CN103049238A - Method and device for transmitting image data - Google Patents

Method and device for transmitting image data Download PDF

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Publication number
CN103049238A
CN103049238A CN2012105454285A CN201210545428A CN103049238A CN 103049238 A CN103049238 A CN 103049238A CN 2012105454285 A CN2012105454285 A CN 2012105454285A CN 201210545428 A CN201210545428 A CN 201210545428A CN 103049238 A CN103049238 A CN 103049238A
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China
Prior art keywords
image
unit
display processing
processing device
instruction
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CN2012105454285A
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Chinese (zh)
Inventor
谭建军
董友球
叶伯洪
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Vtron Technologies Ltd
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Vtron Technologies Ltd
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Priority to CN2012105454285A priority Critical patent/CN103049238A/en
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Abstract

The invention discloses a method and a device for transmitting image data. The method comprises the following steps of receiving an image request instruction of display processing equipment, and acquiring input data; segmenting each frame of image into preset data block image units for independently coding according to the size of each frame of image in the input data and the size of a preset block; combining code data of the image units in the same area into image unit packets according to the corresponding coordinate positions of the image units; and returning the image unit packets in the corresponding areas to the display processing equipment according to display areas of the image request instruction and area coordinate parameters. Due to the adoption of the method and the device, data transmission can be optimized, and the loss of CPU (Central Processing Unit) resources and the transmission volume of network data are reduced.

Description

Image data transmission method and device
Technical field
The present invention relates to image processing techniques, particularly relate to image data transmission method and device.
Background technology
In a distributed data processing system, when a window of striding a plurality of display units is carried out fenestration procedure, existing way is the view picture computer picture data encoding that computer data acquisition system will collect from signal source, and sends to respectively each display processing unit decoding.Each display processing unit decoding entire image data, and according to corresponding coordinate and window parameter, only show appropriate section, thus form a complete picture.Such computer data acquisition system is applied to distributed data processing system will produces a series of obvious problems, for example, the entire image coding of computer data acquisition system to collecting increased the complexity of encoding, and needs to consume more CPU calculation resources.In addition, the display processing unit entire image of need to decoding, but only show the part of entire image, display processing unit has expended extra resource and time for the part data image decoding that does not need to show.
Summary of the invention
Based on this, be necessary for the problems referred to above, a kind of image data transmission method and device are provided, can reportedly be input into row optimization by logarithm, reduced consumption and network data transmission amount to cpu resource.
A kind of image data transmission method comprises:
After receiving the image request instruction of display processing device, the Gather and input data;
According to the size of every two field picture in the described input data and default minute block size, described every two field picture is divided into preset data piece elementary area independently encodes;
According to the corresponding coordinate position of elementary area, with the coded data groups resultant image unit bag of the described elementary area of the same area;
According to viewing area and the area coordinate parameter of described image request instruction, the image unit bag of respective regions is returned to described display processing device.
Correspondingly, a kind of image data transmitting device comprises:
Independent collecting unit, after being used for receiving the image request instruction of display processing device, the Gather and input data;
The Image Coding unit that links to each other with described independent collecting unit is used for described every two field picture being divided into preset data piece elementary area independently encoding according to the size of the every two field picture of described input data and default minute block size;
The image assembled unit that links to each other with described Image Coding unit is used for according to the corresponding coordinate position of elementary area, with the coded data groups resultant image unit bag of the described elementary area of the same area;
Return the unit with the zone that described image assembled unit links to each other, be used for viewing area and area coordinate parameter according to described image request instruction, the image unit bag of respective regions is returned to described display processing device.
Implement the present invention, have following beneficial effect:
Logarithm of the present invention reportedly is input into row optimization, according to the size of every two field picture and default minute block size, described every two field picture is divided into preset data piece elementary area, request based on each display processing unit, the coded data groups resultant image unit bag of the described elementary area of the same area is carried out the piecemeal transmission, reduced consumption and network data transmission amount to cpu resource.
Description of drawings
Fig. 1 is the process flow diagram of a kind of image data transmission method of the present invention;
Fig. 2 is system's composition diagram of a kind of image data transmission method of the present invention;
Fig. 3 is the embodiment process flow diagram of a kind of image data transmission method of the present invention;
Fig. 4 is the schematic diagram of a kind of image data transmitting device of the present invention;
Fig. 5 is the embodiment schematic diagram of a kind of image data transmitting device of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the process flow diagram of a kind of image data transmission method of the present invention, comprising:
S101: after receiving the image request instruction of display processing device, the Gather and input data;
S102: according to the size of every two field picture in the described input data and default minute block size, described every two field picture is divided into preset data piece elementary area independently encodes;
S103: according to the corresponding coordinate position of elementary area, with the coded data groups resultant image unit bag of the described elementary area of the same area;
S104: according to viewing area and the area coordinate parameter of described image request instruction, the image unit bag of respective regions is returned to described display processing device.
Compared with prior art, the present invention sends to each display unit with whole sub-picture, carry out image segmentation by each display unit, and the request that is based on each display processing unit is carried out image is carried out the piecemeal transmission, has reduced consumption and network data transmission amount to cpu resource.
Fig. 2 is system's composition diagram of a kind of image data transmission method of the present invention; Fig. 3 is the embodiment process flow diagram of a kind of image data transmission method of the present invention; Below in conjunction with Fig. 2, Fig. 3 the embodiment of the invention is described further.
S201: calculate window size and the area coordinate parameter of each display processing device according to the specification of each display unit, generate the described instruction of windowing;
S202: each display processing device is according to the window information in the instruction of windowing, and each self-generating image request instruction sends;
S203: after receiving the image request instruction of display processing device, the Gather and input data;
S204: according to the size of every two field picture in the described input data and default minute block size, described every two field picture is divided into preset data piece elementary area independently encodes;
S205: according to the corresponding coordinate position of elementary area, with the coded data groups resultant image unit bag of the described elementary area of the same area;
S206: according to viewing area and the area coordinate parameter of described image request instruction, the image unit bag of respective regions is returned to described display processing device;
S207: each display processing device is decoded to the coded data of described image unit bag respectively, and plays the image of same frame in the identical time.
Open one with the window of computer data acquisition system as signal source in control terminal, the control terminal instruction of will windowing sends to Control Server, comprises the information such as window size, coordinate and signal source description in the instruction of windowing.
Control Server is respectively each display processing device (display processing device 1,2,3,4) according to the instruction of windowing of control terminal and calculates the parameters such as separately window size, coordinate, sends the instruction of windowing to corresponding display processing device respectively simultaneously.
Each display processing device (display processing device 1,2,3,4) according to the window information in the instruction of windowing that receives respectively simultaneously to the computer data acquisition system request data of respective regions separately.
Computer data acquisition system receive after the request of data instruction of display processing device the beginning image data and by default minute block size with the entire image deblocking coding that collects, send respectively simultaneously the data in corresponding request zone to each display processing device according to the difference in each display processing device request zone.This step comprises following step:
A) computer data acquisition system receives beginning Gather and input data after the request of data instruction of any one display processing device and continues to accept the request of data of display processing device.
B) computer data acquisition system will collect entire image according to the size of the view data that collects and a default minute block size and be divided into some image-regions and coding respectively, preserve corresponding image coordinate in the image block of coding respectively.
C) computer data acquisition system area size and the coordinate parameters of asking according to each display processing device of step a is distributed to respectively corresponding display processing device with the data that step b encodes.The data decode that each display processing device will be asked from computer data acquisition system and according to the coordinate parameters of each image block and the window coordinates parameter the instruction of windowing, play the image of same frame in the identical time, the data of decoding are spliced into a complete image show.
Fig. 4 is the schematic diagram of a kind of image data transmitting device of the present invention, comprising:
Independent collecting unit, after being used for receiving the image request instruction of display processing device, the Gather and input data;
The Image Coding unit that links to each other with described independent collecting unit is used for described every two field picture being divided into preset data piece elementary area independently encoding according to the size of the every two field picture of described input data and default minute block size;
The image assembled unit that links to each other with described Image Coding unit is used for according to the corresponding coordinate position of elementary area, with the coded data groups resultant image unit bag of the described elementary area of the same area;
Return the unit with the zone that described image assembled unit links to each other, be used for viewing area and area coordinate parameter according to described image request instruction, the image unit bag of respective regions is returned to described display processing device.
Fig. 5 is the embodiment schematic diagram of a kind of image data transmitting device of the present invention.
As shown in Figure 5, among embodiment, comprising therein: the instruction sending unit that links to each other with described independent collecting unit, be used for the window information according to the instruction of windowing, each self-generating image request instruction sends.
As shown in Figure 5, therein among embodiment, also comprise: the instruction generation unit that links to each other with described instruction sending unit, window size and area coordinate parameter for calculate each display processing device according to the specification of each display unit generate the described instruction of windowing.
As shown in Figure 5, among embodiment, comprising therein:
Return the receipt decoding unit that the unit links to each other with described zone, be used for receiving described image unit bag, the coded data of described image unit bag is decoded;
The synchronous broadcast unit that links to each other with described receipt decoding unit is for the image of playing same frame in the identical time.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (8)

1. an image data transmission method is characterized in that, comprising:
After receiving the image request instruction of display processing device, the Gather and input data;
According to the size of every two field picture in the described input data and default minute block size, described every two field picture is divided into preset data piece elementary area independently encodes;
According to the corresponding coordinate position of elementary area, with the coded data groups resultant image unit bag of the described elementary area of the same area;
According to viewing area and the area coordinate parameter of described image request instruction, the image unit bag of respective regions is returned to described display processing device.
2. image data transmission method according to claim 1 is characterized in that, before the step of the image request instruction of reception display processing device, comprising:
Each display processing device is according to the window information in the instruction of windowing, and each self-generating image request instruction sends.
3. image data transmission method according to claim 2 is characterized in that, each display processing device, also comprises before the step that each self-generating image request instruction sends according to the window information in the instruction of windowing:
Calculate window size and the area coordinate parameter of each display processing device according to the specification of each display unit, generate the described instruction of windowing.
4. according to claim 1 to 3 each described image data transmission methods, it is characterized in that, the image unit bag of respective regions returned to after the step of described display processing device, comprising:
Each display processing device is decoded to the coded data of described image unit bag respectively, and plays the image of same frame in the identical time.
5. an image data transmitting device is characterized in that, comprising:
Independent collecting unit, after being used for receiving the image request instruction of display processing device, the Gather and input data;
The Image Coding unit that links to each other with described independent collecting unit is used for described every two field picture being divided into preset data piece elementary area independently encoding according to the size of the every two field picture of described input data and default minute block size;
The image assembled unit that links to each other with described Image Coding unit is used for according to the corresponding coordinate position of elementary area, with the coded data groups resultant image unit bag of the described elementary area of the same area;
Return the unit with the zone that described image assembled unit links to each other, be used for viewing area and area coordinate parameter according to described image request instruction, the image unit bag of respective regions is returned to described display processing device.
6. image data transmitting device according to claim 5 is characterized in that, comprising:
The instruction sending unit that links to each other with described independent collecting unit is used for the window information according to the instruction of windowing, and each self-generating image request instruction sends.
7. image data transmitting device according to claim 6 is characterized in that, also comprises:
The instruction generation unit that links to each other with described instruction sending unit, window size and area coordinate parameter for calculate each display processing device according to the specification of each display unit generate the described instruction of windowing.
8. according to claim 5 to 7 each described image data transmitting devices, it is characterized in that, comprising:
Return the receipt decoding unit that the unit links to each other with described zone, be used for receiving described image unit bag, the coded data of described image unit bag is decoded;
The synchronous broadcast unit that links to each other with described receipt decoding unit is for the image of playing same frame in the identical time.
CN2012105454285A 2012-12-14 2012-12-14 Method and device for transmitting image data Pending CN103049238A (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN104282289A (en) * 2013-07-09 2015-01-14 大豪信息技术(威海)有限公司 Display method and device of single chip microcomputer
CN104735419A (en) * 2015-03-31 2015-06-24 广东威创视讯科技股份有限公司 Video signal display method and system
CN106792270A (en) * 2016-12-08 2017-05-31 广东威创视讯科技股份有限公司 A kind of method for processing video frequency and system
CN111107316A (en) * 2019-12-17 2020-05-05 西安万像电子科技有限公司 Image display method, device and system
CN111124337A (en) * 2019-12-17 2020-05-08 西安万像电子科技有限公司 Image display method and system
CN111372088A (en) * 2020-03-30 2020-07-03 浙江大华技术股份有限公司 Video coding method, video coding device, video coder and storage device
CN112583821A (en) * 2020-12-09 2021-03-30 威创集团股份有限公司 Display method, display system, electronic device, and computer-readable storage medium

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US20120236199A1 (en) * 2011-03-14 2012-09-20 Fujitsu Limited Information processing apparatus, image transmitting program, image transmitting method and image display method

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CN101345865A (en) * 2007-07-13 2009-01-14 索尼株式会社 Image transmitting apparatus, image transmitting method, receiving apparatus, and image transmitting system
US20090016622A1 (en) * 2007-07-13 2009-01-15 Sony Corporation Image transmitting apparatus, image transmitting method, receiving apparatus, and image transmitting system
US20120236199A1 (en) * 2011-03-14 2012-09-20 Fujitsu Limited Information processing apparatus, image transmitting program, image transmitting method and image display method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104282289A (en) * 2013-07-09 2015-01-14 大豪信息技术(威海)有限公司 Display method and device of single chip microcomputer
CN104282289B (en) * 2013-07-09 2017-03-22 一诺仪器(中国)有限公司 Display method and device of single chip microcomputer
CN104735419A (en) * 2015-03-31 2015-06-24 广东威创视讯科技股份有限公司 Video signal display method and system
CN104735419B (en) * 2015-03-31 2017-10-10 广东威创视讯科技股份有限公司 The display methods and system of vision signal
CN106792270A (en) * 2016-12-08 2017-05-31 广东威创视讯科技股份有限公司 A kind of method for processing video frequency and system
CN111107316A (en) * 2019-12-17 2020-05-05 西安万像电子科技有限公司 Image display method, device and system
CN111124337A (en) * 2019-12-17 2020-05-08 西安万像电子科技有限公司 Image display method and system
CN111372088A (en) * 2020-03-30 2020-07-03 浙江大华技术股份有限公司 Video coding method, video coding device, video coder and storage device
CN112583821A (en) * 2020-12-09 2021-03-30 威创集团股份有限公司 Display method, display system, electronic device, and computer-readable storage medium

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