CN110475151A - The film playback method of digital film projector system - Google Patents
The film playback method of digital film projector system Download PDFInfo
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- CN110475151A CN110475151A CN201910857255.2A CN201910857255A CN110475151A CN 110475151 A CN110475151 A CN 110475151A CN 201910857255 A CN201910857255 A CN 201910857255A CN 110475151 A CN110475151 A CN 110475151A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
Abstract
The invention discloses a kind of film playback methods of digital film projector system, comprising: obtains digital cinema master to be played and extracts each frame mother matrix image in digital cinema master；All pixels point in mother matrix image is divided into multiple pixel groups, wherein each pixel group is equal comprising quantity and arranges identical pixel；At least one pixel in each pixel group of mother matrix image is extracted by setting sequence, and the pixel obtained every time is formed into a subgraph；Digital movie packet is formed based on subgraph, and is based on digital film projector system plays digital movie packet.The present invention also provides a kind of film playback methods of digital film projector system, based on the film image in digital movie packet, to form subgraph and carry out film broadcasting, this method can make the d-cinema projectors of low resolution be projected out the image of higher resolution, improve viewing effect.
Description
Technical field
The present invention relates to digital cinema technology fields, and in particular to a kind of film broadcasting side of digital film projector system
Method.
Background technique
With the continuous promotion of quality of life and living standard, watching film becomes a kind of important consumer entertainment of consumer
Trend, requirement of the consumer also to movie theatre image quality is higher and higher, and the image quality that the technique for taking of film can make at present reaches 4K
Or 8K resolution ratio, however the d-cinema projectors resolution ratio configuration of some regional cinemas is lower, is unable to satisfy this compared with high score
The broadcasting of resolution, so that originally relatively sharp film thickens when playing, influences viewing effect.
Therefore, this field needs a kind of new film playback method to solve the above problems.
Summary of the invention
In order to solve the above problem of the prior art, in order to solve how d-cinema projectors resolution ratio configuration compared with
It is low and in the higher situation of film resolution ratio, promoted film play image quality the technical issues of, an aspect of of the present present invention provides one
The film playback method of kind digital film projector system, which comprises
It obtains digital cinema master to be played and extracts each frame mother matrix image in the digital cinema master；
All pixels point in the mother matrix image is divided into multiple pixel groups, wherein each pixel group includes number
Measure the equal and identical pixel of arrangement；
Pixel described at least one of described pixel group of each of described mother matrix image is extracted by setting sequence, and will
The pixel obtained every time forms a subgraph；
Digital movie packet is formed based on the subgraph, and based on the electricity of number described in the digital film projector system plays
Shadow packet.
Further, it " is extracted in the mother matrix image described at least one of each described pixel group by setting sequence
Pixel, and the pixel obtained every time is formed into a subgraph " specifically include:
At least one of each described pixel group in the mother matrix image is extracted by sequence from bottom to top, from left to right
The pixel；
The pixel obtained every time is formed into a subgraph.
Further, the pixel group includes 4 pixels of 2 rows 2 column, mother matrix image described in each frame corresponding 4
A subgraph " extracts pixel described at least one of each described pixel group in the mother matrix image by setting sequence
Point, and the pixel obtained every time is formed into a subgraph " specifically include:
Method shown in as the following formula obtains the corresponding first frame subgraph of the mother matrix image:
H(m,n)=P(2m,2n-1)
Wherein, H(m,n)Indicate the pixel of m row in the first frame subgraph, the n-th column, P(2m,2n-1)Indicate the mother
The pixel of 2m row, 2n-1 column in domain picture, the m, n are positive integer；
Method shown in as the following formula obtains the corresponding second frame subgraph of the mother matrix image:
J(m,n)=P(2m-1,2n-1)
Wherein, J(m,n)Indicate the pixel of m row in the second frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding third frame subgraph of the mother matrix image:
K(m,n)=P(2m-1,2n)
Wherein, K(m,n)Indicate the pixel of m row in the third frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding 4th frame subgraph of the mother matrix image:
L(m,n)=P(2m,2n)
Wherein, L(m,n)Indicate the pixel of m row in the 4th frame subgraph, the n-th column.
Further, " digital movie packet is formed based on the subgraph, and is based on the digital film projector system plays
The digital movie packet " specifically includes:
By the sequence of the corresponding mother matrix image of the subgraph and the acquisition sequence of the subgraph, to the subgraph
It is ranked up and forms digital movie packet；
Based on the subgraph number that the mother matrix image obtains, the broadcasting multiplying power of the digital film projector system is set；
The digital movie packet is played based on the digital film projector system and by the multiplying power of the setting.
Further, " based on the subgraph number that the mother matrix image obtains, the digital film projector system is set
Play multiplying power " it specifically includes:
The broadcasting multiplying power of the digital film projector system is equal to the image number obtained based on the mother matrix image.
Further, the digital film projector system include sequentially connected media server, d-cinema projectors,
Resolution extension device and projection lens；
Wherein the media server sends synchronization signal to the resolution extension device, makes the digital film projector system
The polarization sequence synchronization of picture frame and the resolution extension device that system plays.
Another aspect of the present invention additionally provides a kind of film playback method of digital film projector system of, the method
Include:
Digital movie packet to be played is obtained, and extracts each frame film image in the digital movie packet；
All pixels point in the film image is divided into multiple pixel groups, wherein each pixel group includes number
Measure the equal and identical pixel of arrangement；
Pixel described at least one of described pixel group of each of described film image is extracted by setting sequence, and will
The pixel obtained every time forms a subgraph；
The acquisition sequence of sequence and the subgraph based on the corresponding film image of the subgraph, and it is based on institute
Digital film projector system is stated to be shown.
Further, it " is extracted in the film image described at least one of each described pixel group by setting sequence
Pixel, and the pixel obtained every time is formed into a subgraph " specifically include:
At least one of each described pixel group in the film image is extracted by sequence from bottom to top, from left to right
The pixel；
The pixel obtained every time is formed into a subgraph.
Further, the pixel group includes 4 pixels of 2 rows 2 column, film image described in each frame corresponding 4
A subgraph " extracts pixel described at least one of each described pixel group in the film image by setting sequence
Point, and the pixel obtained every time is formed into a subgraph " specifically include:
Method shown in as the following formula obtains the corresponding first frame subgraph of the film image:
H(m,n)=I(2m,2n-1)
Wherein, H(m,n)Indicate the pixel of m row in the first frame subgraph, the n-th column, I(2m,2n-1)Indicate the electricity
The pixel of 2m row, 2n-1 column in shadow image, the m, n are positive integer；
Method shown in as the following formula obtains the corresponding second frame subgraph of the film image:
J(m,n)=I(2m-1,2n-1)
Wherein, J(m,n)Indicate the pixel of m row in the second frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding third frame subgraph of the film image:
K(m,n)=I(2m-1,2n)
Wherein, K(m,n)Indicate the pixel of m row in the third frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding 4th frame subgraph of the mother matrix image:
L(m,n)=I(2m,2n)
Wherein, L(m,n)Indicate the pixel of m row in the 4th frame subgraph, the n-th column.
Further, the digital film projector system include sequentially connected media server, d-cinema projectors,
Resolution extension device and projection lens, the media server include that digital movie packet obtains module and image processing module,
The digital movie packet obtains module, is configured to obtain digital movie packet to be played, and extracts the number electricity
Each frame film image in shadow packet；
Described image processing module is configured to all pixels point in the film image being divided into multiple pixel groups,
Wherein the pixel group is equal comprising quantity and arranges the identical pixel；The film image is extracted by setting sequence
Pixel described at least one of each described pixel group, and the pixel obtained every time is formed into a subgraph；
The d-cinema projectors, be configured to the corresponding film image of the subgraph sequence and the son
The acquisition sequential lines of image are shown.
The present invention has the advantages that
The film playback method of digital film projector system provided by the invention can not upgrade or change digital movie
Under the premise of projector image processing hardware itself, realizes and be projected out more high score using the d-cinema projectors of low resolution
The image of resolution greatly reduces cost of implementation while significant increase viewing effect.
Detailed description of the invention
Fig. 1 is the main flow signal of the film playback method of one of embodiment of the present invention digital film projector system
Figure；
Fig. 2 is that one of embodiment of the present invention is based on subgraph composition digital movie packet and based on digital film projector system
System plays the main flow schematic diagram of digital movie packet；
Fig. 3 is the primary structure schematic diagram of one of embodiment of the present invention digital film projector system；
Fig. 4 is the main flow signal of the film playback method of the digital film projector system of another embodiment of the present invention
Figure；
Fig. 5 is the primary structure schematic diagram of the digital film projector system of another embodiment of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
Refering to attached drawing 1, Fig. 1 illustrates a kind of main stream of the film playback method of digital film projector system
Journey, as shown in Figure 1, the film playback method of digital film projector system provided in an embodiment of the present invention may include following step
It is rapid:
Step S1: obtaining digital cinema master to be played and extracts each frame mother matrix image in digital cinema master.
Specifically, after obtaining digital cinema master to be played, each frame image of the digital cinema master is extracted, the figure is defined
Picture is mother matrix image, which can be 4K resolution ratio or 8K resolution ratio.
Step S2: being divided into multiple pixel groups for all pixels point in mother matrix image, wherein each pixel group includes number
Measure the equal and identical pixel of arrangement.Specifically, the pixel in mother matrix image is grouped, each pixel group includes number
Measure the equal and identical pixel of arrangement.For example, 4 pixels or each pixel group comprising 2 rows 2 column in each pixel group
In comprising 1 row 2 column 2 pixels or each pixel group in comprising 2 rows 1 column 2 pixels, wherein each pixel
It is pertaining only to a pixel group, i.e., the not juxtaposition of the pixel in each pixel group.It should be noted that including pixel in pixel group
The quantity of point and the arrangement mode of pixel can be adjusted according to practical application scene, here with no restriction.
Step S3: at least one pixel in each pixel group of mother matrix image is extracted by setting sequence, and will be each
The pixel of acquisition forms a subgraph.Specifically, it can be extracted by sequence from bottom to top, from left to right every in mother matrix image
The pixel obtained every time is formed a subgraph by least one pixel in a pixel group.It i.e. will be in digital cinema master
Each frame mother matrix image all resolve into multiple subgraphs, the method decomposed can be by all pixels point in mother matrix image
It is divided into after multiple pixel groups, in each pixel group, is extracted by sequence from bottom to top, from left to right every in mother matrix image
At least one pixel in a pixel group.It should be noted that being also possible in the step by from top to down, from left to right
Sequence extracts at least one pixel in mother matrix image in each pixel group, is also possible to by turning left from top to down, from the right side
Sequence extracts at least one pixel in mother matrix image in each pixel group, and the sequence of extraction of specific pixel can be according to number
The polarization direction of word film projection system intermediate-resolution expander adjusts accordingly.
More specifically, 4 pixels comprising 2 rows 2 column in a pixel group, each frame mother matrix image correspondence resolve into
4 subgraphs extract 1 pixel in the lower left corner in each pixel group in mother matrix image for the first time, and first time are extracted
All pixels point form the corresponding first frame subgraph of the mother matrix image；In second of extraction mother matrix image in each pixel group
1 point in the upper left corner, and second of extracted all pixels point is formed into the corresponding second frame subgraph of the mother matrix image；The
1 point in the upper right corner in each pixel group in mother matrix image is extracted three times, and will the extracted all pixels point composition of third time
The corresponding third frame subgraph of the mother matrix image；Extract 1 point in the lower right corner in each pixel group in mother matrix image for 4th time, and
4th extracted all pixels point is formed into the corresponding 4th frame subgraph of the mother matrix image.
More specifically, the corresponding first frame subgraph of mother matrix image is obtained by method shown in formula (1):
H(m,n)=P(2m,2n-1) (1)
Wherein, H(m,n)Indicate the pixel of m row in first frame subgraph, the n-th column, P(2m,2n-1)It indicates in mother matrix image
The pixel of 2m row, 2n-1 column, the m, n are positive integer；
The corresponding second frame subgraph of mother matrix image is obtained by method shown in formula (2):
J(m,n)=P(2m-1,2n-1) (2)
Wherein, J(m,n)Indicate the pixel of m row in the second frame subgraph, the n-th column；
The corresponding third frame subgraph of the mother matrix image is obtained by method shown in formula (3):
K(m,n)=P(2m-1,2n) (3)
Wherein, K(m,n)Indicate the pixel of m row in third frame subgraph, the n-th column；
The corresponding 4th frame subgraph of the mother matrix image is obtained by method shown in formula (4):
L(m,n)=P(2m,2n) (4)
Wherein, L(m,n)Indicate the pixel of m row in the 4th frame subgraph, the n-th column.
Step S4: digital movie packet is formed based on subgraph, and is based on digital film projector system plays digital movie packet.
Referring to Fig.2, Fig. 2, which is illustrated, forms digital movie packet based on subgraph and based on digital film projector system
The main flow for playing digital movie packet, as shown in Fig. 2, it may include steps of:
Step S41: by the sequence of the corresponding mother matrix image of subgraph and the acquisition sequence of subgraph, subgraph is carried out
It sorts and forms digital movie packet.For example, it is sequentially respectively A, B, C that digital cinema master, which includes 3 frame mother matrix images, each frame is female
Domain picture resolves into 4 frame subgraphs, then the subgraph that A is obtained in order is respectively A1, A2, A3, A4；Similarly, B is obtained in order
Subgraph be respectively B1, B2, B3, B4；The subgraph that C is obtained in order is respectively C1, C2, C3, C4.Then in digital movie packet
Subgraph is ordered as A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, also plays in this order when playing film.
Step S42: the subgraph number obtained based on mother matrix image sets the broadcasting multiplying power of digital film projector system.
Specifically, the broadcasting multiplying power of digital film projector system can be equal to the image number obtained based on mother matrix image.
Step S43: digital movie packet is played based on digital film projector system and by the multiplying power of setting.
Refering to attached drawing 3, Fig. 3 illustrates the primary structure of digital film projector system, as shown in figure 3, number electricity
Shadow projection system includes sequentially connected media server 51, d-cinema projectors 52, resolution extension device 53 and projection
Camera lens 54；Wherein media server 51 sends synchronization signal to resolution extension device 53, makes digital film projector system plays
The polarization sequence synchronization of picture frame and resolution extension device 53.Due to the present invention be by mother matrix picture breakdown at multiple word images into
Row plays, so the number for the subgraph that its rate played can be decomposed according to a mother matrix image adjusts playback rate, from
And be also required to media server 51 and send synchronization signal to resolution extension device 53, make the image of digital film projector system plays
The polarization sequence synchronization of frame and resolution extension device 53.
Refering to attached drawing 4, Fig. 4 illustrates the film playback method of the digital film projector system of another embodiment
Main flow, as shown in figure 4, the film playback method of digital film projector system provided in this embodiment, comprising:
Step S101: obtaining digital movie packet to be played, and extracts each frame film image in digital movie packet.Tool
Body, the present embodiment is the image procossing to digital movie packet, after obtaining digital movie packet to be played, extracts number electricity
Each frame film image in shadow packet.
Step S102: all pixels point in film image is divided into multiple pixel groups, wherein each pixel group includes
Quantity is equal and arranges identical pixel.The step can refer to step S2, and which is not described herein again.
Step S103: at least one pixel in each pixel group of film image is extracted by setting sequence, and will be every
The pixel of secondary acquisition forms a subgraph.Specifically, it is extracted by sequence from bottom to top, from left to right each in film image
At least one pixel in pixel group；The pixel obtained every time is formed into a subgraph.More specifically, pixel group includes
4 pixels of 2 rows 2 column, corresponding 4 subgraphs of each frame film image, obtain film by method shown in formula (5)
The corresponding first frame subgraph of image:
H(m,n)=I(2m,2n-1) (5)
Wherein, H(m,n)Indicate the pixel of m row in first frame subgraph, the n-th column, I(2m,2n-1)It indicates in film image
The pixel of 2m row, 2n-1 column, the m, n are positive integer；
The corresponding second frame subgraph of film image is obtained by method shown in formula (6):
J(m,n)=I(2m-1,2n-1) (6)
Wherein, J(m,n)Indicate the pixel of m row in the second frame subgraph, the n-th column；
The corresponding third frame subgraph of film image is obtained by method shown in formula (7):
K(m,n)=I(2m-1,2n) (7)
Wherein, K(m,n)Indicate the pixel of m row in third frame subgraph, the n-th column；
The corresponding 4th frame subgraph of mother matrix image is obtained by method shown in formula (8):
L(m,n)=I(2m,2n) (8)
Wherein, L(m,n)Indicate the pixel of m row in the 4th frame subgraph, the n-th column.
The acquisition sequence of sequence and subgraph of the step S104 based on the corresponding film image of subgraph, and based on number
Word film projection system is shown.Specifically, the playing sequence of subgraph can refer to step S41, and which is not described herein again
Refering to attached drawing 5, Fig. 5 illustrates the primary structure of digital film projector system, as shown in figure 5, the system
Including sequentially connected media server 51, d-cinema projectors 52, resolution extension device 53 and projection lens 54, media
Server 51 includes that digital movie packet obtains module 511 and image processing module 512,
Digital movie packet obtains module 511, is configured to obtain digital movie packet to be played, and extract in digital movie packet
Each frame film image；
Image processing module 512 is configured to all pixels point in film image being divided into multiple pixel groups, wherein often
A pixel group is equal comprising quantity and arranges identical pixel；In each pixel group for extracting film image by setting sequence
At least one pixel, and the pixel obtained every time is formed into a subgraph；
D-cinema projectors 54 are configured to the sequence of the corresponding film image of subgraph and the acquisition of subgraph
Sequential lines projection.
Wherein, media server 51 also sends synchronization signal to resolution extension device 53, broadcasts digital film projector system
The polarization sequence synchronization of the picture frame and resolution extension device 53 put.
Those skilled in the art should be able to recognize that, side described in conjunction with the examples disclosed in the embodiments of the present disclosure
Method step, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate electronic hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is executed actually with electronic hardware or software mode, specific application and design constraint depending on technical solution.
Those skilled in the art can use different methods to achieve the described function each specific application, but this reality
Now it should not be considered as beyond the scope of the present invention
Term " first ", " second " etc. are to be used to distinguish similar objects, rather than be used to describe or indicate specific suitable
Sequence or precedence.
Term " includes " or any other like term are intended to cover non-exclusive inclusion, so that including a system
Process, method, article or equipment/device of column element not only includes those elements, but also including being not explicitly listed
Other elements, or further include the intrinsic element of these process, method, article or equipment/devices.
The above is presently preferred embodiments of the present invention and its technical principle used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simple replacement etc. is obvious changes, all fall within the protection scope of the present invention.
Claims (10)
1. a kind of film playback method of digital film projector system, which is characterized in that the described method includes:
It obtains digital cinema master to be played and extracts each frame mother matrix image in the digital cinema master；
All pixels point in the mother matrix image is divided into multiple pixel groups, wherein each pixel group includes quantity phase
Deng and arrange the identical pixel；
Pixel described at least one of described pixel group of each of described mother matrix image is extracted by setting sequence, and will be each
The pixel obtained forms a subgraph；
Digital movie packet is formed based on the subgraph, and based on digital movie described in the digital film projector system plays
Packet.
2. the film playback method of digital film projector system as described in claim 1, which is characterized in that " press setting sequence
Extract pixel described at least one of each described pixel group in the mother matrix image, and the pixel that will be obtained every time
One subgraph of point composition " specifically includes:
It is extracted in the mother matrix image described at least one of each described pixel group by sequence from bottom to top, from left to right
Pixel；
The pixel obtained every time is formed into a subgraph.
3. the film playback method of digital film projector system as claimed in claim 2, which is characterized in that the pixel group packet
Containing 4 pixels that 2 rows 2 arrange, corresponding 4 subgraphs of mother matrix image described in each frame " extract institute by setting sequence
Pixel described at least one of each described pixel group in mother matrix image is stated, and the pixel obtained every time is formed
One subgraph " specifically includes:
Method shown in as the following formula obtains the corresponding first frame subgraph of the mother matrix image:
H(m,n)=P(2m,2n-1)
Wherein, H(m,n)Indicate the pixel of m row in the first frame subgraph, the n-th column, P(2m,2n-1)Indicate the mother matrix figure
The pixel of 2m row, 2n-1 column as in, the m, n are positive integer；
Method shown in as the following formula obtains the corresponding second frame subgraph of the mother matrix image:
J(m,n)=P(2m-1,2n-1)
Wherein, J(m,n)Indicate the pixel of m row in the second frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding third frame subgraph of the mother matrix image:
K(m,n)=P(2m-1,2n)
Wherein, K(m,n)Indicate the pixel of m row in the third frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding 4th frame subgraph of the mother matrix image:
L(m,n)=P(2m,2n)
Wherein, L(m,n)Indicate the pixel of m row in the 4th frame subgraph, the n-th column.
4. the film playback method of number projection system as described in claim 1, which is characterized in that " be based on the subgraph
Digital movie packet is formed, and based on digital movie packet described in the digital film projector system plays " it specifically includes:
By the sequence of the corresponding mother matrix image of the subgraph and the acquisition sequence of the subgraph, the subgraph is carried out
It sorts and forms digital movie packet；
Based on the subgraph number that the mother matrix image obtains, the broadcasting multiplying power of the digital film projector system is set；
The digital movie packet is played based on the digital film projector system and by the multiplying power of the setting.
5. the film playback method of number projection system as claimed in claim 4, which is characterized in that " be based on the mother matrix figure
As the subgraph number obtained, the broadcasting multiplying power of the digital film projector system is set " it specifically includes:
The broadcasting multiplying power of the digital film projector system is equal to the image number obtained based on the mother matrix image.
6. the film playback method of digital film projector system as claimed in claim 4, which is characterized in that the digital movie
Projection system includes sequentially connected media server, d-cinema projectors, resolution extension device and projection lens；
Wherein the media server sends synchronization signal to the resolution extension device, broadcasts the digital film projector system
The polarization sequence synchronization of the picture frame and the resolution extension device put.
7. a kind of film playback method of digital film projector system, which is characterized in that the described method includes:
Digital movie packet to be played is obtained, and extracts each frame film image in the digital movie packet；
All pixels point in the film image is divided into multiple pixel groups, wherein each pixel group includes quantity phase
Deng and arrange the identical pixel；
Pixel described at least one of described pixel group of each of described film image is extracted by setting sequence, and will be each
The pixel obtained forms a subgraph；
The acquisition sequence of sequence and the subgraph based on the corresponding film image of the subgraph, and it is based on the number
Word film projection system is shown.
8. the film playback method of digital film projector system as claimed in claim 7, which is characterized in that
" pixel described at least one of each described pixel group in the film image is extracted by setting sequence, and will be every
The pixel of secondary acquisition forms a subgraph " it specifically includes:
It is extracted in the film image described at least one of each described pixel group by sequence from bottom to top, from left to right
Pixel；
The pixel obtained every time is formed into a subgraph.
9. the film playback method of digital film projector system as claimed in claim 8, which is characterized in that the pixel group packet
Containing 4 pixels that 2 rows 2 arrange, corresponding 4 subgraphs of film image described in each frame " extract institute by setting sequence
Pixel described at least one of each described pixel group in film image is stated, and the pixel obtained every time is formed
One subgraph " specifically includes:
Method shown in as the following formula obtains the corresponding first frame subgraph of the film image:
H(m,n)=I(2m,2n-1)
Wherein, H(m,n)Indicate the pixel of m row in the first frame subgraph, the n-th column, I(2m,2n-1)Indicate the film figure
The pixel of 2m row, 2n-1 column as in, the m, n are positive integer；
Method shown in as the following formula obtains the corresponding second frame subgraph of the film image:
J(m,n)=I(2m-1,2n-1)
Wherein, J(m,n)Indicate the pixel of m row in the second frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding third frame subgraph of the film image:
K(m,n)=I(2m-1,2n)
Wherein, K(m,n)Indicate the pixel of m row in the third frame subgraph, the n-th column；
Method shown in as the following formula obtains the corresponding 4th frame subgraph of the mother matrix image:
L(m,n)=I(2m,2n)
Wherein, L(m,n)Indicate the pixel of m row in the 4th frame subgraph, the n-th column.
10. the film playback method of digital film projector system as claimed in claim 7, which is characterized in that the number electricity
Shadow projection system includes sequentially connected media server, d-cinema projectors, resolution extension device and projection lens, institute
Stating media server includes that digital movie packet obtains module and image processing module,
The digital movie packet obtains module, is configured to obtain digital movie packet to be played, and extract the digital movie packet
In each frame film image；
Described image processing module is configured to all pixels point in the film image being divided into multiple pixel groups, wherein
The pixel group is equal comprising quantity and arranges the identical pixel；Each of described film image is extracted by setting sequence
Pixel described at least one of described pixel group, and the pixel obtained every time is formed into a subgraph；
The d-cinema projectors, be configured to the corresponding film image of the subgraph sequence and the subgraph
Acquisition sequential lines projection.
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Application publication date: 20191119 |