CN110519530A - Hardware based picture-in-picture display methods and device - Google Patents
Hardware based picture-in-picture display methods and device Download PDFInfo
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- CN110519530A CN110519530A CN201910512211.6A CN201910512211A CN110519530A CN 110519530 A CN110519530 A CN 110519530A CN 201910512211 A CN201910512211 A CN 201910512211A CN 110519530 A CN110519530 A CN 110519530A
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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
- H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
Abstract
The invention discloses hardware based picture-in-picture display methods and devices, are related to technical field of image processing.The method includes the steps: screen is divided into key frame region and picture-in-picture region；Whether the screen area division information that aforementioned display equipment is read with behavior unit determines in current line screen area to include picture-in-picture region；When judgement does not include, Pixel Information corresponding with current line in main picture image is read, receiving end is transferred to after image procossing；When judgement includes, reads in main picture image and current line is corresponding not by Pixel Information corresponding with current line in the Pixel Information of picture-in-picture region covering and pip image, then be transferred to receiving end after image procossing.When realizing picture-in-picture using the present invention, without saving to result images, picture-in-picture synthesis can be carried out to the image transmitted, reduce picture delay when picture-in-picture display.
Description
Technical field
The present invention relates to technical field of image processing more particularly to a kind of picture-in-picture display methods and devices.
Background technique
In display field, picture-in-picture function is often used.Picture-in-picture (Picture in Picture abbreviation PIP) is benefit
It is the function that contents producer cut-and-dried recovery time identical 2 image datas are carried out to synthesis display with digital technology
Energy.In simple terms, picture-in-picture is that some region on a main picture image synthesizes an other sub-screen image, ginseng
The region PIP as shown in Figure 1.The mode of image synthesis usually may include upper layer covering lower layer or Alpha's synthesis.
The implementation of traditional picture-in-picture, it usually needs in advance obtaining original image and picture-in-picture (and then original image and will draw
It draws and carries out upper layer covering lower layer or Alpha's synthesis, then the result images of generation (or composograph) are temporarily stored in and are set
In fixed memory, then the result images in aforementioned memory are shown by display equipment.Above-mentioned picture-in-picture displaying scheme
Have the disadvantage that: 1) result images can committed memory space；2) result images memory and display equipment is saved in read from memory
Take image all can committed memory bandwidth；3) it has to start to show after synthesis finishes, some delays can be generated；4) it carries out
The premise of synthesis is that original image and picture-in-picture have all had been prepared for, and data have been transmitted and stored, thus can not be right
Image just in transmission process is synthesized.
Summary of the invention
It is an object of the invention to: overcome the deficiencies of the prior art and provide a kind of hardware based picture-in-picture display side
Method and device, using the present invention realize picture-in-picture when, without being saved to result images, can to the image transmitted into
The synthesis of row picture-in-picture reduces picture delay when picture-in-picture display.
To realize above-mentioned target, the present invention provides the following technical scheme that
A kind of hardware based picture-in-picture display methods, comprising steps of generating the setting of equipment according to frame, display equipment will
Screen is divided into key frame region and picture-in-picture region；Letter is divided with the screen area that behavior unit reads aforementioned display equipment
Whether breath determines in current line screen area to include picture-in-picture region；Determine in the case where not including picture-in-picture region, reads master
Pixel Information corresponding with current line, is transferred to receiving end after image procossing in picture image；Determine to include picture-in-picture region
In the case where, read the Pixel Information not covered by picture-in-picture region corresponding with current line, Yi Jihua in main picture image
Middle picture Pixel Information corresponding with current line as in, then receiving end is transferred to after image procossing.
Further, the display equipment is display or television set with HDMI interface, by HDMI by the picture of every row
Element is from left to right transferred to receiving end and shows equipment.
Further, when the pixel of every row being from left to right transferred to receiving end, when picture-in-picture region is located at key frame region
When middle part, the image transmitting of main picture image left area is carried out first, then carries out pip image transmission, and pip image passes
It is switched to main picture image after the completion of defeated, carries out the image transmitting of main picture image right area.
Further, Pixel Information corresponding with current line in main picture image is read, reception is sent to after image procossing
The step of end includes:
The dimension information for acquiring main picture image is compared with the Output Size of display equipment；
Obtain the ratio value N of the size of main picture image and the Output Size of display equipment；
According to aforementioned N value, read the corresponding row Pixel Information of main picture image, to the row pixel of reading carry out reduce or
Synthesis a line is enlarged；
Row pixel after synthesis is transferred to receiving end after image converts.
Further, the Pixel Information not covered by picture-in-picture region corresponding with current line in main picture image is read,
And Pixel Information corresponding with current line in pip image, then the step of being sent to after image procossing receiving end include:
Acquire the dimension information of main picture image and the dimension information of pip image, by the two respectively with display equipment
Corresponding Output Size is compared；
The ratio value N of the size of acquisition main picture image and the corresponding Output Size of display equipment, the ruler of pip image
It is very little with display equipment corresponding Output Size ratio value M；
According to aforementioned N and M value, the corresponding row Pixel Information of main picture image is read, is contracted to the row pixel of reading
Small or amplifying operation synthesis a line, and the corresponding row Pixel Information of pip image is read, the row pixel of reading is carried out
Zoom in or out operation synthesis a line；
Row pixel after synthesis is transferred to receiving end after image converts.
Further, whether the picture-in-picture region is rectangle, determine in current line screen area to include picture-in-picture region
Step is,
Obtain coordinate of the picture-in-picture region in screen area；
Display equipment is sentenced according to size a line per treatment of output according to the coordinate of the rectangle position of aforementioned picture-in-picture
Whether disconnected current line passes through the rectangular area of the picture-in-picture；
By the picture-in-picture rectangular area when determine include picture-in-picture region.
Further, the picture-in-picture region is multiple, and the shape of the picture-in-picture region is rectangle or non-rectangle.
The present invention also provides a kind of hardware based picture-in-picture display device (comprise the following structure:
Frame generates equipment, to set the screen area division information comprising picture-in-picture；
Image processing equipment determines current line screen area for reading said display partition information with behavior unit
It whether include picture-in-picture region in domain；And determine do not include picture-in-picture region in the case where, read main picture image in work as
Move ahead corresponding Pixel Information, and receiving end is transferred to after image procossing and shows equipment；Determining the feelings comprising picture-in-picture region
Under condition, the Pixel Information not covered by picture-in-picture region corresponding with current line and picture-in-picture in main picture image are read
Pixel Information corresponding with current line in image, then be transferred to receiving end after image procossing and show equipment；
Equipment is shown, to include the figure in key frame region and picture-in-picture region according to the output of said display division information
Picture.
Further, the display equipment is display or television set with HDMI interface, by HDMI by the picture of every row
Element is from left to right transferred to receiving end and shows equipment.
Further, described image processing equipment further includes unit for scaling, to acquire the dimension information of main picture image
With the dimension information of pip image, the ratio value N and M of the two with the corresponding Output Size of display equipment, and root are successively obtained
Operation synthesis a line is zoomed in and out according to the corresponding N row Pixel Information that aforementioned N and M value reads main picture image respectively, reads picture
The corresponding M row Pixel Information of middle picture picture zooms in and out operation synthesis a line.
The present invention due to using the technology described above, compared with prior art, as an example, has the following advantages that and accumulates
Pole effect:, can be to transmitting without being saved to result images when realizing picture-in-picture using technical solution of the present invention
Image carry out picture-in-picture synthesis, reduce picture-in-picture display when picture delay.
Detailed description of the invention
Fig. 1 is picture-in-picture display example figure common in the art.
Fig. 2 is that screen provided in an embodiment of the present invention divides schematic diagram.
Fig. 3 is the coordinate system provided in an embodiment of the present invention established based on screen.
Fig. 4 is the schematic diagram provided in an embodiment of the present invention for reading and not including the Pixel Information of picture-in-picture region.
Fig. 5 is the schematic diagram provided in an embodiment of the present invention for reading the Pixel Information comprising picture-in-picture region.
Fig. 6 is the main picture image provided in an embodiment of the present invention comprising multiple picture-in-picture regions.
Screen 100；
Key frame region 110；
Picture-in-picture region 120；
Currently processed row 200.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to hardware based picture-in-picture display methods disclosed by the invention and device
It is described in further detail.It should be noted that the combination of technical characteristic or technical characteristic described in following embodiments is not
Should be considered as it is isolated, they can be combined with each other to reaching superior technique effect.In the attached of following embodiments
In figure, the identical label that each attached drawing occurs represents identical feature or component, can be apply to different embodiments.Therefore,
Once being defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing do not need that it is further discussed.
It should be noted that structure, ratio, size etc. depicted in this specification institute attached drawing, only to cooperate explanation
The revealed content of book is not limited to invent enforceable restriction item so that those skilled in the art understands and reads
Part, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the effect of invention can be generated and institute's energy
Under the purpose reached, it should all fall in the range of the revealed technology contents of invention can cover.Preferred implementation side of the invention
The range of formula includes other realization, wherein described or discussion the sequence can not be pressed, including is pressed according to related function
Basic mode simultaneously or in the opposite order, Lai Zhihang function, this should be by the skill of the embodiment of the present invention technical field
Art personnel are understood.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.Institute that is shown here and discussing
Have in example, any occurrence should be construed as merely illustratively, not as limitation.Therefore, exemplary embodiment
Other examples can have different values.
Embodiment
It is shown in Figure 1, a kind of hardware based picture-in-picture display methods is disclosed, comprising steps of
S100 (generates the setting of equipment according to frame, shows that screen is divided into key frame region and picture-in-picture region by equipment.
S200 (is read the screen area division information of aforementioned display equipment with behavior unit, determines current line screen area
In whether include picture-in-picture region.
S300 (determines in the case where not including picture-in-picture region, reads pixel corresponding with current line in main picture image
Information is transferred to receiving end after image procossing；
Determine corresponding with current line not by picture-in-picture in main picture image comprising reading in the case where picture-in-picture region
Pixel Information corresponding with current line in the Pixel Information and pip image of region overlay, then transmitted after image procossing
To receiving end.
In this implementation, the display equipment is based on display peripheral hardware driving, for example has HDMI (High Definition
Multimedia Interface high-definition media interface) interface display or television set.The display equipment is based on output
Row driving, such as HDMI regulation have to how long, start the transmission of next line.
The pixel of every row is from left to right transferred in receiving end display equipment from transmitting terminal by HDMI and is exported.A line passes
After the completion of defeated, after an of short duration pause, then next line is transmitted.Using scheme provided in this embodiment, as long as can be by
It is ready to need display image data according to the speed of display, so that it may in the case where no delay, realize picture-in-picture.
In the step S100, the setting of equipment is generated according to frame, shows that screen is divided into two regions by equipment, referring to
It include key frame region 110 (base map i.e. where picture-in-picture) and picture-in-picture area in the form that screen 100 exports shown in Fig. 2
Domain 120.
The darker regions are main picture area 110, and light areas is picture-in-picture region 120.The frame generates equipment
The component of content and/or effect can be shown with setting screen, display equipment is answered based on the command information output phase that frame generates equipment
Content and/or effect, display equipment be for frame generate device service.
By way of example and not limitation, for example frame generation equipment may include computer CPU (central processing unit) and operate in this
Game application (or game computer program) on computer, and show that equipment may include video card and screen, is set by display
The standby description (instruction) that frame is generated equipment is shown.
In the present embodiment, the picture-in-picture region 120 is preferably rectangle.
By way of example and not limitation, when picture-in-picture region is rectangle, can by acquire the angle steel joint of the rectangle come
Mark position of the picture-in-picture in screen.For example, it is shown in Figure 3, right angle is established as origin using the starting point in the screen upper left corner
Coordinate system, the position of the picture-in-picture can pass through upper left angular coordinate (0.2 (0.2) and bottom right angular coordinate (0.6 (0.7)
To mark.
(the screen area division information of aforementioned display equipment is read with behavior unit in the step S200.It is specific real
Shi Shi, hardware data line per treatment, and receiving end is sent by HDMI by these data.It is shown in Figure 4, in figure
Black line represents currently processed row 200.
Determine in current line screen area whether to include picture-in-picture region.When it is implemented, using picture-in-picture region as rectangle
For, determine that the step of whether including picture-in-picture region can be such that in current line screen area
Obtain coordinate of the picture-in-picture region in screen area；
Display equipment is sentenced according to size a line per treatment of output according to the coordinate of the rectangle position of aforementioned picture-in-picture
Whether disconnected current line passes through the rectangular area of the picture-in-picture；
By the picture-in-picture rectangular area when, it can determine include picture-in-picture region.
As an example, for example equipment is shown according to size 1920x1080 a line per treatment of output, further according to above
The rectangle position of picture-in-picture judges whether current line passes through the rectangular area of the picture-in-picture, determine when in row screen area whether
Include picture-in-picture region.
In the case where determining not including picture-in-picture region, the Pixel Information of the corresponding current line of main picture image is read,
Using possible scaling, transformation --- such as adjustment saturation degree, then receiving end is sent to by HDMI.
It is illustrated in conjunction with Fig. 4.When currently processed row 200 (black line) does not pass through picture-in-picture region 120, image is obtained
The mode of information exactly reads out the correspondence of main picture image one to multirow, i.e., reading main picture image in current line
Corresponding Pixel Information.
Preferably, further include following steps:
The dimension information for acquiring main picture image is compared with the Output Size of display equipment；
Obtain the ratio value N of the size of main picture image and the Output Size of display equipment；
According to aforementioned N value, read the corresponding row Pixel Information of main picture image, to the row pixel of reading carry out reduce or
Synthesis a line is enlarged；
Row pixel after synthesis is transferred to receiving end after image converts.
By way of example and not limitation, for example the size of main picture image is 3840x2160, shows that the Output Size of equipment is
1920x1080, N=2 will then read 2 row main picture image rows every time, by two row Pixel Informations scaling, 1/2 synthesis of reading
After a line, receiving end is sent to by HDMI.
In the case where determining comprising picture-in-picture region, read corresponding with current line not by picture in main picture image
Pixel Information corresponding with current line in the Pixel Information and pip image of region overlay is drawn, then is passed after image procossing
It is defeated to arrive receiving end.
It is illustrated in conjunction with Fig. 5.When currently processed row 200 (black line) passes through picture-in-picture region 120, display equipment can be first
The correspondence one of main picture image is read out to multirow, using possible scaling, transformation is sent to the receiving end HDMI；So
Afterwards, when current row is handled to picture-in-picture region, display equipment is read out from the correspondence one of pip image to multirow.
I.e. in the case where determining comprising picture-in-picture, the corresponding main picture image of current line is read not by picture-in-picture rectangle
Multirow is arrived to the one of multirow and the corresponding pip image of current line in the part one of region overlay, by possible scaling, becomes
It changes, is sent to the receiving end HDMI.It is switched to main picture image again after having handled picture-in-picture region to be handled, main picture image
Middle covered portionss can choose discarding to reduce resource occupation.
Preferably, further include following steps:
The Pixel Information not covered by picture-in-picture region corresponding with current line in main picture image is read, and in picture
It draws the Pixel Information corresponding with current line as in, then the step of being sent to after image procossing receiving end includes,
Acquire the dimension information of main picture image and the dimension information of pip image, by the two respectively with display equipment
Corresponding Output Size is compared；
The ratio value N of the size of acquisition main picture image and the corresponding Output Size of display equipment, the ruler of pip image
It is very little with display equipment corresponding Output Size ratio value M；
According to aforementioned N and M value, the corresponding row Pixel Information of main picture image is read, is contracted to the row pixel of reading
Small or amplifying operation synthesis a line, and the corresponding row Pixel Information of pip image is read, the row pixel of reading is carried out
Zoom in or out operation synthesis a line；
Row pixel after synthesis is transferred to receiving end after image converts.
By way of example and not limitation, for example the size of main picture image is 3840x2160, shows the output key frame of equipment
Picture size is 1920x1080；The size of pip image is 1920x1080, show the output picture-in-picture of equipment having a size of
640x360；Then N=2 (M=3；For picture-in-picture, 3 row pip image rows are read every time, and two row pixels of reading are believed
After 1/3 synthesis a line of breath scaling, receiving end is sent to by HDMI.
It should be noted that, although only illustrated in above-described embodiment carried out when display reduce processing mode (at this time N and
1) value of M is greater than, but those skilled in the art will be appreciated that, the N and M can also be the value less than 1, that is, can also be when showing
Enhanced processing.N=0.25 is calculated, i.e., main picture
Face needs to be amplified 4 times in display, then needs to read the corresponding 1 row Pixel Information of main picture image, to the row picture of reading
A line is synthesized after 4 times of element amplification.
In addition, the N that is calculated can also be non-integer, by way of example and not limitation, such as N=1.2, it needs to read
Corresponding row Pixel Information be N round up after number N1=2, that is, read main picture image corresponding 2 row Pixel Information,
A line is synthesized after scaling 1/1.2 to the row pixel of reading.
Shown in Figure 5 in the present embodiment, the picture-in-picture region 120 is preferably located at 110 middle part of key frame region,
In such cases, when currently processed row 200 (black line) passes through picture-in-picture region 120, main picture image left side area is carried out first
The image transmitting in domain, then pip image transmission is carried out, pip image is switched to main picture image after being transmitted, and is led
The image transmitting of picture image right area.
It is shown in Figure 6, it is another embodiment of the present embodiment, the picture-in-picture region 120 can be described to be multiple
The shape of picture-in-picture region 120 is rectangle or non-rectangle.The non-rectangular shape, by way of example and not limitation, such as can be with
For circle, ellipse, pentalpha, triangle and any other irregular close-shaped.
When key frame region includes multiple picture-in-picture regions, display methods and the method for including a picture-in-picture region
It is similar: to obtain coordinate position of each picture-in-picture region in key frame region, judged according to the coordinate position of picture-in-picture current
Whether whether row passes through the picture-in-picture region, therefore, it is determined that when including picture-in-picture region in row screen area.
In the case where determining not including picture-in-picture region, the Pixel Information of the corresponding current line of main picture image is read,
Using possible scaling, transformation --- such as adjustment saturation degree, then receiving end is sent to by HDMI.
In the case where determining comprising picture-in-picture region, read corresponding with current line not by picture in main picture image
Pixel Information corresponding with current line in the Pixel Information and pip image of region overlay is drawn, using possible scaling,
Transformation --- such as adjustment saturation degree, then receiving end is sent to by HDMI.
For the picture-in-picture region of non-rectangle (profile), it is preferred that the setting that equipment can be generated according to frame, by screen
Display area is divided into muti-piece, and generates a picture-in-picture according to display size and show mapping table.By way of example and not limitation, with
For showing dimensions as 1920x1080, then the table of above-mentioned mapping table is wide by 1920, high by 1080.The content of table can indicate each picture
The source of element: main picture image O, pip image A, pip image B or pip image C are come from.
By way of example and not limitation, the simplified picture-in-picture shows that mapping table can be such that
| O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O |
| O | O | O | A | A | A | O | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | A | A | A | A | A | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | A | A | A | O | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | O | O | O | O | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | O | O | O | O | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | O | O | C | O | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | C | C | C | C | C | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | O | C | C | C | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | C | O | O | O | C | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | O | O | O | O | O | O | O | O | O | O | O | B | B | B | B | O | O |
| O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O | O |
Another embodiment of the present invention additionally provides a kind of hardware based picture-in-picture display device.
Described device comprises the following structure:
Frame generates equipment, to set the screen area division information comprising picture-in-picture；
Image processing equipment determines current line screen area for reading said display partition information with behavior unit
It whether include picture-in-picture region in domain；And determine do not include picture-in-picture region in the case where, read main picture image in work as
Move ahead corresponding Pixel Information, and receiving end is transferred to after image procossing and shows equipment；Determining the feelings comprising picture-in-picture region
Under condition, the Pixel Information not covered by picture-in-picture region corresponding with current line and picture-in-picture in main picture image are read
Pixel Information corresponding with current line in image, then be transferred to receiving end after image procossing and show equipment；
Equipment is shown, to include the figure in key frame region and picture-in-picture region according to the output of said display division information
Picture.
In the present embodiment, the display equipment is based on display peripheral hardware driving, for example has HDMI (High Definition
Multimedia Interface high-definition media interface) interface display or television set.By HDMI by the pixel of every row
It is from left to right transferred in receiving end display equipment and exports from transmitting terminal.After a line is transmitted, by an of short duration pause
Afterwards, then next line is transmitted.Using scheme provided in this embodiment, as long as can be ready to need display figure according to the speed of display
As data, so that it may in the case where no delay, realize picture-in-picture.
It is the component that content and/or effect can be shown with setting screen that the frame, which generates equipment, and display equipment is produced based on frame
The command information of generating apparatus exports corresponding content and/or effect, and display equipment is to generate device service for frame.
By way of example and not limitation, for example frame generation equipment may include computer CPU (central processing unit) and operate in this
Game application (or game computer program) on computer, and show that equipment may include video card and screen, is set by display
The standby description (instruction) that frame is generated equipment is shown.
The picture-in-picture region 120 is preferably rectangle.
In another embodiment of the present embodiment, described image processing equipment can also include unit for scaling.
Unit for scaling successively obtains two to acquire the dimension information of main picture image and the dimension information of pip image
Person and show equipment corresponding Output Size ratio value N and M, and read according to aforementioned N and M value pair of main picture image respectively
The row Pixel Information answered zooms in and out operation synthesis a line, and the corresponding row Pixel Information for reading pip image zooms in and out behaviour
Make synthesis a line.
By way of example and not limitation, for example the size of main picture image is 3840x2160, shows the output key frame of equipment
Picture size is 1920x1080；The size of pip image is 1920x1080, show the output picture-in-picture of equipment having a size of
640x360 will then read 3 row pip image rows every time, after two row Pixel Informations scaling, 1/3 synthesis a line of reading,
Receiving end is sent to by HDMI.
Other technical characteristics are referring to the description in preceding embodiment, and details are not described herein.
It should be noted that device can also be other including usually finding in computing systems in the present invention
Component such as stores in memory and by the operating system of processor execution, queue management device, device driver, data
Library driver or one or more network protocols etc., belong to the prior art, details are not described herein.
In the above description, the disclosure is not intended to for its own to be limited to these aspects.But at this
Within the scope of the protection of goal of disclosure, each component can selectively and operatively be merged with arbitrary number.In addition,
As the term of " comprising ", " including " and " having " should default it is being interpreted as including property or open, rather than it is exclusive
Property or closure, unless it is explicitly defined as opposite meaning.All technologies, science and technology or otherwise term all meet
Meaning understood by one of ordinary skill in the art, unless it is defined as opposite meaning.The public term found in dictionary is answered
It is not idealized very much or is impractically explained very much when under the background in the relevant technologies document, unless present disclosure is clearly limited
Determine at such.Any change, the modification that the those of ordinary skill in field of the present invention does according to the disclosure above content, belong to right
The protection scope of claim.
Claims (10)
1. a kind of hardware based picture-in-picture display methods, it is characterised in that comprising steps of
The setting of equipment is generated according to frame, shows that screen is divided into key frame region and picture-in-picture region by equipment；
With behavior unit read it is aforementioned display equipment screen area division information, determine current line screen area in whether include
Picture-in-picture region；
Determine in the case where not including picture-in-picture region, Pixel Information corresponding with current line in main picture image is read, through scheming
As being transferred to receiving end after processing；Determine corresponding with current line in main picture image comprising reading in the case where picture-in-picture region
The Pixel Information not covered by picture-in-picture region and pip image in Pixel Information corresponding with current line, then pass through
Receiving end is transferred to after image procossing.
2. according to the method described in claim 1, it is characterized by: the display equipment be display with HDMI interface or
The pixel of every row is from left to right transferred to receiving end by HDMI and shows equipment by television set.
3. according to the method described in claim 2, it is characterized by: when the pixel of every row is from left to right transferred to receiving end,
When picture-in-picture region is located in the middle part of key frame region, the image transmitting of main picture image left area is carried out first, then is carried out
Pip image transmission, pip image are switched to main picture image after being transmitted, carry out main picture image right area
Image transmitting.
4. according to the method described in claim 1, it is characterized by: reading pixel letter corresponding with current line in main picture image
Breath, the step of receiving end is sent to after image procossing include,
The dimension information for acquiring main picture image is compared with the Output Size of display equipment；
Obtain the ratio value N of the size of main picture image and the Output Size of display equipment；
According to aforementioned N value, the corresponding row Pixel Information of main picture image is read, the row pixel of reading is zoomed in or out
Operation synthesis a line；
Row pixel after synthesis is transferred to receiving end after image converts.
5. according to the method described in claim 1, it is characterized by: read main picture image in it is corresponding with current line not by
Pixel Information corresponding with current line in the Pixel Information and pip image of picture-in-picture region covering, then through image procossing
After the step of being sent to receiving end include,
The dimension information of main picture image and the dimension information of pip image are acquired, the two is corresponding with display equipment respectively
Output Size is compared；
Obtain main picture image size with display equipment corresponding Output Size ratio value N, the size of pip image and
Show the ratio value M of the correspondence Output Size of equipment；
According to aforementioned N and M value, read the corresponding row Pixel Information of main picture image, to the row pixel of reading carry out reduce or
Synthesis a line is enlarged, and reads the corresponding row Pixel Information of pip image, the row pixel of reading is reduced
Or synthesis a line is enlarged；
Row pixel after synthesis is transferred to receiving end after image converts.
6. according to the method described in claim 1, it is characterized by: the picture-in-picture region is rectangle, judgement current line screen
The step of whether including picture-in-picture region in region is,
Obtain coordinate of the picture-in-picture region in screen area；
Equipment is shown according to size a line per treatment of output, according to the coordinate of the rectangle position of aforementioned picture-in-picture, judgement is worked as
It moves ahead and whether passes through the rectangular area of the picture-in-picture；
By the picture-in-picture rectangular area when determine include picture-in-picture region.
7. according to the method described in claim 1, it is characterized by: the picture-in-picture region is multiple, the picture-in-picture region
Shape be rectangle or non-rectangle.
8. a kind of hardware based picture-in-picture display device, characterized by comprising:
Frame generates equipment, to set the screen area division information comprising picture-in-picture；
Image processing equipment determines in current line screen area for reading said display partition information with behavior unit
It whether include picture-in-picture region；And determine do not include picture-in-picture region in the case where, read main picture image in current line
Corresponding Pixel Information is transferred to receiving end after image procossing and shows equipment；In the case where determining comprising picture-in-picture region,
It reads corresponding with current line not by the Pixel Information of picture-in-picture region covering and pip image in main picture image
Pixel Information corresponding with current line, then be transferred to receiving end after image procossing and show equipment；
Equipment is shown, to include the image in key frame region and picture-in-picture region according to the output of said display division information.
9. device according to claim 8, it is characterised in that: the display equipment be display with HDMI interface or
The pixel of every row is from left to right transferred to receiving end by HDMI and shows equipment by television set.
10. device according to claim 8, it is characterised in that: described image processing equipment further includes unit for scaling, is used
To acquire the dimension information of main picture image and the dimension information of pip image, it is corresponding with display equipment successively to obtain the two
The ratio value N and M of Output Size, and according to aforementioned N and M value read respectively the corresponding N row Pixel Information of main picture image into
Row zoom operations synthesize a line, and the corresponding M row Pixel Information for reading pip image zooms in and out operation synthesis a line.
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