WO2017024626A1 - 裸眼3d成像方法及系统 - Google Patents

裸眼3d成像方法及系统 Download PDF

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WO2017024626A1
WO2017024626A1 PCT/CN2015/088427 CN2015088427W WO2017024626A1 WO 2017024626 A1 WO2017024626 A1 WO 2017024626A1 CN 2015088427 W CN2015088427 W CN 2015088427W WO 2017024626 A1 WO2017024626 A1 WO 2017024626A1
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display
vertex
image
coordinates
contour
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French (fr)
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郭东胜
陈宥烨
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/275—Image signal generators from three-dimensional [3D] object models, e.g. computer-generated stereoscopic image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/139—Format conversion, e.g. of frame-rate or size
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/398—Synchronisation thereof; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2213/00—Details of stereoscopic systems
    • H04N2213/006—Pseudo-stereoscopic systems, i.e. systems wherein a stereoscopic effect is obtained without sending different images to the viewer's eyes

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a naked eye 3D imaging method and system.
  • 3D is the first letter of the English word Dimension (line, dimension). 3D refers to the three-dimensional space. Compared with ordinary 2D screen display, 3D technology can make the picture stereoscopic, and the image is no longer limited to the screen plane, as if it can get out of the screen, so that the audience has an immersive feeling.
  • 3D display technology Although the classification of 3D display technology is numerous, the most basic principle is similar, that is, using the human eye to receive different pictures separately, and then the brain is superimposed and regenerated by image information to form a front-back, up-down, left-right , far-near and other stereoscopic effects of the image.
  • the glasses-type 3D technology we can subdivide three main types: color difference, polarized type and film naked eye type.
  • color difference color difference
  • polarized type polarized type
  • film naked eye technology has higher cost and poor imaging performance.
  • the object of the present invention is to provide a naked eye 3D imaging method and system, which can realize naked eye stereo imaging, is convenient for popularization, and can ensure imaging effect.
  • the invention provides a naked eye 3D imaging system, the system comprises a horizontal plane and a vertical plane perpendicular to the horizontal plane, a display, a support for fixing the display, and an image stretching control module is provided in the control system of the display, the support
  • the display mounts the display on a vertical plane, and the display is tilted in a vertical plane direction, the display screen of the display is disposed at an oblique angle to the horizontal plane, and the image stretching control module is configured to change the tilt Display image size of the rear display to achieve vertical A stereoscopic image is formed in a straight plane.
  • the support body includes a carrier plate and a fixing plate disposed at an angle with the carrier plate, the fixing plate is fixed to the vertical plane and parallel to the vertical plane, and the carrier board carries the display.
  • the display screen of the display is parallel to the carrier plate.
  • the invention provides a naked eye 3D imaging method, the method comprising
  • the display on the vertical plane is inclined with respect to the horizontally facing display screen away from the display such that the display screen of the display is at an oblique angle ⁇ to the horizontal plane;
  • the line connecting the viewpoint R and the contour coordinates of the preset image projection is a straight line, and the contour coordinates of the preset image are on the straight line;
  • each of the projected coordinate points confirmed on the display screen corresponds to one pixel unit of the display.
  • the original image contour is a rectangle, and the contour coordinates are positions where the four vertices of the rectangle are located; and the four vertices are clockwise, respectively, a vertex A, a vertex B, a vertex C, and a vertex D, wherein the vertex C and The coordinates of the vertex D are known quantiles, and the origin O is located between the vertex C and the vertex D.
  • the contour of the screen displayed by the tilted display screen is a rectangle, and the contour coordinates are positions of four vertices of the rectangle; and the four vertices are clockwise, vertex F, vertex E, and Vertex C and vertex D.
  • the preset image contour is a rectangle smaller than the original image size, and the contour coordinates of the preset image are positions of four vertices of a rectangle formed by the preset image.
  • the four vertices of the preset image contour coordinates are clockwise, respectively, a vertex J (0, -y2, z2), a vertex K (0, y2, z2), and the vertex C and the vertex D, a function y2
  • the function z2 satisfies the following conditions: Where w is the coordinate value of the vertex C and the vertex D on the x-axis, the x1 is the coordinate value of the vertex F and the vertex E on the x-axis, and z1 is the coordinate value of the vertex F and the vertex E on the z-axis.
  • the projection coordinate point of any one of the coordinate points Y(0, y3, z3) included in the contour coordinates of the preset image on the display screen is Z (x4, y4, z4) ), function x4 meets the following conditions:
  • the viewing point O is on the same line as the Y point and the Z point.
  • the naked-eye 3D imaging method of the present invention first calculates a preset image size on a plane (vertical plane) of a normal projection image, and projects the screen to a tilt angle after the screen is rotated, and then projects the image onto the display screen according to the preset image size. Determining the imaging range and converting it into a digital signal input display control module, so that the display image of the display screen coincides with the preset image size, and the image viewed at the viewing point is not the deformed image after tilting or the plane
  • the image is a stereoscopic image of the 3D effect, without the need to wear 3D eyes, and does not require the high cost of the film naked-eye technology, and can be realized.
  • the high impact effect can be widely applied to promotional venues such as shopping malls.
  • FIG. 1 is a schematic view of a naked eye 3D imaging system of the present invention
  • FIG. 2 is a flow chart of a naked eye 3D imaging method of the present invention
  • FIG. 3 and FIG. 4 are schematic diagrams showing the coordinates of the naked-eye 3D imaging method of the present invention inferred according to the naked-eye 3D imaging system.
  • a preferred embodiment of the present invention provides a naked-eye 3D imaging system including a horizontal plane 1 and a vertical plane 2 perpendicular to the horizontal plane 2, a display 3, and a support 4 of the fixed display 3, the display 3
  • An image stretching control module is provided in the control system, the support body 4 mounts the display on the vertical plane 2, and the display 3 is tilted in the direction of the vertical plane 2, and the display screen 31 of the display 3
  • the horizontal plane 1 is disposed at an oblique angle ⁇ , and the image stretching control module is configured to change the display image size of the tilted display 3 to form a stereoscopic image in the vertical plane 2.
  • the horizontal plane 1 may be a bottom surface, a platform parallel to the ground, or the like.
  • the horizontal plane 2 is the ground.
  • the vertical plane 2 is a wall or a bracket or the like. This embodiment is preferably a wall, and the naked-eye 3D imaging system described in this embodiment is more suitable for an advertising application or a home application.
  • the support body 4 includes a carrier plate 41 and a fixing plate 42 disposed at an angle with the carrier plate 41.
  • the fixing plate 42 is fixed to the vertical plane 2 and parallel to the vertical plane 2 .
  • the carrier board 41 carries the display 3, and the display screen 31 is parallel to the carrier board 41.
  • the present invention provides a naked eye 3D imaging method, the method comprising:
  • step S1 it is confirmed that the display displays the outline coordinates of the image in a vertical plane.
  • the image is an original image
  • an intermediate point of a straight line formed by two points on the horizontal plane of the original image is an origin O.
  • step S2 the coordinates of the viewing point R to the original image are determined, and the coordinates include a height h from the horizontal plane and a length l from the origin.
  • the R coordinate of the viewing point is (-1, 0, h), which is a known quantification.
  • the viewing point is based on the position of the display and the average position that may be calculated as the range of viewing points.
  • step S3 the display on the vertical plane is tilted relative to the horizontally facing display screen away from the display such that the display screen of the display is at an oblique angle ⁇ to the horizontal.
  • the tilt angle is a known amount.
  • the original image contour is a rectangle, and the contour coordinates are the positions of the four vertices of the rectangle; and the four vertices are clockwise, vertex A, vertex B, vertex C, and vertex D, respectively.
  • the coordinates of the vertex C and the vertex D are known quantiles, and the origin O is located between the vertex C and the vertex D.
  • the image displayed by the display screen is a rectangle
  • the vertex C and the vertex D are coordinates of two end points of the edge of the display screen on the horizontal plane 2, that is, the vertex coordinates of the two angles of the rectangle
  • the origin O coordinate is (0, 0, 0)
  • the vertex C coordinate is (0, w, 0)
  • the vertex D (0, -w, 0)
  • w is known
  • the amount depends on the size of the actual screen.
  • step S4 the contour coordinates of the preset image formed in the vertical plane of the original image are calculated according to the coordinates, the height h, the length l, and the tilt angle ⁇ of the two points on the horizontal plane of the original image.
  • the two points of the preset image contour coordinate at the horizontal plane are the same as the coordinates of the two points of the original image on the horizontal plane.
  • the outline of the screen displayed by the tilted display screen is a rectangle, and the contour coordinates are positions of four vertices of the rectangle; and the four vertices are clockwise, vertex F, vertex E, and The vertex C and the vertex D.
  • the vertex F coordinate is (x1, -w1, z1)
  • the vertex E coordinate is (0, w, 0).
  • x1 d ⁇ sin ⁇
  • z1 d ⁇ cos ⁇ .
  • the preset image contour is a rectangle smaller than the original image size, and the contour coordinates of the preset image are positions of four vertices of a rectangle formed by the preset image.
  • the four vertices in the clockwise coordinate of the preset image contour coordinate are the vertex J (0, -y2, z2), the vertex K (0, y2, z2), and the vertex C and the vertex D, respectively, and the function y2 satisfies the following condition:
  • the function z2 satisfies the following conditions: Where w is the coordinate value of the vertex C and the vertex D on the x-axis, the x1 is the coordinate value of the vertex F and the vertex E on the x-axis, and z1 is the coordinate value of the vertex F and the vertex E on the z-axis, then, As can be seen from the figure, get by get
  • step S5 the contour coordinates of the preset image are calculated according to each coordinate point included in the contour coordinates of the preset image, the height h, the length l, and the tilt angle ⁇ .
  • This step is mainly to cut a picture formed by the tilted display screen on the vertical plane, and remove the portion beyond the outline of the preset image to avoid deformation of the image.
  • a projection coordinate point Z (x4, y4, z4) of any one of the coordinate points Y (0, y3, z3) included in the contour coordinates of the preset image on the display screen is further ) meets the following conditions:
  • the coordinate point Y (0, y3, z3) is a known amount.
  • the z4 is a known amount, then You can get the value of x4, and then you can get x4 and z4 as known values.
  • the line connecting the viewpoint R and the contour coordinates of the preset image projection is a straight line, and the contour coordinates of the preset image are on the straight line.
  • Step S6 converting all projection coordinate points of the contour coordinates of the preset image on the display screen into an image stretching control module of the digital signal input display, causing the display to form the preset image and image the vertical image Straight on the plane.
  • the naked-eye 3D imaging method of the present invention first calculates a preset image size on a plane (vertical plane) of a normal projection image, and projects the screen to a tilt angle after the screen is rotated, and then projects the image onto the display screen according to the preset image size. Determining the imaging range and converting it into a digital signal input display control module, so that the display image of the display screen coincides with the preset image size, and the image viewed at the viewing point is not the deformed image after tilting or the plane
  • the image is a stereoscopic image with 3D effect. It does not need to wear 3D eyes, and does not need the high cost like the naked-eye technology of the film, and can achieve a high impact effect. At the same time, it can be widely applied to promotional places such as shopping malls.
  • each projected coordinate point confirmed on the display screen corresponds to one pixel unit of the display.
  • the viewing point O is on the same line as the Y point and the Z point.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Projection Apparatus (AREA)

Abstract

一种裸眼3D成像方法，包括：确认显示器（3）在竖直平面（2）内显示影像的轮廓坐标，确定观看点R到原始影像的坐标，使显示器（3）的显示屏幕（31）与水平面（1）呈一倾斜角θ；根据原始影像在水平面（1）上的两个点的坐标、高度h、长度l以及倾斜角θ计算出在原始影像所在的竖直平面（2）内形成的预设影像的轮廓坐标；根据高度h、长度l以及倾斜角θ计算出预设影像的轮廓坐标所包含在内的所有坐标点在显示屏幕（31）上的投影坐标点；将显示屏幕（31）上的预设影像的轮廓坐标的所有投影坐标点转换成数字信号输入显示器（3）的影像拉伸控制模块，使显示器（3）形成预设影像并成像于竖直平面（2）上。

Description

裸眼3D成像方法及系统
本发明要求2015年8月13日递交的发明名称为“裸眼3D成像方法及系统”的申请号201510497748.1的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，特别涉及一种裸眼3D成像方法及系统。
背景技术
“3D”里的“D”，是英文单词Dimension(线度、维)的首字母。3D指的就是三维空间。与普通2D画面显示相比，3D技术可以使画面变得立体逼真，图像不再局限于屏幕平面，仿佛能够走出屏幕外面，让观众有身临其境的感觉。
尽管3D显示技术分类繁多，不过最基本的原理是相似的，就是利用人眼左右分别接收不同画面，然后大脑经过对图像信息进行叠加重生，构成一个具有前-后、上-下、左-右、远-近等立体方向效果的影像。在眼镜式3D技术中，我们又可以细分出三种主要的类型：色差式、偏光式和贴膜裸眼式。但是，大多现有的相对传统的3D显示技术，往往都需要观众佩戴眼镜进行观看，且容易产生闪烁，不便于推广应用。而贴膜裸眼式技术成本较高，成像效果不佳。
发明内容
本发明的目的在于提供一种裸眼3D成像方法及系统，实现裸眼立体成像，便于推广，且可保证成像效果。
本发明提供一种裸眼3D成像系统，所述系统包括水平面及与水平面垂直的竖直平面、显示器、固定显示器的支撑体，所述显示器的控制系统中设有影像拉伸控制模块，所述支撑体将显示器装于竖直平面上，并且所述显示器向竖直平面方向倾斜，所述显示器的显示屏幕与所述水平面呈一倾斜角设置，所述影像拉伸控制模块用于改变所述倾斜后的显示器的显示影像尺寸，以实现在竖 直平面内形成立体影像。
其中，所述支撑体包括承载板及与承载板呈夹角设置的固定板，所述固定板固定于所述竖直平面且与所述竖直平面平行，所述承载板承载所述显示器，所述显示器的显示屏幕与所述承载板平行。
本发明提供一种裸眼3D成像方法，所述方法包括，
确认显示器在竖直平面内显示影像的轮廓坐标，其中，所述影像为原始影像，所述原始影像在水平面上的两个点所成直线的中间点为原点O；
确定观看点R到原始影像的坐标，坐标包括距离水平面的高度h与距离原点的长度l；
将竖直平面上的显示器相对水平面向远离显示器的显示屏幕方向倾斜，使所述显示器的显示屏幕与水平面呈一倾斜角θ；
根据所述原始影像在水平面上的两个点的坐标、高度h、长度l及倾斜角θ计算出在所述原始影像所的竖直平面内形成的预设影像的轮廓坐标；其中，所述预设影像轮廓坐标位于水平面的两个点与所述原始影像在水平面上的两个点坐标相同；
根据所述预设影像的轮廓坐标所包含在内的每一坐标点、所述的高度h、长度l及倾斜角θ计算出所述预设影像的轮廓坐标所包含在内的所有坐标点在所述显示屏幕上的投影坐标点；
其中，观看点R与所述预设影像投影的轮廓坐标的连线为直线，所述预设影像的轮廓坐标在所述直线上；
将所述显示屏幕上的所述预设影像的轮廓坐标的所有投影坐标点转换成数字信号输入显示器的影像拉伸控制模块，使显示器形成所述预设影像并成像于所述竖直平面上。
其中，在所述显示屏幕上确认的每一投影坐标点均对应所述显示器的一个像素单元。
其中，所述原始影像轮廓为矩形，所述轮廓坐标为所述矩形的四个顶点所在位置；且四个顶点顺时针方向分别为顶点A、顶点B、顶点C及顶点D，其中顶点C及顶点D的坐标为已知定量，所述原点O位于所述顶点C与顶点D的中间。
其中，所述倾斜后的显示屏幕所显示的画面的轮廓为矩形，所述轮廓坐标为所述矩形的四个顶点所在位置；且四个顶点顺时针方向分别为顶点F、顶点E、以及所述的顶点C及顶点D。
其中，所述预设影像轮廓为小于所述原始影像尺寸的矩形，所述预设影像的轮廓坐标为预设影像形成的矩形的四个顶点所在位置。
其中，所述预设影像轮廓坐标四个顶点顺时针方向分别为顶点J(0，-y2，z2)、顶点K(0，y2，z2)、以及所述的顶点C及顶点D，函数y2满足以下条件：
Figure PCTCN2015088427-appb-000001
函数z2满足以下条件：
Figure PCTCN2015088427-appb-000002
其中，w是顶点C及顶点D在x轴的坐标值，所述x1为顶点F与顶点E在x轴上的坐标值，z1为顶点F与顶点E在z轴上的坐标值。
其中，所述预设影像的轮廓坐标所包含在内的所有坐标点中的任意一个坐标点Y(0，y3，z3)在所述显示屏幕上的投影坐标点为Z(x4，y4，z4)，函数x4符合以下条件：
Figure PCTCN2015088427-appb-000003
函数y4符合以下条件：
Figure PCTCN2015088427-appb-000004
函数z4符合以下条件：
Figure PCTCN2015088427-appb-000005
其中，所述坐标点Y(0，y3，z3)为已知量。
其中，所述观看点O与所述Y点及所述Z点在同一直线上。
综上所述，本发明的裸眼3D成像方法是先在正常放映影像的平面(竖直平面)计算出预设影像尺寸，将显示屏幕旋转倾斜角后根据预设影像尺寸投影至显示屏幕上的确定成像范围并转换成数字信号输入显示器控制模块，使显示屏幕的显示影像与所述预设影像尺寸重合，利用返透视原理，在观看点观看到的影像即不是倾斜后的变形影像也不是平面影像，而是3D效果的立体影像，无需佩戴3D眼睛，也不需要像贴膜裸眼式技术那样较高的成本，并可实现较 高的影响效果，同时可以广泛应用到商场等宣传场地。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明的裸眼3D成像系统示意图；
图2是本发明裸眼3D成像方法的流程图；
图3与图4是本发明的裸眼3D成像方法根据裸眼3D成像系统进行推断使用的坐标示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，本发明佳实施方式提供一种裸眼3D成像系统，所述系统包括水平面1及与水平面1垂直的竖直平面2、显示器3、固定显示器3的支撑体4，所述显示器3的控制系统中设有影像拉伸控制模块，所述支撑体4将显示器装于竖直平面2上，并且所述显示器3向竖直平面2方向倾斜，所述显示器3的显示屏幕31与所述水平面1呈一倾斜角θ设置，所述影像拉伸控制模块用于改变所述倾斜后的显示器3的显示影像尺寸，以实现在竖直平面2内形成立体影像。
本实施例中，水平面1可以是底面，以地面平行的平台等。本实施例中水平面2为地面。所述竖直平面2为墙壁或支架等。本实施例优选墙壁，并且本实施例中所述的裸眼3D成像系统更适合用于广告应用或家庭应用。
本实施例中，所述支撑体4包括承载板41及与承载板41呈夹角设置的固定板42，所述固定板42固定于所述竖直平面2且与所述竖直平面2平行，所 述承载板41承载所述显示器3，所述显示屏幕31与所述承载板41平行。
请参阅图2，本发明提供一种裸眼3D成像方法，所述方法包括：
步骤S1，确认显示器在竖直平面内显示影像的轮廓坐标。其中，所述影像为原始影像，所述原始影像在水平面上的两个点所成直线的中间点为原点O。
步骤S2，确定观看点R到原始影像的坐标，坐标包括距离水平面的高度h与距离原点的长度l。其中观看点R坐标为(-1，0，h)，为已知定量。其中观看点根据所述显示器的位置与可能作为观看点范围计算出的平均位置。
步骤S3，将竖直平面上的显示器相对水平面向远离显示器的显示屏幕方向倾斜，使所述显示器的显示屏幕与水平面呈一倾斜角θ。本实施例中，倾斜角为已知定量。
请参阅图3，所述原始影像轮廓为矩形，所述轮廓坐标为所述矩形的四个顶点所在位置；且四个顶点顺时针方向分别为顶点A、顶点B、顶点C及顶点D，其中顶点C及顶点D的坐标为已知定量，所述原点O位于所述顶点C与顶点D的中间。具体的，所述显示屏幕显示出的影像为矩形，所述顶点C及顶点D为所述显示屏幕在水平面2上的边的两个端点的坐标，也就是矩形的两个夹角的顶点坐标，本实施例中，所述原点O坐标为(0，0，0)，所述顶点C坐标为(0，w，0)及顶点D(0，-w，0)其中，w为已知量，根据现实屏幕的大小而定。
步骤S4，根据所述原始影像在水平面上的两个点的坐标、高度h、长度l及倾斜角θ计算出在所述原始影像所的竖直平面内形成的预设影像的轮廓坐标。其中，所述预设影像轮廓坐标位于水平面的两个点与所述原始影像在水平面上的两个点坐标相同。
进一步的，所述倾斜后的显示屏幕所显示的画面的轮廓为矩形，所述轮廓坐标为所述矩形的四个顶点所在位置；且四个顶点顺时针方向分别为顶点F、顶点E、以及所述的顶点C及顶点D。具体的，所述顶点F坐标为(x1，-w1，z1)、顶点E坐标为(0，w，0)。其中，x1＝d×sinθ，z1＝d×cosθ。
所述预设影像轮廓为小于所述原始影像尺寸的矩形，所述预设影像的轮廓 坐标为预设影像形成的矩形的四个顶点所在位置。所述预设影像轮廓坐标四个顶点顺时针方向分别为顶点J(0，-y2，z2)、顶点K(0，y2，z2)、以及所述的顶点C及顶点D，函数y2满足以下条件：
Figure PCTCN2015088427-appb-000006
函数z2满足以下条件：
Figure PCTCN2015088427-appb-000007
其中，w是顶点C及顶点D在x轴的坐标值，所述x1为顶点F与顶点E在x轴上的坐标值，z1为顶点F与顶点E在z轴上的坐标值，那么，由图可知，由
Figure PCTCN2015088427-appb-000008
得到
Figure PCTCN2015088427-appb-000009
由
Figure PCTCN2015088427-appb-000010
得到
Figure PCTCN2015088427-appb-000011
请参阅图4，步骤S5，根据所述预设影像的轮廓坐标所包含在内的每一坐标点、所述的高度h、长度l及倾斜角θ计算出所述预设影像的轮廓坐标所包含在内的所有坐标点在所述显示屏幕上的投影坐标点。此步骤主要为了将倾斜的显示屏幕在竖直平面形成的画面做一个剪切，去除超出预设影像的轮廓的部分，避免影像产生变形。
进一步的，所述预设影像的轮廓坐标所包含在内的所有坐标点中的任意一个坐标点Y(0，y3，z3)在所述显示屏幕上的投影坐标点Z(x4，y4，z4)符合以下条件：
Figure PCTCN2015088427-appb-000012
其中，所述坐标点Y(0，y3，z3)为已知量。具体的，由
Figure PCTCN2015088427-appb-000013
Figure PCTCN2015088427-appb-000014
推导出
Figure PCTCN2015088427-appb-000015
那么所述z4为已知量，则得到
Figure PCTCN2015088427-appb-000016
即可求得x4的值，进而将x4、z4 作为为已知值即可以得到
Figure PCTCN2015088427-appb-000017
其中，观看点R与所述预设影像投影的轮廓坐标的连线为直线，所述预设影像的轮廓坐标在所述直线上。
步骤S6，将所述显示屏幕上的所述预设影像的轮廓坐标的所有投影坐标点转换成数字信号输入显示器的影像拉伸控制模块，使显示器形成所述预设影像并成像于所述竖直平面上。
综上所述，本发明的裸眼3D成像方法是先在正常放映影像的平面(竖直平面)计算出预设影像尺寸，将显示屏幕旋转倾斜角后根据预设影像尺寸投影至显示屏幕上的确定成像范围并转换成数字信号输入显示器控制模块，使显示屏幕的显示影像与所述预设影像尺寸重合，利用返透视原理，在观看点观看到的影像即不是倾斜后的变形影像也不是平面影像，而是3D效果的立体影像，无需佩戴3D眼睛，也不需要像贴膜裸眼式技术那样较高的成本，并可实现较高的影响效果，同时可以广泛应用到商场等宣传场地。
进一步的，在所述显示屏幕上确认的每一投影坐标点均对应所述显示器的一个像素单元。
进一步的，述观看点O与所述Y点及所述Z点在同一直线上。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (10)

  1. 一种裸眼3D成像系统，其中，所述系统包括水平面及与水平面垂直的竖直平面、显示器、固定显示器的支撑体，所述显示器的控制系统中设有影像拉伸控制模块，所述支撑体将显示器装于竖直平面上，并且所述显示器向竖直平面方向倾斜，所述显示器的显示屏幕与所述水平面呈一倾斜角设置，所述影像拉伸控制模块用于改变所述倾斜后的显示器的显示影像尺寸，以实现在竖直平面内形成立体影像。
  2. 如权利要求1所述的裸眼3D成像方法，其中，所述支撑体包括承载板及与承载板呈夹角设置的固定板，所述固定板固定于所述竖直平面且与所述竖直平面平行，所述承载板承载所述显示器，所述显示器的显示屏幕与所述承载板平行。
  3. 一种裸眼3D成像方法，其中，所述方法包括，
    确认显示器在竖直平面内显示影像的轮廓坐标，其中，所述影像为原始影像，所述原始影像在水平面上的两个点所成直线的中间点为原点O；
    确定观看点R到原始影像的坐标，坐标包括距离水平面的高度h与距离原点的长度l；
    将竖直平面上的显示器相对水平面向远离显示器的显示屏幕方向倾斜，使所述显示器的显示屏幕与水平面呈一倾斜角θ；
    根据所述原始影像在水平面上的两个点的坐标、高度h、长度l及倾斜角θ计算出在所述原始影像所的竖直平面内形成的预设影像的轮廓坐标；其中，所述预设影像轮廓坐标位于水平面的两个点与所述原始影像在水平面上的两个点坐标相同；
    根据所述预设影像的轮廓坐标所包含在内的每一坐标点、所述的高度h、长度l及倾斜角θ计算出所述预设影像的轮廓坐标所包含在内的所有坐标点在所述显示屏幕上的投影坐标点；
    其中，观看点R与所述预设影像投影的轮廓坐标的连线为直线，所述预设影像的轮廓坐标在所述直线上；
    将所述显示屏幕上的所述预设影像的轮廓坐标的所有投影坐标点转换成 数字信号输入显示器的影像拉伸控制模块，使显示器形成所述预设影像并成像于所述竖直平面上。
  4. 如权利要求3所述的裸眼3D成像方法，其中，在所述显示屏幕上确认的每一投影坐标点均对应所述显示器的一个像素单元。
  5. 如权利要求3所述的裸眼3D成像方法，其中，所述原始影像轮廓为矩形，所述轮廓坐标为所述矩形的四个顶点所在位置；且四个顶点顺时针方向分别为顶点A、顶点B、顶点C及顶点D，其中顶点C及顶点D的坐标为已知定量，所述原点O位于所述顶点C与顶点D的中间。
  6. 如权利要求5所述的裸眼3D成像方法，其中，所述倾斜后的显示屏幕所显示的画面的轮廓为矩形，所述轮廓坐标为所述矩形的四个顶点所在位置；且四个顶点顺时针方向分别为顶点F、顶点E、以及所述的顶点C及顶点D。
  7. 如权利要求6所述的裸眼3D成像方法，其中，所述预设影像轮廓为小于所述原始影像尺寸的矩形，所述预设影像的轮廓坐标为预设影像形成的矩形的四个顶点所在位置。
  8. 如权利要求7所述的裸眼3D成像方法，其中，所述预设影像轮廓坐标四个顶点顺时针方向分别为顶点J(0，-y2，z2)、顶点K(0，y2，z2)、以及所述的顶点C及顶点D，函数y2满足以下条件：
    Figure PCTCN2015088427-appb-100001
    函数z2满足以下条件：
    Figure PCTCN2015088427-appb-100002
    其中，w是顶点C及顶点D在x轴的坐标值，所述x1为顶点F与顶点E在x轴上的坐标值，z1为顶点F与顶点E在z轴上的坐标值。
  9. 如权利要求8所述的裸眼3D成像方法，其中，所述预设影像的轮廓坐标所包含在内的所有坐标点中的任意一个坐标点Y(0，y3，z3)在所述显示屏幕上的投影坐标点为z(x4，y4，z4)，函数x4符合以下条件：
    Figure PCTCN2015088427-appb-100003
    函数y4符合以下条件：
    Figure PCTCN2015088427-appb-100004
    函数z4符合以下条件：
    Figure PCTCN2015088427-appb-100005
    其中，所述坐标点Y(0，y3，z3)为已知量。
  10. 如权利要求7所述的裸眼3D成像方法，其中，所述观看点O与所述Y点及所述z点在同一直线上。
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