CN101631257A - Method and device for realizing three-dimensional playing of two-dimensional video code stream - Google Patents
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Abstract
The invention discloses a method and a device for realizing three-dimensional playing of two-dimensional video code stream. The main technical scheme is achieved as follows: processing each frame of images in the two-dimensional video code stream and displaying the processed images in a preset display mode; the processing procedure comprises the following steps: confirming depth information of a two-dimensional image, generating a depth image corresponding to the two-dimensional image according to the depth information; and generating a three-dimensional image corresponding to the two-dimensional image according to information of pixel points in the depth image and information of pixel points in the two-dimensional image. The technical scheme avoids complex pre-production procedure for realizing three-dimensional playing effect of video, and can improve the three-dimensional playing effect and save the storage space.
Description
Technical field
The present invention relates to the digital image processing techniques field, relate in particular to a kind of three-dimensional method and device of playing of two-dimensional video code stream of realizing.
Background technology
Along with reaching its maturity of digital multimedia technology, release the digital three-dimensional film in recent years in the world and be able to fast development, because the digital three-dimensional film brings good experience on the spot in person to the user, become the popular research object of present film industry, and regarded as the new growth point of film industry development by domestic and international expert.
The making of digital three-dimensional film at present mainly realizes based on the special processing of carrying out in photographing phase and projection stage, particularly, in photographing phase, utilizes two cameras emulation human eye visual angle and takes simultaneously; In the projection stage, utilize the projection synchronously of two projectors extremely with in the one side screen, and with polarized lenses or by grating being added in the display device surface to separate the different picture of right and left eyes.
When adopting above fabrication techniques three-dimensional film, synchronism to two cameras in shooting process has very strict requirement, it is inharmonious because even 1/tens seconds error also can allow right and left eyes produce on sense organ, therefore in the practical application, adopt above technology having bigger difficulty aspect the shooting true man outdoor scene anaglyph, aspect synchronism, be difficult to meet the demands, thereby influence the result of broadcast of three-dimensional film.In addition, because therefore three-dimensional film complex manufacturing process and manufacturing cost height also are not used widely at present, play this locality that only is applied in special places such as science and technology center.And because much bigger than the data volume of two-dimensional video code stream of the data volume of stereo video data, therefore be aspect storage or the encoding and decoding aspect all has high requirements, and the application of data volume is big broadcast when also giving network implementation, high definition etc. bring great challenge.
In sum, utilize prior art to make the process complexity of three-dimensional film, result of broadcast is poor, and because the high request of making aspect, the manufacture method of above-mentioned three-dimensional film is not widely used yet.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of three-dimensional method and device of playing of two-dimensional video code stream of realizing, adopt this technical scheme, avoided the manufacturing process in early stage of the complexity that prior art carries out for the three-dimensional result of broadcast that realizes video, and can improve three-dimensional result of broadcast, save memory space.
The embodiment of the invention is achieved through the following technical solutions:
According to an aspect of the embodiment of the invention, provide a kind of three-dimensional method of playing of two-dimensional video code stream that realizes.
The three-dimensional method of playing of realization two-dimensional video code stream according to the embodiment of the invention provides each two field picture in the two-dimensional video code stream is handled, and the image after will handling adopts default display mode to show; This processing procedure comprises:
Determine the depth information of two dimensional image, generate the depth image corresponding with described two dimensional image according to described depth information;
Information according to pixel in the information of pixel in the described depth image and the described two dimensional image generates the 3-D view corresponding with described two dimensional image.
According to another aspect of the embodiment of the invention, also provide a kind of three-dimensional device of playing of two-dimensional video code stream of realizing.
According to the three-dimensional device of playing of realization two-dimensional video code stream that the embodiment of the invention provides, this device is used for each frame two dimensional image of two-dimensional video code stream is handled, and the image after will handling shows by default display mode; Described device comprises:
The depth information determining unit is used for determining the depth information of two dimensional image;
The depth image generation unit, the depth information that is used for determining according to described depth information determining unit generates the depth image corresponding with described two dimensional image;
The 3-D view generation unit is used for the information according to pixel in the information of described depth image pixel and the described two dimensional image, generates the 3-D view corresponding with described two dimensional image.
Above-mentioned at least one technical scheme that provides by the embodiment of the invention, each two field picture in the two-dimensional video code stream is handled, promptly at first generate the depth image corresponding with this two dimensional image according to the depth information of the two dimensional image of determining, then according to the information of pixel in the information of pixel in this depth image and the two dimensional image, generate the 3-D view corresponding with two dimensional image, and the display mode demonstration that the 3-D view employing that generates is default, thereby can realize the three-dimensional broadcast of two-dimensional video code stream, compared with prior art, need not to carry out various visual angles takes, avoided the manufacturing process in early stage of the complexity of carrying out in order to reach three-dimensional result of broadcast, and improved three-dimensional result of broadcast, saved memory space.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with the embodiment of the invention one, is not construed as limiting the invention.In the accompanying drawings:
The flow chart one of Fig. 1 in the embodiment of the invention two dimensional image being handled;
Fig. 2 is the flow chart that generates depth image in the embodiment of the invention;
Fig. 3 is the schematic diagram of two dimensional image in the embodiment of the invention;
Fig. 4 is a depth image schematic diagram corresponding with two dimensional image shown in Figure 2 in the embodiment of the invention;
The flowchart 2 of Fig. 5 in the embodiment of the invention two dimensional image being handled;
Fig. 6 realizes the three-dimensional device schematic diagram of playing of two-dimensional video code stream in the embodiment of the invention;
Fig. 7 realizes the three-dimensional device schematic diagram of playing two of two-dimensional video code stream in the embodiment of the invention.
Embodiment
In order to provide the manufacturing process of simplifying three-dimensional film and the implementation that improves result of broadcast, the embodiment of the invention provides a kind of three-dimensional method and device of playing of two-dimensional video code stream of realizing, below in conjunction with Figure of description the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein only is used for description and interpretation the present invention, and is not used in qualification the present invention.And under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
According to the embodiment of the invention, a kind of three-dimensional method of playing of two-dimensional video code stream that realizes at first is provided, promptly each frame two dimensional image of two-dimensional video code stream is handled, specifically as shown in Figure 1, the processing procedure of two dimensional image is comprised:
The depth information of the two dimensional image that step 102, basis are determined generates the depth image corresponding with this two dimensional image.
According to above-mentioned flow process each two field picture in the two-dimensional video code stream is converted to 3-D view before broadcast, and the 3-D view that obtains is shown by the display mode of setting, can realize that the solid of two-dimensional video code stream is play.
Below the detailed implementation procedure of each step in the above-mentioned flow process is described:
According to the position relation of different objects in the two dimensional image, determine this difference object and beholder's relative distance respectively, and the described range information that will determine is as the depth information of this two dimensional image.
The depth information of determining according to step 101 is used for the relative beholder's of presentation video object relative distance, is conveniently to understand, and definite process of depth information is exemplified below:
Example 1:
The position of two objects is closed and is in the image: the part of first object is blocked by second object, then can be according to this position relation, determine that first object is far away from beholder's relative distance, second object is nearer from beholder's relative distance, according to this principle, can determine that different objects are with respect to beholder's relative distance in the image.
Example 2:
The position of two objects is closed and is in the image: two objects do not block mutually in the image, then according to this position relation, can be further according to the size of two objects in image and the definite relative distance of proportionate relationship of actual size from the beholder, do not block mutually as a people and a house, big or small identical in image of the size of people in image and house, then obviously the people is nearer from beholder's relative distance, the house is far away from beholder's relative distance, according to this principle, can determine that different objects are with respect to beholder's relative distance in the image.
In the practical application, the position of different objects relation comprises various ways in the image, for example, two objects are in parallel position and the size of two objects in image is identical with the ratio of actual size, can determine in view of the above that then these two objects are identical from beholder's relative distance, enumerate no longer one by one herein.
In the step 102, the process according to the depth information generation of the two dimensional image of the determining depth image corresponding with this two dimensional image as described in Figure 2, comprises the steps:
Each gray values of pixel points that step 202, utilization are determined is replaced the pixel value of corresponding pixel points in two dimensional image, generates the depth image corresponding with this two dimensional image.
The specific implementation process of above-mentioned steps 201 is as follows:
The process that generates depth image is about to that the pixel in the diverse location scene adopts different gray values to represent in the two dimensional image, for example, adopt 256 color shade graphical representations, each pixel in the image is represented with a pixel value between the 0-255, wherein, pixel value is " 0 " expression black, and pixel value is " 255 " expression white, represents with the pixel value between " 0 " and " 255 " between the grey between the black and white.According to this principle, more little with pixel corresponding gray in beholder's the relative distance scene far away more, just color is dark more, and big more with pixel corresponding gray in the near more scene of beholder's relative distance, just color is shallow more.
In order to represent the effect of the depth image that generates according to the embodiment of the invention more intuitively, utilize two dimensional image to generate the detailed process of depth image in conjunction with Fig. 3 and Fig. 4 explanation:
As shown in Figure 3, be the two dimensional image in the two-dimensional video code stream, position relation according to staff object in the image and number of people object, be that people in the image lifts thumb before body, the relative distance that can determine staff and beholder is nearer, the number of people and beholder's relative distance is far away, then staff corresponding color in depth image is corresponding more of light color in depth image than the number of people, each gray values of pixel points of promptly forming staff is bigger than each gray values of pixel points of forming the number of people, the depth image that generates as shown in Figure 4, generate depth image by this mode, when showing stereo-picture, staff in the image will float over the front of the number of people in the image, and the staff and the number of people be or not same plane, thereby reaches stereoeffect.
In the above-mentioned steps 103, the process that generates the 3-D view corresponding with two dimensional image just is converted to two dimensional image the process of 3-D view, promptly determine each pixel in the two dimensional image at the three-dimensional coordinate (X, Y, Z) of three dimensions correspondence and each pixel in the three dimensions corresponding pixel value, detailed process comprises:
According to gray values of pixel points in the depth image, and the plane coordinates and the pixel value of pixel in the two dimensional image corresponding with this depth image, the 3-D view corresponding generated with two dimensional image;
Wherein:
The depth coordinate of each pixel in the 3-D view (being the Z coordinate) is the gray value of this pixel in depth image, the principle of this step institute foundation comprises: when generating depth image, gray values of pixel points is to determine from beholder's relative distance according to this pixel, and in 3-D view, the Z coordinate is promptly represented object distance observer's distance, therefore, with the depth coordinate of each gray values of pixel points in the depth image as each pixel correspondence in 3-D view, i.e. Z coordinate;
The plane coordinates of each pixel in the 3-D view (being X, Y coordinate) is the plane coordinates (be X, Y coordinate) of this pixel in two dimensional image, and the pixel value of each pixel is the pixel value of this pixel in two dimensional image in the 3-D view.
According to above process, just can determine three-dimensional coordinate (X, Y, Z) and each pixel corresponding pixel value of each pixel in the 3-D view, thereby can obtain 3-D view.
According to further embodiment of this invention,, as shown in Figure 5, the processing procedure of two dimensional image is comprised in order to improve the three-dimensional result of broadcast of video:
Step 501, determine the depth information of two dimensional image.
The depth information of the two dimensional image that step 502, basis are determined generates the depth image corresponding with this two dimensional image.
Step 503, according to the information of pixel in the information of pixel in the depth image that generates and the corresponding two dimensional image, generate the 3-D view corresponding with two dimensional image.
Step 504, the 3-D view that generates is carried out various visual angles play up, wherein, the visual angle number is definite according to default display mode.
According to above-mentioned flow process each two field picture in the two-dimensional video code stream is converted to 3-D view before broadcast, and 3-D view is carried out various visual angles play up, the 3-D view that obtains is shown by the display mode of setting, thereby make the beholder can experience the stereos copic viewing effect in different angles.
In the above-mentioned flow process, the concrete processing procedure of step 501～step 503 is identical with the concrete processing procedure of above-mentioned steps 101～step 103, no longer is repeated in this description herein, below the processing procedure of step 504 is described in detail:
In the step 501, visual angle number when the 3-D view that generates is carried out playing up from various visual angles, can determine according to the display mode of default 3-D view, for example, if default display mode is to show three-dimensional video-frequency by three-dimensional display, then generally adopt 8 visual angles to play up, because 8 visual angles can make the visible angle of display become big, promptly 4 different angles, play up 4 groups of left and right sides visual angle figure respectively, if the position that the beholder takes back before display is watched, that then see is exactly that group visual angle, the left and right sides figure that takes back, thereby make the beholder in the different angles of display, can watch the picture of different angles; If default display mode is for showing three-dimensional video-frequency by polaroid glasses or filter goggle, need play up 2 visual angles for then general, these at 2 visual angles are that one of LOOK LEFT is LOOK RIGHT, allow the LOOK LEFT figure that plays up advance left eye, the LOOK RIGHT figure that plays up advances right eye, thereby makes the beholder experience the picture of different angles.
For the display mode of other default stereo-picture, can determine the visual angle number according to the characteristics of display mode, do not enumerate one by one herein.
After the visual angle number of determining to play up, can adopt 3D MAX technology to carry out various visual angles and play up, promptly simulate the picture of different angles, thereby obtain the planogram information of different visual angles from different visual angles.
After according to the embodiment of the invention two dimensional image being converted to 3-D view, show 3-D view after handling according to default display mode, thereby the solid that can realize the two-dimensional video code stream is play.Wherein, default display mode can have multiple, for example, can show by polaroid glasses or filter goggle, perhaps shows by three-dimensional display.The process that adopts default display mode to show is about to vision signal separates, and makes visual angle, left and right sides figure arrive beholder's right and left eyes respectively by the processing of different display modes, makes human eye can experience real three-dimensional stereo effect.
Corresponding with above-mentioned flow process, the embodiment of the invention also provides a kind of three-dimensional device of playing of two-dimensional video code stream of realizing, this device is used for each frame two dimensional image of two-dimensional video code stream is handled, and the image after will handling shows by default display mode, specifically as shown in Figure 6, this device comprises:
Depth information determining unit 601, depth image generation unit 602 and 3-D view generation unit 603; Wherein:
Depth information determining unit 601 is used for determining the depth information of two dimensional image;
Depth image generation unit 602 is used for generating the depth image corresponding with two dimensional image according to the depth information that depth information determining unit 601 is determined;
3-D view generation unit 603 is used for the information of pixel in the information of the depth image pixel that generates according to depth image generation unit 602 and the corresponding two dimensional image, generates the 3-D view corresponding with two dimensional image.
Among the embodiment, above-mentioned depth information determining unit 601 comprises when determining the depth information of two dimensional image:
According to the position relation of different objects in the two dimensional image, determine different objects and beholder's relative distance respectively, and with the depth information of definite relative distance information as this two dimensional image.
Among the embodiment, above-mentioned depth image generation unit 602 comprises:
The gray value determination module, be used for determining each gray values of pixel points of different objects according to the depth information that depth information determining unit 601 is determined, wherein, object and beholder's relative distance is more little in the image, and then gray values of pixel points is big more in this object of Que Dinging;
The depth image generation module, each gray values of pixel points that is used for utilizing the gray value determination module to determine is replaced the pixel value of two dimensional image corresponding pixel points, generates the depth image corresponding with this two dimensional image.
Among the embodiment, above-mentioned 3-D view generation unit 603 comprises when generating the 3-D view corresponding with two dimensional image:
Plane coordinates and pixel value according to pixel in gray values of pixel points and the two dimensional image in the depth image of depth image generation unit 602 generations generate the 3-D view corresponding with two dimensional image;
Wherein, the plane coordinates of each pixel is the plane coordinates of each pixel in two dimensional image in this 3-D view, the depth coordinate of each pixel is the gray value of each pixel in depth image in this 3-D view, and the pixel value of each pixel is the pixel value of each pixel in two dimensional image in this 3-D view.
Among the embodiment, as shown in Figure 7, said apparatus also comprises:
Each unit in the described device of above embodiment or/and the implementation procedure correspondence of corresponding function in the specific implementation process and method flow process of function that each module realizes no longer be repeated in this description herein.
Above-mentioned at least one technical scheme that provides by the embodiment of the invention, each two field picture in the two-dimensional video code stream is handled, promptly at first generate the depth image corresponding with this two dimensional image according to the depth information of the two dimensional image of determining, then according to the information of pixel in the information of pixel in this depth image and the two dimensional image, generate the 3-D view corresponding with two dimensional image, and the display mode demonstration that the 3-D view employing that generates is default, thereby can realize the three-dimensional broadcast of two-dimensional video code stream, compare with traditional three-dimensional video-frequency manufacture method, have following advantage:
1, need not to carry out various visual angles and take, can convert original two-dimensional video code stream to three-dimensional code stream and play, TV signal etc. directly can also be carried out solid and play, saved three-dimensional video-frequency manufacturing process in earlier stage;
2, carry out the three-dimensional code stream of playing in the embodiment of the invention and can be the two-dimensional video code stream, therefore saved the storage spending.
3, have wide range of applications, can be applied to local the broadcast, original two-dimension code is handled according to the method that the embodiment of the invention provides, promptly can obtain three-dimensional result of broadcast; Can also be applied to fields such as video monitoring, online game, virtual reality, bring stronger vision shock to the user, and more real visual effect.
4, watch more flexible, according to the embodiment of the invention, user's inclination of can following one's inclinations, same code stream is realized two kinds of viewing effects, the method that does not adopt the embodiment of the invention to provide is carried out the broadcast of two-dimensional video code stream can obtain the common plane effect, and the method for using the embodiment of the invention to provide is carried out the broadcast of two-dimensional video code stream then can obtain stereoeffect.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1, a kind of three-dimensional method of playing of two-dimensional video code stream that realizes is characterized in that, each two field picture in the described two-dimensional video code stream is handled, and the image after will handling adopts default display mode to show; Described processing procedure comprises:
Determine the depth information of two dimensional image, generate the depth image corresponding with described two dimensional image according to described depth information;
Information according to pixel in the information of pixel in the described depth image and the described two dimensional image generates the 3-D view corresponding with described two dimensional image.
2, the method for claim 1 is characterized in that, the depth information of described definite two dimensional image comprises:
According to the position relation of different objects in the described two dimensional image, determine described different objects and beholder's relative distance respectively, and the described range information that will determine is as the depth information of described two dimensional image.
3, method as claimed in claim 2 is characterized in that, and is described according to the described depth information generation depth image corresponding with described two dimensional image, comprising:
Determine each gray values of pixel points in the described different object according to described depth information, wherein, described object and beholder's relative distance is more little, and then gray values of pixel points is big more in the described object of Que Dinging;
Utilize described each gray values of pixel points of determining to replace the pixel value of corresponding pixel points in the described two dimensional image, generate the depth image corresponding with described two dimensional image.
4, the method for claim 1 is characterized in that, described according to pixel in the described depth image information and described two dimensional image in the information of pixel, generate the 3-D view corresponding with described two dimensional image, comprising:
According to gray values of pixel points in the described depth image, and the plane coordinates and the pixel value of pixel in the described two dimensional image, the 3-D view corresponding generated with described two dimensional image;
Wherein, the depth coordinate of each pixel is the gray value of described pixel in described depth image in the described 3-D view, the plane coordinates of each pixel is the plane coordinates of described pixel in described two dimensional image in the described 3-D view, and the pixel value of each pixel is the pixel value of described pixel in described two dimensional image in the described 3-D view.
5, the method for claim 1 is characterized in that, described processing procedure also comprises:
The 3-D view that generates is carried out various visual angles play up, described visual angle number is determined according to described default display mode.
6, a kind of three-dimensional device of playing of two-dimensional video code stream of realizing it is characterized in that described device is used for each frame two dimensional image of two-dimensional video code stream is handled, and the image after will handling shows by default display mode; Described device comprises:
The depth information determining unit is used for determining the depth information of two dimensional image;
The depth image generation unit, the depth information that is used for determining according to described depth information determining unit generates the depth image corresponding with described two dimensional image;
The 3-D view generation unit is used for the information according to pixel in the information of described depth image pixel and the described two dimensional image, generates the 3-D view corresponding with described two dimensional image.
7, device as claimed in claim 6 is characterized in that, described depth information determining unit comprises when determining the depth information of two dimensional image:
According to the position relation of different objects in the described two dimensional image, determine described different objects and beholder's relative distance respectively, and the described range information that will determine is as the depth information of described two dimensional image.
8, device as claimed in claim 7 is characterized in that, described depth image generation unit comprises:
The gray value determination module is used for determining described each gray values of pixel points of different object according to described depth information that wherein, described object and beholder's relative distance is more little, and then gray values of pixel points is big more in the described object of Que Dinging;
The depth image generation module, each gray values of pixel points that is used for utilizing described gray value determination module to determine is replaced the pixel value of described two dimensional image corresponding pixel points, generates the depth image corresponding with described two dimensional image.
9, device as claimed in claim 6 is characterized in that, described 3-D view generation unit comprises when generating the 3-D view corresponding with described two dimensional image:
According to the plane coordinates and the pixel value of pixel in gray values of pixel points in the described depth image and the described two dimensional image, generate the 3-D view corresponding with described two dimensional image;
Wherein, the plane coordinates of each pixel is the plane coordinates of described pixel in described two dimensional image in the described 3-D view, the depth coordinate of each pixel is the gray value of described pixel in described depth image in the described 3-D view, and the pixel value of each pixel is the pixel value of described pixel in described two dimensional image in the described 3-D view.
10, device as claimed in claim 6 is characterized in that, also comprises:
Rendering unit is used for that the 3-D view that described 3-D view generation unit generates is carried out various visual angles and plays up, and described visual angle number is determined according to described default display mode.
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