a two-dimensional image in the step S102 respectively includes:

Specifically, when the independent model and the points on the male mold are spread out in the step of spreading in the direction of any axis: in the direction of the same axis, the axis is the X axis, the Y axis or the Z axis. Of course, it is also possible to spread in the direction of other axes, and select the X axis, the Y axis or the Z axis. The direction of these axes is more clear and convenient for spreading. In this embodiment, the left hand coordinate system is selected, and the Z axis can be expanded. When spreading, you can expand the 3D model into a flat image, so you can get the color of the model more accurately. Because color sampling on the 3D model is inconvenient, and the color obtained by 3D color sampling is often inaccurate, color sampling in this way can accurately obtain the color of the model. When the points on the independent model and the male model are spread out in the direction of any axis, the axes taken are the same axis, which facilitates the comparison of the sampled colors, and the control produces fewer variables.

In the step of extracting the vertex color of the independent model and the public model, since the model is rendered by the method of vertex shading, the vertex color of the independent model and the public model can be obtained according to the characteristics of the model. Gouraud shading is a more popular rendering method. It is more advanced than planar shading. It provides a set of individual tonal values for each vertex of a 3D object, and smoothes and fuses the colors of each vertex. , for the polygon with a gradient, the object it renders has a very rich color and smooth color change. In this way, a two-dimensional image can be generated, which is quick and convenient and accurate.

According to another example, the two-dimensional image of the independent model and the two-dimensional image of the public model are both adjusted to the first color or the second color in step S103, specifically, the two-dimensional image of the independent model is adjusted to the second colour;

In step S104, the color of the connection area is adjusted to the color of the two-dimensional image of the uniform color, specifically, the color of the connection area is adjusted to the second color.

As shown in FIG. 2 and FIG. 3, FIG. 2 is a model before color adjustment, 80 is a male mold, 90 is an independent model, and a connection area 85 is between the male mold 80 and the independent model 90, and FIG. 3 is a color adjustment. The model adjusts the color of the connected area to match the public model. This also adjusts the color of the connected area to the same color as the male model, which makes the transition area better and the visual effect looks more integrated.

As shown in FIG. 4, an embodiment of the present invention discloses a color adjustment system for a model, including:

The obtaining module 201 is configured to acquire an independent model to be transplanted and a public model to be transplanted, wherein the independent model is disposed at a corresponding position of the male mold, and a connection region is provided between the independent model and the male mold ;

The conversion extraction module 202 is configured to convert the independent model and the public model into a two-dimensional image to obtain a first color and a second color, where the first color is a color of the two-dimensional image of the independent model, and the second The color is the color of the two-dimensional image of the male model;

The adjusting module 203 is configured to adjust the two-dimensional image of the independent model and the two-dimensional image of the public model to the first color or the second color to obtain a two-dimensional image of the unified color;

The coloring module 204 is configured to adjust a color of the connection area to a color of the two-dimensional image of the uniform color.

The cost of manual processing is high and it takes a long time. In the embodiment, the technician develops a partitioning model, that is, the partitioning model, that is, on the basis of the male mold, the required adjusted parts are separately fabricated, and then transplanted to the corresponding parts of the male mold to form a desired 3D. model. For example, a completed face model (independent model) is selected, and the face of the broom is cut out, placed on the face of the well-formed male model, and a complete head model is synthesized. After the synthesis, it is necessary to adjust the skin color, unify the color of the male model and the face model, and let the visual of the obtained model It is more integrated, so you need to use the above color adjustment method to adjust the color more quickly, efficiently and accurately.

According to one example, when the obtaining module 201 acquires: the independent model to be transplanted is a model obtained after the part to be transplanted has been separately cut; the public model to be transplanted is a complete model.

According to another example, the conversion extraction module 202 is specifically configured to:

Specifically, when the points on the independent model and the male mold are respectively spread in the direction of an arbitrary axis: in the direction of the same axis, the axis is an X axis, a Y axis, or a Z axis.

Of course, it is also possible to spread in the direction of other axes, and select the X axis, the Y axis or the Z axis. The direction of these axes is more clear and convenient for spreading. In this embodiment, the left hand coordinate system is selected, and the Z axis can be expanded. When spreading, you can expand the 3D model into a flat image, so you can get the color of the model more accurately. Because color sampling on the 3D model is inconvenient, and the color obtained by 3D color sampling is often inaccurate, color sampling in this way can accurately obtain the color of the model. When the points on the independent model and the male model are spread out in the direction of any axis, the axes taken are the same axis, which facilitates the comparison of the sampled colors, and the control produces fewer variables.

According to another example, the adjustment module 203 is specifically configured to adjust the two-dimensional image of the independent model to the second color;

The coloring module 204 is specifically configured to adjust a color of the connection area to a second color.

This also adjusts the color of the connected area to the same color as the male model, which makes the transition area better and the visual effect looks more integrated.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims

A method for color adjustment of a model, comprising:

S101: Obtain an independent model to be transplanted and a public model to be transplanted, wherein the independent model is disposed at a corresponding position of the male mold, and a connection region is disposed between the independent model and the male mold;

S102. Convert the independent model and the public model into a two-dimensional image to obtain a first color and a second color, where the first color is a color of the two-dimensional image of the independent model, and the second color is the public color. The color of the two-dimensional image of the mold;

S103. Adjust a two-dimensional image of the independent model and a two-dimensional image of the public model to the first color or the second color to obtain a two-dimensional image of the unified color;

S104. Adjust a color of the connection area to a color of the two-dimensional image of the uniform color.
The color adjustment method according to claim 1, wherein the two-dimensional image of the independent model and the two-dimensional image of the public model are both adjusted to the first color or the second color in the step S103, specifically The two-dimensional image of the model is adjusted to a second color;

The color of the two-dimensional image in which the color of the connection area is adjusted to the uniform color in the step S104 is specifically to adjust the color of the connection area to the second color.
The color adjustment method according to claim 1, wherein the step of converting the independent model and the public model into a two-dimensional image in the step S102 comprises:

Spreading the independent model and the points on the male mold in the direction of any axis;

Extracting a vertex color of the independent model, acquiring a two-dimensional image of the independent model; and extracting a vertex color of the public model to obtain a two-dimensional image of the public model.
The color adjustment method according to claim 3, wherein the step of spreading the points on the independent model and the male mold in the direction of the arbitrary axis is spread: in the direction of the same axis The above is performed, and the axis is an X axis, a Y axis, or a Z axis.
The color adjustment method according to claim 1, wherein in the step S101, the independent model to be transplanted is a model obtained by separately cutting a portion to be transplanted; Complete model.
A color adjustment system for a model, comprising:

An obtaining module, configured to obtain a separate model to be transplanted and a public model to be transplanted, wherein the independent model is disposed at a corresponding position of the male mold, and a connection region is disposed between the independent model and the male mold;

a conversion extraction module, configured to convert the independent model and the public model into a two-dimensional image to obtain a first color and a second color, where the first color is a color of the two-dimensional image of the independent model, The second color is a color of the two-dimensional image of the male mold;

The adjustment module is configured to adjust the two-dimensional image of the independent model and the two-dimensional image of the public model to the first color or the second color to obtain a two-dimensional image of the uniform color;

a coloring module for adjusting a color of the connection area to a color of the two-dimensional image of the uniform color.
The color adjustment system according to claim 6, wherein the adjustment module is specifically configured to adjust a two-dimensional image of the independent model to a second color;

The coloring module is specifically configured to adjust a color of the connection area to a second color.
The color adjustment system according to claim 6, wherein the conversion extraction module is specifically configured to:

Spreading the independent model and the points on the male mold in the direction of any axis;

Extracting a vertex color of the independent model, acquiring a two-dimensional image of the independent model; and extracting a vertex color of the public model to obtain a two-dimensional image of the public model.
The color adjustment system according to claim 8, wherein said separating said points on said independent model and said male mold are respectively spread in the direction of an arbitrary axis: in the direction of the same axis, said axis It is the X axis, the Y axis or the Z axis.
The color adjustment system according to claim 6, wherein the acquisition module acquires: the independent model to be transplanted is a model obtained by separately cutting a portion to be transplanted; and the public model to be transplanted For the complete model.