JPS63263982A - Still picture transmission equipment - Google Patents
Still picture transmission equipmentInfo
- Publication number
- JPS63263982A JPS63263982A JP9951287A JP9951287A JPS63263982A JP S63263982 A JPS63263982 A JP S63263982A JP 9951287 A JP9951287 A JP 9951287A JP 9951287 A JP9951287 A JP 9951287A JP S63263982 A JPS63263982 A JP S63263982A
- Authority
- JP
- Japan
- Prior art keywords
- data
- transmitting
- screen
- picture
- memory
- 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
- 230000005540 biological transmission Effects 0.000 title description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、画像を伝送する装置に関し、特に量子化され
た静止画像を、伝送する装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for transmitting images, and more particularly to a device for transmitting quantized still images.
(従来の技術)
従来の静止画像伝送装置では、画面の一部分を伝送する
手段として、固定分割法が用いられてきた。固定分割法
では、画面をどのように分割するかを予め決めておき、
分割された画面のそれぞれに番号を付けておく、そして
、送信側では、分割画面を伝送するに先だって、分割画
面番号を送る。(Prior Art) In conventional still image transmission devices, a fixed division method has been used as a means for transmitting a portion of a screen. With the fixed splitting method, you decide in advance how to split the screen,
A number is assigned to each divided screen, and the transmitting side sends the divided screen number before transmitting the divided screen.
他方、受信側では、その番号から、次に送られて来る画
像の画面における水平方向位置、垂直方向位置および大
きさを知り、画面の所定の位置へ受信画像を表示する。On the other hand, the receiving side knows the horizontal position, vertical position, and size of the next image to be sent on the screen from the number, and displays the received image at a predetermined position on the screen.
(発明が解決しようとする問題点)
上述したように、従来の静止画像伝送装置に用いられて
いた固定分割法では、画面の中の予め決められた部分の
画像伝送は可能だが、画面の中の任意の部分の画像を伝
送することは不可能である。(Problems to be Solved by the Invention) As mentioned above, with the fixed division method used in conventional still image transmission devices, it is possible to transmit images of predetermined parts of the screen, but It is not possible to transmit images of any part of the .
このように、従来の静止画像伝送装置には、伝送する部
分画像の選択に融通性が少ないという問題がある。As described above, the conventional still image transmission apparatus has a problem in that there is little flexibility in selecting partial images to be transmitted.
(問題点を解決するための手段)
前述の問題点を解決するために本発明が提供する手段は
、テレビジョン信号で表わされる画像を記憶し、符号化
して伝送する装置であって、伝送する画像の画面におけ
る水平方向および垂直方向の位置の情報並びに水平方向
および垂直方向の大きさの情報を伝送する手段と、当該
位置の情報および大きさの情報で指定される画面領域の
当該画像のデータを伝送する手段とを有してなる。(Means for Solving the Problems) Means provided by the present invention in order to solve the above-mentioned problems is an apparatus for storing, encoding and transmitting images represented by television signals, A means for transmitting horizontal and vertical position information and horizontal and vertical size information on a screen of an image, and data of the image in a screen area specified by the position information and size information. and means for transmitting.
(実施例) 次に、図面を参照して本発明を一層詳しく説明する。(Example) Next, the present invention will be explained in more detail with reference to the drawings.
第1図は本発明の一実施例である静止画像伝送装置の回
路構成を示すブロック図である。第1図において、11
は送信装置であり、12は受信装置である。送信装置1
1はアナログ−ディジタル変換器1、位置指定器2.メ
モリ3.符号化器4で構成される。受信装置12は、復
号器51位置指定器6゜メモリ7、ディジタル−アナロ
グ変換器8で構成される。FIG. 1 is a block diagram showing the circuit configuration of a still image transmission device according to an embodiment of the present invention. In Figure 1, 11
is a transmitting device, and 12 is a receiving device. Transmitting device 1
1 is an analog-digital converter 1, a position designator 2. Memory 3. It consists of an encoder 4. The receiving device 12 includes a decoder 51, a position designator 6, a memory 7, and a digital-to-analog converter 8.
送信装W11において、映像入力21がアナログ−ディ
ジタル変換器1でディジタルデータに変換されて、メモ
リ3へ書き込まれる。メモリ3へ書き込まれた映像を画
面で表すと、第2図の101で示す領域を占めるとする
。この101のうち、201で示す領域の映像を伝送す
る場合、送信装置11は201の左上隅の画面上での位
置座標(X、Y)と、201の水平方向の大きさLHと
垂直方向の大きさLVとを画像データを送るに先立って
、受信装置12へ送る。第1図において、位置指定器2
が(X。In the transmitter W11, the video input 21 is converted into digital data by the analog-to-digital converter 1 and written into the memory 3. When the video written to the memory 3 is represented on a screen, it occupies the area indicated by 101 in FIG. When transmitting the video of the area 201 among these 101, the transmitting device 11 uses the position coordinates (X, Y) of the upper left corner of 201 on the screen, the horizontal size LH of 201, and the vertical direction. The size LV is sent to the receiving device 12 before sending the image data. In Fig. 1, position designator 2
But (X.
Y)、LH,LVのデータを符号化器4へ送る。Y), LH, and LV data are sent to the encoder 4.
符号化器4は(X、Y)、LH,LVのデータを符号化
して回線22へ送出する。受信装置12では復号器5が
送られてきたデータを復号し、そのデータが位置情報で
あれば位置指定器6へ通知し、次に送られてくる画像デ
ータの書き込み位置をセットする。送信装置11では次
に、位置指定器2により指定された領域の画像データを
メモリ3から順次読み出し、符号化器4でその画像デー
タを符号化して回線22へ出力する。受信装置12では
、回線22からのデータを復号器5で復号し、メモリ7
の位置指定器6で指定される範囲へ順次書き込んでいく
。メモリ7の画像データはディジタル−アナログ変換器
8で映像信号に変換されて映像出力23となる。The encoder 4 encodes (X, Y), LH, and LV data and sends it to the line 22. In the receiving device 12, the decoder 5 decodes the sent data, and if the data is position information, it notifies the position specifying device 6, and sets the writing position of the image data that will be sent next. Next, the transmitter 11 sequentially reads the image data of the area specified by the position designator 2 from the memory 3, encodes the image data with the encoder 4, and outputs the encoded image data to the line 22. In the receiving device 12, the data from the line 22 is decoded by the decoder 5, and the data is stored in the memory 7.
The data is sequentially written into the range specified by the position designator 6. The image data in the memory 7 is converted into a video signal by a digital-to-analog converter 8 and becomes a video output 23.
(発明の効果)
この様に、本発明では、画像データを送信するに先だっ
て、送信する画像の位置情報と水平方向の大きさのデー
タ、垂直方向の大きさのデータを送り、受信側での画像
データの書き込み位置を指定することにより、画面中の
任意の一部分の画像を送ることが可能となる。従って、
本発明を採用することにより、不必要な部分の画像を送
ることが無くなるから、伝送効率を向上できる。(Effects of the Invention) As described above, in the present invention, before transmitting image data, the position information, horizontal size data, and vertical size data of the image to be transmitted are sent, and the receiving side By specifying the writing position of image data, it becomes possible to send an image of any part of the screen. Therefore,
By adopting the present invention, it is no longer necessary to send images of unnecessary portions, so transmission efficiency can be improved.
第1図は本発明に係る静止画像伝送装置の一実施例の回
路構成を示すブロック図、第2図はその実施例の送信側
メモリに書き込まれた映像の領域を画面に対応させて示
す模式図である。
1・・・アナログ−ディジタル変換器、2・・・位置指
定器、3・・・メモリ、4・・・符号化器、5・・・復
号器、6・・・位置指定器、7・・・メモリ、8・・・
ディシタルーアナログ変換器、11・・・送信装置、1
2・・・受信装置、21・・・映像信号入力、22・・
・回線、23・・・映像信号出力、101・・・全画像
の領域、201・・・送信する画像の領域、(x、y)
・・・送信する画像の左上隅の全画像における位置座標
、LH・・・送信する画像の水平方向の大きさ、LV・
・・送信する画像の垂直方向の大きさ。FIG. 1 is a block diagram showing the circuit configuration of an embodiment of a still image transmission device according to the present invention, and FIG. 2 is a schematic diagram showing the area of the video written in the transmitting side memory of the embodiment in correspondence with the screen. It is a diagram. DESCRIPTION OF SYMBOLS 1...Analog-digital converter, 2...Position specifier, 3...Memory, 4...Encoder, 5...Decoder, 6...Position specifier, 7...・Memory, 8...
Digital-to-analog converter, 11... Transmitting device, 1
2... Receiving device, 21... Video signal input, 22...
・Line, 23...Video signal output, 101...Area of all images, 201...Area of images to be transmitted, (x, y)
...Position coordinates in all images of the upper left corner of the image to be transmitted, LH...Horizontal size of the image to be transmitted, LV.
...Vertical size of the image to be sent.
Claims (1)
て伝送する装置において、伝送する画像の画面における
水平方向および垂直方向の位置の情報並びに水平方向お
よび垂直方向の大きさの情報を伝送する手段と、当該位
置の情報および大きさの情報で指定される画面領域の当
該画像のデータを伝送する手段とを有する静止画像伝送
装置。In an apparatus for storing, encoding and transmitting images represented by television signals, means for transmitting information on horizontal and vertical positions and horizontal and vertical sizes of images to be transmitted on a screen; , means for transmitting data of the image in a screen area specified by the position information and size information.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9951287A JPS63263982A (en) | 1987-04-22 | 1987-04-22 | Still picture transmission equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9951287A JPS63263982A (en) | 1987-04-22 | 1987-04-22 | Still picture transmission equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63263982A true JPS63263982A (en) | 1988-10-31 |
Family
ID=14249306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9951287A Pending JPS63263982A (en) | 1987-04-22 | 1987-04-22 | Still picture transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63263982A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4979028A (en) * | 1988-05-30 | 1990-12-18 | Sony Corporation | Video telephone |
US4994913A (en) * | 1988-11-08 | 1991-02-19 | Mitsubishi Denki Kabushiki Kaisha | Still picture transmission-display apparatus |
JP2010011499A (en) * | 2002-01-05 | 2010-01-14 | Samsung Electronics Co Ltd | Image coding and decoding apparatus and method considering human visual characteristics |
-
1987
- 1987-04-22 JP JP9951287A patent/JPS63263982A/en active Pending
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4979028A (en) * | 1988-05-30 | 1990-12-18 | Sony Corporation | Video telephone |
US4994913A (en) * | 1988-11-08 | 1991-02-19 | Mitsubishi Denki Kabushiki Kaisha | Still picture transmission-display apparatus |
JP2010011499A (en) * | 2002-01-05 | 2010-01-14 | Samsung Electronics Co Ltd | Image coding and decoding apparatus and method considering human visual characteristics |
US8036280B2 (en) | 2002-01-05 | 2011-10-11 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8045621B2 (en) | 2002-01-05 | 2011-10-25 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8345771B2 (en) | 2002-01-05 | 2013-01-01 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8345772B2 (en) | 2002-01-05 | 2013-01-01 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8345773B2 (en) | 2002-01-05 | 2013-01-01 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8599928B2 (en) | 2002-01-05 | 2013-12-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8599927B2 (en) | 2002-01-05 | 2013-12-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8599930B2 (en) | 2002-01-05 | 2013-12-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US8948268B2 (en) | 2002-01-05 | 2015-02-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9106912B2 (en) | 2002-01-05 | 2015-08-11 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9414075B2 (en) | 2002-01-05 | 2016-08-09 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9774859B2 (en) | 2002-01-05 | 2017-09-26 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9774862B2 (en) | 2002-01-05 | 2017-09-26 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9774858B2 (en) | 2002-01-05 | 2017-09-26 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9774860B2 (en) | 2002-01-05 | 2017-09-26 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9774857B2 (en) | 2002-01-05 | 2017-09-26 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9774861B2 (en) | 2002-01-05 | 2017-09-26 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9781425B2 (en) | 2002-01-05 | 2017-10-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9781429B2 (en) | 2002-01-05 | 2017-10-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9781430B2 (en) | 2002-01-05 | 2017-10-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9781431B2 (en) | 2002-01-05 | 2017-10-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9781432B2 (en) | 2002-01-05 | 2017-10-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9781426B2 (en) | 2002-01-05 | 2017-10-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9781428B2 (en) | 2002-01-05 | 2017-10-03 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9800871B2 (en) | 2002-01-05 | 2017-10-24 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9807394B2 (en) | 2002-01-05 | 2017-10-31 | Samsung Electronics Co., Ltd.Q | Image coding and decoding method and apparatus considering human visual characteristics |
US9843806B2 (en) | 2002-01-05 | 2017-12-12 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
US9848194B2 (en) | 2002-01-05 | 2017-12-19 | Samsung Electronics Co., Ltd. | Image coding and decoding method and apparatus considering human visual characteristics |
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