JPS6473880A - Iamge transmission system - Google Patents
Iamge transmission systemInfo
- Publication number
- JPS6473880A JPS6473880A JP23051287A JP23051287A JPS6473880A JP S6473880 A JPS6473880 A JP S6473880A JP 23051287 A JP23051287 A JP 23051287A JP 23051287 A JP23051287 A JP 23051287A JP S6473880 A JPS6473880 A JP S6473880A
- Authority
- JP
- Japan
- Prior art keywords
- image
- threshold value
- transmission
- change
- changed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Closed-Circuit Television Systems (AREA)
- Television Systems (AREA)
Abstract
PURPOSE:To improve transmission efficiency and to reduce deviation between an image and an original image, by providing a threshold value setting means to set a threshold value at a level to keep a transmission data volume almost constant at every transmission of a changed image. CONSTITUTION:Compression with high compressibility of data volume are applied on a reference image and the changed image at a control part, and they are transmitted as the coarse image data of the reference image and the changed image. Firstly, assuming that change between the reference image and the next image fetched after transmission is shown as in figure (a), the threshold value goes to the (a). Furthermore, it is assumed that certain change shown in figure (b) occurs between the image fetched at the next stage and a previous image. In such a case, a change volume goes to Va', and the Va' is less than a change volume Va, therefore, a transmission time is reduced than a constant time tc. Hereafter, the threshold value is set by the threshold value setting means so as to keep the change volume to be transmitted constant at every transmission of the changed image, and the change volume extracted by the threshold value is transmitted as the changed image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23051287A JPS6473880A (en) | 1987-09-14 | 1987-09-14 | Iamge transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23051287A JPS6473880A (en) | 1987-09-14 | 1987-09-14 | Iamge transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6473880A true JPS6473880A (en) | 1989-03-20 |
Family
ID=16908914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23051287A Pending JPS6473880A (en) | 1987-09-14 | 1987-09-14 | Iamge transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6473880A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016540397A (en) * | 2013-09-26 | 2016-12-22 | ローズマウント インコーポレイテッド | Wireless industrial process field device using image processing |
| US10823592B2 (en) | 2013-09-26 | 2020-11-03 | Rosemount Inc. | Process device with process variable measurement using image capture device |
| US10914635B2 (en) | 2014-09-29 | 2021-02-09 | Rosemount Inc. | Wireless industrial process monitor |
| US11076113B2 (en) | 2013-09-26 | 2021-07-27 | Rosemount Inc. | Industrial process diagnostics using infrared thermal sensing |
-
1987
- 1987-09-14 JP JP23051287A patent/JPS6473880A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016540397A (en) * | 2013-09-26 | 2016-12-22 | ローズマウント インコーポレイテッド | Wireless industrial process field device using image processing |
| US10638093B2 (en) | 2013-09-26 | 2020-04-28 | Rosemount Inc. | Wireless industrial process field device with imaging |
| US10823592B2 (en) | 2013-09-26 | 2020-11-03 | Rosemount Inc. | Process device with process variable measurement using image capture device |
| US11076113B2 (en) | 2013-09-26 | 2021-07-27 | Rosemount Inc. | Industrial process diagnostics using infrared thermal sensing |
| US10914635B2 (en) | 2014-09-29 | 2021-02-09 | Rosemount Inc. | Wireless industrial process monitor |
| US11927487B2 (en) | 2014-09-29 | 2024-03-12 | Rosemount Inc. | Wireless industrial process monitor |
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