Color tone setting device, color tone setting method, program, and recording medium for pigment restoration ink composition for skin
A color matching device and method using tristimulus values address the challenge of achieving consistent and natural-looking pigmentation reconstruction by automating ink composition selection based on target color data, improving patient satisfaction.
Patent Information
- Application Number
- JP2024108673
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2026-01-19
AI Technical Summary
Achieving a natural-looking finish and consistent color matching for pigmentation reconstruction, such as in breast cancer patients, alopecia, and vitiligo, is difficult due to variations among patients and the reliance on medical professionals' experience.
A color matching device and method using tristimulus values to link color data with ink composition data, enabling automatic selection of ink composition based on target color data for pigment reconstruction.
Enables consistent and natural-looking pigmentation reconstruction by allowing easy determination of ink composition blends, independent of medical professional experience, ensuring high patient satisfaction.
Smart Images

Figure 2026008188000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a toning setting device, a toning setting method, a program, and a recording medium for a pigmentation restoration ink composition for skin. [Background technology]
[0002] In surgical treatment of breast cancer patients, when the nipple and areola are removed, pigmentation reconstruction of the nipple and areola is considered important from the perspective of quality of life. In pigmentation reconstruction, doctors typically blend ink ingredients that can be used on the skin and match the ink composition to the patient's desired color. However, achieving a natural-looking finish and high patient satisfaction can be extremely difficult for inexperienced doctors. Furthermore, even for experienced doctors, consistent color matching for various patients can be difficult, as the color of the entire breast, nipple, and areola varies from patient to patient. Summary of the Invention [Problem to be solved by the invention]
[0003] This problem is not limited to breast cancer patients, but also applies to patients with alopecia of the eyebrows and other areas associated with anti-cancer drug treatment, and patients with pigmentation disorders such as vitiligo.
[0004] Therefore, the present invention aims to provide a system that can easily prepare an ink composition capable of restoring pigmentation to a color similar to that of a healthy areola and nipple, without being affected by the doctor's experience. [Means for solving the problem]
[0005] In order to achieve the above object, the present invention provides a color matching device for applying an ink composition for pigment reconstruction to the skin of a living body, A storage unit, a color data acquisition unit, and a color matching setting unit are included, The storage unit color matching data in which tristimulus values and ink composition data corresponding to the tristimulus values are linked together; The color data acquisition unit The tristimulus values of the color you want to reconstruct on the subject's skin are acquired as target color data. The color matching setting unit Based on the toning data and the target color data, ink composition data corresponding to the tristimulus values of the target color data is selected, and this is used as toning setting data for the pigment reconstruction ink composition to be used in the pigment reconstruction site on the skin of the subject. It is characterized by:
[0006] The method for presenting a toned color of a pigment reconstruction ink composition to the skin of a living body according to the present invention comprises the steps of: Using the color matching device for the ink composition for pigment reconstruction on the skin of a living body according to the present invention, A color data acquisition step and a color matching setting step are included. The color data acquisition step includes: A step of acquiring tristimulus values of a color to be reconstructed on the subject's skin as target color data; The color matching setting step includes: a step of selecting ink composition data corresponding to the tristimulus values of the target color data based on the toning data in which tristimulus values are linked to ink composition data corresponding to the tristimulus values and the target color data, and setting the selected ink composition data as toning setting data for the pigment reconstruction ink composition to be used in the pigment reconstruction area of the skin of the subject. It is characterized by:
[0007] The program of the present invention is characterized by causing a computer to execute the method for setting the color tone of an ink composition for dye reconstruction of the present invention.
[0008] The recording medium of the present invention is computer-readable and stores the program of the present invention. [Effects of the Invention]
[0009] The color matching device and color matching method of the present invention can obtain color matching setting data for a pigment reconstruction ink composition that achieves a desired color. Because the color matching setting data is ink composition data, the target color can be achieved simply by blending an ink composition based on the color matching setting data. Thus, the present invention can provide an ink composition suited to each subject, for example, without being influenced by the physician's experience, simply by obtaining the tristimulus values of the color to be restored. Furthermore, because the resulting ink composition is blended based on the color matching setting data obtained from the tristimulus values of the color to be restored, as described above, a natural finish can be achieved when applied to the subject's pigment reconstruction area, resulting in high subject satisfaction. [Brief explanation of the drawings]
[0010] [Figure 1] FIG. 1 is a block diagram showing an example of a color matching setting device according to the first embodiment. [Figure 2] FIG. 2 is a schematic diagram illustrating an example of a storage unit according to the first embodiment. [Figure 3] FIG. 3 is a block diagram showing another example of the color matching setting device according to the first embodiment. [Figure 4] FIG. 4 is a block diagram showing another example of the hardware configuration of the color matching setting device according to the first embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0011] The present invention includes, for example, the following aspects.
[0012] Tristimulus values are a way of representing colors using the XYZ color system, which is recognized as the standard by the International Commission on Illumination (CIE). To standardize color display, the CIE defines the primary colors [R], [G], and [B] as single-wavelength light: red primary [R] = 700 nm, green primary [G] = 546.1 nm, and blue primary [B] = 435.8 nm. However, it is known that there are colors that cannot be expressed by mixing [R], [G], and [B], and the XYZ color system is a color system that solves this problem. In the XYZ color system, [X], [Y], and [Z] are called primary stimuli, and the numerical values represented by XYZ, which represent the amount of color mixing of the three primary stimuli [X], [Y], and [Z], are called "tristimulus values." Tristimulus values (the amount of color mixing of the three primary stimuli) can also be expressed, for example, as the ratio of tristimulus values (the tristimulus color mixing ratio). The color mixture ratios x, y, and z of the tristimulus values X, Y, and Z can also be expressed by the following formulas, for example. x=X / (X+Y+Z) y=Y / (X+Y+Z) z=Z / (X+Y+Z) x+y+z=1
[0013] As mentioned above, the tristimulus values and the ratios of the tristimulus values have been approved as the standard color system of the CIE, and therefore, a colorimeter of the XYZ color system can be used for the measurements, and commercially available products are available. When measuring the tristimulus values of the skin using the colorimeter as described below, it is preferable to perform the measurements without applying excessive pressure to the skin, and specifically, it is preferable to apply pressure that brings the measuring part of the colorimeter into contact with the skin.
[0014] Embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments. In the following drawings, the same parts are designated by the same reference numerals. The descriptions of the embodiments can be used interchangeably unless otherwise specified. The configurations of the embodiments can be combined unless otherwise specified.
[0015] [Embodiment 1] An example of a toning device and a toning method for pigment reconstruction ink compositions for use on living body skin according to the present invention will be described with reference to the drawings. In this embodiment, the toning of a pigment reconstruction ink composition for use in areola or nipple reconstruction will be described as a specific example, but the present invention is not limited thereto.
[0016] (Toning setting device) 1 is a block diagram showing an example of the configuration of a color matching setting device 10 according to the present embodiment. The color matching setting device 10 includes a storage unit 11, a color data acquisition unit 12, and a color matching setting unit 13. The color matching setting device 10 may further include an output unit 14 or an input unit, for example.
[0017] The storage unit 11 has toning data, and the toning data is linked to tristimulus values and ink composition data corresponding to the tristimulus values.
[0018] FIG. 2 is a schematic diagram showing an example of color matching data in the storage unit 11. As shown in FIG. 2, tristimulus values (X, Y, Z) are linked to the corresponding ink composition data. The ink composition data is linked to, for example, the types of ink ingredients and their blending ratios. The ink ingredients are agents used to prepare the ink composition, and include coloring matter such as dyes. As a specific example, the tristimulus value A(X A , Y A , Z A The color represented by the tristimulus value B(X B , Y B , Z B ) is color matching data that indicates that the color represented by (a) can be reproduced by an ink composition in which ink raw material 2, ink raw material 3, and ink raw material 5 are mixed in a mixing ratio b.
[0019] In the example of FIG. 2, tristimulus values (X, Y, Z) are shown as color information, but the present invention is not limited to this, and may be, for example, a ratio of the tristimulus values (x, y, z) as described above.
[0020] The color data acquisition unit 12 acquires the tristimulus values of the color to be reconstructed on the subject's skin as target color data. In the color matching setting device 10, the acquisition of the target color data by the color data acquisition unit 12 may be, for example, by a user inputting the target color data into the color matching setting device 10, or by receiving the target color data from an external source via a communication network.
[0021] The color matching setting unit 13 selects ink composition data corresponding to the tristimulus values of the target color data based on the color matching data in the storage unit 11 and the target color data (tristimulus values) acquired by the color data acquisition unit 12. The selected ink composition data corresponds to the color represented by the target color data, and therefore can be used as color matching setting data for the pigment reconstruction ink composition to be used on the pigment reconstruction site of the subject.
[0022] As described above, the color matching setting device 10 may further include an output unit 14. The output unit 14 outputs, for example, color matching setting data for the dye reconstruction ink composition selected by the color matching setting unit 13. The color matching setting data may be output to a display unit of the color matching setting device 10, or may be transmitted to an external terminal via a communication network. The display unit may be, for example, a monitor. The external terminal is not particularly limited and may be, for example, a mobile phone such as a smartphone, a tablet, or a PC.
[0023] (Toning setting method) The method for setting the color of the pigmentation restoration ink composition for the skin of a living body according to the present invention comprises, as described above, The method uses the toning device for pigmentation restoration ink composition for living body skin of the present invention, and includes a color data acquisition step and a toning setting step. An example of a method using the toning setting device 10 of the present embodiment 1 will be described below.
[0024] The color data acquisition step is a step of acquiring the tristimulus values of the color to be restored on the subject's skin as target color data. The color data acquisition step can be performed by the color data acquisition unit 12 of the color setting device 10.
[0025] In surgical procedures for breast cancer patients in which the nipple and / or areola have been removed, the breast is reconstructed and pigment reconstruction is performed in the areas that will become the nipple and / or areola in the reconstructed breast (i.e., the pigmented reconstruction areas).
[0026] The tristimulus values of the color to be reconstructed in the pigmented reconstruction area can be, for example, values measured for a reference site on the subject's skin. If the subject has undergone resection of one breast, the tristimulus values of the reference site may be measured, for example, using the areola (also referred to as the healthy areola) and / or nipple (also referred to as the healthy nipple) of the other breast (also referred to as the healthy breast) as the reference site. Alternatively, the tristimulus values of the reference site may be measured before resection, using the areola and / or nipple of the subject's breast before resection as the reference site.
[0027] The tristimulus values may also be values measured on a reference site of a third party other than the subject. For example, if the subject does not want the color of their own unresected areola and / or nipple, or their own pre-resection areola and / or nipple, tristimulus values measured on a reference site (areola and / or nipple) of a third party can also be used.
[0028] Furthermore, the tristimulus values may be values measured on an artificial object such as a colored sheet, in addition to values measured on the skin of a living body, as described above.
[0029] The color matching setting step is a step of selecting ink composition data corresponding to the tristimulus values of the target color data based on the color matching data and the target color data, and setting the selected ink composition data as color matching setting data for the pigmentation reconstruction ink composition to be used on the pigmentation reconstruction site on the subject's skin. The color matching setting step can be performed by the color matching setting unit 13 of the color matching setting device 10.
[0030] As described above, the color matching data in the storage unit 11 is linked to tristimulus values and ink composition data. Therefore, it is possible to select ink composition data corresponding to the tristimulus values of the acquired target color data, that is, the type of ink raw materials and their blending ratio. As shown in FIG. 2, for example, if the tristimulus values (X, Y, Z) of the target color data are related to the tristimulus value A (X A , Y A , Z A ), the ink composition data that can realize the color of the tristimulus value A is a combination of ink raw materials, i.e., a combination of ink raw material 1, ink raw material 2, and ink raw material 4, and their blending ratio a.
[0031] By formulating an ink composition based on the ink composition data selected in this way, it is possible to realize a color represented by the tristimulus values of the target color data using the ink composition.
[0032] The dye reconstruction ink composition color matching method of this embodiment may further include, for example, an output step. The output step outputs color matching setting data for the dye reconstruction ink composition selected in the color matching setting step. If the color matching device 10 has a display unit, the color matching setting data may be output (displayed) on the display unit, or may be output (transmitted) to the external terminal via a communication network.
[0033] Thus, according to the present invention, the combination and blending ratio of ink ingredients for formulating a pigment reconstruction ink composition that can reconstruct a target color on the skin can be easily determined simply by using the tristimulus values for the target color.
[0034] Furthermore, even when a formulated ink composition is applied to a skin area to be repigmented, fading typically occurs over time, so retouching with the ink composition is performed before complete fading. However, because the color of the skin area to be repigmented differs before the initial application and after fading, if the ink composition is to be applied again after fading, it is necessary to re-mix the pigment reconstruction ink composition. According to the present invention, as described above, since the color matching setting data can be easily obtained, even if color matching is required every time a retouch is performed during pigment reconstruction, color matching can be performed without burdening the doctor or patient.
[0035] The pigment reconstruction ink composition formulated based on the toning setting data obtained by the present invention may be used, for example, by applying it to the surface of the skin, or may be used as a medical tattoo that is inserted into the skin (e.g., the dermis).
[0036] (Variation 1) As described above, the color matching setting device of this embodiment may be connected to an external terminal via a communication network. Fig. 3 is a block diagram showing an example of the configuration of this embodiment. As shown in Fig. 3, the color matching setting device 10 can be connected to one or more terminals 20 via a communication network 30.
[0037] In this embodiment, the tristimulus values of the target color data are input from an external terminal 20 to the color matching setting device 10 via a communication network 30, and the color matching setting data can be output from the color matching setting device 10 to the external terminal 20.
[0038] (Variation 2) In the present invention, the site to be pigmented is not limited to the areola or nipple, as exemplified above. The present invention can be used for pigmentation restoration in patients with vitiligo and patients with alopecia associated with chemotherapy, such as anticancer drug administration.
[0039] When the subject is a patient with vitiligo, for example, the tristimulus values of a site other than the vitiligo on the subject's skin can be measured and used as the target color data.
[0040] When the subject is a patient with alopecia, for example, the tristimulus values of a part of the subject's head where hair is present can be measured and used as the target color data.
[0041] [Embodiment 2] In the present invention, the ink composition data is not particularly limited, and can be constructed, for example, as follows.
[0042] The ionic composition is, for example, a composition containing one type of ink raw material or two or more types of ink raw materials. Since the present invention is a technology used for skin pigmentation restoration, the ink raw material is preferably an agent that can be used on the skin of a living body. The living body is, for example, a human or a non-human animal, preferably a human. The coloring component of the ink raw material may be, for example, a pigment or a dye. The coloring component contained in the ink raw material may be, for example, one type or two or more types. The ink raw material may be, for example, already toned to a pink, brown, flesh color, etc., or a commercially available product may be used.
[0043] A plurality of types of ink raw materials are prepared, and an arbitrary number (n, n is a positive integer greater than or equal to 1) of ink raw materials are mixed in an arbitrary blending ratio to prepare a plurality of ink compositions. Then, the tristimulus values (X, Y, Z) of each of the plurality of ink compositions are measured. Then, for each of the plurality of ink compositions, the tristimulus values, the types of ink raw materials used, and the blending ratios of the ink raw materials are linked. This allows the ink composition data to be constructed as shown in Figure 2.
[0044] When the tristimulus values of the ink composition are measured using the above-mentioned colorimeter, the ink may be applied to paper specifically for color measurement, and the applied paper may be measured.
[0045] [Embodiment 3] In the color matching setting device of the present invention, for example, the color data acquisition unit 12 may include a wavelength information acquisition unit and a tristimulus value calculation unit based on the wavelength information. According to this embodiment, for example, the wavelength information acquisition unit may acquire wavelength information measured for the reference site of the skin, and the tristimulus value calculation unit may calculate the tristimulus values of the reference site based on the wavelength information.
[0046] The wavelength information is, for example, the reflectance for each wavelength of the reference site, and the wavelength is, for example, in the range of 360 nm to 740 nm. The tristimulus calculation unit can calculate the tristimulus values of the reference site from, for example, the reflectance for each wavelength of the reference site and calculation coefficients for tristimulus values. The calculation coefficients can include, for example, the spectral distribution of illumination and color matching functions.
[0047] [Embodiment 4] 4 shows a block diagram of the hardware configuration of the color matching setting device 10 in the first embodiment. The color matching setting device 10 includes, for example, a CPU (Central Processing Unit) 41, a memory 42, a bus 43, an input unit 44, a display unit 45, a communication device 46, and a storage unit 11. The components of the color matching setting device 10 are interconnected via their respective interfaces (I / F) through the bus 43.
[0048] The CPU 41 is a processor that controls the entire color matching setting device 10, and is not limited to a CPU and may be another processor. In the color matching setting device 10, the CPU 41 executes, for example, the program of the present invention and other programs, and also reads and writes various information.
[0049] The color matching setting device 10 can be connected to a communication network 30 by, for example, a communication device 46 connected to a bus 43, and can also be connected to an external terminal 20 via the communication network 30. The method of connection between the color matching setting device 10 and the terminal 20 is not particularly limited, and a wireless connection is preferred, for example. The communication network 30 is not particularly limited, and any known communication network can be used, such as the Internet, a telephone line, a LAN (Local Area Network), or WiFi (Wireless Fidelity).
[0050] The memory 42 includes, for example, a main memory, which is also referred to as a primary storage device. When the CPU 41 performs processing, for example, the memory 42 reads a program 47 stored in an auxiliary storage device (described later), and the CPU 41 receives data from the memory 42 and executes the program 47. The program 47 is, for example, various operating programs such as the program of the present invention. The main memory is, for example, a RAM (random access memory). The memory 42 further includes, for example, a ROM (read only memory).
[0051] The storage unit 11 is also referred to as an auxiliary storage device, for example, in contrast to the main memory (primary storage device). The storage unit 11 includes, for example, a storage medium and a drive for reading and writing data from and to the storage medium. The storage medium is not particularly limited and may be internal or external, and examples thereof include a hard disk (HD), CD-ROM, CD-R, CD-RW, MO, DVD, flash memory, and memory card, while the drive is not particularly limited. The storage unit 11 may also be exemplified by a hard disk drive (HDD) in which a storage medium and a drive are integrated. For example, as described above, the storage unit 11 stores the program 47, and when the CPU 41 executes the program 47, the memory 42 reads the program 47 from the storage unit 11, as described above.
[0052] The input unit 44 is, for example, an input device such as a touch panel, a keyboard, a scanner, etc. The display unit 45 is, for example, a display, and specific examples include display devices such as an LED display and a liquid crystal display.
[0053] [Embodiment 6] The program of the present invention is a program that can execute the method for setting the color toning of the dye reconstruction ink composition of the present invention on a computer. Alternatively, the program of this embodiment may be recorded on, for example, a computer-readable recording medium. The recording medium is not particularly limited, and examples thereof include the storage media described above.
[0054] Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above-described embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention. [Industrial Applicability]
[0055] According to the present invention, it is possible to obtain color matching setting data for a pigment reconstruction ink composition that achieves a desired color. Since the color matching setting data is ink composition data, simply blending an ink composition based on the color matching setting data makes it possible to achieve the desired pigment reconstruction color. Thus, according to the present invention, simply obtaining the tristimulus values of the color to be reconstructed makes it possible to provide an ink composition suitable for each subject, without being influenced by, for example, the experience of a physician. Furthermore, since the resulting ink composition is blended based on the color matching setting data obtained from the tristimulus values of the color to be reconstructed, a natural finish can be achieved, for example, when applied to the subject's area to be pigmented and reconstructed, resulting in high subject satisfaction.
Claims
1. A storage unit, a color data acquisition unit, and a color matching setting unit are included, The storage unit color matching data in which tristimulus values and ink composition data corresponding to the tristimulus values are linked together; The color data acquisition unit The tristimulus values of the color you want to reconstruct on the subject's skin are acquired as target color data. The color matching setting unit Based on the toning data and the target color data, ink composition data corresponding to the tristimulus values of the target color data is selected, and this is used as toning setting data for the pigment reconstruction ink composition to be used in the pigment reconstruction site on the skin of the subject.
10. A device for setting the color of an ink composition for pigment reconstruction on the skin of a living body, comprising:
2. the pigment reconstruction ink composition is an ink composition for pigment reconstruction of the nipple or areola, the target color data is tristimulus values of a reference site on the subject's skin; 2. The dye reconstruction ink composition color setting device of claim 1, wherein the reference site is a nipple or areola of the subject's unresected breast, or a nipple or areola of the subject's pre-resection breast.
3. 3. The apparatus for setting color toning for a dye reconstruction ink composition according to claim 1, wherein the ink composition data is a combination of types of ink ingredients and their blending ratios.
4. The dye reconstruction ink composition color setting device according to claim 1 , wherein the tristimulus values are a ratio of tristimulus values.
5. The device for setting the color of the pigmentation reconstruction ink composition for the skin of a living body according to any one of claims 1 to 4 is used, A color data acquisition step and a color matching setting step are included. The color data acquisition step includes: A step of acquiring tristimulus values of a color to be reconstructed on the subject's skin as target color data; The color matching setting step includes: a step of selecting ink composition data corresponding to the tristimulus values of the target color data based on the toning data in which tristimulus values are linked to ink composition data corresponding to the tristimulus values and the target color data, and setting the selected ink composition data as toning setting data for the pigment reconstruction ink composition to be used in the pigment reconstruction area of the skin of the subject. A method for setting the color of a pigment reconstruction ink composition for the skin of a living body, comprising:
6. the pigment reconstruction ink is a nipple or areola pigment reconstruction ink; the target color data is tristimulus values of a reference site on the subject's skin; 6. The method for setting a color tone of a dye reconstruction ink composition according to claim 5, wherein the reference site is a nipple or areola of the subject's unresected breast, or a nipple or areola of the subject's pre-resection breast.
7. 7. The method for setting the color tone of a dye reconstruction ink composition according to claim 5, wherein the ink composition data is a combination of types of ink ingredients and their blending ratios.
8. The method for setting the color tone of a dye reconstruction ink composition according to claim 5 , wherein the tristimulus values are a ratio of tristimulus values.
9. A program causing a computer to execute the method for setting the color tone of an ink composition for pigmentation reconstruction on the skin of a living body according to any one of claims 5 to 8.
10. A computer-readable recording medium having the program according to claim 9 recorded thereon.