CN109672840A - A kind of reverse image aspect ratio modification method and system - Google Patents

A kind of reverse image aspect ratio modification method and system Download PDF

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Publication number
CN109672840A
CN109672840A CN201811547650.2A CN201811547650A CN109672840A CN 109672840 A CN109672840 A CN 109672840A CN 201811547650 A CN201811547650 A CN 201811547650A CN 109672840 A CN109672840 A CN 109672840A
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China
Prior art keywords
onboard system
signal
camera signals
module
timing
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Granted
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CN201811547650.2A
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Chinese (zh)
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CN109672840B (en
Inventor
王振江
张江峰
马骥
来萌萌
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Honeycomb (wuhan) Microsystem Technology Co Ltd
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Honeycomb (wuhan) Microsystem Technology Co Ltd
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Publication of CN109672840A publication Critical patent/CN109672840A/en
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Classifications

    • 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
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle

Abstract

The invention proposes a kind of reverse image aspect ratio modification method and systems, method includes, the extension shelves signal of driver is identified by bus control unit, and camera signals and extension shelves signal are passed into onboard system according to shelves signal behavior is hung, onboard system starts timing according to shelves signal is hung, and judge whether vehicle body enters state of rolling backward, camera signals can be identified and be handled simultaneously, and adjust the display area of display screen, it can adapt to display screen, if hanging shelves signal in timing is still reverse gear, camera signals are then passed to display screen to show, if in timing, gear only passes through reverse gear, then portion's transmitting camera signals give display screen, method and system of the invention identifies the extension shelves information of vehicle, identification and display area are carried out to camera information in advance simultaneously Adjustment can effectively avoid the occurrence of display distortion the case where, improve user experience.

Description

A kind of reverse image aspect ratio modification method and system
Technical field
The present invention relates to onboard system technical fields more particularly to a kind of reversing to influence aspect ratio modification method and system.
Background technique
With popularizing for intelligent vehicle-mounted system, more and more onboard navigation systems have used vertical screen onboard system, that is, shield Curtain width is less than height.
Although the screen of onboard system is converted to longitudinal screen from traditional lateral screen, the camera of reverse image It is still lateral picture that picture, which is imaged,.It reverses gear when driver lights a fire into the car and hangs immediately, onboard system is still in starting at this time In the process, can not adapter tube camera display task, this will lead to camera signals and is shown in greatly through LVDS uniaxial direct tensile On screen, this results in the aspect ratio being shown on large screen abnormal, severely deformed.
Summary of the invention
In view of this, the invention proposes can be avoided under a kind of vertical screen environment of automobile, reverse image aspect ratio is abnormal to be fallen Vehicle image aspect ratio modification method and system.
The technical scheme of the present invention is realized as follows: the present invention provides a kind of reverse image aspect ratio modification method, Include the following steps:
Step 1: Vehicle Body Bus spreads out of astern signal to bus control unit first, bus control unit judgement with it is vehicle-mounted Whether system shakes hands for the first time, enters step two if not starting to shake hands for the first time, enters if having succeeded and having shaken hands for the first time Step 4；
Step 2: bus control unit starts to carry out trial of shaking hands with onboard system, repeats to shake hands if failure of shaking hands and taste Examination, enters step three if shaking hands successfully；
Step 3: bus control unit sends astern signal and camera signals to onboard system, onboard system according to Camera signals carry out active area setting and picture display amendment, and amendment finishes, and show camera signals；
Step 4: bus control unit sends astern signal and camera signals to onboard system, onboard system is received Astern signal and camera signals, onboard system keeps current picture, while onboard system carries out picture according to camera signals Display area setting and picture display amendment, and start timing, if timing terminates, onboard system persistently receives reversing letter Number, then the camera signals after amendment are shown immediately, if onboard system receives gear switch letter in timing Number, then still maintain onboard system current picture.
On the basis of above technical scheme, it is preferred that further include the bus Step 5: if onboard system restarts or shuts down Control unit stops transmission astern signal and camera signals to onboard system.
On the basis of above technical scheme, it is preferred that the onboard system carries out picture according to camera signals and shows The method of region setting includes that onboard system identifies camera signals resolution ratio, the length-width ratio of camera signals is calculated, with vehicle-mounted Length of the width of display screen as display area calculates width according to the length-width ratio of camera signals, to obtain picture Display area.
On the basis of above technical scheme, it is preferred that the timing is 1.5s.
The present invention also provides a kind of reverse image aspect ratio update the systems, including bus module, bus control module, reversing Photographing module, onboard system module and human-computer interaction module, the bus module are used for transmission vehicle gearing signal to total line traffic control Molding block, bus control module receive vehicle gearing signal and the camera signals from reversing camera module, bus marco mould Block sends vehicle gearing signal and camera signals to onboard system module, and onboard system module carries out vehicle gearing signal Identification, while onboard system module is modified processing to camera signals, and judges whether to believe the camera of correcting process Number send human-computer interaction module to, human-computer interaction module is for showing camera signals.
On the basis of above technical scheme, it is preferred that the vehicle gearing signal includes traveling shelves, parking position switch and reversing Shelves.
On the basis of above technical scheme, it is preferred that the onboard system module further includes timing submodule, described fixed When submodule be timed while receive vehicle backing car bumper signal, vehicle gearing signal is examined in timing It surveys, if vehicle gearing signal is reverse gear until timing terminates, the camera signals of correcting process is sent to man-machine Interactive module is then cancelled if in timing, vehicle gearing signal is converted to parking position switch or traveling shelves by reverse gear by camera Signal sends human-computer interaction module to.
On the basis of above technical scheme, it is preferred that the onboard system module further includes video mask submodule, if The BOB(beginning of block) timing of timing submodule, video mask submodule intercept camera signals, if timing submodule timing terminates, The stopping of video mask submodule intercepts camera signals.
On the basis of above technical scheme, it is preferred that the onboard system module further includes video frequency signal processing submodule Block, if the BOB(beginning of block) timing of timing submodule, video frequency signal processing submodule are used to carry out resolution ratio identification and resolution to vision signal The conversion of rate.
On the basis of above technical scheme, it is preferred that the human-computer interaction module further includes display amendment submodule, institute It states display amendment submodule and obtains the vision signal resolution information that video frequency signal processing submodule obtains, and believed according to resolution ratio Breath carries out the amendment of display area.
A kind of reverse image aspect ratio modification method of the invention and system have below compared with the existing technology beneficial to effect Fruit:
(1) reverse image aspect ratio modification method of the invention is by being monitored vehicle driving states, to control Whether vehicle shows reverse image, while method of the invention also carries out preparatory processing to the reverse image of vehicle, avoids down Vehicle image is not met with the size for controlling display screen in vehicle；
(2) reverse image aspect ratio update the system of the invention is handled reverse image using onboard system module, The size that can adapt to automobile display screen is prevented using bus control module connection bus module and onboard system module The starting of onboard system and the starting of Vehicle Body Bus are asynchronous, cause reverse image is unprocessed to be transferred to display picture.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is reverse image aspect ratio modification method flow chart of the invention；
Fig. 2 is reverse image aspect ratio update the system block diagram of the invention.
Specific embodiment
Below in conjunction with embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clearly and completely Description, it is clear that described embodiment is only some embodiments of the invention, rather than whole embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all Other embodiments shall fall within the protection scope of the present invention.
As shown in Figure 1, reverse image aspect ratio modification method of the invention comprising following steps:
Step 1: Vehicle Body Bus spreads out of astern signal to bus control unit first, bus control unit judgement with it is vehicle-mounted Whether system shakes hands for the first time, enters step two if not starting to shake hands for the first time, enters if having succeeded and having shaken hands for the first time Step 4；
Step 2: bus control unit starts to carry out trial of shaking hands with onboard system, repeats to shake hands if failure of shaking hands and taste Examination, enters step three if shaking hands successfully；
Step 3: bus control unit sends astern signal and camera signals to onboard system, onboard system according to Camera signals carry out active area setting and picture display amendment, and amendment finishes, and show camera signals；
Step 4: bus control unit sends astern signal and camera signals to onboard system, onboard system is received Astern signal and camera signals, onboard system keeps current picture, while onboard system carries out picture according to camera signals Display area setting and picture display amendment, and start timing, if timing terminates, onboard system persistently receives reversing letter Number, then the camera signals after amendment are shown immediately, if onboard system receives gear switch letter in timing Number, then still maintain onboard system current picture.
In embodiment of above, if vehicle body is in rigid starting state, bus control module can with onboard system module into Capable confirmation of shaking hands, if it is unsuccessful to shake hands, reverse image information rests on bus control module layer, does not enter onboard system, if Confirmation of shaking hands finishes, and backup camera signal is then transferred to onboard system module by bus control system, and onboard system module is logical Setting screen display area is crossed to achieve the purpose that amendment display image, avoids image unprocessed, in active area The image for forming deformation, influences user's perception.
If vehicle body has been in starting state, bus control module also necessarily has already passed through with onboard system module and shakes hands Confirmation sends the signal that reverses gear to total line traffic control immediately if Vehicle Body Bus module at this time receives when vehicle hangs the signal to reverse gear Molding block, bus control module will then reverse gear signal and vehicle backing camera signals send onboard system module to, vehicle-mounted System opening timing device immediately, while backup camera signal is identified, and viewing area is arranged according to the signal of camera The size in domain, onboard system module can carry out mask to camera signals in the timing of timer, if in timing Interior, vehicle receives the parking gear signal always netted from vehicle body again, then stops timer, and onboard system stops receiving camera shooting Head signal, if timer timing terminates, onboard system still one directly receives reverse gear signal, then stops to camera signals Mask, and camera signals are transmitted to display area, it is shown according to the display area size of setting.
It in a specific embodiment, further include Step 5: bus control unit stops if onboard system restarts or shuts down Astern signal and camera signals are transmitted to onboard system.
In a specific embodiment, the onboard system carries out the side of active area setting according to camera signals Method includes that onboard system identifies camera signals resolution ratio, the length-width ratio of camera signals is calculated, with the width of vehicle-carrying display screen As the length of display area, width is calculated according to the length-width ratio of camera signals, to obtain active area.
Embodiment of above identifies camera signals and is calculated, and carries out to the real region of vehicle-carrying display screen It calculates, for vertical screen display screen, if carrying out picture filling according to conventional display scale, display picture can be elongated, made At distortion, preparatory division processing is carried out to display area using embodiment of above, it is possible to prevente effectively from distortion.
In a specific embodiment, timing 1.5s.
As shown in Fig. 2, reverse image aspect ratio update the system of the invention, including bus module, bus control module, fall Vehicle photographing module, onboard system module and human-computer interaction module, the bus module are used for transmission vehicle gearing signal to bus Control module, bus control module receive vehicle gearing signal and the camera signals from reversing camera module, bus marco Module sends vehicle gearing signal and camera signals to onboard system module, onboard system module to vehicle gearing signal into Row identification, while onboard system module is modified processing to camera signals, and judges whether the camera of correcting process Signal sends human-computer interaction module to, and human-computer interaction module is for showing camera signals.
In a specific embodiment, vehicle gearing signal includes traveling shelves, parking position switch and reverse gear.
In a specific embodiment, onboard system module further includes timing submodule, and the timing submodule receives It is timed while vehicle backing car bumper signal, vehicle gearing signal is detected in timing, if when timing Between terminate, vehicle gearing signal is reverse gear, send the camera signals of correcting process to human-computer interaction module, if timing In time, vehicle gearing signal is converted to parking position switch or traveling shelves by reverse gear, then cancellation sends camera signals to man-machine Interactive module.
In embodiment of above, bus module is monitored the gear shift behavior of motor vehicle operators, passes through when driver shifts gears It crosses reverse gear and enters parking position switch, then can be determined that driver needs to stop, although finally stopping at this time by reverse gear Gear, there is no need to carry out the transmission of camera signals；If eventually entering into traveling shelves, to advance, without camera signals；If It is constantly in reverse gear in timing, then determines that driver is carrying out car backing operation, therefore camera signals are transmitted To human-computer interaction module.
Embodiment of above judges the driving behavior of driver can effectively avoid camera signals frequent transmission With interruption, enhance the driving experience of driver.
In a specific embodiment, the onboard system module further includes video mask submodule, if timing submodule Starting timing, video mask submodule intercepts camera signals, if timing submodule timing terminates, video mask Module stopping intercepts camera signals.
In a specific embodiment, the onboard system module further includes video frequency signal processing submodule, if timing Module starts timing, and video frequency signal processing submodule is used to carry out vision signal the conversion of resolution ratio identification and resolution ratio.
In a specific embodiment, the human-computer interaction module further includes display amendment submodule, the display amendment Submodule obtains the vision signal resolution information that video frequency signal processing submodule obtains, and is shown according to resolution information The amendment in region.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of reverse image aspect ratio modification method, which comprises the following steps:
Step 1: Vehicle Body Bus spreads out of astern signal to bus control unit, bus control unit judgement and onboard system first Whether shake hands for the first time, enter step two if not starting to shake hands for the first time, is entered step if having succeeded and having shaken hands for the first time Four；
Step 2: bus control unit starts to carry out trial of shaking hands with onboard system, trial of shaking hands is repeated if failure of shaking hands, if It shakes hands and successfully then enters step three；
Step 3: bus control unit sends astern signal and camera signals to onboard system, onboard system is according to camera shooting Head signal carries out active area setting and picture display amendment, and amendment finishes, and shows camera signals；
Step 4: bus control unit sends astern signal and camera signals to onboard system, onboard system receives reversing Signal and camera signals, onboard system keeps current picture, while onboard system carries out picture according to camera signals and shows Region setting and picture display amendment, and start timing, if timing terminates, onboard system persistently receives astern signal, then The camera signals after amendment are shown immediately, if onboard system receives gear switch signal, then still in timing So keep onboard system current picture.
2. reverse image aspect ratio modification method as described in claim 1, which is characterized in that further include Step 5: if vehicle-mounted System reboot or shutdown, bus control unit stop transmission astern signal and camera signals to onboard system.
3. reverse image aspect ratio modification method as described in claim 1, which is characterized in that the onboard system is according to camera shooting The method that head signal carries out active area setting includes that onboard system identifies camera signals resolution ratio, calculates camera The length-width ratio of signal is calculated using the width of vehicle-carrying display screen as the length of display area according to the length-width ratio of camera signals Width out, to obtain active area.
4. reverse image aspect ratio modification method as described in claim 1, which is characterized in that the timing is 1.5s.
5. a kind of reverse image aspect ratio update the system, which is characterized in that taken the photograph including bus module, bus control module, reversing As module, onboard system module and human-computer interaction module, the bus module are used for transmission vehicle gearing signal to bus marco Module, bus control module receive vehicle gearing signal and the camera signals from reversing camera module, bus control module Send vehicle gearing signal and camera signals to onboard system module, onboard system module knows vehicle gearing signal Not, while onboard system module is modified processing to camera signals, and judges whether the camera signals of correcting process Send human-computer interaction module to, human-computer interaction module is for showing camera signals.
6. a kind of reverse image aspect ratio update the system as claimed in claim 5, which is characterized in that the vehicle gearing signal Including traveling shelves, parking position switch and reverse gear.
7. a kind of reverse image aspect ratio update the system as claimed in claim 6, which is characterized in that the onboard system module It further include timing submodule, the timing submodule is timed while receiving vehicle backing car bumper signal, in timing It is interior that vehicle gearing signal is detected, if until timing terminates, vehicle gearing signal is reverse gear, by correcting process Camera signals send human-computer interaction module to, if in timing, vehicle gearing signal is converted to parking position switch by reverse gear Or traveling shelves, then cancel and sends camera signals to human-computer interaction module.
8. a kind of reverse image aspect ratio update the system as claimed in claim 7, which is characterized in that the onboard system module It further include video mask submodule, if the BOB(beginning of block) timing of timing submodule, video mask submodule intercept camera signals, If timing submodule timing terminates, the stopping of video mask submodule intercepts camera signals.
9. a kind of reverse image aspect ratio update the system as claimed in claim 8, which is characterized in that the onboard system module It further include video frequency signal processing submodule, if the BOB(beginning of block) timing of timing submodule, video frequency signal processing submodule are used to believe video Number carry out resolution ratio identification and resolution ratio conversion.
10. a kind of reverse image aspect ratio update the system as claimed in claim 9, which is characterized in that the human-computer interaction mould Block further includes display amendment submodule, and the display amendment submodule obtains the vision signal that video frequency signal processing submodule obtains Resolution information, and according to the amendment of resolution information progress display area.
CN201811547650.2A 2018-12-17 2018-12-17 Method and system for correcting aspect ratio of reverse image Active CN109672840B (en)

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