CN1913570A - Image transmission system and image transmission method - Google Patents
Image transmission system and image transmission method Download PDFInfo
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- CN1913570A CN1913570A CN 200510087787 CN200510087787A CN1913570A CN 1913570 A CN1913570 A CN 1913570A CN 200510087787 CN200510087787 CN 200510087787 CN 200510087787 A CN200510087787 A CN 200510087787A CN 1913570 A CN1913570 A CN 1913570A
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Abstract
This invention relates to an image transmission system and a method for transmiting data of dynamic image, which first of all transmits data of a first image to a second position from a first position and displays related first image, utilizes a comparison module to compare the the part image in the second image different from that in the first one, then transmits the part image only to replace the image data in the corresponding position in the first to generate a paly image datum then to play said datum to display the corresponding second image at the second position.
Description
Technical field
The present invention relates to a kind of image transmission system and image transmission method, refer to be used in the image transmission system and the image transmission method of projector and computer installation especially.
Background technology
Since the self information development in science and technology, image data is transmitted as quite frequent application, but under the limited hardware disposal ability, how the efficient image data that carries out transmits, and becomes the key subjects that the technology scientific research personnel need break through.
With projector applications, the image data of projector is handled, be to edit, handle by the computer installation that telecommunication links, after computer installation produces corresponding image data at required image, the follow-up projector that is sent to, then projector can be incident upon long-range screen with the corresponding image of this image data, watches for the user.
Yet, at every turn according to each display page, transmit the overall data of this page in regular turn, not only test the data-handling capacity of projector, also test the ability to bear of communication frequency range, particularly the rising in recent years wireless projector, in the transmission of wireless telecommunications, frequency range is more not enough, the above-mentioned transmission means poor effect that can seem, or ancillary cost to increase the ability of hardware.
Summary of the invention
The purpose of this invention is to provide a kind of image transmission system and image transmission method,, the display effect of dynamic image is significantly improved, or can reduce the cost of hardware to promote the transmission usefulness of image data between computer installation and projector.
A kind of image transmission system of the present invention is that this dynamic image comprises the first continuous image and second image in order to the image data of transmission dynamic image.This image transmission system comprises a communication module, a display module, a comparing module and a data management module.
Communication module is in order to transmit image data to a second place of first image from a primary importance.
Display module is arranged at the second place, and the image data of corresponding first image that receives is to show first image.
Comparing module is arranged at primary importance, in order in second image relatively with the partial image of first image difference, follow-up by the image data of communication module with this partial image, be sent to the second place from primary importance.
Data management module is to be arranged at the second place, in order to image data with this partial image, the image data that replaces this partial image opposite position in first image, and produce playing video data, follow-up again by display module to should the playing video data to show corresponding second image.
Above-mentioned difference is the picture element with identical display position, in the difference of first image and the second image gray scale value.
Above-mentioned partial image is the minimum rectangular area of the picture element that comprises all tool differences.
Communication module more comprises: a cutting module, be arranged at primary importance, and the predetermined image that transmits is cut into the little image of rectangle of a plurality of pre-sizings; One delivery module is arranged at primary importance, and the image data of the little image of described rectangle is sent out; And a receiver module, be arranged at the second place, in order to receive the image data of the little image of described rectangle; Wherein, receive arbitrary image data in the image data of the little image of described rectangle in the second place, display module shows with the little image of rectangle that is about to the image data correspondence that receives.
Data management module is when display module shows the little image of rectangle of described partial image, and controls the image that this display module shows the described partial image of non-correspondence in first image once again.
Detecting the frequency of described difference in primary importance, is to surpass per second 15 times.
Primary importance is a computer installation, and the second place is a projector, and this computer installation is by network and this projector's communication link.
Communication link be selected from by wire communication link and wireless telecommunications link formed communication link in the group.
The present invention provides a kind of image transmission method in addition, in order to transmit the image data of dynamic image, this dynamic image comprises the first continuous image and second image, it is characterized in that this image transmission method comprises the following step: image data to a second place that transmits first image from a primary importance; In the second place, the image data of corresponding first image that receives is to show this first image; In primary importance, relatively in second image with the partial image of first image difference; Image data with described partial image is sent to the second place from primary importance; In the second place,, replace the image data of this partial image opposite position in first image, and produce playing video data the image data of described partial image; And in the second place, corresponding described playing video data are to show corresponding second image.
Described difference is the picture element with identical display position, in the difference of first image and the second image gray scale value.
Described partial image is the minimum rectangular area of the picture element that comprises all tool differences.
The transmission of described image all further comprises the following step: in primary importance, the predetermined image that transmits is cut into the little image of rectangle of a plurality of pre-sizings; The described image data of the little image of rectangle that waits is sent to the second place respectively; And receive arbitrary image data in the image data of the little image of rectangle such as described in the second place, show with the little image of rectangle that is about to the image data correspondence that receives.
When the second place shows the little image of rectangle of described partial image, and control is non-to image that should partial image to show once again in first image.
Detecting the frequency of described difference in primary importance, is to surpass per second 15 times.
Primary importance is a computer installation, and the second place is a projector, and this computer installation is by network and this projector's communication link.
Communication link be selected from by wire communication link and wireless telecommunications link formed communication link in the group.
Therefore, by image transmission system of the present invention and image transmission method, utilize the partial image of more continuous two image tool differences, show to transmit and to change at this partial image, to promote the transmission usefulness of image data between computer installation and projector, the display effect of dynamic image is significantly improved, or can reduce the cost of hardware.
Description of drawings
Fig. 1 is the Organization Chart of image transmission system of the present invention place environment.
Fig. 2 is the schematic diagram of image transmission system of the present invention.
Fig. 3 is the schematic diagram of image of the present invention.
Fig. 4 is the further schematic diagram of communication module.
Fig. 5 shows the schematic diagram of second image again with the little image of rectangle in second device for the present invention.
Fig. 6 is the flow chart of image transmission method of the present invention.
The further flow chart that Fig. 7 transmits for image of the present invention.
The second place 34 networks 36
Comparing module 44 data management modules 46
First image, 50 second images 52
The little image 70 of rectangle keeps image 72
Embodiment
See also Fig. 1, Fig. 1 is the Organization Chart of image transmission system 30 place environment of the present invention.The invention relates to a kind of image transmission system 30, in order to transmit the image data of dynamic image, image transmission system 30 place environment comprise primary importance 32 as computer installation, as the second place 34 of projector, wherein primary importance 32 is by network 36 and the second place 34 communication link, described communication link comprises wired communication link or wireless telecommunications link, for example short-distance wireless communication, LAN, world-wide web etc.
See also Fig. 2, Fig. 2 is the schematic diagram of image transmission system 30 of the present invention.Described dynamic image comprises the first continuous image and second image.Image transmission system 30 comprises a communication module 40, a display module 42, a comparing module 44 and a data management module 46.
At first, first image of dynamic image and second image all are stored in the internal memory 41 after processing or editor's generation, make the image data of this first image be sent to a second place 34 by communication module 40 from a primary importance 32 by processor 43.
Comparing module 44 is arranged at primary importance 32, is the image data of acquisition this second image and this first image in internal memory 41, in order in this second image relatively with the partial image of this first image difference.Wherein, detecting the frequency of these differences in primary importance 32, is to need to surpass per second more than 15 times, be preferably in more than 20 times, so just can make vision feel smooth-going smoothness.Follow-up, make the image data of this partial image 54 by processor 43, by communication module 40 to be sent to the second place 34 from primary importance 32.
About in second image with the partial image of first image difference, wherein said difference is the picture element with identical display position, in the difference of this first image and this second image gray scale value.Described partial image is for comprising the minimum rectangular area of all tool differences and contiguous picture element.
Fig. 3 for example, Fig. 3 is the schematic diagram of image of the present invention.Comprise first image 50, second image 52 among Fig. 3, in second image 52, have difference person therebetween and be partial image 54.In transmitting first image 50 to the second place 34 from primary importance 32, follow-up, only need can show the second complete image 52 in the second place 34, can reduce the processing burden of many hardware and network 36 environment thus from primary importance 32 translator unit images 54 to the second place 34.
Further see also Fig. 4, Fig. 4 is communication module 40 further schematic diagrames.Image transmission system 30 as the aforementioned, and wherein communication module 40 more comprises cutting module 60, a delivery module 62 and a receiver module 64.
Wherein, receive arbitrary image data in the image data of the little image of this rectangle in the second place 34, display module 42 shows with the little image of rectangle that is about to the image data correspondence that receives.Though, so have in the demonstration problem of time difference a little, in the application of projector's PowerPoint, non-ly switch display frame fast, in use go up more than sufficient.
See also Fig. 5, Fig. 5 shows the schematic diagram of second image 52 again with the little image 70 of rectangle in second device for the present invention.What remark additionally is, data management module 46 is when the little image 70 of the rectangle of display module 42 display part images 54, and control the reservation image 72 that display module 42 shows non-counterpart image 54 in first image 50 once again, so install shown second image 52 that is in second.
See also Fig. 6, Fig. 6 is the flow chart of image transmission method of the present invention.The present invention also is the image transmission method that aforementioned image transmission system 30 is implemented, and in order to transmit the image data of dynamic image, this dynamic image comprises the first continuous image 50 and second image 52, and this image transmission method comprises the following step:
Step S02: image data to a second place 34 that transmits first image 50 from a primary importance 32.
Step S04: in the second place 34, the image data of corresponding first image 50 that receives is to show first image 50.
Step S06: in primary importance 32, relatively in second image 52 with the partial image 54 of first image, 50 differences.
Step S08:, be sent to the second place 34 from primary importance 32 with the image data of partial image 54.
Step S10:,, replace the image data of partial image 54 opposite position in first image 50, and produce playing video data with the image data of partial image 54 in the second place 34.
Step S12: in the second place 34, to should the playing video data to show corresponding second image 52.
See also Fig. 7, the further flow chart that Fig. 7 transmits for image of the present invention.The transmission of described image all further comprises the following step:
Step S20:, the predetermined image that transmits is cut into the little image 70 of rectangle of a plurality of pre-sizings in primary importance 32.
Step S22: the image data of the little image 70 of this rectangle is sent to the second place 34 respectively.
Step S24: receive arbitrary image data in the image data of the little image 70 of this rectangle in the second place 34, show with the little image 70 of rectangle that is about to the image data correspondence that receives.
Wherein, when the little image 70 of the rectangle of the second place 34 display part images 54, and control so can show the second complete image 52 in the second place 34 to show the reservation image 72 of non-counterpart image 54 in first image 50 once again.
Therefore, by image transmission system 30 of the present invention and image transmission method, utilize the partial image 54 of more continuous two image tool differences, show to transmit and to change at this partial image 54, to promote the transmission usefulness of image data between computer installation and projector, the display effect of dynamic image is significantly improved, or can reduce the cost of hardware.
Above embodiment is only in order to explanation the present invention, and non-limiting the present invention.
Claims (16)
1. image transmission system that transmits the image data of dynamic image, this dynamic image comprises the first continuous image and second image, it is characterized in that, and this image transmission system comprises:
One communication module transmits image data to a second place of first image from a primary importance;
One display module is arranged at the second place, and the image data of corresponding first image that receives is to show this first image;
One comparing module is arranged at primary importance, relatively in second image with the partial image of first image difference, follow-up by the image data of communication module with this partial image, be sent to the second place from primary importance; And
One data management module, be arranged at the second place, image data with described partial image, the image data that replaces this partial image opposite position in first image, and produce playing video data, follow-up again by display module to should the playing video data to show corresponding second image.
2. image transmission system as claimed in claim 1 is characterized in that, described difference is the picture element with identical display position, in the difference of first image and the second image gray scale value.
3. image transmission system as claimed in claim 1 is characterized in that, described partial image is the minimum rectangular area of the picture element that comprises all tool differences.
4. image transmission system as claimed in claim 1 is characterized in that, described communication module more comprises:
One cutting module is arranged at primary importance, the predetermined image that transmits is cut into the little image of rectangle of a plurality of pre-sizings;
One delivery module is arranged at primary importance, and the image data of the little image of described rectangle is sent out; And
One receiver module is arranged at the second place, receives the image data of the little image of described rectangle;
Wherein, receive arbitrary image data in the image data of the little image of described rectangle in the second place, display module shows with the little image of rectangle that is about to the image data correspondence that receives.
5. image transmission system as claimed in claim 1, it is characterized in that, data management module is when display module shows the little image of rectangle of described partial image, and controls the image that this display module shows the described partial image of non-correspondence in first image once again.
6. image transmission system as claimed in claim 1 is characterized in that, detects the frequency of described difference in primary importance, is to surpass per second 15 times.
7. image transmission system as claimed in claim 1 is characterized in that, primary importance is a computer installation, and the second place is a projector, and this computer installation is by network and this projector's communication link.
8. image transmission system as claimed in claim 7 is characterized in that, communication link be selected from by wire communication link and wireless telecommunications link formed communication link in the group.
9. image transmission method that transmits the image data of dynamic image, this dynamic image comprises the first continuous image and second image, it is characterized in that, and this image transmission method comprises the following step:
Transmit image data to a second place of first image from a primary importance;
In the second place, the image data of corresponding first image that receives is to show this first image;
In primary importance, relatively in second image with the partial image of first image difference;
Image data with described partial image is sent to the second place from primary importance;
In the second place,, replace the image data of this partial image opposite position in first image, and produce playing video data the image data of described partial image; And
In the second place, corresponding described playing video data are to show corresponding second image.
10. image transmission method as claimed in claim 9 is characterized in that, described difference is the picture element with identical display position, in the difference of first image and the second image gray scale value.
11. image transmission method as claimed in claim 9 is characterized in that, described partial image is the minimum rectangular area of the picture element that comprises all tool differences.
12. image transmission method as claimed in claim 9 is characterized in that, the transmission of described image all further comprises the following step:
In primary importance, the predetermined image that transmits is cut into the little image of rectangle of a plurality of pre-sizings;
The described image data of the little image of rectangle that waits is sent to the second place respectively; And
Receive arbitrary image data in the described image data that waits the little image of rectangle in the second place, show with the little image of rectangle that is about to the image data correspondence that receives.
13. image transmission method as claimed in claim 12 is characterized in that, when the second place shows the little image of rectangle of described partial image, and control is non-to image that should partial image to show once again in first image.
14. image transmission method as claimed in claim 9 is characterized in that, detects the frequency of described difference in primary importance, is to surpass per second 15 times.
15. image transmission method as claimed in claim 9 is characterized in that, primary importance is a computer installation, and the second place is a projector, and this computer installation is by network and this projector's communication link.
16. image transmission method as claimed in claim 15 is characterized in that, communication link be selected from by wire communication link and wireless telecommunications link formed communication link in the group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510087787 CN1913570A (en) | 2005-08-08 | 2005-08-08 | Image transmission system and image transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510087787 CN1913570A (en) | 2005-08-08 | 2005-08-08 | Image transmission system and image transmission method |
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| CN1913570A true CN1913570A (en) | 2007-02-14 |
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| CN 200510087787 Pending CN1913570A (en) | 2005-08-08 | 2005-08-08 | Image transmission system and image transmission method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158915A (en) * | 2011-02-21 | 2014-11-19 | 北京奇虎科技有限公司 | Zoning transmission method and system for remote control |
| CN110784621A (en) * | 2018-07-31 | 2020-02-11 | 优视科技有限公司 | Image transmission method, device, server, terminal equipment and system |
-
2005
- 2005-08-08 CN CN 200510087787 patent/CN1913570A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158915A (en) * | 2011-02-21 | 2014-11-19 | 北京奇虎科技有限公司 | Zoning transmission method and system for remote control |
| CN104158915B (en) * | 2011-02-21 | 2018-02-09 | 北京奇虎科技有限公司 | A kind of subregion transmission method and system for remote control |
| CN110784621A (en) * | 2018-07-31 | 2020-02-11 | 优视科技有限公司 | Image transmission method, device, server, terminal equipment and system |
| CN110784621B (en) * | 2018-07-31 | 2022-03-29 | 阿里巴巴（中国）有限公司 | Image transmission method, device, server, terminal equipment and system |
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