WO2022205010A1

WO2022205010A1 - Three-dimensional image processing method and apparatus, and storage medium and electronic device

Info

Publication number: WO2022205010A1
Application number: PCT/CN2021/084151
Authority: WO
Inventors: 杨亚军
Original assignee: 深圳市立体通科技有限公司
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-10-06

Abstract

A three-dimensional image processing method and apparatus, and a storage medium and an electronic device. The method comprises: S1, performing simulated image arrangement on a three-dimensional image by means of an image arrangement algorithm; S2, with regard to each mixed sub-pixel in a crosstalk region, calculating the area P1 thereof in a left view and the area P2 thereof in a right view; S3, acquiring a pixel value t1 of the mixed sub-pixel in the left view and a pixel value t2 thereof in the right view; S4, comparing the area P1 of the mixed sub-pixel in the left view with the area P2 thereof in the right view, so as to obtain an area comparison result; and S5, according to the area comparison result, the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 thereof in the right view, determining a final pixel value t that needs to be assigned to the mixed sub-pixel during image arrangement display. According to the method, by means of intervening in a pixel value of each mixed sub-pixel in a crosstalk region during image arrangement display, the influence of the crosstalk region on left and right views can be alleviated, the algorithm is simple and efficient, and an image edge has a good fullness, thereby effectively improving the naked-eye 3D imaging quality.

Description

Three-dimensional image processing method, device, storage medium and electronic device

technical field

The present invention relates to the field of naked-eye 3D technology, and more particularly, to a three-dimensional image processing method, device, storage medium and electronic device.

Background technique

The core difficulty of naked-eye 3D technology is to reasonably reduce or eliminate the crosstalk between the left and right eye views. At present, the combination of human eye tracking technology can keep the eyes in the correct viewing area, the crosstalk situation has been greatly improved, and the 3D imaging quality has also improved. Certainly improved, however, there are still areas of crosstalk within the normal viewing area. The naked-eye 3D content adopts the left and right source images staggered. When the 3D content is playing, the grating will form a left and right view dividing line, which will split the left and right source images. A 3D stereoscopic image is formed in the brain.

Theoretically, if the left source image is consistent with the left view and the right source image with the right view, crosstalk will not occur. Under the current technological development, the display screen is composed of numerous RGB light-emitting sub-pixels, and each light-emitting area can only select one of the color commands in the left and right source images for display. In the actual operation of the technical implementation, all single RGB light-emitting sub-pixels that are connected to the left and right source images will be forcibly divided by the view dividing line generated by the raster, resulting in the left view may carry part of the right source image information, and the right view may also carry part of the left source. image information, which eventually leads to crosstalk in 3D stereoscopic images. Among them, the set of single RGB light-emitting sub-pixel display areas divided by the left and right view dividing lines in all source images is called a crosstalk area.

The prior art solution is to reduce the number of grating slits as much as possible and expand the grating slit gap, thereby reducing the crosstalk area caused by grating segmentation. However, the prior art solution has complex algorithms, low image processing efficiency, and poor image edge fullness.

technical problem

The technical problem to be solved by the present invention is to provide a three-dimensional image processing method, device, storage medium and electronic device in view of the above-mentioned defects of the prior art.

technical solutions

The technical scheme adopted by the present invention to solve the technical problem is: constructing a three-dimensional image processing method, comprising the following steps:

S1: Simulate the layout of the three-dimensional image through the layout algorithm;

S2: Calculate the area P1 of each mixed sub-pixel in the crosstalk area in the left view and the area P2 in the right view;

S3: Obtain the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view;

S4: Compare the area P1 of the mixed sub-pixel located in the left view with the area P2 located in the right view to obtain an area comparison result;

S5: According to the area comparison result, the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view, determine the final pixel value t to be assigned when the mixed sub-pixel layout is displayed.

In the three-dimensional image processing method of the present invention, the area comparison result includes: the area P1 of the mixed sub-pixel located in the left view is larger than the area P2 of the right view, and the area P1 of the mixed sub-pixel located in the left view is smaller than The area P2 located in the right view, or the area P1 located in the left view of the mixed sub-pixel is equal to the area P2 located in the right view.

In the three-dimensional image processing method of the present invention, the step S5 specifically includes:

If the area P1 of the mixed sub-pixel located in the left view is greater than the area P2 of the right view, the pixel value t1 of the mixed sub-pixel located in the left view is given to the mixed sub-pixel in the final pixel value t when the sub-pixel is displayed in a layout;

If the area P2 of the mixed sub-pixel located in the right view is greater than the area P1 of the left view, the pixel value t2 of the mixed sub-pixel located in the right view is assigned to the final pixel value t when the mixed sub-pixel is displayed in a layout;

If the area P1 of the mixed sub-pixel in the left view is equal to the area P2 in the right view, assign the pixel value t1 of the mixed sub-pixel in the left view or the pixel value t2 of the mixed sub-pixel in the right view to the The final pixel value t when the mixed sub-pixel layout is displayed.

The present invention also provides a three-dimensional image processing device, comprising:

The simulation layout unit is used to simulate the layout of the three-dimensional image through the layout algorithm;

a calculation unit, configured to calculate the area P1 of each mixed sub-pixel in the crosstalk area in the left view and the area P2 in the right view;

an obtaining unit for obtaining the pixel value t1 of the mixed sub-pixel located in the left view and the pixel value t2 of the right view;

a comparison unit, configured to compare the area P1 of the mixed sub-pixel located in the left view with the area P2 located in the right view to obtain an area comparison result;

A pixel value determination unit, configured to determine the final pixel to be assigned when the mixed sub-pixels are displayed when the mixed sub-pixels are displayed according to the area comparison result, the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view value t.

In the three-dimensional image processing device of the present invention, the area comparison result includes: the area P1 of the mixed sub-pixel located in the left view is larger than the area P2 of the right view, and the area P1 of the mixed sub-pixel located in the left view is smaller than The area P2 located in the right view, or the area P1 located in the left view of the mixed sub-pixel is equal to the area P2 located in the right view.

In the three-dimensional image processing device of the present invention, the pixel value determination unit includes:

The first sub-determination unit is configured to assign the pixel value t1 of the mixed sub-pixel in the left view to the mixed sub-pixel arrangement when the area P1 of the mixed sub-pixel in the left view is greater than the area P2 of the right view The final pixel value t when displayed;

The second sub-determination unit is configured to assign the pixel value t2 of the mixed sub-pixel in the right view to the mixed sub-pixel layout when the area P2 of the mixed sub-pixel in the right view is greater than the area P1 of the left view The final pixel value t when displayed;

The third sub-determining unit is configured to, when the area P1 of the mixed sub-pixel located in the left view is equal to the area P2 of the right view, set the pixel value t1 of the mixed sub-pixel in the left view or the mixed sub-pixel in the right view The pixel value t2 of the view is assigned to the final pixel value t when the mixed sub-pixel arrangement is displayed.

The present invention also provides a storage medium, which stores a program, and when the program is executed by a processor, implements the above-mentioned three-dimensional image processing method.

The present invention also provides an electronic device, comprising:

memory for storing programs;

a processor for loading the program to execute the above three-dimensional image processing method;

a display panel for displaying the three-dimensional image processed by the processor;

A spectroscopic device, disposed on the display panel, is used for performing spectroscopic processing on the three-dimensional image displayed on the display panel.

beneficial effect

Implementing the three-dimensional image processing method, device, storage medium and electronic device of the present invention has the following beneficial effects: the three-dimensional image processing method provided by the present invention does not need to replace the optical device (spectroscopy device), and only by arranging the mixed sub-pixels in the crosstalk area The naked-eye 3D imaging quality can be improved by interfering with the pixel values during display. Moreover, the present invention is different from the prior art technology that uses the number of grating slits to expand the grating slit gap, thereby reducing the crosstalk area caused by the grating division. The solution will not cause the user viewing angle to become smaller, the optimal viewing distance to be closer to the screen, and the range to become smaller. In addition, the algorithm of the present invention is simple and efficient, and can obviously improve the fullness of the image edge.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

Fig. 1 is a schematic diagram of naked-eye 3D layout display;

Fig. 2 is the schematic diagram of naked eye 3D crosstalk area;

3 is a schematic diagram of a naked-eye 3D hybrid sub-pixel;

4 is a schematic flowchart of a three-dimensional image processing method provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of the three-dimensional image processing apparatus provided in the fourth embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

In order to clearly illustrate the technical solutions of the present invention, some related concepts in the naked-eye 3D technology are described below with reference to FIG. 1 , FIG. 2 , and FIG. 3 .

As shown in Figure 1, the naked-eye 3D content is displayed on the display screen by staggering the left and right source images. When the 3D content is played, the raster will form a view area dividing line (ie, the left and right view dividing line) to separate the left and right source images. After splitting and separation, after the left and right eyes see the corresponding left and right views in the correct visual area, a 3D stereo image is formed in the brain.

However, as shown in FIG. 2 , when arranging gratings in the existing naked-eye 3D technical solutions, due to the problems of fitting accuracy and avoiding moiré, an oblique arrangement is usually adopted. When the inclined design is adopted, all single RGB light-emitting sub-pixels (red, green, and blue light-emitting sub-pixels) where the left and right source images meet will be forcibly divided by the view dividing line generated by the grating, resulting in that the left view may carry part of the right source image. information, the right view may also carry part of the left source image information, so that the images that should enter the user's left and right eyes contain the images that the other eye should receive, which eventually leads to crosstalk in the 3D stereo image, and the user will feel dizzy. Poor experience. Wherein, the set of single RGB light-emitting sub-pixel display areas divided by the view area dividing line in all source images is called a crosstalk area, also called a mixed area. Subpixels within the crosstalk region are called hybrid subpixels.

Further, as shown in FIG. 3 , after the mixed sub-pixel is divided by the view area dividing line, its area in the left view is represented by P1, and its area in the right view is represented by P2.

The three-dimensional image processing method of the present invention will be described in detail below with reference to the embodiments.

Referring to FIG. 4 , FIG. 4 is a schematic flowchart of a three-dimensional image processing method provided by an embodiment of the present invention.

As shown in Figure 4, the three-dimensional image processing method includes the following steps:

S1: Simulate the layout of the three-dimensional image through the layout algorithm.

Specifically, an existing layout algorithm can be used to simulate the layout of the three-dimensional image. That is, according to the specifications of the two-dimensional display screen, the specifications of the grating, the distance between the grating and the two-dimensional display screen, and the viewing distance of the user that needs to be matched, the corresponding matching pattern on the two-dimensional display screen in each grating period is calculated. Then, according to the number of viewpoints, confirm whether each sub-pixel in each image arrangement cycle corresponds to the left source image (left eye image) or the right source image (right eye image); finally, according to the left source image and right source image, The pixel value of each sub-pixel is simulated and assigned, that is, the simulated layout of the three-dimensional image is completed.

S2: Calculate the area P1 of each mixed sub-pixel in the left view and the area P2 of the right view in the crosstalk area.

Specifically, the area P1 in the left view and the area P2 in the right view of each mixed sub-pixel in the crosstalk region can be calculated according to the specifications of the two-dimensional display screen and the specifications of the grating.

S3: Obtain the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view.

It can be understood that because it is an analog layout, after each mixed sub-pixel in the crosstalk area is divided by the view area dividing line, the area P1 in the left view and the area P2 in the right view area can be simulated and assigned to the corresponding sub-pixels respectively. Pixel value to ensure that the content of the left source image is in the left view, and the content of the right source image is in the right view.

However, when the 2D display screen is actually displayed, the RGB light-emitting sub-pixels themselves are inseparable, so each mixed sub-pixel in the crosstalk area can only select one of the color instructions in the left and right source images for display, that is, each mixed sub-pixel. Only one hue value and pixel value can be displayed, which will cause the user to see the right view information with the left eye or the left view information with the right eye when viewing, thereby forming crosstalk. Then, it is necessary to intervene the pixel values of the mixed sub-pixels through an algorithm to determine the final pixel value t that needs to be assigned when the mixed sub-pixels are displayed, thereby reducing crosstalk and improving the imaging quality of the three-dimensional image.

S4: Compare the area P1 of the mixed sub-pixel located in the left view with the area P2 located in the right view to obtain an area comparison result.

Specifically, the area comparison results include: the area P1 of the mixed sub-pixel located in the left view is larger than the area P2 of the right view, the area P1 of the mixed sub-pixel located in the left view is smaller than the area P2 of the right view, or the mixed sub-pixel is located in the left view. The area P1 is equal to the area P2 in the right view.

S5: According to the area comparison result, the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view, determine the final pixel value t to be assigned when the mixed sub-pixel arrangement is displayed.

In some embodiments, step S5 specifically includes: if the area P1 of the mixed sub-pixel located in the left view is greater than the area P2 of the right view, then assigning the pixel value t1 of the mixed sub-pixel located in the left view to the final result when the mixed sub-pixel is displayed in the layout. Pixel value t; if the area P2 of the mixed sub-pixel in the right view is greater than the area P1 in the left view, the pixel value t2 of the mixed sub-pixel in the right view is assigned to the final pixel value t when the mixed sub-pixel is displayed; The area P1 of the sub-pixel in the left view is equal to the area P2 in the right view, then the pixel value t1 of the mixed sub-pixel in the left view or the pixel value t2 of the mixed sub-pixel in the right view is assigned to the final pixel of the mixed sub-pixel layout display. value t. Specifically, when the area P1 of the mixed sub-pixel in the left view is larger than the area P2 in the right view, the final pixel value t of the mixed sub-pixel in the layout display is t1, that is, t=t1. When the area P1 of the mixed sub-pixel in the left view is smaller than the area P2 in the right view, the final pixel value t of the mixed sub-pixel in the layout display is t2, that is, t=t2. When the area P1 of the mixed sub-pixel in the left view is equal to the area P2 in the right view, the final pixel value t when the mixed sub-pixel is displayed in a layout is t1 or t2, that is, t=t1, or t=t2.

It can be understood that the three-dimensional image processing method according to the embodiment of the present invention adopts the loss reduction core method of taking large and discarding to improve the influence of the crosstalk area on the left and right views. When a single mixed sub-pixel is divided into two parts by the left and right view dividing line, , by comparing the respective areas of the two parts, retaining the pixel value of the part with a larger area after the mixed sub-pixel is divided, and directly discarding the color information of the part with a relatively small area; or, when the respective areas of the two parts are equal, keep the Any part of the pixel value can improve the influence of the crosstalk area on the left and right views, effectively improve the imaging quality of the three-dimensional image, the image edge is full, and the algorithm is simple and efficient.

Based on the three-dimensional image processing method provided by the above embodiments, the present invention further provides a three-dimensional image processing apparatus, and the three-dimensional image processing apparatus can be used to implement the three-dimensional image processing method disclosed in the embodiments of the present invention.

Specifically, as shown in FIG. 5 , the three-dimensional image processing device includes:

The simulation layout unit 100 is used to simulate layout of the three-dimensional image through a layout algorithm.

The calculation unit 200 is configured to calculate the area P1 of each mixed sub-pixel located in the left view and the area P2 of the right view in the crosstalk area.

The obtaining unit 300 is configured to obtain the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view.

The comparing unit 400 is configured to compare the area P1 of the mixed sub-pixel located in the left view with the area P2 located in the right view to obtain an area comparison result.

The pixel value determination unit 500 is configured to determine the final pixel value t to be assigned when displaying the mixed sub-pixel layout according to the area comparison result, the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view.

In some embodiments, the area comparison result includes: the area P1 of the mixed sub-pixel located in the left view is larger than the area P2 of the right view, the area P1 of the mixed sub-pixel located in the left view is smaller than the area P2 of the right view, or the mixed sub-pixel is located in the left view. The area P1 of the view is equal to the area P2 of the right view.

Further, in some embodiments, the pixel value determination unit 500 includes:

The first sub-determination unit is used to assign the pixel value t1 of the mixed sub-pixel in the left view to the final pixel value when the mixed sub-pixel is displayed in the layout when the area P1 of the mixed sub-pixel in the left view is greater than the area P2 of the right view t.

The second sub-determination unit is configured to assign the pixel value t2 of the mixed sub-pixel in the right view to the final pixel value when the mixed sub-pixel is displayed in the layout when the area P2 of the mixed sub-pixel in the right view is greater than the area P1 of the left view t.

The third sub-determination unit is configured to assign the pixel value t1 of the mixed sub-pixel in the left view or the pixel value t2 of the mixed sub-pixel in the right view when the area P1 of the mixed sub-pixel in the left view is equal to the area P2 of the right view The final pixel value t when the mixed sub-pixel layout is displayed.

The present invention also provides a storage medium storing a program, and when the program is executed by a processor, the three-dimensional image processing method provided by any embodiment of the present invention is implemented. The storage medium includes but is not limited to random access memory (RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or technical fields Any other form of storage medium known in the art.

The present invention also provides an electronic device, comprising:

memory for storing programs.

The processor is configured to load a program to execute the three-dimensional image processing method provided by any embodiment of the present invention.

The display panel is used to display the three-dimensional image processed by the processor.

The spectroscopic device is arranged on the display panel and is used for performing spectroscopic processing on the three-dimensional image displayed on the display panel.

Alternatively, the electronic devices include, but are not limited to, smart phones, computers, smart TVs, vehicle-mounted terminals, advertising machines, game consoles, etc., that is, terminals with the function of playing images or videos. Three-dimensional images include 3D pictures, 3D videos, 3D games, and the like. The spectroscopic device can be selected from a lenticular grating optical film, a barrier parallax grating optical film, etc. The spectroscopic device can be integrated with the display panel or separately provided with the display panel. For the structures of the lenticular grating optical film and the barrier parallax grating optical film, reference may be made to the prior art, which will not be repeated here.

To sum up, the three-dimensional image processing method and processing device provided by the embodiments of the present invention achieve the effect of improving the naked-eye 3D imaging quality by intervening in the pixel values of each mixed sub-pixel arrangement in the crosstalk area, without replacing optical devices (beam splitting device), the cost is lower, and it does not affect its viewing angle and the closest viewing distance and range. Further, the three-dimensional image processing method provided by the embodiment of the present invention has a simple algorithm, high efficiency, and good image edge fullness.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

Professionals may further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the possibilities of hardware and software. Interchangeability, the above description has generally described the components and steps of each example in terms of functionality. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

The steps of a method or algorithm described in conjunction with the embodiments disclosed herein may be directly implemented in hardware, a software module executed by a processor, or a combination of the two. Software modules can be placed in random access memory (RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other in the technical field. in any other known form of storage medium.

The above embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention. All equivalent changes and modifications made with the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

A three-dimensional image processing method, comprising the following steps:

S1: Simulate the layout of the three-dimensional image through the layout algorithm;

S2: Calculate the area P1 of each mixed sub-pixel in the crosstalk area in the left view and the area P2 in the right view;

S3: Obtain the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view;

S4: Compare the area P1 of the mixed sub-pixel located in the left view with the area P2 located in the right view to obtain an area comparison result;

S5: According to the area comparison result, the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view, determine the final pixel value t to be assigned when the mixed sub-pixel layout is displayed.
The three-dimensional image processing method according to claim 1, wherein the area comparison result comprises: the area P1 of the mixed sub-pixel located in the left view is larger than the area P2 of the right view, and the mixed sub-pixel is located in the left view. The area P1 of the mixed sub-pixel is smaller than the area P2 of the right view, or the area P1 of the mixed sub-pixels located in the left view is equal to the area P2 of the right view.
The three-dimensional image processing method according to claim 2, wherein the step S5 specifically comprises:

If the area P1 of the mixed sub-pixel located in the left view is greater than the area P2 of the right view, then assign the pixel value t1 of the mixed sub-pixel in the left view to the final pixel value t when the mixed sub-pixel is displayed in a layout;

If the area P2 of the mixed sub-pixel located in the right view is greater than the area P1 of the left view, the pixel value t2 of the mixed sub-pixel located in the right view is assigned to the final pixel value t when the mixed sub-pixel is displayed in a layout;

If the area P1 of the mixed sub-pixel in the left view is equal to the area P2 in the right view, assign the pixel value t1 of the mixed sub-pixel in the left view or the pixel value t2 of the mixed sub-pixel in the right view to the The final pixel value t when the mixed sub-pixel layout is displayed.
A three-dimensional image processing device, comprising:

The simulation layout unit is used to simulate the layout of the three-dimensional image through the layout algorithm;

a calculation unit, configured to calculate the area P1 of each mixed sub-pixel in the crosstalk area in the left view and the area P2 in the right view;

an obtaining unit for obtaining the pixel value t1 of the mixed sub-pixel located in the left view and the pixel value t2 of the right view;

a comparison unit, configured to compare the area P1 of the mixed sub-pixel located in the left view with the area P2 located in the right view to obtain an area comparison result;

A pixel value determination unit, configured to determine the final pixel to be assigned when the mixed sub-pixels are displayed when the mixed sub-pixels are displayed according to the area comparison result, the pixel value t1 of the mixed sub-pixel in the left view and the pixel value t2 in the right view value t.
The three-dimensional image processing apparatus according to claim 4, wherein the area comparison result comprises: the area P1 of the mixed sub-pixel located in the left view is larger than the area P2 of the right view, and the mixed sub-pixel is located in the left view. The area P1 of the mixed sub-pixel is smaller than the area P2 of the right view, or the area P1 of the mixed sub-pixels located in the left view is equal to the area P2 of the right view.
The three-dimensional image processing device according to claim 5, wherein the pixel value determination unit comprises:

The first sub-determination unit is configured to assign the pixel value t1 of the mixed sub-pixel in the left view to the mixed sub-pixel arrangement when the area P1 of the mixed sub-pixel in the left view is greater than the area P2 of the right view The final pixel value t when displayed;

The second sub-determination unit is configured to assign the pixel value t2 of the mixed sub-pixel in the right view to the mixed sub-pixel layout when the area P2 of the mixed sub-pixel in the right view is greater than the area P1 of the left view The final pixel value t when displayed;

The third sub-determining unit is configured to, when the area P1 of the mixed sub-pixel in the left view is equal to the area P2 in the right view, set the pixel value t1 of the mixed sub-pixel in the left view or the mixed sub-pixel in the right view The pixel value t2 of the view is assigned to the final pixel value t when the mixed sub-pixel arrangement is displayed.
A storage medium storing a program, characterized in that, when the program is executed by a processor, the three-dimensional image processing method according to any one of claims 1-3 is implemented.
An electronic device, comprising:

memory for storing programs;

a processor for loading the program to execute the three-dimensional image processing method according to any one of claims 1-3;

a display panel for displaying the three-dimensional image processed by the processor;

A spectroscopic device, arranged on the display panel, for performing spectroscopic processing on the three-dimensional image displayed on the display panel

.