CN112150618B - Processing method and device for virtual shaping of canthus - Google Patents

Abstract

The invention discloses a processing method and a device for virtual reshaping of an canthus, which comprises the steps of collecting inner canthus image data in an off-line mode, and calculating the inner canthus angle and the ratio of the average inner canthus length to the width of the canthus according to the inner canthus image outline; dividing the inner canthus into a dolphin shape, a fish mouth shape, a squid tail shape, a round angle shape, a beak shape, a goose head shape and an underline shape according to the inner canthus image contour, the inner canthus angle and the ratio of the average inner canthus length to the eye cleft width; acquiring image data of star inner canthus in an off-line manner, matching the image data with 7 types of images, wherein the dolphin shape, the fish mouth shape and the squid tail shape accord with an aesthetic viewpoint and serve as an inner canthus reshaping recommendation model; acquiring the image data of the inner canthus of the patient in an online state, calculating the angle of the inner canthus of the patient and the ratio of the average length of the inner canthus of the patient to the width of the eye crack, and providing a primary inner canthus reshaping recommendation model; according to the preliminary inner canthus reshaping recommended model, inner canthus angles are used as core variables, n degrees are used as units, and m reshaping schemes are given.

Description

A processing method and device for virtual plastic surgery of the corner of the eye

technical field

The present invention relates to the field of medical aesthetics, in particular to a treatment method and device for virtual plastic surgery of the corner of the eye.

Background technique

The epicanthus, a remnant of skin covering the medial canthus region, is especially common in Asia. This crease usually arises from the bridge of the nose to the skin of the upper eyelid, hiding the tear sac or inner canthus. The epicanthus widens the inner canthus and narrows the palpebral fissure. It is not easy for such patients to rely on double eyelid surgery alone, because without correcting the epicanthus, after creating a new upper eyelid crease, the original epicanthus will be exaggerated, making the eye shape Becomes an unsightly round shape instead of the natural almond shape. After correction, the inner canthus of the eye is revealed. However, due to the variety of epicanthus forms, many people are dissatisfied with the results of epicanthoplasty, even though the surgery enlarges the eyes without visible scarring. Some people even try to restore the epicanthus after epicanthoplasty. There are many surgical techniques to achieve epicanthoplasty, almost all of which focus on how to remove the epicanthus, reveal the epicanthus, and hide the scar. In fact, despite the fact that the epicanthus is completely corrected and the scars are not noticeable, we often encounter patients who are not satisfied with their performance after epicanthoplasty, which in the eyes of the surgeon is a success result. However, most of these patients were dissatisfied with the shape of the revealed abutment. Although it is the shape of the lacrimal sarcoma that affects the appearance of the inner canthus, other patients find that the lacrimal sarcoid is too prominent or too red in color, which may also contribute to an unattractive appearance. Sometimes, full exposure of a lacrimal tumor can give a "threatening" feeling. The reason for the above problems is that the patient cannot see the possible postoperative effect before the operation, and the patient can choose whether to do it or not according to the possible postoperative effect before the operation.

In view of the above problems, the present invention provides a virtual method and device for simulating postoperative effects.

Contents of the invention

The embodiment of the present invention provides a processing method and device for virtual plastic surgery of the corner of the eye. In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. This summary is not an overview, nor is it intended to identify key/critical elements or delineate the scope of these embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to the first aspect of the embodiment of the present invention, a processing method for virtual eye corner shaping is provided, including:

S1: Collect the image data of the inner canthus offline, extract the image contour of the inner canthus according to the image data, and then calculate the angle of the inner canthus and the ratio of the average length of the inner canthus to the width of the eye cleft according to the image contour of the inner canthus;

S2: In the offline state, divide the inner canthus into 7 types according to the image outline of the inner canthus, the angle of the inner canthus, and the ratio of the average length of the inner canthus to the width of the eye fissure, and the 7 types include dolphin-shaped , fish mouth shape, squid tail shape, fillet shape, beak shape, goose head shape and downward slope;

The dolphin shape: the change of the upper eyelid edge is relatively gentle, and a turning line appears at the punctum of the lower eyelid edge;

The fish mouth shape: the angle of the inner canthus is larger, the sharp corners are more obvious, there is no inflection point between the inner canthus and the edge of the eyelid, and the transition is natural and soft;

The squid tail shape: after the inner canthus reaches the lacrimal point, the lid margin is slightly adducted;

The rounded corner type: the angle of the inner canthus is blunt, without obvious inflection point;

The beak shape: the angle of the inner corner of the eye is elongated in appearance;

The goosehead shape: the lower lid margin is smooth, but there is a turning point between the inner canthus and the lid margin at the upper lid margin;

The descending oblique shape: the inner canthus slopes inward and downward, which can appear in any of the above types;

S3: Collect image data of inner canthus of stars offline, match with the 7 types, the dolphin shape, the fish mouth shape, and the squid tail shape conform to the aesthetic point of view, and use it as a recommended model for inner canthus plastic surgery;

S4: collecting image data of the inner canthus of the patient in an online state, and calculating the angle of the inner canthus of the patient and the ratio of the average length of the inner canthus to the width of the eye cleft according to the image data of the patient's inner canthus;

S5: According to the angle of the inner canthus of the patient, the ratio of the average length of the inner canthus to the width of the eye cleft, and the recommended model of inner canthus surgery, a preliminary inner canthus plastic surgery recommendation model is given;

S6: According to the preliminary inner canthus plastic surgery recommendation model, with the inner canthus angle as the core variable and n° as the unit, m kinds of plastic surgery schemes are given.

Preferably, the angle of the canthus is 14°-67°, and the ratio of the average length of the inner canthus to the width of the eye fissure is a dimensionless value of 0.16-0.22.

Preferably, according to the angle of the inner canthus and the ratio of the average length of the inner canthus to the width of the eye fissure, the following specific definitions are given for the seven types,

The dolphin shape: the inner canthus angle is 34.9°-46.9°, with an average value of 42.0°, and the average ratio of inner canthus length to eye fissure width is 0.196;

The fish mouth shape: the inner canthus angle is 42.0-67.0°, the average value is 49.5°, and the average ratio of the inner canthus length to the eye cleft width is 0.188;

The squid tail shape: the inner canthus angle is 40.0°-50.0°, the average value is 48.0°, and the average ratio of the inner canthus length to the eye fissure width is 0.161;

The rounded type: the inner canthus angle is 47.0°-67.0°, the average value is 55.8°, and the average ratio of inner canthus length to eye cleft width is 0.187;

The beak shape: the inner canthus angle is 14.6°-37.5°, with an average value of 30.8°, and the average ratio of inner canthus length to eye cleft width is 0.22;

The goose-head shape: the inner canthus angle is 14.0°-40.0°, with an average value of 27.0°, and the average ratio of inner canthus length to eye fissure width is 0.189;

The descending oblique shape: the angle of the inner canthus slopes inwardly and downwardly.

Preferably, the star inner canthus image data is used to match the 7 types, the matching algorithm is a clustering algorithm, and the clustering center is a binary combination of the average value of the inner canthus and the ratio of the average length of the inner canthus to the width of the eye cleft. dimension vector.

Preferably, there are 6 cluster centers, the two-dimensional vector of the dolphin-shaped cluster center is 42.0°, 0.196, the two-dimensional vector of the fish mouth-shaped cluster center is 49.5.0°, 0.188, and the squid-tail-shaped cluster center The two-dimensional vector of the cluster center is 48.0°, 0.161, the two-dimensional vector of the rounded cluster center is 58.8°, 0.187, the two-dimensional vector of the beak cluster center is 30.8.0°, 0.22, and the goose-head cluster The two-dimensional vector at the center is 27.0°, 0.189.

Preferably, the recommendation algorithm of the preliminary inner canthus plastic recommendation model includes,

S51: Determine the inner canthus type according to the inner canthus angle of the patient and the ratio of the patient's average inner canthus length to the eye fissure width;

S52: The recommended preliminary inner canthus plastic models corresponding to the rounded shape are fish mouth shape and squid tail shape;

The preliminary inner canthus plastic recommended models corresponding to the beak shape are dolphin shape and squid tail shape;

The recommended preliminary inner canthus plastic models corresponding to the goose head shape are dolphin shape and squid tail shape.

Preferably, the value of n° ranges from 1° to 3°.

Preferably, the m is the ratio of the difference between the inner canthus angle of the patient and the average value of the inner canthus angle of the preliminary inner canthus shaping recommendation model and the n.

Preferably, the algorithm for giving m kinds of shaping schemes includes,

S61: select a value n;

S62: Take the inner canthus angle of the patient as the center, and use the selected value n as a fine-tuning variable to perform addition and subtraction adjustments to the average value of the inner canthus angle of the preliminary inner canthus plastic recommendation model to obtain an adjusted inner canthus plastic picture.

According to the second aspect of the embodiment of the present invention, there is provided a processing device for virtual shaping of the corner of the eye, including: an image acquisition device, an image processing device, and a data display device; the image acquisition device is connected to the image processing device, and the The image processing device is connected to the data display device.

The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

According to the above-mentioned embodiments, the present invention provides a treatment method and device for virtual canthus plastic surgery. Before the operation, the patient can see the postoperative effect under different fine-tuning situations that may occur after the operation, and the patient can adjust according to the possible postoperative effect. The situation gives the choice of one or several program models that meet the patient's own aesthetic needs to provide a reference for the surgeon.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic flowchart of a processing method for virtual eye corner shaping according to an exemplary embodiment;

Fig. 2a Contour image of dolphin-shaped inner canthus;

Fig. 2b The image outline of the fish mouth-shaped inner canthus;

Fig. 2c The image outline of squid tail-shaped inner canthus;

Figure 2d image outline of the rounded inner canthus;

Figure 2e Contour image of beak-shaped medial canthus;

Figure 2f outline image of goose-head-shaped inner canthus;

Figure 2g The image outline of the oblique inner canthus;

Figure 3a Dolphin-shaped inner canthus;

Figure 3b fish mouth-shaped inner canthus;

Figure 3c: Squid-tail-shaped inner canthus;

Fig. 3d Diagram of rounded inner canthus;

Figure 3e Diagram of beak-shaped inner canthus;

Figure 3f: Goose-head inner canthus;

Figure 3g: Lower oblique inner canthus;

Fig. 4 is a structural block diagram of a processing device for virtual eye corner shaping according to an exemplary embodiment;

In the figure: 1—image acquisition device, 2—image processing device, 3—data display device.

Detailed ways

The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such as first and second etc. are used only to distinguish one entity or operation from another without requiring or implying any actual relationship or relationship between these entities or operations. order. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed element. Various embodiments herein are described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same and similar parts of the various embodiments may be referred to each other. As for the structures, products, etc. disclosed in the embodiments, since they correspond to the parts disclosed in the embodiments, the description is relatively simple, and for relevant parts, please refer to the description of the method part.

It should be noted that relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

It should be noted that although the steps of the method in the present disclosure are described in a specific order in the drawings, this does not require or imply that these steps must be performed in this specific order, or that all shown steps must be performed to achieve achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution, etc.

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

A processing method and device for virtual plastic surgery of the corner of the eye as shown in Figure 1, comprising:

S1: As shown in Figure 3a-3g, the image data of the inner canthus is collected offline, the image contour of the inner canthus is extracted according to the image data, and then the angle of the inner canthus and the ratio of the average length of the inner canthus to the width of the eye cleft are calculated according to the image contour of the inner canthus.

S2: In the offline state as shown in Figure 2a-2g, according to the image contour of the inner canthus, the angle of the inner canthus, and the ratio of the average length of the inner canthus to the width of the eye cleft, the angle of the canthus is 14°-67°, the average The ratio of the length of the inner canthus to the width of the eye fissure is a dimensionless value, ranging from 0.16 to 0.22, which divides the inner canthus into 7 types, including dolphin-shaped, fish-mouth-shaped, squid-tail-shaped, rounded-angled, beak-shaped, goose-shaped head shape and descending oblique shape;

The dolphin shape: the inner canthus angle is 34.9°-46.9°, the average value is 42.0°, the average ratio of the inner canthus length to the eye fissure width is 0.196, the change of the upper eyelid edge is relatively gentle, and a tear appears on the lower eyelid edge at the lacrimal point. turning line;

The fish mouth shape: the inner canthus angle is 42.0-67.0°, the average value is 49.5°, the average ratio of the inner canthus length to the eye fissure width is 0.188, the inner canthus angle is larger, the sharp angle is more obvious, and the inner canthus and the edge of the eyelid have no inflection point , the transition is natural and soft;

The squid tail shape: the inner canthus angle is 40.0°-50.0°, the average value is 48.0°, the average ratio of the inner canthus length to the eye fissure width is 0.161, and the lid margin is slightly adducted after the inner canthus reaches the lacrimal point;

The rounded corner type: the inner canthus angle is 47.0°-67.0°, the average value is 55.8°, the average ratio of the inner canthus length to the eye fissure width is 0.187, the inner canthus angle is blunt, and there is no obvious inflection point;

The beak shape: the angle of the inner canthus is 14.6°-37.5°, the average value is 30.8°, the average ratio of the length of the inner canthus to the width of the eye cleft is 0.22, and the angle of the inner canthus is slender in appearance;

The goose head shape: the inner canthus angle is 14.0°-40.0°, the average value is 27.0°, the average ratio of inner canthus length to eye fissure width is 0.189, the lower eyelid edge is smooth, but between the inner canthus and eyelid edge on the upper eyelid edge There is a turning point;

The descending oblique shape: the angle of the inner canthus inclines inwardly and downwardly, which can appear in any of the above types.

S3: Collect image data of the inner canthus of stars offline, and match them with the 7 types. The matching algorithm is a clustering algorithm, and the cluster center is formed by the average value of the inner canthus and the ratio of the average length of the inner canthus to the width of the eye fissure. Two-dimensional vector, the cluster center is 6, the two-dimensional vector of the dolphin-shaped cluster center is 42.0 °, 0.196, the two-dimensional vector of the fish mouth cluster center is 49.5.0 °, 0.188, and the squid tail shape The two-dimensional vector of the cluster center is 48.0°, 0.161, the two-dimensional vector of the rounded cluster center is 58.8°, 0.187, the two-dimensional vector of the beak-shaped cluster center is 30.8. The two-dimensional vector of the class center is 27.0°, 0.189; the shape of the dolphin, the shape of the fish mouth, and the shape of the squid tail conform to the aesthetic point of view, and are recommended models for inner canthus plastic surgery.

S4: Collect the inner canthus image data of a female patient online, and calculate the patient's inner canthus angle as 36° and the patient's average inner canthus length to eye fissure width ratio as 0.2 according to the patient's inner canthus image data.

S5: According to the angle of the inner canthus of the patient, the ratio of the average length of the inner canthus to the width of the eye cleft, and the recommended model of inner canthus surgery, a preliminary inner canthus plastic surgery recommendation model is given,

S51: Determine the type of inner canthus as beak-shaped according to the patient's inner canthus angle and the ratio of the patient's average length of the inner canthus to the width of the eye fissure;

S52: The recommended preliminary inner canthus plastic models corresponding to the beak shape are dolphin shape and squid tail shape.

S6: According to the preliminary inner canthus plastic recommendation model, the inner canthus angle is the core variable, 1° is the unit, and the inner canthus angle of the patient is 36° as the center, and the selected value 1° is used as the fine-tuning variable to perform addition and subtraction adjustments According to the average value of the inner canthus angle of the preliminary inner canthus plastic recommendation model, 6 virtual recommendation plans will be given by the dolphin-shaped plastic surgery recommendation model through the above operations, and 12 virtual recommendation plans will be given by the squid tail plastic surgery recommendation model through the above-mentioned operations.

As shown in Figure 4, a processing device for virtual shaping of the corner of the eye includes: an image acquisition device, an image processing device, and a data display device; the image acquisition device is connected with the image processing device, and the image processing device is connected with the image processing device The data display device is connected.

It should be understood that the present invention is not limited to the processes and structures that have been described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (9)

1. A processing method for virtual reshaping of an eye corner,

the method comprises the following steps:

s1: acquiring inner canthus image data in an off-line manner, extracting an inner canthus image contour according to the image data, and calculating an inner canthus angle and a ratio of average inner canthus length to eye crack width according to the inner canthus image contour;

s2: under an off-line state, dividing the inner canthus into 7 types according to the inner canthus image contour, the inner canthus angle and the average inner canthus length-to-eye crack width ratio, wherein the 7 types comprise a dolphin shape, a fish mouth shape, a squid tail shape, a round angle shape, a beak shape, a goose head shape and a hypotenuse shape;

the dolphin shape: the change of the upper eyelid margin is more gentle, and the lower eyelid margin has a turning line at the tear point;

the fish mouth shape is as follows: the inner canthus has a larger angle, the sharp angle is more obvious, the inner canthus and the eyelid edge have no inflection point, and the transition is natural and soft;

the squid tail shape is as follows: after the inner canthus reaches the punctum, the lid margin is slightly adducted;

the round corner shape: the angular degree of inner canthus is blunt, and no obvious inflection point exists;

the beak shape is as follows: the angle of the inner corner of the eye is an elongated appearance;

the goose head shape is as follows: the lower eyelid margin is smooth, but there is a turning point between the inner canthus and the eyelid margin at the upper eyelid margin;

the downward inclined shape: the angular canthus is inclined medially and inferiorly and may be found in any of the above types;

s3: acquiring image data of star inner canthus offline, matching the image data with the 7 types, wherein the dolphin shape, the fish mouth shape and the squid tail shape accord with an aesthetic viewpoint and serve as an inner canthus reshaping recommendation model;

s4: acquiring the inner canthus image data of a patient in an online state, and calculating the inner canthus angle of the patient and the ratio of the average inner canthus length of the patient to the eye fissure width according to the inner canthus image data of the patient;

s5: providing a primary inner canthus reshaping recommendation model according to the inner canthus angle of the patient, the ratio of the average inner canthus length of the patient to the eye fissure width and the inner canthus reshaping recommendation model;

s6: according to the preliminary inner canthus reshaping recommended model, taking the inner canthus angle as a core variable and n degrees as a unit, and giving m reshaping schemes;

the following specific definitions are given for the 7 types according to the angular and mean angular length to width of the fissure,

the dolphin shape: the inner canthus angle is 34.9-46.9 degrees, the average value is 42.0 degrees, and the ratio of the average inner canthus length to the eye fissure width is 0.196;

the fish mouth shape is as follows: the inner canthus angle is 42.0-67.0 degrees, the average value is 49.5 degrees, and the ratio of the average inner canthus length to the width of the eye fissure is 0.188;

the squid tail shape: the inner canthus angle is 40.0-50.0 degrees, the average value is 48.0 degrees, and the ratio of the average inner canthus length to the eye fissure width is 0.161;

the round corner shape: the inner canthus angle is 47.0-67.0 degrees, the average value is 55.8 degrees, and the ratio of the average inner canthus length to the width of the fissure is 0.187;

the beak shape is as follows: the inner canthus angle is 14.6-37.5 degrees, the average value is 30.8 degrees, and the ratio of the average inner canthus length to the width of the split eye is 0.22;

the goose head shape is as follows: the inner canthus angle is 14.0-40.0 degrees, the average value is 27.0 degrees, and the ratio of the average inner canthus length to the width of the split eye is 0.189 degrees;

the downward inclined shape: the angular canthus is inclined inward and downward.

2. The processing method for virtual shaping of the corners of eyes according to claim 1,

the angular angle is 14 degrees to 67 degrees, and the ratio of the average angular length to the width of the eye fissure is a dimensionless value and is 0.16 to 0.22.

3. The processing method for virtual shaping of the corners of eyes according to claim 1,

and matching the image data of the inner canthus of the star with the 7 types of the images, wherein the matching method is a clustering algorithm, and a clustering center is a two-dimensional vector formed by an inner canthus angle average value and an average inner canthus length and an eye crack width ratio value.

4. The processing method for virtual shaping of the corners of eyes according to claim 3,

the number of the clustering centers is 6, the two-dimensional vectors of the dolphin-shaped clustering centers are 42.0 degrees, 0.196, the two-dimensional vector of the fish mouth-shaped clustering center is 49.5.0 degrees, 0.188, the two-dimensional vector of the squid tail-shaped clustering center is 48.0 degrees, 0.161, the two-dimensional vector of the round-corner-shaped clustering center is 58.8 degrees, 0.187, the two-dimensional vector of the beak-shaped clustering center is 30.8.0 degrees, 0.22, and the two-dimensional vector of the goose head-shaped clustering center is 27.0 degrees, and 0.189.

5. The processing method for virtual shaping of the corners of eyes according to claim 1,

the recommendation algorithm of the preliminary angular plastic recommendation model comprises the following steps,

s51: determining the inner canthus type according to the inner canthus angle of the patient and the average inner canthus length and aspect ratio value of the patient;

s52: the initial inner canthus reshaping recommendation model corresponding to the round corner is in a fish mouth shape and a squid tail shape;

the preliminary inner canthus reshaping recommendation model corresponding to the beak shape is a dolphin shape and a squid tail shape;

the primary inner canthus reshaping recommendation model corresponding to the goose head shape is a dolphin shape and a squid tail shape.

6. The processing method for virtual shaping of the corners of eyes according to claim 5,

the value range of n degrees is 1-3 degrees.

7. The processing method for virtual canthus shaping according to claim 5,

and m is the ratio of the difference of the average values of the inner canthus angles of the patient and the inner canthus angle of the primary inner canthus reshaping recommended model to n.

8. The processing method for virtual shaping of the corners of eyes according to claim 5,

the method for giving m kinds of shaping schemes comprises,

s61: selecting a numerical value n;

s62: and taking the inner canthus angle of the patient as a center, and performing addition and subtraction adjustment to an inner canthus angle average value of a primary inner canthus reshaping recommendation model by taking the selected value n as a fine adjustment variable to obtain an adjusted inner canthus reshaping picture.

9. A processing device for virtual shaping of an eye corner, for processing the processing method for virtual shaping of an eye corner according to any one of claims 1 to 8,

the method comprises the following steps:

the system comprises an image acquisition device, an image processing device and a data display device;

the image acquisition device is connected with the image processing device, and the image processing device is connected with the data display device;

an image acquisition device: acquiring inner canthus image data in an off-line manner, extracting an inner canthus image contour according to the image data, and calculating an inner canthus angle and a ratio of average inner canthus length to eye crack width according to the inner canthus image contour; under an off-line state, dividing the inner canthus into 7 types according to the inner canthus image outline, the inner canthus angle and the average inner canthus length-to-eye cleft width ratio, wherein the 7 types comprise a dolphin shape, a fish mouth shape, a squid tail shape, a round corner shape, a beak shape, a goose head shape and a hypotenuse shape;

the dolphin shape: the change of the upper eyelid edge is relatively smooth, and the lower eyelid edge has a turning line at the tear point;

the fish mouth shape: the inner canthus has a larger angle, the sharp angle is more obvious, the inner canthus and the eyelid edge have no inflection point, and the transition is natural and soft;

the squid tail shape is as follows: after the inner canthus reaches the punctum, the palpebral margin is slightly adducted;

the round corner shape: the inner canthus angle is blunt, and no obvious inflection point exists;

the beak shape is as follows: the angle of the inner corner of the eye is an elongated appearance;

the goose head shape is as follows: the lower eyelid margin is smooth, but there is a turning point between the inner canthus and the eyelid margin at the upper eyelid margin;

the downward inclined shape: the angular canthus is inclined medially and inferiorly and may be found in any of the above types;

the following specific definitions are given for the 7 types according to the angular and mean angular length to width of the fissure,

the dolphin shape: the inner canthus angle is 34.9-46.9 degrees, the average value is 42.0 degrees, and the ratio of the average inner canthus length to the width of the fissure is 0.196;

the fish mouth shape is as follows: the inner canthus angle is 42.0-67.0 degrees, the average value is 49.5 degrees, and the ratio of the average inner canthus length to the eye crack width is 0.188;

the squid tail shape: the inner canthus angle is 40.0-50.0 degrees, the average value is 48.0 degrees, and the ratio of the average inner canthus length to the width of the split eye is 0.161;

the round corner shape: the inner canthus angle is 47.0-67.0 degrees, the average value is 55.8 degrees, and the ratio of the average inner canthus length to the width of the fissure is 0.187;

the beak shape is as follows: the inner canthus angle is 14.6-37.5 degrees, the average value is 30.8 degrees, and the ratio of the average inner canthus length to the eye fissure width is 0.22;

the goose head shape is as follows: the inner canthus angle is 14.0-40.0 degrees, the average value is 27.0 degrees, and the ratio of the average inner canthus length to the eye fissure width is 0.189 degrees;

the downward inclined shape: the inner canthus angle is inclined inwards and downwards

Acquiring star inner canthus image data in an off-line manner, matching the star inner canthus image data with the 7 types, wherein the dolphin shape, the fish mouth shape and the squid tail shape accord with an aesthetic viewpoint and serve as an inner canthus shaping recommendation model;

an image processing apparatus: acquiring the image data of the inner canthus of the patient in an on-line state, and calculating the angle of the inner canthus of the patient and the ratio of the average length of the inner canthus to the width of the eye crack of the patient according to the image data of the inner canthus of the patient;

providing a primary inner canthus reshaping recommendation model according to the inner canthus angle of the patient, the ratio of the average inner canthus length of the patient to the eye fissure width and the inner canthus reshaping recommendation model;

according to the preliminary inner canthus reshaping recommended model, taking the inner canthus angle as a core variable and n degrees as a unit, and giving m reshaping schemes;

a data display device: m shaping schemes are given for display.

Images