CN201758429U - Vehicular rearview panorama system based on digital signal processor - Google Patents

Vehicular rearview panorama system based on digital signal processor Download PDF

Info

Publication number
CN201758429U
CN201758429U CN 201020293566 CN201020293566U CN201758429U CN 201758429 U CN201758429 U CN 201758429U CN 201020293566 CN201020293566 CN 201020293566 CN 201020293566 U CN201020293566 U CN 201020293566U CN 201758429 U CN201758429 U CN 201758429U
Authority
CN
China
Prior art keywords
video
camera
control device
digital signal
signal processor
Prior art date
Application number
CN 201020293566
Other languages
Chinese (zh)
Inventor
胡涛
王红丹
Original Assignee
西安理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西安理工大学 filed Critical 西安理工大学
Priority to CN 201020293566 priority Critical patent/CN201758429U/en
Application granted granted Critical
Publication of CN201758429U publication Critical patent/CN201758429U/en

Links

Abstract

The utility model discloses a vehicular rearview panorama system based on a digital signal processor. The vehicular rearview panorama system comprises a camera device, a control device and a display device which are connected in sequence, the control device comprises a video input port, a video decoding chip, a TMS 320 DM 642 core processor, a video encoding chip and a video output port which are connected sequentially, the camera device is connected with the control device via the video input port, and the video output port in the control device is connected with the display device. The vehicular rearview panorama system adopts the digital signal processor to realize quick image mosaic of video frame images acquired by three cameras and eliminate overlapping regions so as to obtain panoramic frame image after mosaic and transmit the image to an LCD display to be displayed at real time. The panoramic frame image covers all scenes of the rear side of a vehicle, thereby eliminating rearview blind area of the vehicle, being more favorable for expanding visual field of drivers when compared with the mode of utilizing a single camera, and assisting drivers to obverse more visually when compared with the modes of utilizing wide-angle lenses and split display.

Description

Automobile-used backsight panorama system based on digital signal processor

Technical field

The utility model belongs to the vehicle driving safety equipment technical field, is specifically related to a kind of automobile-used backsight panorama system based on digital signal processor.

Background technology

Along with traffic safety problem becomes increasingly conspicuous, the automotive safety problem is subjected to extensive concern, and the car steering safety system just becomes the most important thing that reduces road traffic accident.Vehicle right and left both sides and rear area very easily form the vision blind area, and running car is caused potential danger.The viewing area of automotive rear-view is subjected to the influence of the outside rear-view mirror angle of visual field very big, and very easily two dihedrals become visual dead angle about the tailstock, when parking very easily scratching to flower bed, the step in roadside.Simultaneously, because inside-automobile rear mirror is subjected to the influence of automobile rear seat windscreen size and automobile trunk height also can form the vision blind area of certain altitude at automobile tail.Can avoid blind spot region effectively by automobile blind area ancillary technique.Automobile blind area ancillary technique commonly used mainly contains: radar for backing car technology and automotive rear-view technology.

Present automotive rear-view system has based on single camera and multi-cam.Back-sight visual system based on single camera is divided into common lens and wide-angle lens, the visual field that common lens obtains is less, can't satisfy the demand of driver to the visual field, rear, though the back-sight visual system based on wide-angle lens can obtain bigger visual field, the picture distortion meeting that wide-angle lens causes influences the judgement of driver to rear information.The at present main split screen Display Technique that adopts of multi-cam back-sight visual system shows the different windows of video image on screen of each camera collection simultaneously, is unfavorable for that the driver observes the rear scene intuitively.

Summary of the invention

The purpose of this utility model provides a kind of automobile-used backsight panorama system based on digital signal processor, solve the backsight blind zone problem that the driver produces when driving, avoid wide-angle lens generation distortion and split screen to show the influence that the driver is judged, be convenient to vehicle, pedestrian and barrier that the driver observes the rear more intuitively, take measures timely, ensure driving safety.

The technical scheme that the utility model adopted is, a kind of automobile-used backsight panorama system based on digital signal processor, comprise the camera head, control device and the display unit that connect successively, control device comprises video inputs mouth, video decoding chip, TMS320DM642 core processor, video coding chip and the video-out port that connects successively, camera head is connected with control device by the video inputs mouth, and the video-out port in the control device is connected with display unit.

Characteristics of the present utility model also are,

Camera head wherein comprises camera a, camera b and camera c.

Display unit wherein adopts LCD display.

The beneficial effects of the utility model are, by digital signal processor the video frame images of three camera collections are carried out image splicing fast, eliminate the overlapping region, obtain spliced panoramic frame image, and the real-time LCD display that is transferred to show.This panoramic frame image has covered all scenes at automobile rear, has eliminated the automotive rear-view blind area, and the visual field that is more conducive to the driver with respect to single camera is expanded, and shows that with respect to wide-angle lens and split screen driver's observation is more directly perceived.

Description of drawings

Fig. 1 is the utility model based on the structural representation of the automobile-used backsight panorama system of digital signal processor;

Fig. 2 is the utility model based on a kind of user mode schematic diagram of the automobile-used backsight panorama system of digital signal processor.

Among the figure, 1. camera head, 2. control device, 3. display unit, 4. camera a, 5. camera b, 6. camera c, 7. video inputs mouth, 8. video decoding chip, 9.TMS320DM642 core processor, 10. video coding chip, 11. video-out ports.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

The utility model is based on the structure of the automobile-used backsight panorama system of digital signal processor, as shown in Figure 1, comprise the camera head 1 that connects successively, control device 2 and display unit 3, camera head 1 comprises camera a4, camera b5 and camera c6, control device 2 comprises the video inputs mouth 7 that connects successively, video decoding chip 8, TMS320DM642 core processor 9, video coding chip 10 and video-out port 11, display unit 3 adopts LCD display, described camera a4, camera b5 and camera c6 are connected with control device 2 by video inputs mouth 7, and the video-out port 11 in the control device 2 is connected with display unit 3.Wherein,

Camera head 1 is installed in the automobile rear bumper place, is used for the scene at automobile rear is taken; Comprise camera a4, camera b5 and camera c6, be installed in high order end, middle, the low order end of the rear bumper position of vehicle afterbody respectively, and remain on same horizontal level, the image that two adjacent cameras are taken should guarantee certain overlapping region.

Control device 2 is used to connect camera head 1 and display unit 3, by digital signal processor the automobile rear information of multi-cam collection is carried out the image splicing and handles, and spliced panoramic frame image is transferred to display unit 3; Control device 2 is made of dsp board, and dsp board is core processor with TMS320DM642, by video port, provides the seamless interfacing with ordinary video input and output decoder, encoder, connects camera head 1 and display unit 3.Possess 64 external memory interface EMIF, can with multiple memory such as the seamless binding of flash memory FLASH, realize that the backsight panoramic picture shows that needed merging algorithm for images is solidificated among the flash memory FLASH by the jtag interface programming.

TMS320DM642 core processor 9 has three video port VP0, VP1, VP2, seamless interfacing with ordinary video input and output decoder, encoder is provided, camera a4, camera b5 connect A channel and the B passage of VP0 respectively by the video inputs mouth 7 of dsp board, camera c6 connects VP1 by the video inputs mouth 7 of dsp board; LCD display connects VP2 by the video-out port 11 of dsp board.Video image panorama stitching algorithm is solidificated among the flash memory FLASH by the programming of JTAG standard testing interface, and the video of three road camera collections obtains automotive rear-view panoramic frame image through the processing of merging algorithm for images.Spliced panoramic frame image is presented on the LCD display in the car by video-out port 11VP2, and LCD display is installed in the position that driver's observation is convenient in driver's cabin inside, also can be directly installed on the inside rear-view mirror of automobile.

Display unit 3 is used for showing the panoramic frame image through the automobile rear of digital signal processor merging algorithm for images generation.Adopt LCD display, be installed in the position that driver's observation is convenient in driver's cabin inside, also can be directly installed on the inside-automobile rear mirror.

The course of work of the present utility model is: three cameras are used for taking the driving environment of car left back, dead astern, right back respectively.Three cameras are connected with the video inputs mouth of digital signal processor, the message transmission of the real-time rear view of vehicle that three road cameras are filmed is to digital signal processor, digital signal processor carries out the image splicing by the merging algorithm for images fast of programming in flash memory FLASH to the image of gathering three road videos that come, eliminate the overlapping region, spliced panoramic frame image is transferred to LCD display by video-out port, show by the LCD display that is installed in the driver's cabin, thereby the driver can the Direct observation display understands the panorama situation of rear view of vehicle.

The utility model camera installation site as shown in Figure 2.Camera a4, camera b5 and camera c6 are installed in left rear corner, middle, the right back angle of automobile tail bumper respectively, camera should guarantee when installing that the image that per two adjacent cameras are taken has certain overlapping region, shown in lattice portion among Fig. 2 is divided, and keep being placed on same horizontal level so that carry out image splicing processing.The scene that camera a4, camera b5 and camera c6 take automobile left back, dead astern, right back respectively.

In the present embodiment, DSP needs the 5V operating voltage, and camera and display screen need the 12V operating voltage.The operating voltage of general car is two kinds of 12V or 24V, and the truck that power is bigger is 48V, is powered by direct current.For operating voltage is the automobile of 12V, can be directly used in the checkout gear power supply.For the automobile of other situations, adopt universal power adapter to be converted to the direct current of 12V, be used for the checkout gear power supply then.In control device 2, the 12V operating voltage is respectively to the power supply of camera and LCD display, adopts the DC/DC power transfer module that the operating voltage of 12V is converted to the operating voltage of 5V simultaneously, and the 5V operating voltage that obtains is powered to DSP.

Claims (3)

1. automobile-used backsight panorama system based on digital signal processor, it is characterized in that, comprise the camera head (1) that connects successively, control device (2) and display unit (3), control device (2) comprises the video inputs mouth (7) that connects successively, video decoding chip (8), TMS320DM642 core processor (9), video coding chip (10) and video-out port (11), described camera head (1) is connected with control device (2) by video inputs mouth (7), and the video-out port (11) in the control device (2) is connected with display unit (3).
2. the automobile-used backsight panorama system based on digital signal processor according to claim 1 is characterized in that described camera head (1) comprises camera a(4), camera b(5) and camera c(6).
3. the automobile-used backsight panorama system based on digital signal processor according to claim 1 is characterized in that described display unit (3) adopts LCD display.
CN 201020293566 2010-08-17 2010-08-17 Vehicular rearview panorama system based on digital signal processor CN201758429U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020293566 CN201758429U (en) 2010-08-17 2010-08-17 Vehicular rearview panorama system based on digital signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020293566 CN201758429U (en) 2010-08-17 2010-08-17 Vehicular rearview panorama system based on digital signal processor

Publications (1)

Publication Number Publication Date
CN201758429U true CN201758429U (en) 2011-03-09

Family

ID=43645717

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020293566 CN201758429U (en) 2010-08-17 2010-08-17 Vehicular rearview panorama system based on digital signal processor

Country Status (1)

Country Link
CN (1) CN201758429U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611833A (en) * 2011-04-06 2012-07-25 世大光电(深圳)有限公司 Camera sharing processing structure
CN103369192A (en) * 2012-03-31 2013-10-23 深圳市振华微电子有限公司 Method and device for Full-hardware splicing of multichannel video images
WO2014056378A1 (en) * 2012-10-09 2014-04-17 Mediatek Inc. Data processing system for transmitting compressed display data over display interface
CN102611833B (en) * 2011-04-06 2016-12-14 世大光电(深圳)有限公司 Photographic head shares and processes structure

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611833A (en) * 2011-04-06 2012-07-25 世大光电(深圳)有限公司 Camera sharing processing structure
CN102611833B (en) * 2011-04-06 2016-12-14 世大光电(深圳)有限公司 Photographic head shares and processes structure
CN103369192A (en) * 2012-03-31 2013-10-23 深圳市振华微电子有限公司 Method and device for Full-hardware splicing of multichannel video images
US9466258B2 (en) 2012-10-09 2016-10-11 Mediatek Inc. Data processing apparatus with adaptive compression algorithm selection for data communication based on sensor input/display configuration over display interface and related data processing method
CN104704551A (en) * 2012-10-09 2015-06-10 联发科技股份有限公司 Data processing system for transmitting compressed display data over display interface
US9355613B2 (en) 2012-10-09 2016-05-31 Mediatek Inc. Data processing apparatus for transmitting/receiving compression-related indication information via display interface and related data processing method
WO2014056389A1 (en) * 2012-10-09 2014-04-17 Mediatek Inc. Data processing apparatus with adaptive compression algorithm selection based on visibility of compression artifacts for data communication over display interface and related data processing method
US9514705B2 (en) 2012-10-09 2016-12-06 Mediatek Inc. Data processing apparatus with adaptive compression algorithm selection based on visibility of compression artifacts for data communication over display interface and related data processing method
WO2014056378A1 (en) * 2012-10-09 2014-04-17 Mediatek Inc. Data processing system for transmitting compressed display data over display interface
US9633624B2 (en) 2012-10-09 2017-04-25 Mediatek Inc. Data processing apparatus for transmitting/receiving compression-related indication information via display interface and related data processing method
CN104704551B (en) * 2012-10-09 2017-06-30 联发科技股份有限公司 Data handling system
US9711109B2 (en) 2012-10-09 2017-07-18 Mediatek Inc. Data processing apparatus for transmitting/receiving compression-related indication information via display interface and related data processing method
US9773469B2 (en) 2012-10-09 2017-09-26 Mediatek Inc. Data processing apparatus with adaptive compression/de-compression algorithm selection for data communication over display interface and related data processing method

Similar Documents

Publication Publication Date Title
US20190313049A1 (en) Display system and method
JP5819455B2 (en) Display device for visually drawing the field of view of commercial vehicles
JP4766841B2 (en) Camera device and vehicle periphery monitoring device mounted on vehicle
JP6404921B2 (en) Method and apparatus for regenerating the lateral and / or rear surrounding area of a vehicle
CN102729902B (en) Embedded panoramic display device and method served for automobile safe driving
WO2014068856A1 (en) Image generation device and image generation program product
JP5194679B2 (en) Vehicle periphery monitoring device and video display method
JP3372944B2 (en) Monitoring system
JP5099451B2 (en) Vehicle periphery confirmation device
US6847873B1 (en) Driver information feedback and display system
JP3652678B2 (en) Vehicle surrounding monitoring apparatus and adjustment method thereof
JP3753681B2 (en) Monitoring system
US7190259B2 (en) Surrounding surveillance apparatus and mobile body
WO2011016368A1 (en) Vehicle peripheral image generation device
JP2005110202A (en) Camera apparatus and apparatus for monitoring vehicle periphery
CN104321224B (en) There is the motor vehicle of camera supervised system
CN201712536U (en) Multidirectional visual driving auxiliary device for vehicle
US7057500B1 (en) Rear view monitoring system for motor vehicles
CN103810686A (en) Seamless splicing panorama assisting driving system and method
KR100414708B1 (en) Picture composing apparatus and method
JP5132249B2 (en) In-vehicle imaging device
JP2008296697A (en) Parking support device
KR20020033816A (en) Monitoring system
JP4725233B2 (en) Overhead image display system
KR20090031997A (en) Perimeter monitoring apparatus and image display method for vehicle

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110309

Termination date: 20130817