CN102638689A

Movatterモバイル変換

Info

Publication number: CN102638689A
Application number: CN2011100350162A
Authority: CN
Inventors: 陈岳勇
Original assignee: Ali Corp
Current assignee: Ali Corp
Priority date: 2011-02-09
Filing date: 2011-02-09
Publication date: 2012-08-15

Abstract

The invention discloses a three-dimensional display amplification method, which comprises the following steps: firstly, according to a cursor on a screen, calculating the parallax of an object pointed by the cursor, wherein the parallax polarity of the object behind the screen is defined to be positive, the parallax polarity of the object in front of the screen is defined to be negative, and the parallax polarity of the object on the screen is defined to be zero; storing the parallax of an object pointed by the cursor as an original parallax, and setting the current parallax to be equal to the original parallax; and judging whether the original parallax is larger than or equal to a first preset value, and if so, increasing the magnification factor of the object pointed by the cursor along with the movement to amplify the images of the left eye diagram and the right eye diagram and change the current parallax in the direction of negative polarity. The invention can make the user perform virtual interaction in the three-dimensional display system and can select the object in the image to zoom in. The user experience in the three-dimensional display system is consistent with that in the real world, so that the feeling of the user in his own experience is improved.

Description

Translated fromChinese

三维显示放大方法Three-dimensional display magnification method

技术领域technical field

本发明涉及一种显示系统的放大方法，尤其涉及一种三维显示放大方法。The invention relates to an enlargement method of a display system, in particular to a three-dimensional display enlargement method.

背景技术Background technique

我们在物理世界看实际物体时，人的两个眼睛会同时聚焦在感兴趣的点上，这时该点在人的视觉中视差为零，因为两个眼睛都是朝向它。一般而言，比零视差点远的物体在人的视觉中有正的视差，而比零视差点近的物体在人的视觉中有负的视差。上述正负视差的定义是相对的，类似的方式也可以倒过来定义。When we look at an actual object in the physical world, the two eyes of a person will focus on the point of interest at the same time. At this time, the parallax of the point in the human vision is zero, because both eyes are facing it. Generally speaking, objects farther than the zero parallax point have positive parallax in human vision, and objects closer than the zero parallax point have negative parallax in human vision. The above definitions of positive and negative parallax are relative, and similar methods can also be defined in reverse.

在三维影像拍摄时，两个镜头相当于人的两个眼睛，因此拍摄出来的影像中的物体的视差也有正负之分，所呈现在用户视觉中有负的视差的物体位置是在屏幕前面，而有正的视差的物体位置是在屏幕后面。这正也是三维的节目可以呈现三维的效果。When shooting 3D images, the two lenses are equivalent to the two eyes of a person, so the parallax of the objects in the captured images can also be positive or negative. The position of the object with negative parallax in the user's vision is in front of the screen. , while objects with positive parallax are positioned behind the screen. This is precisely why three-dimensional programs can present three-dimensional effects.

现有二维图像的放大方法，而三维图像是由左眼图和右眼图所组成的。如果把二维图像的放大方法直接用于三维图像，那么在放大图像的同时也放大了左眼图或右眼图视差的绝对值，然而视差的正负极性不会改变，因而二维图像的放大方法的缺点是，无法把一个原本处于屏幕后面的物体拉到屏幕前面来。Existing methods for enlarging two-dimensional images, and three-dimensional images are composed of left-eye images and right-eye images. If the magnification method of the 2D image is directly applied to the 3D image, then the absolute value of the parallax of the left or right eye image is also enlarged while the image is magnified, but the positive and negative polarity of the parallax will not change, so the 2D image The disadvantage of the magnification method is that it is impossible to pull an object that is originally behind the screen to the front of the screen.

欧洲专利公开号WO02071764A1揭示了一种三维图像的放大方法。此技术将图像放大区的视差调整到接近于0，从而避免使用传统二维放大方法所引起的视差过分增大，可以避免人脑将物体看成两个。但是此技术的缺点是，互动性很差，因此会影响用户身历其境的感觉。European Patent Publication No. WO02071764A1 discloses a method for enlarging a three-dimensional image. This technology adjusts the parallax of the image magnification area to be close to 0, so as to avoid the excessive increase of parallax caused by the traditional two-dimensional magnification method, and prevent the human brain from viewing objects as two. But the disadvantage of this technology is that the interactivity is very poor, so it will affect the user's immersive feeling.

如何对图像实现一种三维显示的放大方法，使用户在三维显示系统与现实世界中的体验相符，而能够带给用户有身历其境的互动感，这是一个有待克服的课题。How to implement a magnification method for 3D display of images, so that the user's experience in the 3D display system is consistent with the real world, and can bring the user a sense of interaction that is personally on the scene, is a problem to be overcome.

发明内容Contents of the invention

为了克服上述缺陷，本发明提出一种三维显示放大方法，包括：根据屏幕上的一光标，计算所述光标指向的物体的视差，其中定义物体在屏幕后面的视差极性为正，物体在屏幕前面的视差极性为负，物体在屏幕上的视差极性为零；存储所述光标指向的物体的视差为一原始视差，并且设当前视差等于所述原始视差；以及判别所述原始视差是否大于等于一第一预设值，当判别结果为是时，当判别结果为是时，所述光标所指的物体随着移动增大放大倍数，使左眼图与右眼图进行图像放大，并使所述当前视差往负极性方向变化。其中所述第一预设值为可视的极限视差距离。In order to overcome the above-mentioned defects, the present invention proposes a three-dimensional display magnification method, including: according to a cursor on the screen, calculating the parallax of the object pointed by the cursor, wherein the parallax polarity of the object behind the screen is defined as positive, and the parallax polarity of the object behind the screen is positive. The previous parallax polarity is negative, and the parallax polarity of the object on the screen is zero; store the parallax of the object pointed by the cursor as an original parallax, and set the current parallax equal to the original parallax; and determine whether the original parallax greater than or equal to a first preset value, when the judgment result is yes, when the judgment result is yes, the object pointed by the cursor increases the magnification as it moves, so that the left eye image and the right eye image are enlarged, And change the current parallax to the negative polarity direction. Wherein the first preset value is a visible limit parallax distance.

在本发明的一实施例中，若持续进行图像放大，则使所述当前视差往一极性方向变化。In an embodiment of the present invention, if the image enlargement continues, the current parallax is changed to a polarity direction.

在本发明的一实施例中，所述光标所指的物体的移动矢量的绝对值随着所述原始视差与所述第一预设值的差值的绝对值的增大而增大。In an embodiment of the present invention, the absolute value of the movement vector of the object pointed by the cursor increases as the absolute value of the difference between the original parallax and the first preset value increases.

在本发明的一实施例中，当判别所述原始视差大于等于所述第一预设值，所述三维显示放大方法还包括：分别增大左眼图与右眼图的放大倍数，据以对左眼图与右眼图进行拉近图像的放大，其中若持续进行图像放大，则使所述当前视差往负极性方向变化。In an embodiment of the present invention, when it is judged that the original parallax is greater than or equal to the first preset value, the 3D display magnification method further includes: respectively increasing the magnification of the left-eye image and the right-eye image, based on Zooming in on the left-eye image and the right-eye image is performed, wherein if the image enlargement is continued, the current parallax is changed to a negative polarity direction.

在本发明的一实施例中，当判别所述原始视差小于所述第一预设值，所述三维显示放大方法还包括：所述光标所指的物体随着移动减小放大倍数，使左眼图与右眼图进行图像缩小，并使所述当前视差往正极性方向变化。In an embodiment of the present invention, when it is determined that the original parallax is smaller than the first preset value, the 3D display magnification method further includes: reducing the magnification factor of the object pointed by the cursor as it moves, so that the left Image reduction is performed on the eye diagram and the right eye diagram, and the current parallax is changed to a positive direction.

在本发明的一实施例中，若持续进行图像放大，所述光标所指的物体的移动矢量的绝对值随着放大倍数增大而增大。In an embodiment of the present invention, if the image is continuously zoomed in, the absolute value of the movement vector of the object pointed by the cursor increases as the zoom factor increases.

在本发明的一实施例中，所述光标指向的物体为所述光标在左眼图或者右眼图中所在位置上的物体。In an embodiment of the present invention, the object pointed by the cursor is the object at the position of the cursor in the left eye image or the right eye image.

在本发明的一实施例中，所述三维显示放大方法还包括：检测一遥控器是否向用户的方向移动，当检测结果是向用户的方向移动时，则增大左眼图与右眼图的放大倍数；而当检测结果是向用户相反的方向移动时，则减小左眼图与右眼图的放大倍数。In an embodiment of the present invention, the method for magnifying the three-dimensional display further includes: detecting whether a remote controller is moving toward the user, and if the detection result is moving toward the user, increasing the left eye image and the right eye image magnification; and when the detection result is moving in the opposite direction to the user, then reduce the magnification of the left eye image and the right eye image.

本发明再提出一种三维显示放大方法，适用于一用户藉由一遥控器进行虚拟互动，而所述三维显示放大方法包括：根据屏幕上的一光标，计算所述光标指向的物体的视差，其中由所述用户藉由所述遥控器选择所述光标，并且定义物体在屏幕后面的视差极性为正，物体在屏幕前面的视差极性为负，物体在屏幕上的视差极性为零；存储所述光标指向的物体的视差为一原始视差，并且设当前视差等于所述原始视差；以及判别一按键的按压状态以及所述原始视差是否大于等于一第一预设值，当所述按键代表拉近图像的按键被按压或原始视差大于等于第一预设值时，判别结果为是，所述光标所指的物体随着移动增大放大倍数，使左眼图与右眼图进行图像放大，并使所述当前视差往负极性方向变化。其中所述第一预设值为可视的极限视差距离。The present invention further proposes a three-dimensional display magnification method, which is suitable for a user to perform virtual interaction through a remote control, and the three-dimensional display magnification method includes: according to a cursor on the screen, calculating the parallax of the object pointed by the cursor, The cursor is selected by the user through the remote controller, and the parallax polarity of the object behind the screen is defined as positive, the parallax polarity of the object in front of the screen is negative, and the parallax polarity of the object on the screen is zero ; storing the parallax of the object pointed by the cursor as an original parallax, and setting the current parallax equal to the original parallax; and judging whether a button is pressed and whether the original parallax is greater than or equal to a first preset value, when the When the button representing the zoomed-in image is pressed or the original parallax is greater than or equal to the first preset value, the judgment result is yes, and the object pointed by the cursor increases the magnification as it moves, so that the left-eye image and the right-eye image are aligned. The image is enlarged, and the current parallax is changed to a negative direction. Wherein the first preset value is a visible limit parallax distance.

在本发明的一实施例中，若所述按键被按压的次数增加，则持续进行图像放大，以使所述当前视差往一极性方向变化。In an embodiment of the present invention, if the number of times the button is pressed increases, the image enlargement is continued, so that the current parallax changes toward a polarity direction.

在本发明的一实施例中，所述三维显示放大方法还包括：检测所述遥控器是否向所述用户的方向移动；其中当判别所述原始视差大于等于所述第一预设值，且检测到所述遥控器向所述用户的方向移动时，则增大左眼图与右眼图的放大倍数；而当判别所述原始视差小于所述第一预设值，且检测到所述遥控器向所述用户相反的方向移动时，则减小左眼图与右眼图的放大倍数。In an embodiment of the present invention, the method for magnifying three-dimensional display further includes: detecting whether the remote controller moves toward the user; wherein when it is judged that the original parallax is greater than or equal to the first preset value, and When it is detected that the remote controller is moving toward the user, the magnification of the left eye image and the right eye image is increased; and when it is judged that the original parallax is smaller than the first preset value, and the When the remote controller moves in the opposite direction to the user, the magnifications of the left-eye image and the right-eye image are reduced.

为让本发明之上述特征和优点能更明显易懂，下文特举实施例，并配合所附图式，作详细说明如下。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

附图说明Description of drawings

图1是用来说明本发明实施例的视差形成图。FIG. 1 is a diagram illustrating parallax formation according to an embodiment of the present invention.

图2是依照本发明实施例的三维显示放大方法的流程图。Fig. 2 is a flow chart of a three-dimensional display zoom-in method according to an embodiment of the present invention.

图3是依照本发明另一实施例的三维显示放大方法的流程图。FIG. 3 is a flowchart of a three-dimensional display zoom-in method according to another embodiment of the present invention.

主要元件符号说明Description of main component symbols

L：左眼视野中的水平位置座标L: Horizontal position coordinates in the field of view of the left eye

R：右眼视野中的水平位置座标R: Horizontal position coordinates in the right eye field of view

S210～S250：三维显示放大方法流程图各步骤S210～S250: Each step of the flow chart of the three-dimensional display enlargement method

S310～S350：三维显示放大方法流程图各步骤S310～S350: Each step of the flow chart of the three-dimensional display enlargement method

具体实施方式Detailed ways

首先定义视差极性与屏幕的关系，物体在屏幕后面的视差极性为正，物体在屏幕前面的视差极性为负，物体在屏幕上的视差极性为零。上述的视差极性定义是相对的，也可以倒过来的定义。因此，比零视差点远的物体在人的视觉中有正的视差，而比零视差点近的物体在人的视觉中有负的视差。现在请参照图示，其中的展示只为了说明本发明的优选实施例，而非局限了其范畴。First define the relationship between the parallax polarity and the screen. The parallax polarity of the object behind the screen is positive, the parallax polarity of the object in front of the screen is negative, and the parallax polarity of the object on the screen is zero. The above definition of parallax polarity is relative, and can also be defined in reverse. Therefore, objects farther than the zero-disparity point have positive disparity in human vision, and objects closer than the zero-disparity point have negative disparity in human vision. Please refer now to the drawings, which are shown only to illustrate preferred embodiments of the present invention, not to limit its scope.

图1是用来说明本发明实施例的视差形成图。请参照图1。图1中的五个圆圈代表五个物体。当一个人的两个眼睛注视物体3时，位于一只眼睛和物体3连线上的物体在该眼睛的视野中处于中间的位置，而其他物体则根据其位于连线的左边还是右边以及其与连线的距离来决定其映射在该眼睛中的位置。在左眼视野中由左向右分别是物体1、物体2、物体3、物体4及物体5，而在右眼视野中由左向右分别是物体5、物体4、物体3、物体2及物体1。同一个物体分别在左右眼的视野中位置的差异称为视差。图1中物体3的视差为0，物体1具有绝对值最大的正视差，物体5具有绝对值最大的负视差。三维电影拍摄时就是用两个镜头代替图1中的两个眼睛。其中左眼图是左眼视野的图像，右眼图是右眼视野的图像，而左眼图与右眼图进行交迭可以用来形成三维图像。FIG. 1 is a diagram illustrating parallax formation according to an embodiment of the present invention. Please refer to Figure 1. The five circles in Figure 1 represent five objects. When a person's two eyes look at object 3, the object located on the line connecting one eye and object 3 is in the middle of the eye's field of vision, while other objects are located according to whether they are located on the left or right of the connecting line and other objects. The distance from the line determines where it is mapped in the eye. Object 1, Object 2, Object 3, Object 4 and Object 5 from left to right in the left eye field of view, and Object 5, Object 4, Object 3, Object 2 and Object 5 in the right eye field of view from left to right Object 1. The difference in the position of the same object in the field of view of the left and right eyes is called parallax. In Fig. 1, the parallax of object 3 is 0, object 1 has the positive parallax with the largest absolute value, and object 5 has the negative parallax with the largest absolute value. When shooting a three-dimensional movie, two lenses are used to replace the two eyes in Figure 1. The left-eye image is the image of the left-eye view, the right-eye image is the image of the right-eye view, and the overlapping of the left-eye image and the right-eye image can be used to form a three-dimensional image.

图2是依照本发明实施例的三维显示放大方法的流程图。请参照图2。此三维显示放大方法适用在三维显示系统。此方法的各步骤说明如下：Fig. 2 is a flow chart of a three-dimensional display zoom-in method according to an embodiment of the present invention. Please refer to Figure 2. The 3D display magnification method is applicable to a 3D display system. The steps of this method are described below:

步骤S210，根据屏幕上的一光标，计算光标指向的物体的视差。在三维显示系统中，用户可以控制、移动屏幕上的一个光标的位置而使该光标指向屏幕上的一个物体。光标可以是二维(two-dimension，简称为2D)的，则2D光标在左眼图中和在左右眼图中的位置相同。光标也可以是三维(three-dimension，简称为3D)的，则3D光标在左眼图中和在左右眼图中的位置不同。而左眼图中和右眼图中在相同位置上本来就可能有不同的物体，因此可取光标在左眼图位置上的物体或者在右眼图位置上的物体作为光标指向的物体。三维显示系统还可以对被指向的物体进行亮度或者颜色的改变，以让用户确认指向的物体。Step S210, according to a cursor on the screen, calculate the parallax of the object pointed by the cursor. In the three-dimensional display system, the user can control and move the position of a cursor on the screen so that the cursor points to an object on the screen. The cursor may be two-dimensional (2D for short), and the position of the 2D cursor in the left eye diagram is the same as that in the left and right eye diagrams. The cursor may also be three-dimensional (3D for short), and the position of the 3D cursor in the left eye diagram is different from that in the left and right eye diagrams. However, there may be different objects at the same position in the left-eye image and the right-eye image, so the object at the position of the cursor in the left-eye image or the object at the position of the right-eye image can be taken as the object pointed by the cursor. The three-dimensional display system can also change the brightness or color of the pointed object to allow the user to confirm the pointed object.

在本实施例中，物体在屏幕后面的视差极性可以定义为正，物体在屏幕前面的视差极性可以定义为负，物体在屏幕上的视差极性可以定义为零。此外，视差极性的定义不以此为限，也可以将正、负的定义反过来。In this embodiment, the parallax polarity of the object behind the screen can be defined as positive, the parallax polarity of the object in front of the screen can be defined as negative, and the parallax polarity of the object on the screen can be defined as zero. In addition, the definition of parallax polarity is not limited to this, and the definitions of positive and negative can also be reversed.

步骤S220，三维显示系统可以存储光标指向的物体的视差为一原始视差，并且设当前视差等于原始视差。In step S220, the 3D display system may store the disparity of the object pointed by the cursor as an original disparity, and set the current disparity equal to the original disparity.

步骤S230，判别原始视差是否大于等于第一预设值。第一预设值可以定义为在屏幕前而且离屏幕有“一定距离”的视差点(位置、距离)。例如，“第一预设值”可以为“可视的极限视差距离”。举例来说，第一预设值可以定义为从屏幕前视差0的位置开始，往负极性方向变化，一直到用户(或收视者)仍可以看清楚影像的距离。在实际应用上，三维显示系统可以往用户拉近物体，在逐渐拉近的放大过程中，当物体极度靠近用户的视差，之后的影像的清晰程度受到影响，用户开始看不清楚。Step S230, judging whether the original parallax is greater than or equal to a first preset value. The first preset value may be defined as a parallax point (position, distance) that is in front of the screen and has a "certain distance" from the screen. For example, the "first preset value" may be "visible limit parallax distance". For example, the first preset value can be defined as the distance from the front parallax of 0 to the negative polarity until the user (or viewer) can still see the image clearly. In practical application, the 3D display system can zoom in on the object to the user. During the gradual zoom-in process, when the object is extremely close to the parallax of the user, the clarity of the subsequent image will be affected, and the user will start to see clearly.

当判别结果为是时，进入步骤S240，光标所指的物体随着移动增大放大倍数，使左眼图与右眼图进行图像放大，并使当前视差往负极性方向变化。When the judgment result is yes, go to step S240, the object pointed by the cursor increases the magnification as it moves, the left eye image and the right eye image are enlarged, and the current parallax is changed to the negative polarity direction.

当判别结果为否时，进入步骤S250，光标所指的物体随着移动减小放大倍数，使左眼图与右眼图进行图像缩小，并使当前视差往正极性方向变化。When the judgment result is negative, go to step S250, the object pointed by the cursor decreases the magnification factor along with the movement, the left eye image and the right eye image are zoomed out, and the current parallax is changed to a positive polarity direction.

因此，若步骤S240或250中持续进行图像放大，则可以使当前视差往某一极性方向变化；进行图像的放大过程中，“放大”与光标所指的物体的移动具有连动的关系。光标所指的物体随着移动放大后的左眼图或者放大后的右眼图而移动。若持续进行图像放大，光标所指的物体的移动矢量的绝对值随着放大倍数增大而增大。因此，进行图像的放大过程中，“放大”与光标所指的物体的移动具有连动的关系。用户在三维显示系统与现实世界中的体验相符。如此，使用三维显示系统的用户(或收视者)可以有身历其境的感觉。Therefore, if the image enlargement is continued in step S240 or S250, the current parallax can be changed to a certain polarity direction; during the image enlargement process, "zooming in" has a linkage relationship with the movement of the object pointed by the cursor. The object pointed by the cursor moves as the enlarged left-eye image or the enlarged right-eye image is moved. If the image is enlarged continuously, the absolute value of the moving vector of the object pointed by the cursor increases with the increase of the magnification factor. Therefore, in the process of zooming in on an image, "zooming in" is interlocked with the movement of the object pointed by the cursor. The user's experience in the 3D display system matches the experience in the real world. In this way, users (or viewers) who use the 3D display system can have the feeling of being there.

基于图2实施例所教示的内容，在另一实施例中，为了加强用户与三维显示系统的互动感，当判别原始视差大于等于第一预设值，三维显示放大方法还可以有如下的步骤，但不以此例为限。分别增大左眼图与右眼图的放大倍数，据以对左眼图与右眼图进行拉近图像的放大，其中若持续进行图像放大，则使当前视差可以往负极性方向变化，如此，光标指向的物体会慢慢地放大，同时慢慢地往用户(或收视者)移动，而且所指的物体的移动矢量的绝对值随着放大倍数增大而增大。Based on the content taught by the embodiment in Figure 2, in another embodiment, in order to enhance the user's sense of interaction with the 3D display system, when it is determined that the original parallax is greater than or equal to the first preset value, the 3D display magnification method can also have the following steps , but not limited to this example. Increase the magnification of the left-eye image and the right-eye image respectively, so as to zoom in on the left-eye image and the right-eye image. If the image is continuously enlarged, the current parallax can change in the direction of negative polarity, so , the object pointed by the cursor will slowly zoom in and move towards the user (or viewer) slowly at the same time, and the absolute value of the moving vector of the pointed object will increase as the magnification factor increases.

或者，当判别原始视差小于第一预设值时，光标所指的物体随着移动减小放大倍数，使左眼图与右眼图进行图像缩小，并使当前视差往正极性方向变化。Or, when it is judged that the original parallax is smaller than the first preset value, the object pointed by the cursor decreases the magnification as it moves, so that the images of the left eye image and the right eye image are zoomed out, and the current parallax is changed to a positive direction.

又例如，依据图2的流程图的另一实施例，原始视差为D0，放大图像倍数可以为N倍，因此对左眼图与右眼图进行图像放大动作本身会把视差的绝对值放大为|D0*N|，而极性不变。For another example, according to another embodiment of the flow chart in FIG. 2 , the original parallax is D0, and the magnification factor of the image can be N times, so the image magnification action on the left-eye image and the right-eye image itself will amplify the absolute value of the parallax to |D0*N|, while the polarity does not change.

再以“指向物体”处于屏幕后、屏幕上、屏幕前的三个位置的状态做更详尽的说明如下。(1)如果物体原本在屏幕后面，原始视差为正，放大后的视差由于绝对值增大而极性仍为正，造成物体远离用户。(2)如果物体原本正好在屏幕上，因为时差为0，则不管放大几倍物体仍然在屏幕上。(3)如果物体原本在屏幕前面，放大后的视差的绝对值增大而极性仍为负，物体靠近用户，这与现实世界中的体验是相符的。(4)但是，如果物体原本在屏幕前面而又离屏幕很近，则原始视差的绝对值很小，放大后的视差靠近用户的效果不明显，因此三维显示系统有必要移动放大后的左眼图或者放大后的右眼图，而使所述当前视差往负极性方向变化，以增强放大后物体靠近用户的效果。A more detailed description is given below with the state that the "pointing object" is in three positions: behind the screen, on the screen, and in front of the screen. (1) If the object is originally behind the screen, the original parallax is positive, and the enlarged parallax is still positive due to the increase in absolute value, causing the object to move away from the user. (2) If the object was originally on the screen, because the time difference is 0, the object is still on the screen no matter how many times it is enlarged. (3) If the object is originally in front of the screen, the absolute value of the parallax after zooming in increases and the polarity is still negative, and the object is close to the user, which is consistent with the experience in the real world. (4) However, if the object is originally in front of the screen but is very close to the screen, the absolute value of the original parallax is very small, and the effect of the enlarged parallax approaching the user is not obvious, so it is necessary for the 3D display system to move the enlarged left eye image or the enlarged right eye image, and the current parallax is changed in the negative polarity direction, so as to enhance the effect that the enlarged object is close to the user.

值得一提得是，在三维显示系统中可以预设一个步长S用于控制移动的距离，计算移动矢量为Shift＝-(S*N)，注意如果物体原本在屏幕后面，则S的值要使-(S*N)-(D0*(N-1))小于0，以使所述当前视差往负极性方向变化。也可以计算移动矢量为Shift＝-(S*N)-(D0*(N-1))。这样就确保使所述当前视差往负极性方向变化。计算移动矢量的公式还可以有很多变化，但不以此为限，例如Shift＝-(S*N)-(D0*N)，这样移动矢量的起点值高一点。或者预设若干表格，根据D0和N进行查表而得到Shift。总之，要使所述当前视差往负极性方向变化，这样当用户逐渐增大放大倍数时，光标指向的物体就会逐渐靠近用户。用户在三维显示系统与现实世界中的体验可以相符。It is worth mentioning that in the 3D display system, a step size S can be preset to control the moving distance, and the calculated moving vector is Shift=-(S*N). Note that if the object is originally behind the screen, the value of S Make -(S*N)-(D0*(N-1)) less than 0, so that the current parallax changes in the direction of negative polarity. It is also possible to calculate the movement vector as Shift=-(S*N)-(D0*(N-1)). In this way, it is ensured that the current disparity changes in the direction of negative polarity. The formula for calculating the moving vector can be changed in many ways, but not limited thereto, for example, Shift=-(S*N)-(D0*N), so that the starting point value of the moving vector is a little higher. Or preset several tables, look up the tables according to D0 and N to get Shift. In a word, the current parallax should be changed in the direction of negative polarity, so that when the user gradually increases the magnification, the object pointed by the cursor will gradually approach the user. The user's experience in the 3D display system can be consistent with that in the real world.

另外，基于图2实施例所教示的内容，在又一实施例中，三维显示系统可以检测用于互动的遥控器是否移动，而三维显示放大方法还可以包括如下的步骤：先检测遥控器是否向用户的方向移动，当检测结果是向用户的方向移动时，则增大左眼图与右眼图的放大倍数；而当检测结果是向用户相反的方向移动时，则减小左眼图与右眼图的放大倍数。In addition, based on the content taught by the embodiment in FIG. 2 , in yet another embodiment, the 3D display system can detect whether the remote controller used for interaction moves, and the 3D display magnification method can also include the following steps: Move in the direction of the user, when the detection result is moving in the direction of the user, increase the magnification of the left eye image and the right eye image; and when the detection result is moving in the opposite direction of the user, reduce the left eye image Magnification with right eye image.

图3是依照本发明另一实施例的三维显示放大方法的流程图。图3与图2的流程架构相似。请参照图3。此三维显示放大方法适用于一用户藉由一遥控器在三维显示系统中进行虚拟互动。此三维显示放大方法可以具有以下步骤。FIG. 3 is a flowchart of a three-dimensional display zoom-in method according to another embodiment of the present invention. Figure 3 is similar to the process architecture of Figure 2 . Please refer to Figure 3. The 3D display magnification method is suitable for a user to perform virtual interaction in a 3D display system through a remote controller. This three-dimensional display enlargement method may have the following steps.

步骤S310，三维显示系统根据屏幕上的一光标，计算光标指向的物体的视差。三维显示系统可以接收用户运用遥控器在屏幕上所选择的一个光标。用户可以控制、移动屏幕上的光标的位置。其中物体在屏幕后面的视差极性可以定义为正，物体在屏幕前面的视差极性可以定义为负，物体在屏幕上的视差极性可以定义为零。此外，视差极性的定义不以此为限，也可以将正、负的定义反过来。Step S310, the 3D display system calculates the parallax of the object pointed by the cursor according to a cursor on the screen. The 3D display system can receive a cursor selected by the user on the screen by using the remote controller. The user can control and move the position of the cursor on the screen. The parallax polarity of the object behind the screen can be defined as positive, the parallax polarity of the object in front of the screen can be defined as negative, and the parallax polarity of the object on the screen can be defined as zero. In addition, the definition of parallax polarity is not limited to this, and the definitions of positive and negative can also be reversed.

步骤S320，三维显示系统可以存储光标指向的物体的视差为一原始视差，并且设当前视差等于原始视差。In step S320, the 3D display system may store the disparity of the object pointed by the cursor as an original disparity, and set the current disparity equal to the original disparity.

步骤S330，判别一按键的按压状态以及原始视差是否大于等于第一预设值。其中第一预设值可以为可视的极限视差距离。Step S330 , judging whether the pressed state of a button and the original parallax are greater than or equal to a first preset value. Wherein the first preset value may be a visible limit parallax distance.

当所述按键代表拉近图像的按键被按压或原始视差大于等于第一预设值时，判别结果为是，接着进入步骤S340，光标所指的物体随着移动增大放大倍数，使左眼图与右眼图进行图像放大，并使当前视差往负极性方向变化。When the button representing the zoomed-in image is pressed or the original parallax is greater than or equal to the first preset value, the judgment result is yes, and then enters step S340, and the object pointed by the cursor increases the magnification along with the movement, so that the left eye The image and the right eye image are enlarged, and the current parallax is changed to the negative direction.

当所述按键代表推远图像的按键被按压或原始视差小于第一预设值时，判别结果为否，接着进入步骤S350，光标所指的物体随着移动减小放大倍数，使左眼图与右眼图进行图像缩小，并使当前视差往正极性方向变化。When the button that represents the image that is pushed far away is pressed or the original parallax is smaller than the first preset value, the result of the judgment is No, and then enters step S350, where the object pointed by the cursor decreases the magnification as it moves, so that the left eye image Zoom out the image with the right eye image, and make the current parallax change in the direction of positive polarity.

举例来说，于步骤S330可以检测用户(或收视者)是否按压遥控器的“移动键”，可以根据“移动键”的按压状态以使图像放大。例如此移动键可以是Zoom-in功能键或Zoom-out功能键，但不以此为限。For example, in step S330, it can be detected whether the user (or the viewer) presses the "movement key" of the remote controller, and the image can be enlarged according to the pressing state of the "move key". For example, the moving key may be a Zoom-in function key or a Zoom-out function key, but not limited thereto.

另外，当用户持续增加按压Zoom-in功能键的次数，则可以表示持续进行拉近图像放大与显示，而使当前视差往负极性方向变化，也就是所指向的物体(渐渐地)向用户的方向移动。反之，当用户持续增加按压Zoom-out功能键的次数，可以持续进行推远图像放大与显示，而使当前视差往正极性方向变化，也就是所指向的物体(渐渐地)向用户的相反方向移动。In addition, when the user continues to press the Zoom-in function key more times, it can mean that the zoom-in image is continuously zoomed in and displayed, so that the current parallax changes in the direction of negative polarity, that is, the pointed object (gradually) moves towards the user's direction to move. Conversely, when the user continues to press the Zoom-out function key more times, the zoom-out image can be continuously enlarged and displayed, so that the current parallax changes in the positive direction, that is, the pointed object (gradually) faces the user in the opposite direction move.

基于图3实施例所教示的内容，为了加强三维显示系统与用户的互动感，三维显示系统还可以根据检测遥控器是否向用户的方向移动，根据结果来确定极性方向，而详细实施方式可以有如下步骤，但不以此为限。当判别原始视差大于等于第一预设值，且检测到遥控器向用户的方向移动时，可以分别增大左眼图与右眼图的放大倍数，据以对左眼图与右眼图进行拉近图像的放大。而当判别原始视差小于第一预设值，且检测到遥控器向用户相反的方向移动时，则减小左眼图与右眼图的放大倍数，据以对左眼图与右眼图进行推远图像的放大Based on the content taught by the embodiment in Figure 3, in order to enhance the sense of interaction between the 3D display system and the user, the 3D display system can also determine the polarity direction according to the result of detecting whether the remote controller is moving in the direction of the user, and the detailed implementation method can be There are the following steps, but not limited thereto. When it is judged that the original parallax is greater than or equal to the first preset value, and it is detected that the remote controller is moving towards the user, the magnifications of the left-eye image and the right-eye image can be respectively increased, so as to carry out the left-eye image and the right-eye image. Zoom in on the image. And when it is judged that the original parallax is smaller than the first preset value, and it is detected that the remote controller is moving in the opposite direction to the user, then the magnification of the left eye image and the right eye image is reduced, and the left eye image and the right eye image are processed accordingly. zoom out image

依照本发明实施例的上文描述，本发明至少具有如下的优点：可让用户选中一个物体然后把它拉近或者推远，互动感很强，还可以把光标画成一只手臂的形状，以虚拟用户的手臂在三维影像中抓住物体，然后把它拉近或者推远，如此一来，用户在三维显示系统与现实世界中的体验相符，增强用户身历其境的感觉。According to the above description of the embodiments of the present invention, the present invention has at least the following advantages: the user can select an object and then pull it closer or farther away, which has a strong sense of interaction, and the cursor can also be drawn in the shape of an arm to The virtual user's arm grasps the object in the 3D image, and then pulls it closer or farther away. In this way, the user's experience in the 3D display system is consistent with the real world, enhancing the user's immersive feeling.

综上所述，本发明的三维显示放大方法在图像进行放大时能够把原本在屏幕后面的物体拉到屏幕前面来，而且随着放大倍数的增加，该物体离用户越近，可以带给用户有身历其境的互动感。To sum up, the 3D display magnification method of the present invention can pull the object originally behind the screen to the front of the screen when the image is magnified, and as the magnification increases, the closer the object is to the user, the more it can be brought to the user. There is an immersive sense of interaction.

虽然本发明以实施例揭示如上，但其并非用以限定本发明，任何本领域技术人员，在不脱离本发明的精神和范围内，可作任意改动或等同替换，故本发明的保护范围应当以本发明权利要求要求所界定的范围为准。Although the present invention is disclosed above with the embodiment, it is not intended to limit the present invention, and any person skilled in the art can make any changes or equivalent replacements without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be The scope defined by the claims of the present invention shall prevail.