WO2015161603A1

WO2015161603A1 - High-resolution display method and system

Info

Publication number: WO2015161603A1
Application number: PCT/CN2014/085421
Authority: WO
Inventors: 冷长林
Original assignee: 京东方科技集团股份有限公司
Priority date: 2014-04-23
Filing date: 2014-08-28
Publication date: 2015-10-29
Also published as: CN103974115A; CN103974115B

Abstract

Provided are a high-resolution display method and system. The display method comprises: dividing a high-resolution display panel into a plurality of sub-regions, each sub-region corresponding to a unique serial number; collecting a human eye image of a viewer; recognizing a first position where human eye pupils are located; determining a second position, on the high-resolution display panel, corresponding to the first position; according to the second position and a human eye focusing radius R, determining a sub-region required to be finely processed on the high-resolution display panel, and outputting a corresponding serial number as a region parameter; and according to the region parameter, conducting selective stretching processing on an input first resolution image signal to obtain a second resolution image signal having a resolution higher than that of the first resolution image signal, and displaying same through the high-resolution display panel. The embodiments of the present invention can obviously reduce the requirements for the image data processing speed and hardware, thereby realizing the cost degradation of high-resolution display.

Description

High resolution display method and system

CROSS-REFERENCE TO RELATED APPLICATIONS RELATED APPLICATIONS RELATED APPLICATIONS RELATED APPLICATIONS RELATED APPLICATIONS

TECHNICAL FIELD Embodiments of the present invention relate to the field of image display technology, and more particularly to a high resolution display method and system for improving picture definition of a display device. BACKGROUND OF THE INVENTION With the development of science and technology and the improvement of living standards, people are increasingly demanding image display quality. At present, the liquid crystal panel has reached the level of high resolution (such as 4K X 2K). If it is considered that the current market still uses 720P (resolution 1280 X 720) as the HD standard, the ultra HD resolution can reach 3840 X 2160. The total number of pixels of the corresponding display device has reached more than 8 million, which is four times that of Full HD FullHD (resolution is Ι^Ο ΙΟ ΙΟδΟ) and eight times that of HD.

However, due to the shortage of ultra-high definition and above sources, when viewing high-resolution (such as 4Κ Χ 2Κ) TV, it is necessary to stretch the high-definition (such as FullHD or HD) image content to the high resolution. Most existing television systems use a global stretching method that uses the same stretching algorithm for the entire image. If you want to ensure high-quality image stretching, the stretching algorithm used is bound to be complicated. In the case of using a complex stretching algorithm for the entire image, the amount of image data that the television system needs to process is large, which not only increases the technical difficulty of image stretching processing, but also puts higher requirements on the image processing hardware platform, thereby increasing The cost.

Therefore, there is an urgent need to develop a high-resolution display method and system that can ensure a clear viewing of the human eye and effectively reduce the amount of data processing. Summary of the invention In order to solve the above problems in the prior art, embodiments of the present invention propose a high resolution display method and system.

In accordance with at least one embodiment of the present invention, a high resolution display method is provided, the method comprising the steps of:

The high-resolution display panel is divided into M X N sub-regions, and each sub-region corresponds to a unique number, where M and N are positive integers greater than one;

Collecting a human eye image of the viewer;

Identifying a first location where the pupil of the human eye is located based on the human eye image;

Determining, according to the identified first position, a second position on the high resolution display panel corresponding to the first position;

Determining a sub-area on the high-resolution display panel that needs to be fine-processed according to the second position and a focus radius R of the human eye, and outputting a corresponding number as a region parameter;

Performing a selective stretching process on the input first resolution image signal according to the region parameter to obtain a second resolution image signal having a higher resolution than the first resolution image signal, and displaying the high resolution through the high resolution display The panel is displayed.

According to at least one embodiment of the present invention, a high resolution display system is further provided, comprising: a high resolution display panel for displaying a high resolution image, the high resolution display panel being divided into

M X N sub-regions, and each sub-region corresponds to a unique number, where M and N are positive integers greater than one;

An image acquisition unit mounted on the high resolution display panel and configured to collect a human eye image of the viewer; a human eye recognition unit coupled to the image acquisition unit and configured to acquire an image of the human eye based on the image acquisition unit Identifying the first position where the pupil of the human eye is located;

a human eye focus position analyzing unit, coupled to the human eye recognition unit, and configured to determine a second position on the high resolution display panel corresponding to the first position according to the identified first position; a resolution display area analyzing unit, coupled to the human eye focus position analyzing unit, and configured to determine a sub-area on the high-resolution display panel that needs to be finely processed according to the second position and a focus radius R of the human eye And output the corresponding number as the area parameter;

a system level chip circuit coupled to the image stretching processing unit and configured to input a first resolution image signal to the image stretching processing unit;

An image stretching processing unit, and the high resolution display area analyzing unit and the system level chip Connected to the first resolution image signal input by the system-on-chip circuit according to the regional parameter output by the high-resolution display area analyzing unit, and the resolution is higher than the first a second resolution image signal of the resolution image;

And a timing controller driving circuit connected to the image stretching processing unit and configured to input the second resolution image signal to the high resolution display panel for display.

Compared with the existing global stretching technology, the present invention can significantly reduce the amount of image processing data, thereby reducing the processing speed and hardware requirements for image data, thereby realizing the cost reduction of high-resolution television systems.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flowchart of a high resolution display method according to an exemplary embodiment of the present invention;

2 is a structural block diagram of a high resolution display system according to an exemplary embodiment of the present invention; and FIG. 3 is a schematic diagram of a geometric space system formed by a high resolution display panel, an image acquisition unit, and a human eye according to an exemplary embodiment of the present invention. . DETAILED DESCRIPTION OF THE INVENTION In order to make the objects, technical solutions, and advantages of the present invention more comprehensible, the present invention will be described in detail below with reference to the accompanying drawings.

The area of the human eye viewing area is small relative to a large-sized screen display, that is, whether the area other than the focus radius of the human eye is a high-resolution display is not important to the viewer. Thus, in accordance with at least one embodiment of the present invention, a high resolution display method is presented, as shown in FIG.

Referring to FIG. 1, at step S110, the high-resolution display panel is divided into a plurality of sub-regions, the number of sub-regions is Μ Χ Ν , and each sub-region corresponds to a unique number, where Μ and Ν are positive integers greater than 1. .

Assume that the pixel resolution of the high-resolution display panel is Α Χ Β , where Α is the number of rows of pixels in the high-resolution display panel, Β is the number of columns of pixels in the high-resolution display panel, and the values of Μ and Ν are 1 < Μ <Α , 1 < Ν <Β. In the embodiment of the present invention, the case where Μ=3 and Ν=3 is illustrated, and the high-resolution display panel is divided into 3×3 sub-regions, and the obtained sub-region numbers are 1 to 9. Of course, in practical applications, the values of Μ and Ν can be flexibly set according to the degree of refinement control of the image processing area. At step S120, a human eye image of the viewer is acquired. Then at step S130, the first position where the pupil of the human eye is located is identified based on the acquired human eye image. And at step S140, determining a second position on the high resolution display panel corresponding to the first position based on the identified first position. Further, step S140 may further determine the second position in combination with the stereo recognition of the human body posture, so that the second position on the high resolution display panel can be more accurately positioned.

At step S150, according to the determined second position and the focus radius R of the human eye, the sub-area on the high-resolution display panel that needs to be fine-processed is determined, that is, the viewer can clearly view the sub-area where the area is located, and output corresponding The sub-area number, as a region parameter. For example, if it is determined that the area that the viewer can clearly see is the sub-areas numbered 5 and 6, the area parameters 5 and 6 are output.

In an embodiment of the invention, the focus radius R of the human eye on the high resolution display panel is taken as the maximum focus radius, that is, the distance X tan20 between the human eye and the screen. . The angle 20 here is a perspective that the viewer can clearly see and is less prone to fatigue. Of course, the value of the focus radius R can also be determined according to the needs of the actual application. The present invention does not impose any limitation on the focus radius R of the human eye.

At step S160, the input first resolution image signal is subjected to selective stretching processing according to the region parameter to obtain a second resolution image signal having a higher resolution than the first resolution image signal, and passes through the high resolution display panel. Display.

Step S160 further includes: dividing the first resolution image signal into m x n sub-regions corresponding to MXN sub-regions of the high-resolution display panel, and assigning each sub-region a unique number, where m, n are positive integers greater than 1. , and m X n< MXN. When m X n=MXN, the number of each sub-area of the first-resolution image signal corresponds to the number of each sub-area of the high-resolution display panel, so that the first-resolution image signal can be more accurately determined. Sub-area to be fine-grained.

Performing a first stretching algorithm on the sub-regions (numbers 5 and 6) corresponding to the region parameters (5 and 6) in the first-resolution image signal, and performing a second stretching algorithm on the other sub-regions, wherein A stretching algorithm can achieve a more refined stretching result than the second stretching algorithm. Therefore, the complexity of the first stretching algorithm is higher than that of the second stretching algorithm. The stretching algorithm with high precision and high complexity is used only for the sub-regions to be finely processed, and the stretching algorithm with low precision and low complexity is adopted for other sub-regions, which not only improves the viewer's clear viewing. The image quality of the region, and also avoids the use of highly complex stretching algorithms for the entire image signal, thereby reducing the amount of data processed by the image.

At step S170, all the sub-areas after the stretching process are spliced to obtain a second-resolution image signal. In accordance with at least one embodiment of the present invention, a high resolution display system 200 is also presented, as shown in FIG. The display system 200 includes: a high resolution display panel 210, an image acquisition unit 220, a human eye recognition unit 230, a human eye focus position analysis unit 240, a high resolution display area analysis unit 250, a system level chip Soc circuit 260, and an image pull The processing unit 270 and the timing controller drive circuit 280 are extended.

The high resolution display panel 210 is used to display high resolution images. The high resolution display panel 210 is divided into M X N sub-regions, and each sub-region corresponds to a unique number, where M and N are positive integers greater than one. In an embodiment of the invention, the high resolution display panel 210 is divided into 3 X 3 sub-regions, and the obtained sub-regions are numbered 1 through 9.

The image acquisition unit 220 is mounted on the high resolution display panel 210 for capturing a human eye image of the viewer. At this time, the high-resolution display panel 210, the image acquisition unit 220, and the human eye form a geometric space system, as shown in FIG. 3, wherein the coordinate origin is the upper left corner of the effective display area of the high-resolution display panel, and the X-axis. For the row display axis, the y axis is the column display axis, and the z axis is perpendicular to the xy plane and faces the viewer. In this spatial coordinate system, the pixel coordinates of the high resolution display panel 210, the position of the image acquisition unit 220, and The position of the human eye is determined.

The human eye recognition unit 230 is connected to the image acquisition unit 220 for recognizing the first position where the pupil of the human eye is located based on the human eye image collected by the image acquisition unit 220;

The human eye focus position analyzing unit 240 is coupled to the human eye recognizing unit 230 for determining a second position on the high resolution display panel 210 corresponding to the first position based on the identified first position. Further, the human eye focus position analyzing unit 240 can also perform more precise positioning of the second position in combination with stereoscopic recognition of the human body posture.

The high-resolution display area analyzing unit 250 is connected to the human eye focus position analyzing unit 240 for determining a sub-area on the high-resolution display panel 110 that needs to be finely processed according to the second position and the focus radius R of the human eye, that is, viewing The person can clearly view the position of the sub-area where the area is located, and output the corresponding sub-area number as the area parameter. For example, if it is determined that the area that the viewer can clearly view is the sub-areas numbered 5 and 6, the high-resolution display area analyzing unit 250 outputs the area parameters 5 and 6. In an embodiment of the invention, the focus radius R of the human eye is taken as the maximum focus radius, that is, the distance between the human eye and the screen. X tan20°

The system-on-chip Soc circuit 260 is coupled to the image stretching processing unit 270 for inputting the first resolution image signal to the image stretching processing unit 270;

The image stretching processing unit 270 is connected to the high resolution display area analyzing unit 250 and the Soc circuit 260. And performing a selective stretching process on the first resolution image signal input by the Soc circuit 260 according to the region parameter output by the high resolution display region analyzing unit 250, to obtain a second image having a higher resolution than the first resolution image signal. Resolution image signal.

Specifically, the image stretching processing unit 270 firstly corresponds to the MXN sub-regions of the high-resolution display panel 210, and divides the first resolution image signal input by the Soc circuit 260 into m×n sub-regions, and each sub-region is assigned a unique one. Number, where m, n are positive integers greater than 1, and m X n < MXN. When m X n=MXN, the number of each sub-area of the first-resolution image signal corresponds to the number of each sub-area of the high-resolution display panel 210, so that the first-resolution image signal can be determined more accurately a sub-area to be finely processed; and then performing a first pull on the sub-areas (numbers 5 and 6) corresponding to the area parameters (5 and 6) output from the high-resolution display area analyzing unit 250 in the first-resolution image signal The algorithm is processed by the extension algorithm, and the second sub-region is processed by the second stretching algorithm. Finally, all the sub-regions after the stretching process are spliced to obtain the second resolution image.

The timing controller driving circuit 280 is connected to the image stretching processing unit 270 for inputting the second resolution image signal to the high resolution display panel 210 for display.

According to the above technical solution of the present invention, high-resolution picture quality can be obtained in a region of interest of a human eye, and the present invention can significantly reduce the processing speed and hardware requirements for image data, compared with the global stretching technology of the existing television system. Achieve low cost of high resolution display.

The above described specific embodiments of the present invention are described in detail, and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

1. A high-resolution display method, including the following steps:

Divide the high-resolution display panel into M

Collect images of the viewer’s eyes;

Identify the first position of the pupil of the human eye based on the human eye image;

Determine a second position on the high-resolution display panel corresponding to the first position according to the identified first position;

According to the second position and the focusing radius R of the human eye, determine the sub-area on the high-resolution display panel that requires fine processing, and output the corresponding number as the area parameter; and

Selectively stretch the input first resolution image signal according to the regional parameters to obtain a second resolution image signal with a resolution higher than the first resolution image signal, and display it through the high resolution The panel is displayed.

2. The method according to claim 1, wherein the determining the second position on the high-resolution display panel corresponding to the first position based on the identified first position further includes:

Combined with the three-dimensional recognition of human body posture, the second position is determined.

3. The method according to claim 1, wherein the selective stretching processing of the input first resolution image signal according to the regional parameters further includes:

Corresponding to the M × N sub-regions of the high-resolution display panel, the first resolution image signal is divided into m , and m X n^ M X N;

Perform first stretching algorithm processing on the sub-region in the first resolution image signal corresponding to the region parameter, and perform second stretching algorithm processing on other sub-regions in the first resolution image signal; and performing splicing processing on all the stretched sub-regions to obtain the second resolution image signal.

4. The method according to claim 3, wherein the first resolution image signal is divided into m When , the number of each sub-area of the first resolution image signal corresponds to the number of each sub-area of the high-resolution display panel.

5. A high-resolution display system, including:

A high-resolution display panel is used to display high-resolution images, and the high-resolution display panel is divided into M XN sub-regions, and each sub-region corresponds to a unique number, where M and N are positive integers greater than 1; an image acquisition unit, installed on the high-resolution display panel, and used to collect the human eye image of the viewer;

A human eye recognition unit, connected to the image acquisition unit, and used to identify the first position of the pupil of the human eye based on the human eye image collected by the image acquisition unit;

A human eye focus position analysis unit, connected to the human eye recognition unit, and used to determine a second position corresponding to the first position on the high-resolution display panel based on the recognized first position;

A high-resolution display area analysis unit is connected to the human eye focus position analysis unit, and is used to determine the sub-sections on the high-resolution display panel that require fine processing based on the second position and the focus radius R of the human eye. area, and output the corresponding number as the area parameter;

A system-level chip circuit connected to the image stretching processing unit and used to input a first resolution image signal to the image stretching processing unit;

The image stretching processing unit is connected to the high-resolution display area analysis unit and the system-level chip circuit, and is used to input the system-level chip circuit according to the area parameters output by the high-resolution display area analysis unit. The first resolution image signal is selectively stretched to obtain a second resolution image signal with a resolution higher than the first resolution image signal;

A timing controller driving circuit is connected to the image stretching processing unit and used to input the second resolution image signal to the high-resolution display panel for display.

6. The system according to claim 5, wherein the human eye focus position analysis unit further determines the second position in combination with stereoscopic recognition of human body posture.

7. The system according to claim 5, wherein the image stretching processing unit first corresponds to the M × N sub-regions of the high-resolution display panel, and divides the first resolution image signal into m , and each sub-region is assigned a unique number, where m and n are positive integers greater than 1, and m Perform the first stretching algorithm processing, and perform the second stretching algorithm processing on other sub-regions in the first resolution image signal; Finally, perform splicing processing on all sub-regions after stretching processing, and obtain the second stretching algorithm. resolution image signal.

8. The system according to claim 7, wherein when m one correspondence