CN107277475A - Laser television image processing method, laser television and computer-readable recording medium - Google Patents
Laser television image processing method, laser television and computer-readable recording medium Download PDFInfo
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- CN107277475A CN107277475A CN201710583857.4A CN201710583857A CN107277475A CN 107277475 A CN107277475 A CN 107277475A CN 201710583857 A CN201710583857 A CN 201710583857A CN 107277475 A CN107277475 A CN 107277475A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3188—Scale or resolution adjustment
Abstract
The invention discloses a kind of laser television image processing method, laser television and computer-readable recording medium, laser television image processing method includes：TV signal is received, and picture format in the TV signal is identified；If recognizing picture format for full HD image, interpolation processing is carried out to the full HD image, interpolation image is obtained；Frame frequency f corresponding to the interpolation image carries out process of frequency multiplication, according to the frame frequency after process of frequency multiplication, drives the preset projection module of laser television, exports the corresponding pixel light of the interpolation image.By the present invention, image display resolution can be made significantly to be lifted, image, which is shown, more stablizes smoothness, and improving cost is low, and the picture quality of display is high, with good market application foreground.
Description
Technical field
The present invention relates to intelligent television field, more particularly to laser television image processing method, laser television and computer
Readable storage medium storing program for executing.
Background technology
Laser television be using laser as light source TV, compared with LCD TV its have more preferable color representation,
The advantages such as more energy efficient environmentally friendly, more healthy eyeshield, with huge market prospects.
With the improvement of living standards, requirement of the people to quality of the life also more and more higher, it is desirable to video screen
Color more enriches, to meet visual enjoyment.However, picture presentation format is generally 1920*1080 resolution ratio at present, cause
What is shown on screen is also the image that resolution ratio is 1920*1080, so that user can not be met to more hi-vision display resolution
Pursuit.
The content of the invention
It is a primary object of the present invention to provide a kind of laser television image processing method, laser television and computer-readable
Storage medium, it is intended to solve the not high enough technical problem of image display resolution in the prior art.
To achieve the above object, the present invention is provided at a kind of laser television image processing method, the laser television image
Reason method includes：
TV signal is received, and picture format in the TV signal is identified；
If recognizing picture format for full HD image, interpolation processing is carried out to the full HD image, interpolation is obtained
Image；
Frame frequency f corresponding to the interpolation image carries out process of frequency multiplication, according to the frame frequency after process of frequency multiplication, driving laser electricity
Depending on preset projection module, the corresponding pixel light of the interpolation image is exported.
Preferably, described to carry out interpolation processing to the full HD image, obtaining interpolation image includes：
WithFor interpolation step-length, the pixel to the full HD image level direction and vertical direction carries out interpolation processing,
Obtain interpolation image.
Preferably, the frame frequency f corresponding to the interpolation image, which carries out process of frequency multiplication, includes：
Frame frequency f corresponding to the interpolation image carries out 2 times of process of frequency multiplication, obtains the frame frequency 2f after process of frequency multiplication.
Preferably, the frame frequency according to after process of frequency multiplication, drives the preset projection module of laser television, exports the interpolation
The corresponding pixel light of image includes：
Enter row format conversion to the interpolation image, obtain the interpolation image of LVDS level formats, driving laser television is pre-
Projection module is put, with the 2f corresponding pixel light of frame frequency output interpolation image.
Preferably, the reception TV signal, and include after picture format in the TV signal is identified：
If recognizing described image form for ultra high-definition image, withFor sampling step length, to the ultra high-definition image water
Square sampled to the pixel with vertical direction, obtain the first two field picture, the second frame is obtained according to remaining pixel after sampling
Image；
According to the frame frequency that frequency is differentiated more than human eye, the preset projection module of laser television is driven, by first two field picture
Corresponding pixel light is projeced into screen first position, and the corresponding pixel light of second two field picture is projeced into screen second
Put, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, form ultra high-definition image.
Preferably, it is described to drive the preset projection module of laser television according to the frame frequency that frequency is differentiated more than human eye, will be described
The corresponding pixel light of first two field picture is projeced into screen first position, and the corresponding pixel light of second two field picture is projeced into screen
The curtain second place, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, forms super
Include after high-definition image：
If detecting the ultra high-definition image has serrating phenomenon, the preset projection module of laser television is driven, by institute
State the corresponding pixel light of the first two field picture and be projeced into the screen second place, the corresponding pixel light of second two field picture is projeced into
Screen first position, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, is formed
Ultra high-definition image.
In addition, to achieve the above object, the present invention also provides a kind of laser television, and the laser television includes：Memory,
Processor and the laser television image processing program that can be run on the memory and on the processor is stored in, it is described to swash
The step of laser television image processing method as described above is realized when photoelectricity visible image processing routine is by the computing device.
In addition, to achieve the above object, the present invention also provides a kind of computer-readable recording medium, described computer-readable
Be stored with laser television image processing program on storage medium, real when the laser television image processing program is executed by processor
Existing the step of laser television image processing method as described above.
In the present invention, when picture format is full HD image in the TV signal for recognizing reception, to full HD image
Interpolation processing is carried out, interpolation image is obtained, then frame frequency f corresponding to interpolation image carries out process of frequency multiplication, according to process of frequency multiplication
Frame frequency afterwards, drives the preset projection module of laser television, the corresponding pixel light of output interpolation image.By the present invention, figure can be made
As display resolution is significantly lifted, image, which is shown, more stablizes smoothness, and improving cost is low, and the picture quality of display is high, tool
There is good market application foreground.
Brief description of the drawings
Fig. 1 is the laser television structural representation for the hardware running environment that scheme of the embodiment of the present invention is related to；
Fig. 2 is the schematic diagram of the embodiment of interpolation processing one of the present invention；
Fig. 3 is the schematic diagram of the embodiment of sampling processing one of the present invention；
Fig. 4 is two-way pixel light pixel in the arrangement schematic diagram of screen first embodiment；
Fig. 5 is two-way pixel light pixel in the arrangement schematic diagram of screen second embodiment；
Fig. 6 is the schematic flow sheet of laser television image processing method first embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in figure 1, Fig. 1 is the laser television structural representation for the hardware running environment that scheme of the embodiment of the present invention is related to
Figure.
Laser television of the embodiment of the present invention (LASERTV) be utilize All-Solid working-laser material, produce it is red,
The continuous laser of green, blue three kinds of wavelength is scanned as the light source of color laser TV by television signal control tricolor laser
Image.Its color domain coverage ratio can be up to more than the 90% of human eye gamut range in theory.This is than current LED television highest
62% color domain coverage ratio improves a class again.
The raising of color domain coverage ratio, can not only make whole television image seem more true, have a sense of hierarchy, penetrating
Feel, while the definition of picture can also have lifting by a relatively large margin with the raising of color saturation.Due to being made using laser
For the backlight of TV, it is thinner that laser television can be done, and suitable family uses.Laser television also overcomes human eye sight for a long time
The sense of discomfort seen caused by the iridescent that fluorescent material is produced, and human eye is not radiated.
As shown in figure 1, laser television can include：Processor 1001, such as CPU, display screen 1004, signaling interface
1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is used to realize the connection communication between these components.
Signaling interface 1003 can include wireline interface, the wave point of standard.Memory 1005 can be high-speed RAM memory,
Can be stable memory (non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can be with
It is independently of the storage device of aforementioned processor 1001.
It will be understood by those skilled in the art that the laser television structure shown in Fig. 1 does not constitute the limit to laser television
It is fixed, it can include than illustrating more or less parts, either combine some parts or different parts arrangement.
As shown in figure 1, leading to as operating system, network can be included in a kind of memory 1005 of computer-readable storage medium
Believe module, Subscriber Interface Module SIM and laser television image processing program.
In the laser television shown in Fig. 1, processor 1001 can be used for calling the laser electricity stored in memory 1005
Visible image processing routine, and perform following operate：
TV signal is received, and picture format in the TV signal is identified；
If recognizing picture format for full HD image, interpolation processing is carried out to the full HD image, interpolation is obtained
Image；
Frame frequency f corresponding to the interpolation image carries out process of frequency multiplication, according to the frame frequency after process of frequency multiplication, driving laser electricity
Depending on preset projection module, the corresponding pixel light of the interpolation image is exported.
In the present embodiment, laser television receives TV signal by signaling interface, and TV signal includes radiofrequency signal, HDMI
Signal, usb signal, network signal etc..Laser television is received after TV signal by signaling interface, to original in TV signal
The processing such as picture signal is decoded, color space is changed, (YUV is a kind of face used by eurovision system to output YUV
Color coding method (belongs to PAL), is the color space that PAL and SECAM simulation colors television system is used.In modern color TV
In system, capture is generally carried out using three pipe colour cameras or colored CCD video camera, then the colour picture signal of acquirement
Through color separation, RGB is obtained after amplification correction respectively, then luminance signal Y and two colour difference signal B- are obtained by matrixer
Y (i.e. U), R-Y (i.e. V), last transmitting terminal are encoded three signals of brightness and aberration respectively, are sent out with same channel
Go.The method for expressing of this color is exactly that so-called YUV color spaces are represented.It is it using the importance of YUV color spaces
Luminance signal Y and carrier chrominance signal U, V are separation.) form image, during picture frame frequency is f, the present embodiment, frame frequency f value root
Set according to actual conditions, such as generally 24 frames/second or 25 frames/second or 30 frames/second.After above-mentioned processing, to output
Picture format is identified, in the present embodiment, and picture format is identified and is primarily referred to as that image resolution ratio is identified.Example
Such as, according to recognition result, it is the image that full HD image, i.e. resolution ratio are 2k*1k to learn image, then further full HD to this
Image carries out interpolation processing.
As shown in Fig. 2 Fig. 2 is the schematic diagram of the embodiment of interpolation processing one of the present invention.
The picture element matrix of 2K*1K images be 1920*1080, each pixel labeled as aij (wherein i be 1,2 ...,
1920, j be 1,2 ..., 1080).
Horizontal direction interpolation is carried out to 2K*1K images first, interpolation step-length is, form 2.8K*1K image, its picture
Prime matrix be 2716*1080, each pixel labeled as bxj (wherein x be 1,2 ..., 2716).As x=i, filled out with aij
Fill bxj, i.e. bxj=aij；As x i, adjacent 2 pixels, vertical direction is taken to take more adjacent pixel in the horizontal direction, with adjacent
Three point interpolation, i.e. bxj=*b (x-1) j+*b (x+1) j+*bx (j+1).
Then vertical direction interpolation is carried out to 2.8K*1K images, interpolation step-length is, formation 2.8K*1.4K image,
Its picture element matrix be 2716*1528, each pixel labeled as bxy (wherein y be 1,2 ..., 1528).Work as y=j, with aij come
Fill bxy, i.e. bxy=aij；As y j, take more adjacent pixel, vertical direction to take adjacent 2 pixels in the horizontal direction, use phase
Adjacent three point interpolation, i.e. bxy=*bx (y-1)+* bx (y+1)+* b (x+1) y.
Above-mentioned x=i and y=j remove most close integer.
By above-mentioned processing, obtain interpolation image, interpolation image resolution ratio is 2.8K*1.4K, picture frame frequency is constant, still for
f。
Next process of frequency multiplication is carried out for f interpolation image to frame frequency, Clock Multiplier Factor is 2, that is, obtains frame frequency inserting for 2f
It is worth image.Then level format conversion is carried out for 2f interpolation image to frame frequency, by the level format of interpolation image by Transistor-Transistor Logic level
It is converted into LVDS (Low-Voltage Differential Signaling low-voltage differential signals) level format, DMD (numerals
Micro mirror element) module (" DMD modules " or " dmd chip " is projection module in specification) receives LASER Light Source, in LVDS electricity
Under the driving of ordinary mail number, output resolution ratio is the 2.8K*1.4K corresponding pixel light of interpolation image, and frame frequency is 2f.
In the present embodiment, when picture format is full HD image in the TV signal for recognizing reception, to full HD
Image carries out interpolation processing, obtains interpolation image, and then frame frequency f corresponding to interpolation image carries out process of frequency multiplication, according to frequency multiplication
Frame frequency after processing, drives the preset dmd chip of laser television, the corresponding pixel light of output interpolation image., can by the present embodiment
Image display resolution is greatly improved, image is shown and more stablizes smoothness, improving cost is low, the picture quality of display is high, tool
There is good market application foreground.
Further, processor 1001 can call the laser television image processing program stored in memory 1005, also
Perform following operate：
WithFor interpolation step-length, the pixel to the full HD image level direction and vertical direction carries out interpolation processing,
Obtain interpolation image.
In the present embodiment, it is in order to improve image resolution ratio, that is, to increase in image that interpolation processing is carried out to full HD image
The pixel number of receiving.
As shown in Fig. 2 Fig. 2 is the schematic diagram of the embodiment of interpolation processing one of the present invention.
The picture element matrix of 2K*1K images (and full HD image) is 1920*1080, each pixel is labeled as aij (wherein
I is 1,2 ..., 1920, j be 1,2 ..., 1080).
Horizontal direction interpolation is carried out to 2K*1K images first, interpolation step-length is, form 2.8K*1K image, its picture
Prime matrix be 2716*1080, each pixel labeled as bxj (wherein x be 1,2 ..., 2716).As x=i, filled out with aij
Fill bxj, i.e. bxj=aij；As x i, adjacent 2 pixels, vertical direction is taken to take more adjacent pixel in the horizontal direction, with adjacent
Three point interpolation, i.e. bxj=*b (x-1) j+*b (x+1) j+*bx (j+1).
Then vertical direction interpolation is carried out to 2.8K*1K images, interpolation step-length is, formation 2.8K*1.4K image,
Its picture element matrix be 2716*1528, each pixel labeled as bxy (wherein y be 1,2 ..., 1528).Work as y=j, with aij come
Fill bxy, i.e. bxy=aij；As y j, take more adjacent pixel, vertical direction to take adjacent 2 pixels in the horizontal direction, use phase
Adjacent three point interpolation, i.e. bxy=*bx (y-1)+* bx (y+1)+* b (x+1) y.
Above-mentioned x=i and y=j remove most close integer.
By above-mentioned processing, obtain interpolation image, interpolation image resolution ratio is 2.8K*1.4K, picture frame frequency is constant, still for
f。
In the present embodiment, interpolation processing is carried out to full HD image, obtains the interpolation graphs that resolution ratio is 2.8K*1.4K
Picture so that image display resolution, which has, significantly to be lifted, so that image, which is shown, becomes apparent from true to nature, raising user's viewing body
Test.
Further, processor 1001 can call the laser television image processing program stored in memory 1005, also
Perform following operate：
Frame frequency f corresponding to the interpolation image carries out 2 times of process of frequency multiplication, obtains the frame frequency 2f after process of frequency multiplication.
In the present embodiment, frame frequency (frame rate) refers to the frame or the quantity of image of projection each second or display.Frame frequency
In the isochronous audio and image that are mainly used in film, TV or video.Frame frequency refers to broadcasting how many frame animation per second, at most per second
120 frames.
Frame frequency is used in the isochronous audio and image of film, TV or video.In animation and TV, frame frequency is by film
Learn the standard that (SMPTE) is formulated with Television Engineer.24th, 25 and 30 frames SMPTE time code frame frequencies per second be it is general,
It is every kind of to be used for different piece in industry.The professional frame frequency of film is that 24 frames are per second, and the professional frame frequency of TV is that 30 frames are every in the U.S.
Second.
In the present embodiment, process of frequency multiplication is carried out for f interpolation image to frame frequency, Clock Multiplier Factor is 2, that is, obtain frame frequency for 2f
Interpolation image.
By the present embodiment, display frame frequency is double so that image, which is shown, more stablizes smoothness, further lifting user's viewing
Experience.
Further, processor 1001 can call the laser television image processing program stored in memory 1005, also
Perform following operate：
Enter row format conversion to the interpolation image, obtain the interpolation image of LVDS level formats, driving laser television is pre-
Projection module is put, with the 2f corresponding pixel light of frame frequency output interpolation image.
In the present embodiment, row format conversion is entered for 2f interpolation image to frame frequency, referred to the level format of interpolation image
By TTL (transistor logic) level conversions into LVDS (the low electricity of Low-Voltage Differential Signaling
Pressure difference sub-signal) level format, DMD (DMD) module receives LASER Light Source, in the driving of LVDS level signals
Under, output resolution ratio is the 2.8K*1.4K corresponding pixel light of interpolation image, and frame frequency is 2f.
In the present embodiment, row format conversion is entered to interpolation image, the interpolation image of LVDS level formats is obtained, in LVDS electricity
Under the driving of ordinary mail number, with the 2f corresponding pixel light of frame frequency output interpolation image.Pass through the present embodiment so that image is shown point
Resolution, which has, significantly to be lifted, so that image shows and becomes apparent from true to nature, display frame frequency is double so that image, which is shown, more to be stablized
Smoothness, improves user's viewing experience.
Further, processor 1001 can call the laser television image processing program stored in memory 1005, also
Perform following operate：
If recognizing described image form for ultra high-definition image, withFor sampling step length, to the ultra high-definition image water
Square sampled to the pixel with vertical direction, obtain the first two field picture, the second frame is obtained according to remaining pixel after sampling
Image；
According to the frame frequency that frequency is differentiated more than human eye, the preset projection module of laser television is driven, by first two field picture
Corresponding pixel light is projeced into screen first position, and the corresponding pixel light of second two field picture is projeced into screen second
Put, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, form ultra high-definition image.
In the present embodiment, picture format is identified and is primarily referred to as that image resolution ratio is identified.If according to identification
As a result, it is the image that ultra high-definition image, i.e. resolution ratio are 4k*2k to learn image.
Pixel sampling processing is carried out to ultra high-definition image, withFor sampling step length, to ultra high-definition image level direction and hang down
Nogata to pixel sampled, obtain the first two field picture, the second two field picture obtained according to remaining pixel after sampling.
As shown in figure 3, Fig. 3 is the schematic diagram of the embodiment of sampling processing one of the present invention.
Because the pixel summation of the two field pictures formed after sampling processing in this step needs and former divided superelevation
Pixel in clear image is identical, therefore selection sampling step length is, ultra high-definition image is carried out in horizontal and vertical directions
Sampling.Such as：If it is X (u*v) that the picture element matrix of ultra high-definition image, which is M*N, pixel,；Wherein u be 1,2 ..., M, v be 1,
2nd ..., N, then after being sampled to it, will sample obtained pixel according to its putting in order again in ultra high-definition image
After arrangement, obtain the first two field picture, the first two field picture XA pixel is XA (e*g), wherein e is 1,2 ...,G be 1,
2、...、And XA (e*g) pixel is ultra high-definition two field picture X partial pixel.By in ultra high-definition two field picture X (u*v) removal
State after the first two field picture XA (e*g) pixel, carry out remaining pixel to rearrange combination, form the second two field picture XB, the
Two two field picture XB picture element matrix is alsoSo as to obtain two field pictures.
Then the two field pictures to acquisition enter row format conversion, by the level format of the first two field picture and the second frame by TTL
(transistor logic) level conversion is into LVDS (Low-Voltage Differential Signaling low voltage differences
Signal) level format, DMD (DMD) module receives LASER Light Source, under the driving of LVDS level signals, output
The corresponding pixel light of first two field picture, the corresponding pixel light of the second two field picture, frame frequency are more than human eye and differentiate frequency.It is more than in frame frequency
When human eye differentiates frequency, due to human eye vision persistence characteristic, (persistence of vision (Persistence of vision) phenomenon is light pair
Vision produced by retina retains the phenomenon of a period of time after light fails, still, and its concrete application is the shooting of film
And projection.Reason is caused by the reaction speed of optic nerve.It is the formation of the visual medias such as animation, film and the basis propagated.
Vision is actually the crystalline lens imaging by eyes, and photosensory cell is photosensitive, and converts optical signals to neuroelectricity, is passed back big
Brain causes human visual.The photosensitive of photosensory cell is to lean on some photopigments, and the formation of photopigment needs certain time,
Which forms the mechanism of suspenopsia), 2 tunnel pixel lights go into ultra high-definition image in human eye vision.
By the present embodiment, according to the frame frequency that frequency is differentiated more than human eye, DMD modules are driven, two-way pixel light, profit is exported
Use human eye eye storage characteristic so that two-way pixel light forms ultra high-definition image in human eye, image is greatly improved and shows
Resolution ratio.
Further, processor 1001 can call the laser television image processing program stored in memory 1005, also
Perform following operate：
If detecting the ultra high-definition image has serrating phenomenon, the preset projection module of laser television is driven, by institute
State the corresponding pixel light of the first two field picture and be projeced into the screen second place, the corresponding pixel light of second two field picture is projeced into
Screen first position, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, is formed
Ultra high-definition image.
In the present embodiment, can detect to whether there is serrating phenomenon in ultra high-definition image by preset software,
It can also be and directly judged by user's direct feel.If existing by software detection to ultra high-definition image serrating existing
As then carrying out subsequent operation；If user's direct feel judges that current ultra high-definition image has serrating phenomenon, then pass through remote control
Device, sends instruction, for laser television upon receipt of the instructions, carries out subsequent operation.
Reference picture 4, Fig. 4 is two-way pixel light pixel in the arrangement schematic diagram of screen first embodiment.
Reference picture 5, Fig. 5 is two-way pixel light pixel in the arrangement schematic diagram of screen second embodiment.
As shown in figure 4, when the pixel light of the first two field picture is projeced into screen first position, the corresponding pixel of the second two field picture
Light projection is in the screen second place, if now there is serrating phenomenon, and saw into ultra high-definition image by preset software detection
Tooth coefficient A is more than predetermined threshold value (serrating coefficient is bigger, and the serrating phenomenon of screen is more serious), then changes two-way pixel light and throw
Position is penetrated, the corresponding pixel light of the first two field picture is projeced into the screen second place, the corresponding pixel light of the second two field picture is thrown
Penetrate in screen first position, as shown in figure 5, and obtain the serrating coefficient B of current screen, choose less value in A, B, and with compared with
The corresponding pixel light projection scheme of small value is projected to two-way pixel light.If for example, B is less than A, by the first two field picture correspondence
Pixel light be projeced into the screen second place, the corresponding pixel light of the second two field picture is projeced into screen first position.
In the present embodiment, if detecting ultra high-definition image has serrating phenomenon, change the projection position of two-way pixel light
Put, so as to mitigate image sawtooth, lift picture quality, and then lift user's viewing experience.
In addition, the embodiment of the present invention also proposes a kind of laser television image processing method.
Reference picture 6, Fig. 6 is the schematic flow sheet of laser television image processing method first embodiment of the present invention.
In one embodiment, laser television image processing method includes：
Step S10, receives TV signal, and picture format in the TV signal is identified；
Step S20, if recognizing picture format for full HD image, interpolation processing is carried out to the full HD image,
Obtain interpolation image；
Step S30, frame frequency f corresponding to the interpolation image carries out process of frequency multiplication, according to the frame frequency after process of frequency multiplication, drives
The preset projection module of dynamic laser television, exports the corresponding pixel light of the interpolation image.
In the present embodiment, laser television receives TV signal by signaling interface, and TV signal includes radiofrequency signal, HDMI
Signal, usb signal, network signal etc..Laser television is received after TV signal by signaling interface, to original in TV signal
The processing such as picture signal is decoded, color space is changed, (YUV is a kind of face used by eurovision system to output YUV
Color coding method (belongs to PAL), is the color space that PAL and SECAM simulation colors television system is used.In modern color TV
In system, capture is generally carried out using three pipe colour cameras or colored CCD video camera, then the colour picture signal of acquirement
Through color separation, RGB is obtained after amplification correction respectively, then luminance signal Y and two colour difference signal B- are obtained by matrixer
Y (i.e. U), R-Y (i.e. V), last transmitting terminal are encoded three signals of brightness and aberration respectively, are sent out with same channel
Go.The method for expressing of this color is exactly that so-called YUV color spaces are represented.It is it using the importance of YUV color spaces
Luminance signal Y and carrier chrominance signal U, V are separation.) form image, during picture frame frequency is f, the present embodiment, frame frequency f value root
Set according to actual conditions, such as generally 24 frames/second or 25 frames/second or 30 frames/second.After above-mentioned processing, to output
Picture format is identified, in the present embodiment, and picture format is identified and is primarily referred to as that image resolution ratio is identified.Example
Such as, according to recognition result, it is the image that full HD image, i.e. resolution ratio are 2k*1k to learn image, then further full HD to this
Image carries out interpolation processing.
As shown in Fig. 2 Fig. 2 is the schematic diagram of the embodiment of interpolation processing one of the present invention.
The picture element matrix of 2K*1K images be 1920*1080, each pixel labeled as aij (wherein i be 1,2 ...,
1920, j be 1,2 ..., 1080).
Horizontal direction interpolation is carried out to 2K*1K images first, interpolation step-length is, form 2.8K*1K image, its picture
Prime matrix be 2716*1080, each pixel labeled as bxj (wherein x be 1,2 ..., 2716).As x=i, filled out with aij
Fill bxj, i.e. bxj=aij；As x i, adjacent 2 pixels, vertical direction is taken to take more adjacent pixel in the horizontal direction, with adjacent
Three point interpolation, i.e. bxj=*b (x-1) j+*b (x+1) j+*bx (j+1).
Then vertical direction interpolation is carried out to 2.8K*1K images, interpolation step-length is, formation 2.8K*1.4K image,
Its picture element matrix be 2716*1528, each pixel labeled as bxy (wherein y be 1,2 ..., 1528).Work as y=j, with aij come
Fill bxy, i.e. bxy=aij；As y j, take more adjacent pixel, vertical direction to take adjacent 2 pixels in the horizontal direction, use phase
Adjacent three point interpolation, i.e. bxy=*bx (y-1)+* bx (y+1)+* b (x+1) y.
Above-mentioned x=i and y=j remove most close integer.
By above-mentioned processing, obtain interpolation image, interpolation image resolution ratio is 2.8K*1.4K, picture frame frequency is constant, still for
f。
Next process of frequency multiplication is carried out for f interpolation image to frame frequency, Clock Multiplier Factor is 2, that is, obtains frame frequency inserting for 2f
It is worth image.Then level format conversion is carried out for 2f interpolation image to frame frequency, by the level format of interpolation image by Transistor-Transistor Logic level
It is converted into LVDS (Low-Voltage Differential Signaling low-voltage differential signals) level format, DMD (numerals
Micro mirror element) module receives LASER Light Source, and under the driving of LVDS level signals, output resolution ratio is inserted for 2.8K*1.4K's
It is worth the corresponding pixel light of image, frame frequency is 2f.
In the present embodiment, when picture format is full HD image in the TV signal for recognizing reception, to full HD
Image carries out interpolation processing, obtains interpolation image, and then frame frequency f corresponding to interpolation image carries out process of frequency multiplication, according to frequency multiplication
Frame frequency after processing, drives the preset dmd chip of laser television, the corresponding pixel light of output interpolation image., can by the present embodiment
Image display resolution is greatly improved, image is shown and more stablizes smoothness, improving cost is low, the picture quality of display is high, tool
There is good market application foreground.
Further, in the embodiment of laser television image processing method one of the present invention, the full HD image is carried out
Interpolation processing, obtaining interpolation image includes：
WithFor interpolation step-length, the pixel to the full HD image level direction and vertical direction carries out interpolation processing,
Obtain interpolation image.
In the present embodiment, it is in order to improve image resolution ratio, that is, to increase in image that interpolation processing is carried out to full HD image
The pixel number of receiving.
As shown in Fig. 2 Fig. 2 is the schematic diagram of the embodiment of interpolation processing one of the present invention.
The picture element matrix of 2K*1K images (and full HD image) is 1920*1080, each pixel is labeled as aij (wherein
I is 1,2 ..., 1920, j be 1,2 ..., 1080).
Horizontal direction interpolation is carried out to 2K*1K images first, interpolation step-length is, form 2.8K*1K image, its picture
Prime matrix be 2716*1080, each pixel labeled as bxj (wherein x be 1,2 ..., 2716).As x=i, filled out with aij
Fill bxj, i.e. bxj=aij；As x i, adjacent 2 pixels, vertical direction is taken to take more adjacent pixel in the horizontal direction, with adjacent
Three point interpolation, i.e. bxj=*b (x-1) j+*b (x+1) j+*bx (j+1).
Then vertical direction interpolation is carried out to 2.8K*1K images, interpolation step-length is, formation 2.8K*1.4K image,
Its picture element matrix be 2716*1528, each pixel labeled as bxy (wherein y be 1,2 ..., 1528).Work as y=j, with aij come
Fill bxy, i.e. bxy=aij；As y j, take more adjacent pixel, vertical direction to take adjacent 2 pixels in the horizontal direction, use phase
Adjacent three point interpolation, i.e. bxy=*bx (y-1)+* bx (y+1)+* b (x+1) y.
Above-mentioned x=i and y=j remove most close integer.
By above-mentioned processing, obtain interpolation image, interpolation image resolution ratio is 2.8K*1.4K, picture frame frequency is constant, still for
f。
In the present embodiment, interpolation processing is carried out to full HD image, obtains the interpolation graphs that resolution ratio is 2.8K*1.4K
Picture so that image display resolution, which has, significantly to be lifted, so that image, which is shown, becomes apparent from true to nature, raising user's viewing body
Test.
Further, it is described to the interpolation image pair in the embodiment of laser television image processing method one of the present invention
The frame frequency f answered, which carries out process of frequency multiplication, to be included：
Frame frequency f corresponding to the interpolation image carries out 2 times of process of frequency multiplication, obtains the frame frequency 2f after process of frequency multiplication.
In the present embodiment, frame frequency (frame rate) refers to the frame or the quantity of image of projection each second or display.Frame frequency
In the isochronous audio and image that are mainly used in film, TV or video.Frame frequency refers to broadcasting how many frame animation per second, at most per second
120 frames.
Frame frequency is used in the isochronous audio and image of film, TV or video.In animation and TV, frame frequency is by film
Learn the standard that (SMPTE) is formulated with Television Engineer.24th, 25 and 30 frames SMPTE time code frame frequencies per second be it is general,
It is every kind of to be used for different piece in industry.The professional frame frequency of film is that 24 frames are per second, and the professional frame frequency of TV is that 30 frames are every in the U.S.
Second.
In the present embodiment, process of frequency multiplication is carried out for f interpolation image to frame frequency, Clock Multiplier Factor is 2, that is, obtain frame frequency for 2f
Interpolation image.
By the present embodiment, display frame frequency is double so that image, which is shown, more stablizes smoothness, further lifting user's viewing
Experience.
Further, in the embodiment of laser television image processing method one of the present invention, according to the frame frequency after process of frequency multiplication,
The preset projection module of laser television is driven, exporting the corresponding pixel light of the interpolation image includes：
Enter row format conversion to the interpolation image, obtain the interpolation image of LVDS level formats, driving laser television is pre-
Projection module is put, with the 2f corresponding pixel light of frame frequency output interpolation image.
In the present embodiment, row format conversion is entered for 2f interpolation image to frame frequency, referred to the level format of interpolation image
By TTL (transistor logic) level conversions into LVDS (the low electricity of Low-Voltage Differential Signaling
Pressure difference sub-signal) level format, DMD (DMD) module receives LASER Light Source, in the driving of LVDS level signals
Under, output resolution ratio is the 2.8K*1.4K corresponding pixel light of interpolation image, and frame frequency is 2f.
In the present embodiment, row format conversion is entered to interpolation image, the interpolation image of LVDS level formats is obtained, in LVDS electricity
Under the driving of ordinary mail number, with the 2f corresponding pixel light of frame frequency output interpolation image.Pass through the present embodiment so that image is shown point
Resolution, which has, significantly to be lifted, so that image shows and becomes apparent from true to nature, display frame frequency is double so that image, which is shown, more to be stablized
Smoothness, improves user's viewing experience.
Further, in the embodiment of laser television image processing method one of the present invention, TV signal is received, and to described
Picture format includes after being identified in TV signal：
If recognizing described image form for ultra high-definition image, withFor sampling step length, to the ultra high-definition image water
Square sampled to the pixel with vertical direction, obtain the first two field picture, the second frame is obtained according to remaining pixel after sampling
Image；
According to the frame frequency that frequency is differentiated more than human eye, the preset projection module of laser television is driven, by first two field picture
Corresponding pixel light is projeced into screen first position, and the corresponding pixel light of second two field picture is projeced into screen second
Put, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, form ultra high-definition image.
In the present embodiment, picture format is identified and is primarily referred to as that image resolution ratio is identified.If according to identification
As a result, it is the image that ultra high-definition image, i.e. resolution ratio are 4k*2k to learn image.
Pixel sampling processing is carried out to ultra high-definition image, withFor sampling step length, to ultra high-definition image level direction and hang down
Nogata to pixel sampled, obtain the first two field picture, the second two field picture obtained according to remaining pixel after sampling.
As shown in figure 3, Fig. 3 is the schematic diagram of the embodiment of sampling processing one of the present invention.
Because the pixel summation of the two field pictures formed after sampling processing in this step needs and former divided superelevation
Pixel in clear image is identical, therefore selection sampling step length is, ultra high-definition image is carried out in horizontal and vertical directions
Sampling.Such as：If it is X (u*v) that the picture element matrix of ultra high-definition image, which is M*N, pixel,；Wherein u be 1,2 ..., M, v be 1,
2nd ..., N, then after being sampled to it, will sample obtained pixel according to its putting in order again in ultra high-definition image
After arrangement, obtain the first two field picture, the first two field picture XA pixel is XA (e*g), wherein e is 1,2 ...,G be 1,
2、...、And XA (e*g) pixel is ultra high-definition two field picture X partial pixel.By in ultra high-definition two field picture X (u*v) removal
State after the first two field picture XA (e*g) pixel, carry out remaining pixel to rearrange combination, form the second two field picture XB, the
Two two field picture XB picture element matrix is alsoSo as to obtain two field pictures.
Then the two field pictures to acquisition enter row format conversion, by the level format of the first two field picture and the second frame by TTL
(transistor logic) level conversion is into LVDS (Low-Voltage Differential Signaling low voltage differences
Signal) level format, DMD (DMD) module receives LASER Light Source, under the driving of LVDS level signals, output
The corresponding pixel light of first two field picture, the corresponding pixel light of the second two field picture, frame frequency are more than human eye and differentiate frequency.It is more than in frame frequency
When human eye differentiates frequency, due to human eye vision persistence characteristic, (persistence of vision (Persistence of vision) phenomenon is light pair
Vision produced by retina retains the phenomenon of a period of time after light fails, still, and its concrete application is the shooting of film
And projection.Reason is caused by the reaction speed of optic nerve.It is the formation of the visual medias such as animation, film and the basis propagated.
Vision is actually the crystalline lens imaging by eyes, and photosensory cell is photosensitive, and converts optical signals to neuroelectricity, is passed back big
Brain causes human visual.The photosensitive of photosensory cell is to lean on some photopigments, and the formation of photopigment needs certain time,
Which forms the mechanism of suspenopsia), 2 tunnel pixel lights go into ultra high-definition image in human eye vision.
By the present embodiment, according to the frame frequency that frequency is differentiated more than human eye, DMD modules are driven, two-way pixel light, profit is exported
Use human eye eye storage characteristic so that two-way pixel light forms ultra high-definition image in human eye, image is greatly improved and shows
Resolution ratio.
Further, in the embodiment of laser television image processing method one of the present invention, frequency is differentiated according to more than human eye
Frame frequency, drive the preset projection module of laser television, the corresponding pixel light of first two field picture is projeced into screen first
Put, the corresponding pixel light of second two field picture is projeced into the screen second place, by the pixel column of the first two field picture and
The pixel column of two two field pictures is spaced on screen, is included after formation ultra high-definition image：
If detecting the ultra high-definition image has serrating phenomenon, the preset projection module of laser television is driven, by institute
State the corresponding pixel light of the first two field picture and be projeced into the screen second place, the corresponding pixel light of second two field picture is projeced into
Screen first position, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, is formed
Ultra high-definition image.
In the present embodiment, can detect to whether there is serrating phenomenon in ultra high-definition image by preset software,
It can also be and directly judged by user's direct feel.If existing by software detection to ultra high-definition image serrating existing
As then carrying out subsequent operation；If user's direct feel judges that current ultra high-definition image has serrating phenomenon, then pass through remote control
Device, sends instruction, for laser television upon receipt of the instructions, carries out subsequent operation.
Reference picture 4, Fig. 4 is two-way pixel light pixel in the arrangement schematic diagram of screen first embodiment.
Reference picture 5, Fig. 5 is two-way pixel light pixel in the arrangement schematic diagram of screen second embodiment.
As shown in figure 4, when the pixel light of the first two field picture is projeced into screen first position, the corresponding pixel of the second two field picture
Light projection is spaced in the screen second place, the pixel column of the pixel column of the first two field picture and the second two field picture on screen.
If now there is serrating phenomenon into ultra high-definition image by preset software detection, and serrating coefficient A is more than predetermined threshold value
(serrating coefficient is bigger, and the serrating phenomenon of screen is more serious), then change two-way pixel light launching position, by the first two field picture pair
The pixel light answered is projeced into the screen second place, and the corresponding pixel light of the second two field picture is projeced into screen first position, such as Fig. 5
It is shown, and the serrating coefficient B of current screen is obtained, less value in A, B is chosen, and with the corresponding pixel light projection side of smaller value
Case is projected to two-way pixel light.If for example, B is less than A, the corresponding pixel light of the first two field picture is projeced into screen second
Position, screen first position is projeced into by the corresponding pixel light of the second two field picture.
In the present embodiment, if detecting ultra high-definition image has serrating phenomenon, change the projection position of two-way pixel light
Put, so as to mitigate image sawtooth, lift picture quality, and then lift user's viewing experience.
In addition, the embodiment of the present invention also proposes a kind of computer-readable recording medium, the computer-readable recording medium
On be stored with laser television image processing program, as above institute is realized when the laser television image processing program is executed by processor
The step of laser television image processing method stated.
The specific embodiment of computer-readable recording medium of the present invention is respectively implemented with above-mentioned laser television image processing program
Example is essentially identical, will not be described here.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property is included, so that process, method, article or system including a series of key elements not only include those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or system institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in process, method, article or the system of key element.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Understood based on such, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions are to cause a laser television performs the present invention each
Method described in individual embodiment.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of laser television image processing method, it is characterised in that the laser television image processing method includes：
TV signal is received, and picture format in the TV signal is identified；
If recognizing picture format for full HD image, interpolation processing is carried out to the full HD image, interpolation image is obtained；
Frame frequency f corresponding to the interpolation image carries out process of frequency multiplication, and according to the frame frequency after process of frequency multiplication, driving laser television is pre-
Projection module is put, the corresponding pixel light of the interpolation image is exported.
2. laser television image processing method as claimed in claim 1, it is characterised in that described to enter to the full HD image
Row interpolation processing, obtaining interpolation image includes：
WithFor interpolation step-length, the pixel to the full HD image level direction and vertical direction carries out interpolation processing, obtained
Interpolation image.
3. laser television image processing method as claimed in claim 1, it is characterised in that described to interpolation image correspondence
Frame frequency f carry out process of frequency multiplication include：
Frame frequency f corresponding to the interpolation image carries out 2 times of process of frequency multiplication, obtains the frame frequency 2f after process of frequency multiplication.
4. laser television image processing method as claimed any one in claims 1 to 3, it is characterised in that described according to again
Frame frequency after frequency processing, drives the preset projection module of laser television, and exporting the corresponding pixel light of the interpolation image includes：
Enter row format conversion to the interpolation image, obtain the interpolation image of LVDS level formats, driving laser television is preset to throw
Module is penetrated, with the 2f corresponding pixel light of frame frequency output interpolation image.
5. laser television image processing method as claimed in claim 1, it is characterised in that the reception TV signal, and it is right
Picture format includes after being identified in the TV signal：
If recognizing described image form for ultra high-definition image, withFor sampling step length, to the ultra high-definition image level side
Sampled to the pixel with vertical direction, obtain the first two field picture, the second two field picture is obtained according to remaining pixel after sampling；
According to the frame frequency that frequency is differentiated more than human eye, the preset projection module of laser television is driven, by first two field picture correspondence
Pixel light be projeced into screen first position, the corresponding pixel light of second two field picture is projeced into the screen second place, with
The pixel column of the pixel column of first two field picture and the second two field picture is spaced on screen, ultra high-definition image is formed.
6. laser television image processing method as claimed in claim 5, it is characterised in that described to differentiate frequency according to more than human eye
The frame frequency of rate, drives the preset projection module of laser television, the corresponding pixel light of first two field picture is projeced into screen first
Position, the screen second place is projeced into by the corresponding pixel light of second two field picture, by the pixel column of the first two field picture and
The pixel column of second two field picture is spaced on screen, is included after formation ultra high-definition image：
If detecting the ultra high-definition image has a serrating phenomenon, the preset projection module of laser television is driven, by described the
The corresponding pixel light of one two field picture is projeced into the screen second place, and the corresponding pixel light of second two field picture is projeced into screen
First position, the pixel column of the pixel column of the first two field picture and the second two field picture is spaced on screen, forms superelevation
Clear image.
7. a kind of laser television, it is characterised in that the laser television includes：Memory, processor and it is stored in the storage
On device and the laser television image processing program that can run on the processor, the laser television image processing program is by institute
Following steps are realized when stating computing device：
TV signal is received, and picture format in the TV signal is identified；
If recognizing picture format for full HD image, interpolation processing is carried out to the full HD image, interpolation image is obtained；
Frame frequency f corresponding to the interpolation image carries out process of frequency multiplication, and according to the frame frequency after process of frequency multiplication, driving laser television is pre-
Projection module is put, the corresponding pixel light of the interpolation image is exported.
8. laser television as claimed in claim 7, it is characterised in that the laser television image processing program is by the processing
Device also realizes following steps when performing：
WithFor interpolation step-length, the pixel to the full HD image level direction and vertical direction carries out interpolation processing, obtained
Interpolation image.
9. laser television as claimed in claim 7, it is characterised in that the laser television image processing program is by the processing
Device also realizes following steps when performing：
Enter row format conversion to the interpolation image, obtain the interpolation image of LVDS level formats, driving laser television is preset to throw
Module is penetrated, with the 2f corresponding pixel light of frame frequency output interpolation image.
10. a kind of computer-readable recording medium, it is characterised in that be stored with laser electricity on the computer-readable recording medium
Visible image processing routine, is realized when the laser television image processing program is executed by processor as any in claim 1 to 6
Described in laser television image processing method the step of.
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