CN107888844A - Picture and text and real-time video mixed display method, system, the device and system of compatible video capability and image-text video mixed display - Google Patents
Picture and text and real-time video mixed display method, system, the device and system of compatible video capability and image-text video mixed display Download PDFInfo
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- CN107888844A CN107888844A CN201711090052.2A CN201711090052A CN107888844A CN 107888844 A CN107888844 A CN 107888844A CN 201711090052 A CN201711090052 A CN 201711090052A CN 107888844 A CN107888844 A CN 107888844A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
Present invention is disclosed the device and system of picture and text and real-time video mixed display method, system, compatible video capability and image-text video mixed display, mixed display method are as follows：Receive LCD control signals, image rgb signal and real time video signals；Real time video signals are integrated into the video rgb signal with LCD with clock；Image rgb signal and video rgb signal are mixed using the clock of LCD control signals as driving source, video rgb signal is first parsed to the video image rgb signal to be formed and be matched with LCD resolution；Again by the pixel value for each pixel for judging image rgb signal, to determine to be sent to the rgb value of LCD each pixel, and these rgb values are exported together with LCD control signals.The present invention had both realized the mixed display of picture and text and real-time screen, solves the drawbacks of using special integrated driving IC and ARM chip drives liquid crystal displays again, the stability of driver is improved with FPGA parallel processing capability, adds versatility, reduces the complexity of exploitation.
Description
Technical field
The present invention relates to LCD mixed displays field, especially picture and text and real-time video mixed display method, system and can
The device and system of compatible video function and image-text video mixed display.
Background technology
Driving device of liquid crystal display is to ensure the important component that liquid crystal is normally shown, with the continuous hair of lcd technology
Exhibition, product generally requires the function that compatible real-time video is shown, and while real-time video display, often needs other
Icon, prompt text, the prompt message such as symbol suspend or Transparence Display on the video images, that is, need picture and text, regard in real time
The mixed display function of frequency, wherein automobile, mine car, pipe robot, engineering machinery etc. need the equipment pair that man-machine interaction is shown
It is especially common in the requirement of these functions.
At present, the application and development that general picture and text, video mix are shown, two general orientation are broadly divided into：
(1) special lcd drive chip is used
Such chip internal is integrated with video decoding, liquid crystal drive function, such as the MSTAR in Taiwan, the Ai Kesheng in Guangdong
The special integrated chip of production.This method is applied to single video and shows occasion, or simply default OSD windowings processing,
Mixed display driving versatility for general occasion is low.In actual applications, it is usually used in market monitoring, digital code player, TV
The occasions such as display.The advantage of this development scheme is that its cost is low, the construction cycle is short.
(2) high-end ARM chips are used
Many Embedded Application fields that ARM has been penetrated into daily life, such as mobile phone, flat board intelligent terminal.Profit
It can make it that liquid crystal display is more diversified with units such as memory management, operating systems, but be carried on the back for many relatively simple applications
For scape, high development cost, longer construction cycle are also the reason for it is difficult to popularize in many fields.In addition, permitted
In multi-environment complicated engineer applied, interference is also that it has to consider and solved the problems, such as.
Therefore, the compatible real-time video display function of driving device of liquid crystal display and picture and text, real-time video mixing are enable
Display function can solve the problem that the basic problems such as cost, stability, versatility become urgent problem to be solved again simultaneously.
The content of the invention
The purpose of the present invention is exactly to solve the above-mentioned problems in the prior art, there is provided picture and text and real-time video mix
Close display methods, system and the device and system of compatible video capability and image-text video mixed display.
The purpose of the present invention is achieved through the following technical solutions：
Present invention is disclosed picture and text and real-time video mixed display method, comprise the following steps：
S1, LCD control signals are received, the image RGB signals at least formed by icon, word, background combination and are regarded in real time
Frequency signal；
S2, real time video signals are decoded and are integrated into the video rgb signal of clock same with LCD clock signal；
S3, using the clock of the LCD control signals as driving source by designated frame video rgb signal and corresponding two field picture
Rgb signal is mixed, and it comprises at least following steps
S31, after video rgb signal is parsed, combine to be formed and LCD resolution by the video of operation amplifier and multichannel
The video image rgb signal of matching；
S32, the pixel value of each pixel by judging image rgb signal, to determine to be sent to LCD each picture
The rgb value of vegetarian refreshments is the rgb value of video image rgb signal corresponding pixel points, or the RGB of image rgb signal corresponding pixel points
Value, or the rgb value of both weighted calculation；
S4, the rgb value for each pixel for being sent to LCD is exported together with LCD control signals and shows and connects to LCD
Mouthful.
Preferably, described image rgb signal is drawn by GUI application functions and formed, and it includes one group of pixel with the LCD
The pixel of Point matching, and the color value of each pixel of described image rgb signal meets that the value of Green colors is | 0x01 or
The value of value value ＆0xFE or the Bule color of Green colors is | 0x01.
Preferably, the real time video signals are gathered by camera, and are converted to BT656 forms by video AD conversion chip
Data.
Preferably, the S32 steps comprise at least following process：
S321, judge according to sequential the Green colors of each pixel of image rgb signal lowest order and Blue colors most
The value of low level；
S322, when some pixel for judging image rgb signal Green colors lowest order for 1 when, it is determined that being sent to
The rgb value of the upper corresponding pixel points of LCD is the rgb value of pixel corresponding with pixel on LCD in video image rgb signal；
S323, when the lowest order of the Green colors for some pixel for judging image rgb signal is the minimum of 0, Blue colors
When position is 0, it is determined that the rgb value for being sent to corresponding pixel points on LCD is picture corresponding with pixel on LCD in image rgb signal
The rgb value of vegetarian refreshments；
S324, when the lowest order of the Green colors for some pixel for judging image rgb signal is the minimum of 0, Blue colors
When position is 1, it is determined that the rgb value for being sent to corresponding pixel points on LCD is corresponding with pixel on LCD in video image RGB signals
Pixel rgb value and image rgb signal in pixel corresponding with pixel on LCD rgb value weighted value.
The another object of this patent, it is to provide a kind of picture and text and real-time video mixed display system, including
Information acquisition module, for receiving LCD control signals, the image at least formed by icon, word, background combination
Rgb signal and real time video signals；
Video decoding module, for being decoded real time video signals and being integrated into clock same with LCD clock signal
Video rgb signal；
Mixing module, for using the clock of the LCD control signals as driving source by designated frame video rgb signal and
Corresponding two field picture rgb signal is mixed, and it includes
Video rgb signal decoding unit, after video rgb signal is parsed, by regarding for operation amplifier and multichannel
Frequency combination forms the video image rgb signal matched with LCD resolution；
Judging unit, for the pixel value of each pixel by judging image rgb signal, to determine to be sent to LCD
Each pixel rgb value be video image rgb signal corresponding pixel points RGB values, or image rgb signal corresponds to picture
The rgb value of vegetarian refreshments, or the RGB values of both weighted calculation；
Signal output module, for will be sent to the rgb value of LCD each pixel together with LCD control signals it is defeated
Go out and give LCD display interfaces.
Preferably, the judging unit includes
Judgment sub-unit, the lowest order of the Green colors of each pixel for judging image rgb signal according to sequential
With the value of the lowest order of Blue colors；
Final pixel value acquiring unit, is used for
When some pixel for judging image rgb signal Green colors lowest order for 1 when, it is determined that being sent to LCD Shang couple
The rgb value for answering pixel is the rgb value of pixel corresponding with pixel on LCD in video image rgb signal；
When the lowest order of the Green colors for some pixel for judging image rgb signal for the lowest order of 0, Blue colors is 0
When, it is determined that the rgb value for being sent to corresponding pixel points on LCD is pixel corresponding with pixel on LCD in image rgb signal
Rgb value；
When the lowest order of the Green colors for some pixel for judging image rgb signal for the lowest order of 0, Blue colors is 1
When, it is determined that the rgb value for being sent to corresponding pixel points on LCD is picture corresponding with pixel on LCD in video image RGB signals
The weighted value of the rgb value of pixel corresponding with pixel on LCD in the rgb value and image rgb signal of vegetarian refreshments.
The further purpose of this patent, it is to provide a kind of dress of compatible video capability and image-text video mixed display
Put, including MCU and field programmable gate array, the MCU include being used to connect LCD display interfaces or the field-programmable
The selection resistance of gate array, the field programmable gate array can obtain real time video signals, and it includes showing for connecting LCD
The interface of interface and any of the above-described picture and text and real-time video mixed display system.
Preferably, the MCU, selection resistance, field programmable gate array are integrated on one piece of pcb board.
Further aim of the present invention, which also resides in, provides a kind of compatible video capability and image-text video mixed display system,
Include the device of any of the above-described compatible video capability and image-text video mixed display, the compatible video capability and picture and text
The device that video mix is shown is connected with LCD display interfaces and video acquisition device.
Preferably, the video acquisition device includes camera and for camera signals to be converted into BT656 forms
The video AD conversion chip of data, the video AD conversion chip connect the field programmable gate array.
The advantages of technical solution of the present invention, is mainly reflected in：
Deft design of the present invention, method is simple, by advance to each pixel of the images of the compositions such as icon, word
RGB value is set as that follow-up picture and text and the mixing of real-time screen provide Filtering system, then is entered real time video signals by FPGA
Row parsing, and according to Filtering system set in advance, by the transmission of pixel property, carry out icon, word etc. and real-time video
Mixing, both realized the mixed display function of picture and text and real-time screen, while solve using special integrated driving IC and ARM
The drawbacks of chip drives liquid crystal display, the stability of driver is improved with FPGA parallel processing capability, controlled by formulating
System instruction rule adds the versatility that driver uses, and reduces the complexity of exploitation.
The device of compatible video capability and the image-text video mixed display of the present invention, be able to will be selected according to being actually needed
Resistance is selected to be connected with LCD display interfaces or FPGA, and FPGA can connect real-time video collecting apparatus and LCD display interfaces, from
And the compatibility that real-time screen function whether there is is realized, realize simple for structure, cost is low, and the integrated level of equipment is high.
Brief description of the drawings
Fig. 1 is the process schematic of this patent method；
Fig. 2 is the structured flowchart of compatible video capability and image-text video the mixed display system of this patent.
Embodiment
The purpose of the present invention, advantage and feature, will by the non-limitative illustration of preferred embodiment below carry out diagram and
Explain.These embodiments are only the prominent examples using technical solution of the present invention, it is all take equivalent substitution or equivalent transformation and
The technical scheme of formation, all falls within the scope of protection of present invention.
This patent discloses picture and text and real-time video mixed display system, as shown in Figure 2, including information acquisition module,
Video decoding module, mixing module and signal output module, wherein
Described information acquisition module is used to receive LCD control signals, the figure at least formed by icon, word, background combination
As rgb signal and real time video signals；
The LCD control signals comprise at least EN (enabled) signal, CLK (clock) signal, can be extracted by EN signals
The row signal and field signal of vision signal, whereby it was confirmed that effectively and position whether data value under each clock.
Described image rgb signal is drawn to be formed using GUI application functions, and it includes one group of pixel with the LCD
The pixel matched somebody with somebody, and the color value of each pixel of described image rgb signal meets that the value of Green colors is | 0x01 or
The value of value value ＆0xFE or the Bule color of Green colors is | 0x01, wherein what " 0x " represented is 16 systems, such expression method
RGB888 and RGB565 situation can be included.
When the value of the Green colors of a certain pixel is | 0x01, that is, the lowest order that can guarantee that pixel Green colors are 1,
The pixel is transparent；When the value of the Bule colors of a certain pixel is | 0x01, that is, it can guarantee that the minimum of pixel Blue colors
Position is 1, and now the pixel is mixed display；When the value of the Green colors of a certain pixel is that can guarantee that the pixel
The lowest order of the Green colors of point is 0, corresponding, and the pixel, which suspends, to be shown.
The real time video signals are the signals of the NTSC format collected by camera, and by video AD conversion core
Piece is converted to the data of the BT656 forms of 54M clocks.
The Video decoding module is used to decode real time video signals and be integrated into clock same with LCD clock signal
Video rgb signal, the clock of the LCD can be any clock, be repeated no more herein for known technology.
The mixing module is used for designated frame video rgb signal using the clock of the LCD control signals as driving source
Mixed with corresponding two field picture rgb signal, it includes
Video rgb signal decoding unit, after video rgb signal is parsed, by regarding for operation amplifier and multichannel
Frequency combination forms the video image rgb signal matched with LCD resolution；
Judging unit, for the pixel value of each pixel by judging image rgb signal, to determine to be sent to LCD
Each pixel rgb value be video image rgb signal corresponding pixel points RGB values, or image rgb signal corresponds to picture
The rgb value of vegetarian refreshments, or the RGB values of both weighted calculation.
Specifically, the judging unit includes
Judgment sub-unit, the lowest order of the Green colors of each pixel for judging image rgb signal according to sequential
With the value of the lowest order of Blue colors；
Final pixel value acquiring unit, for the minimum of the Green colors when some pixel for judging image rgb signal
When position is 1, it is determined that the rgb value for being sent to corresponding pixel points on LCD is corresponding with pixel on LCD in video image RGB signals
Pixel rgb value；When the Green colors for some pixel for judging image rgb signal lowest order for 0, Blue colors most
When low level is 0, it is determined that the rgb value for being sent to corresponding pixel points on LCD is corresponding with pixel on LCD in image rgb signal
The rgb value of pixel；When the lowest order of the Green colors for some pixel for judging image rgb signal is the minimum of 0, Blue colors
When position is 1, it is determined that the rgb value for being sent to corresponding pixel points on LCD is corresponding with pixel on LCD in video image RGB signals
Pixel rgb value and image rgb signal in pixel corresponding with pixel on LCD rgb value weighted value.
Signal output module, for will be sent to the rgb value of LCD each pixel together with LCD control signals it is defeated
Go out and give LCD display interfaces.
Picture and text corresponding to said system and real-time video mixed display method, as shown in Figure 1, comprise the following steps：
S1, LCD control signals are received, the image RGB signals at least formed by icon, word, background combination and are regarded in real time
Frequency signal.
S2, real time video signals are decoded and are integrated into the video rgb signal of clock same with LCD clock signal.
S3, using the clock of the LCD control signals as driving source by designated frame video rgb signal and corresponding two field picture
Rgb signal is mixed, and it comprises at least following steps
S31, the field signal of a frame video is parsed first, this is the beginning of a width figure, then parses the row letter of video
Number, this is the beginning of the first row, while the position of first pixel and rgb value are known that, corresponding also just to can determine
The position of each pixel of one frame video image and rgb value, because the initial data of vision signal can not cover whole LCD,
Therefore after video rgb signal is parsed, operation amplifier need to be passed through and the video of multichannel combines to form what is matched with LCD resolution
Video image rgb signal.
S32, the pixel value of each pixel by judging image rgb signal, to determine to be sent to LCD each picture
The rgb value of vegetarian refreshments is the rgb value of video image rgb signal corresponding pixel points, or the RGB of image rgb signal corresponding pixel points
Value, or the rgb value of both weighted calculation.
The S32 steps specifically have including procedure below：
S321, judge according to sequential the Green colors of each pixel of image rgb signal lowest order and Blue colors most
The value of low level.
S322, when some pixel for judging image rgb signal Green colors lowest order for 1 when, i.e. image RGB letter
Number the property of the pixel be transparent, it is determined that the rgb value for being sent to corresponding pixel points on LCD is video image rgb signal
In pixel corresponding with pixel on LCD rgb value, the content of video is shown in corresponding points on final LCD.
S323, when the lowest order of the Green colors for some pixel for judging image rgb signal is the minimum of 0, Blue colors
When position is 0, it is determined that the rgb value for being sent to corresponding pixel points on LCD is picture corresponding with pixel on LCD in image rgb signal
The content of icon, word is shown in the rgb value of vegetarian refreshments, i.e., pixel corresponding on final LCD, i.e. icon, word etc. suspends
It is shown on video.
S324, when the lowest order of the Green colors for some pixel for judging image rgb signal is the minimum of 0, Blue colors
When position is 1, it is determined that the rgb value for being sent to corresponding pixel points on LCD is corresponding with pixel on LCD in video image RGB signals
Pixel rgb value and image rgb signal in pixel corresponding with pixel on LCD rgb value weighted value, i.e., it is final
Pixel corresponding to LCD is upper is translucent display (mixed display).
Because the lowest order of Green colors and the lowest order of Bule colors include 0 and 1 two kind of situation, they can be combined into
10th, 11,00,01 4 kind of pattern, therefore in addition to the transfer mode of pixel property corresponding to above-mentioned decision condition, can be with root
Factually border is it needs to be determined which type of pixel property is each pattern correspond to, e.g.：When the lowest order of Green colors is 0, send
Rgb value to corresponding pixel points on LCD is the rgb value of pixel corresponding with pixel on LCD in video image rgb signal；
When it is 1 that the lowest order of the Green colors for some pixel for judging image rgb signal, which is the lowest order of 1, Blue colors, it is determined that hair
The rgb value for giving corresponding pixel points on LCD is the rgb value of pixel corresponding with pixel on LCD in image rgb signal；When
When to judge the lowest orders of the Green colors of some pixel of image rgb signal for the lowest order of 1, Blue colors be 0, it is determined that sending
Rgb value to corresponding pixel points on LCD is the RGB values of pixel corresponding with pixel on LCD in video image rgb signal
With the weighted value of the rgb value of pixel corresponding with pixel on LCD in image rgb signal；Other corresponded manners repeat no more.
S4, the rgb value for each pixel for being sent to LCD is exported together with LCD control signals and shows and connects to LCD
Mouthful, to be shown by LCD.
As shown in Figure 2, this patent further discloses the device of compatible video capability and image-text video mixed display,
Including MCU1 and field programmable gate array 3, the MCU1 includes being used to connect LCD display interfaces or the field-programmable
The selection resistance 2 of gate array 3, the field programmable gate array 3 can obtain real time video signals, and it includes being used to connect LCD
The interface of display interface and above-mentioned picture and text and real-time video mixed display system.
Due to can by selecting resistance 2 by MCU and LCD or field programmable gate array (FPGA) 3, when MCU1 with
During field programmable gate array (FPGA) 3, you can connect video by field programmable gate array (FPGA) 3 and gather dress in real time
Put with LCD display interfaces, so as to realize selection that screen function whether there is, the rotation just being whether there is because video capability can be realized, ability
The MCU1, selection resistance 2, field programmable gate array 3 are integrated in one piece of pcb board 4 to improve the integrated level of equipment and work(
Can property.
Further, as shown in Figure 2, this patent further discloses compatible video capability and image-text video mixed display system
System, the device of above-mentioned compatible video capability and image-text video mixed display, the compatible video capability and image-text video
The device of mixed display is connected with LCD display interfaces 6 and video acquisition device 5, wherein the video acquisition device 5 includes shooting
First 51 and the video AD conversion chip 52 of the BT656 formatted datas for camera signals to be converted into 54M clocks, it is described to regard
Frequency AD conversion chip 52 connects the field programmable gate array 3.
When needing video rgb signal and image rgb signal carrying out mixed display, the FPGA is according to above-mentioned mixing
Display methods is shown.
When need not by video rgb signal and with image rgb signal carry out mixed display when, the FPGA will directly be regarded
LCD display interfaces are sent to after the parsing of frequency rgb signal together with LCD control signals to be shown.
The present invention still has numerous embodiments, all technical sides formed using equivalents or equivalent transformation
Case, it is within the scope of the present invention.
Claims (10)
1. picture and text and real-time video mixed display method, it is characterised in that：Comprise the following steps：
S1, receive LCD control signals, the image rgb signal at least formed by icon, word, background combination and real-time video letter
Number；
S2, real time video signals are decoded and are integrated into the video rgb signal of clock same with LCD clock signal；
S3, using the clock of the LCD control signals as driving source by designated frame video rgb signal and corresponding two field picture RGB letters
Number mixed, it comprises at least following steps
S31, after video rgb signal is parsed, combine to be formed by the video of operation amplifier and multichannel and matched with LCD resolution
Video image rgb signal；
S32, the pixel value of each pixel by judging image rgb signal, to determine to be sent to LCD each pixel
Rgb value is the rgb value of video image rgb signal corresponding pixel points, or the rgb value of image rgb signal corresponding pixel points, or
The rgb value of both weighted calculation；
S4, the rgb value for each pixel for being sent to LCD is exported together with LCD control signals and gives LCD display interfaces.
2. picture and text according to claim 1 and real-time video mixed display method, it is characterised in that：Described image RGB believes
Number drawn and to be formed by GUI application functions, it includes one group of pixel with the pixel Point matching of the LCD, and described image RGB
The color value of each pixel of signal meets that the value of Green colors is | the value of 0x01 or Green colors is ＆0xFE or Bule colors
It is worth and is | 0x01.
3. picture and text according to claim 1 and real-time video mixed display method, it is characterised in that：The real-time video letter
Number gathered by camera, and the data of BT656 forms are converted to by video AD conversion chip.
4. picture and text according to claim 2 and real-time video mixed display method, it is characterised in that：The S32 steps are extremely
Include following process less：
S321, the lowest order of the Green colors of each pixel of image rgb signal and the lowest order of Blue colors are judged according to sequential
Value；
S322, when some pixel for judging image rgb signal Green colors lowest order for 1 when, it is corresponding, it is determined that send
Rgb value to corresponding pixel points on LCD is the rgb value of pixel corresponding with pixel on LCD in video image rgb signal；
S323, when the lowest order of the Green colors for some pixel for judging image rgb signal for the lowest order of 0, Blue colors is 0
When, it is determined that the rgb value for being sent to corresponding pixel points on LCD is pixel corresponding with pixel on LCD in image rgb signal
Rgb value；
S324, when the lowest order of the Green colors for some pixel for judging image rgb signal for the lowest order of 0, Blue colors is 1
When, it is determined that the rgb value for being sent to corresponding pixel points on LCD is pixel corresponding with pixel on LCD in video image rgb signal
The weighted value of the rgb value of pixel corresponding with pixel on LCD in the rgb value and image rgb signal of point.
5. picture and text and real-time video mixed display system, it is characterised in that：Including
Information acquisition module, for receiving LCD control signals, the image RGB at least formed by icon, word, background combination believes
Number and real time video signals；
Video decoding module, for being decoded real time video signals and being integrated into the video of clock same with LCD clock signal
Rgb signal；
Mixing module, for using the clock of the LCD control signals as driving source by designated frame video rgb signal and corresponding frame
Image rgb signal is mixed, and it includes
Video rgb signal decoding unit, after video rgb signal is parsed, by the video group of operation amplifier and multichannel
Close the video image rgb signal for being formed and being matched with LCD resolution；
Judging unit, for the pixel value of each pixel by judging image rgb signal, to determine to be sent to the every of LCD
The rgb value of individual pixel is the rgb value of video image rgb signal corresponding pixel points, or image rgb signal corresponding pixel points
Rgb value, or the rgb value of both weighted calculation；
Signal output module, for by the rgb value for being sent to LCD each pixel exported together with LCD control signals to
LCD display interfaces.
6. picture and text according to claim 5 and real-time video mixed display system, it is characterised in that：The judging unit bag
Include
Judgment sub-unit, the lowest order and Blue of the Green colors of each pixel for judging image rgb signal according to sequential
The value of the lowest order of color；
Final pixel value acquiring unit, is used for
When some pixel for judging image rgb signal Green colors lowest order for 1 when, correspond to picture it is determined that being sent on LCD
The rgb value of vegetarian refreshments is the rgb value of pixel corresponding with pixel on LCD in video image rgb signal；
When it is 0 that the lowest order of the Green colors for some pixel for judging image rgb signal, which is the lowest order of 0, Blue colors, really
Surely the rgb value for being sent to corresponding pixel points on LCD is the RGB of pixel corresponding with pixel on LCD in image rgb signal
Value；
When it is 1 that the lowest order of the Green colors for some pixel for judging image rgb signal, which is the lowest order of 0, Blue colors, really
Surely the rgb value for being sent to corresponding pixel points on LCD is pixel corresponding with pixel on LCD in video image rgb signal
The weighted value of the rgb value of pixel corresponding with pixel on LCD in rgb value and image rgb signal.
7. the device of compatible video capability and image-text video mixed display, it is characterised in that：It can be compiled including MCU (1) and scene
Journey gate array (3), the MCU (1) include being used for the selection for connecting LCD display interfaces or the field programmable gate array (3)
Resistance (2), the field programmable gate array (3) can obtain real time video signals, and it includes being used to connect LCD display interfaces
Interface and any described picture and text of claim 5 or 6 and real-time video mixed display system.
8. the device of compatible video capability according to claim 7 and image-text video mixed display, it is characterised in that：Institute
MCU (1), selection resistance (2), field programmable gate array (3) is stated to be integrated on one piece of pcb board (4).
9. compatible video capability and image-text video mixed display system, it is characterised in that：Including described in claim 7 or 8
The device of compatible video capability and image-text video mixed display, the compatible video capability and image-text video mixed display
Device is connected with LCD display interfaces (6) and video acquisition device (5).
10. compatible video capability according to claim 9 and image-text video mixed display system, it is characterised in that：Institute
Stating video acquisition device (5) includes camera (51) and the video for camera signals to be converted into BT656 formatted datas
AD conversion chip (52), the video AD conversion chip (52) connect the field programmable gate array (3).
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| CN201711090052.2A CN107888844B (en) | 2017-11-08 | 2017-11-08 | Method and system for image-text and real-time video mixed display, and device and system compatible with video function and image-text video mixed display |
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