JPH07162691A - Still picture transmitter and transmission method therefor - Google Patents

Abstract

PURPOSE:To provide a still picture transmitter and a transmission method therefor capable of easily recognizing the entire still picture screen, quickly and accurately recognizing the pictures of an important part further and improving the efficiency of picture transmission. CONSTITUTION:A screen displayed on a display device 1' is divided into plural in a screen dividing means 50 and editing parameters such as a transmission order, a screen quality level and an error correction standard, etc., are specified in an editing parameter specifying means 60 for divided areas. Picture data are edited corresponding to the specified editing parameters in a picture data editing means 70, the editing parameters are added to the edited picture data and they are transmitted from a transmission means 20. The received picture data are restored corresponding to the editing parameters in a picture data restoration means 80 and are displayed on the display device 1'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image transmitting apparatus for transmitting and receiving a still image via a mobile phone or a general telephone line, and more particularly to a still image transmitting apparatus capable of improving transmission efficiency and the transmission thereof. Regarding the method.

[0002]

2. Description of the Related Art In general, still image information has a much larger amount of information than character information that occupies almost the same area, and therefore, the transmission time thereof is many times longer than the transmission of character information. In need.

For example, one Japanese character used in a personal computer or the like is within 16 bits when expressed by a character code, and when expressed as a graphic, the character shape is usually expressed in a size of about 16 × 16 dots. On the other hand, one dot (pixel), which is the minimum unit in a still image, often requires 24 bits including color information.

Therefore, a character occupying 16 × 16 (= 256) dots has an information amount of 16 bits, but the same 16
A still image that occupies × 16 dots requires an information amount of 16 × 16 × 24 bits = 6144 bits, which has a difference of 6144 bits / 16 bits = 384 times the information amount compared to characters, and the same transmission line is used. As long as you do, it would take 386 times longer.

Therefore, in the conventional still image transmission device,
A compression transmission method has been used in which transmission information is temporarily compressed and transmitted on the transmission side, and the compression transmission information is expanded on the reception side.

First, a conventional general still image transmission device will be described with reference to FIG. FIG. 6 is a configuration block diagram of a conventional still image transmission device. As shown in FIG. 6, the conventional still image transmission device includes a display device 1 and an image input / input device.
Storage unit 10, data compression unit 15, and transmission unit 20
And a receiving unit 30, a data decompressing unit 35, and a received image storing unit 40.

Next, the function of each part of the conventional still image transmission device will be specifically described. The display device 1 switches between a transmission mode and a reception mode with a switch, displays an image input from an image input device such as a camera or an image scanner in the transmission mode, and displays received image data in the reception mode. It is a thing.

The image input / storage means 10 is a means for storing an image input from an image input device such as a camera or an image scanner as image data, and the stored image data is displayed on the display device 1 in the transmission mode. Has become.
The data compression unit 15 is a unit that compresses the image data to be transmitted at a set compression ratio, and the JPEG algorithm is known as an image compression technique ("Interface" Vol. 17, No. 12 "Color Stillness"). International standard encoding method of image-JPEG algorithm- "). The transmission unit 20 is a unit that transmits the compressed image data to the communication line.

The receiving means 30 is means for receiving image data from a communication line. The data expansion means 35
It is means for restoring the image data according to the compression ratio of the received image data. The received image storage means 40 is means for storing the received image data and displaying the image data on the display device 1 in the reception mode.

However, even in the compression transmission in the above-mentioned conventional still image transmission apparatus, the transmission time is about 13 to 38 times as much as the transmission of character information even if the compression rate of the transmission information is 1/10 to 1/30. Since it takes time and the amount of information is reduced by the compression process, deterioration of image quality is unavoidable.

Therefore, as a still image transmission method which has been considered to be most useful in the past, a progressive build-up method and a method of cutting out and transmitting only a part of the image have been proposed. The progressive build-up method divides the compressed image signal into multiple frequency bands, first transmits a rough image (picture) of the low frequency band signal, and then transmits the higher frequency band signal. By adding these, it is possible to gradually finish the image with high definition. When the progressive build-up method is used, the received image is gradually completed as a whole, so it is possible to determine whether or not the image is the desired image at an early stage in the transmission. Suitable for use.

The method of cutting out and transmitting only a part is a method of cutting out only a necessary part from the entire screen and transmitting only the image information of the part, thereby shortening the entire transmission time.

[0013]

However, the still image transmission apparatus and the transmission method of the above-mentioned conventional progressive build-up method are suitable for the purpose of roughly grasping the whole image, but important parts in the still image. However, there is a problem in that the image of the important part cannot be grasped quickly and accurately because it cannot be obtained rapidly with high resolution.

Further, in the above-mentioned conventional method of cutting out and transmitting a part, the image information remaining after cutting out is not transmitted at all, and it is difficult for the receiving side to grasp the entire still image. .

The present invention has been made in view of the above circumstances, and makes it possible to easily grasp the entire still image, and to quickly and accurately grasp the image of an important part, and improve the efficiency of image transmission. An object of the present invention is to provide a still image transmission device and a transmission method thereof.

[0016]

According to a first aspect of the present invention for solving the problems of the conventional example, an image input / storing means for inputting an image from an image input device and storing it as image data, Transmitting means for transmitting the image data to the communication line, receiving means for receiving the image data from the communication line,
In a still image transmission device having a received image storage unit for storing the received image data and a display unit for displaying the input image and the image of the received image data, a screen of the input image is divided into a plurality of areas. Screen dividing means for dividing into two areas, editing parameter specifying means for specifying editing parameters such as transmission order, screen quality level, and error correction level for each area divided by the screen dividing means, and the editing parameter specifying means. Image data editing means for editing the image data stored in the image inputting / storing means according to the editing parameters and adding the editing parameters to the edited image data; and image data received by the receiving means. Image data restoration means for restoring the image data according to the editing parameters is provided.

A second aspect of the present invention for solving the above-mentioned problems of the conventional example is the transmission method of the still image transmission device according to the first aspect, in which the screen dividing means is a screen of an image input from the image input device. Is divided into a plurality of areas, and when the editing parameters such as the transmission order, the screen quality level, and the error correction level are designated for each of the divided areas by the editing parameter designating means, the image data editing means causes the editing parameter to be designated. In the order of areas to be transmitted according to the transmission order of, an error correction code is added to the image data according to the error correction level, and editing is performed by performing compression processing according to the screen quality level,
It is characterized in that the editing parameter is added to the edited image data, and the transmitting means transmits the image data to which the editing parameter is added.

According to a third aspect of the present invention for solving the problems of the conventional example, in the transmission method of the still image transmission device according to the first aspect, the image data restoring means receives the image data received by the receiving means. Image data expansion processing and error correction processing restoration processing are performed in the order of reception according to the edited parameters, the restored image data is sequentially stored in the received image storage means, and the contents of the received image storage means are sequentially displayed in the display means. It is characterized by displaying.

[0019]

According to the first aspect of the present invention, the screen displayed on the display means is divided into a plurality of areas by the screen division means, and the transmission order, screen quality level, and The editing parameter of the error correction level is designated, the image data is edited according to the editing parameter designated by the image data editing means, the editing parameter is added to the edited image data, and the transmitting means transmits and the receiving means receives. This is important because it is a still image transmission device that performs image data restoration processing according to the editing parameters received by the image data restoration means, stores it in the received image storage means, and displays the contents of the received image storage means on the display means. Parts are transmitted first, only important parts are transmitted with high resolution, and the error correction level is adjusted according to the state of the transmission line and the importance of information. Since it is Rukoto, can realize a still image transmission transmission efficiency, further receiving side of the still image can be grasped quickly and accurately still image.

According to the second aspect of the invention, the screen dividing means divides the screen of the image input from the image input device into a plurality of areas, and the transmission order and the screen are divided for each area divided by the editing parameter designating means. When the editing parameters of the quality level and the error correction level are specified, the error correction code according to the error correction level is added to the image data in the order of the area to be transmitted according to the parameters specified by the image data editing means, and the compression processing according to the screen quality level is performed. The transmission method of the still image transmission apparatus according to claim 1, wherein the editing process is performed, the editing parameter is added to the edited image data, and the image data to which the editing parameter is added is transmitted by the transmitting means.
The important part is transmitted first, only the important part is transmitted with high resolution, and the error correction level can be adjusted according to the state of the transmission path and the importance of the information. Image transmission can be realized.

According to the third aspect of the present invention, the image data restoration means performs the restoration processing of the image data decompression processing and the error correction processing in the order of reception in accordance with the received editing parameter of the image data received by the reception means, and the data is restored. The image data is stored in the received image storage means in sequence, and the contents of the received image storage means are sequentially displayed in the display means. Therefore, the important part is transmitted first. , And only the important part is transmitted with high resolution, and further with the error correction level according to the state of the transmission path and the importance of information, it is possible to realize still image transmission with good transmission efficiency and further The receiving side can quickly and accurately grasp the still image.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a configuration block diagram of a still image transmission device according to an embodiment of the present invention. It should be noted that parts having the same configuration as in FIG.

As shown in FIG. 1, the still image transmitting apparatus of this embodiment (first embodiment) is similar to the conventional still image transmitting apparatus in that it has an image input / storing means 10 and a transmitting means 20. And a receiving unit 30 and a received image storing unit 40. Further, as a characteristic part of the present embodiment, a display device 1 ', a screen dividing unit 50 in the transmitting unit, a transmission order designating unit 61, and a screen quality. An editing parameter designating unit 60 having a designating unit 62 and an error correction level designating unit 63, an image data editing unit 70, and an image data restoring unit 80 in a receiving portion are provided.

Next, the operation of each part of the still image transmission apparatus of this embodiment will be concretely described. The operation of the components similar to the conventional one is the same as that of the conventional one, and the image input / storage means 10
It is a means for inputting an image from an image input device such as a camera or an image scanner and storing the image data.
0 is a means for transmitting the image data edited by the image data editing means 70 to the communication line, the receiving means 30 is a means for receiving the image data from the communication line, and the received image storage means 40 is the image data. It is a means for storing the image data restored by the restoring means 80 and displaying it on the display device 1 '.

Next, the structure of the characteristic portion of this embodiment will be described in detail. The display device 1'has a display screen divided into an image portion and an operation portion, and the operation portion is a touch panel. The transmission mode and the reception mode can be set, and the transmission mode and the reception mode can be switched by a switch on the operation portion. Normally, the transmission mode is set when an image input device such as a camera is connected.

In the transmission mode, a still image input from an image input device such as a camera or an image scanner is displayed on the image portion, and editing parameters are set on the touch panel of the operation portion to instruct image data transmission. In the receiving mode, the received image data is displayed on the image portion.

The display device 1'will be specifically described with reference to FIG. FIG. 2 is an explanatory diagram showing a display example of the display device 1'of the still image transmission apparatus of this embodiment. As shown in FIG. 2, the display device 1'of the present embodiment has a schematic configuration in which the display screen is divided into an image portion 1j and an operation portion 1a, and the display screen is a touch panel. The operation portion 1a further includes an order switch 1b, an image quality switch 1c, an error correction switch 1d, a ten-key portion 1e, and a transmission switch 1.
f, a reception switch 1g, and a shutter switch 1h.

The order switch 1b, the image quality switch 1c, and the error correction switch 1d in the operation unit 1a are composed of a push-down portion for designating an operation and a display portion for displaying the result, and the order switch 1b is a "order". By pressing the "" part and touching the divided screens in order, the transmission order is specified and displayed on the display part.
The image quality switch 1c displays the state of the image quality on the display when the "image quality" portion is pressed and the divided screen is touched each time the numeric keypad 1e is input, and the error correction switch 1d displays "error correction". When an error correction level is entered in the ten-key portion 1e every time the "" portion is pressed and the split screen is touched, the level is displayed on the display portion. The shutter switch 1h is a switch for specifying an image captured by a camera as a still image, and when the shutter switch 1h is pressed, the image displayed in the image portion 1j is fixed (specified).

The screen dividing means 50 is a means for dividing or partially cutting out the screen of the image data to be transmitted, and is a means for determining the unit for specifying the parameters by the edit parameter specifying means 60. In the still image transmission apparatus of this embodiment, the display device 1'is preliminarily set by the screen dividing means 50.
The image portion 1j of 1 is divided into four equal parts as shown in FIG.

The editing parameter designating means 60, in order to appropriately weight the information that the user considers important, sends the transmission order, the screen quality or the compression rate or the error for each area of the screen divided by the screen dividing means 50. It is a means for designating editing parameters such as correction level.

The transmission sequence designating means 61, in order to meet the demand for faster transmission of a part of the screen area at the time of image data transmission, selects the area that is to be transmitted earlier for each area divided by the screen dividing means 50. It is a means for designating the transmission order in order. In FIG. 2, the transmission order can be designated by pressing the order switch 1b and touching the panel of the image portion 1j.

The screen quality designating means 62, in transmitting the image data, responds to the request that the important part is transmitted with a high resolution and the less important part may be transmitted with a reduced resolution. This is a means for designating the screen quality (compression ratio of screen data) for each area divided by the dividing means 50. In FIG. 2, the image quality switch 1c is depressed, the panel of the image portion 1j is touched, and the ten-key portion 1e is touched.
You can specify the screen quality by operating. Since the compression ratio differs for each divided screen, the image data compressed by the image data editing unit 70 is added with information about the screen quality (compression ratio) specified by the screen quality specifying unit 62 on the transmitting side, and is transmitted and received. The image data decompression means 80 on the side decompresses the compressed image data according to the information about the screen quality.

The error correction level designating means 63 raises the error correction level of an important portion when the state of the transmission line is not good during image data transmission, and raises the error correction level so much when the state of the transmission line is good. In order to meet the requirement of not having to do so, it is a means for designating an error correction level for each area divided by the screen dividing means 50. In FIG. 2, the error correction level can be designated by pressing the error correction switch 1d, touching the panel of the image portion 1j, and operating the ten-key portion 1e.

The image data editing means 70 is means for editing the image data in accordance with the parameters designated by the editing parameter designating means 60, and the error correction level designating means 63 is arranged in the order of the areas designated by the transmission order designating means 61. A screen quality designating means 6 is added with an error correcting code of a designated level.
The image data is compressed at a compression rate based on the image quality specified in 2, and the information about the compression rate is added to the compressed image data and sent to the transmission means 20. Here, since techniques such as addition of error correction code and compression of image data are already widely known, it is possible to realize the editing of the image data of this embodiment using the conventional error correction and compression technique. it can.

The image data restoring means 80 comprises the receiving means 30.
The means for restoring the image data received in step 1) in the order of reception and sending it to the received image storage means 40. Specifically, the image data is expanded in the order of reception based on the compression ratio of the received data and added to the data. The error correction is performed based on the error correction level value, and the corrected image is sent to the received image storage means 40.

Next, a transmission method in the still image transmission apparatus of this embodiment will be described with reference to FIGS. 1, 2 and 1. FIG. 2 is an explanatory diagram showing a display example of the display device 1'of the still image transmission apparatus of the present embodiment, and Table 1 is a table showing an example of editing parameter setting in the still image transmission apparatus of the present embodiment. .

[0037]

[Table 1]

In the transmission method of the still image transmission apparatus of this embodiment, an image photographed by an image pickup apparatus such as a camera or an image scanner is input by the image input / storage means 10 and displayed as it is on the display unit 1 '. When the shutter switch 1h on the screen is touched, the image portion 1j is fixed, the image data is stored, and a quadrant line is displayed on the image portion 1j.

When setting the transmission order, touch the order switch 1b, and then touch the divided screens in the order of transmission, and the order is displayed on the display portion in the frame of the order switch 1b. It is like this.

When the image quality is set, the image quality switch 1c is touched, the area to be set is touched, and then the image quality level is designated by the ten-key portion 1e. It is designed to be displayed on the display part of.

Similarly, when the error correction level is set, the error correction switch 1d is touched, the area to be set is touched, and then the error correction level is designated by the ten-key unit 1e. The level is displayed on the display portion in the frame of the error correction switch 1d.

When the editing parameters are set by the editing parameter designating means 60 by the touch panel of the operation section 1a on the display screen as described above, and the transmission switch 1f is touched when the setting is completed, the image data editing means 70 sets the editing parameters. In such a transmission order, the value of the set error correction level is incorporated into each image data, the compression processing is further performed at the compression ratio based on the designated image quality designation, and the data is transmitted by the transmission means 20 via the mobile phone. Has become.

On the receiving side, the image data received from the communication line by the receiving means 30 is expanded at any time by the image data restoring means 80 according to the compression ratio of the information relating to the image quality designation added to the compressed image data, Further, error correction processing is performed according to the level value of the error correction code incorporated in the image data, and the error correction code is sent to the received image storage means 40.
When the display device 1'is in the reception mode, the restored image data is displayed on the display device 1'as needed.

This will be described in detail with reference to the example of FIG. 2. As shown in FIG.
When an editing parameter as shown in Fig. 3 is specified and a still image is transmitted with the setting of the editing parameter, Fig. 3
As shown in, the lower right and upper left regions, which are desired to be transmitted at higher speed and with better image quality, are first displayed in the high resolution image.

According to the still image transmission apparatus and the transmission method thereof of this embodiment (first embodiment), the screen is divided into a plurality of areas, and the transmission order can be designated by weighting each area temporally. So you can transmit important parts first,
There is an effect that the time required for information transmission can be shortened.

For example, assuming that there is 80% of what is desired to be transmitted in a 1/4 area of the entire image, and if only that portion is transmitted first, the entire information transmission time is reduced to 1/4 of the entire information transmission time. Since it is considered that 80% of information will be transmitted, it can be evaluated as the same effect that the transmission speed is increased 3.2 times.

Further, according to the still image transmission apparatus and the transmission method thereof of the present embodiment, the screen is divided into a plurality of areas, and the resolution of contents is weighted for each area, so that only the important portion is resolved with high resolution. Since the data can be transmitted, it is possible to clearly understand the screen of the important part, and further, it is possible to shorten the transmission time as compared with the case where the entire screen is transmitted with high resolution.

For example, assuming that 1/4 of the entire image is particularly important, compression is not performed for this 1/4 portion, and the transmission compression rate of the remaining 3/4 portion is doubled. If the transmission time is halved, a transmission speed of 1.6 times as a whole can be obtained.

Further, according to the still image transmission apparatus and the transmission method thereof of this embodiment, an appropriate error correction level can be selected according to the state of the transmission line and the importance of each divided area, so that excess information can be obtained. There is an effect that efficient still image transmission can be realized without adding.

Next, another embodiment (second embodiment) will be described with reference to FIG. 4 is an explanatory diagram showing a display example of the display device 1 ″ of the still image transmission apparatus of the second embodiment. The still image transmission apparatus of the second embodiment has an internal configuration of the first embodiment. It is similar to the example and has the configuration shown in FIG. 1, except that the display screen of the display device 1 ″ is not a touch panel but a device using a mouse used for a personal computer as shown in FIG. Instead of using a mobile phone as a transmitting device, the data is transmitted directly through a communication line (telephone line).

In the second embodiment, the area to be divided by the image dividing means 50 is not fixed, the user freely divides the area each time using the mouse, and the editing parameter is designated for each divided area. Is what you can do.

Explaining it concretely in the example of FIG. 4, in the display device 1 ″ of the second embodiment, as shown in FIG. 4, the display screen is divided into an image portion 2i and an operation portion 2a, and The arrow 2n is moved using a mouse, and a mouse button is clicked to input.

The operation portion 2a further includes an area (1) switch 2b, an area (2) switch 2c, a sequence switch 2d, an image quality switch 2e, an error correction switch 2f, a transmission switch 2g, and a reception switch. It is divided into a switch 2h.

In FIG. 4, the arbitrary area can be divided into two, and the remaining area is the third area. Here, in order to divide the first arbitrary area, first move the arrow 2n to the area (1) switch 2b using the mouse, click the mouse button, and then move the arrow 2n to the first area.
The area 2j is displayed by moving the mouse to the diagonal part of the square that you want to create and clicking the mouse button, then moving the arrow 2n to the other diagonal part and clicking the mouse button. A number "1" indicating the area (1) is displayed at the upper right of the frame.

The area (2) can be divided by the same operation, and the remaining area is processed as the area (3). That is, the frame of the area 2k is displayed in the area (2), the number "2" indicating the area (2) is displayed in the upper right corner, and the area (3) is displayed in the upper right corner of the image portion 2i of the display screen. "3" indicating area (3)
The number is displayed.

Next, when the transmission order is designated, the arrow 2
When n is moved to the order switch 2d and the mouse is clicked in accordance with the position of the number in the switch frame, the displayed number changes cyclically between 1 and 3. This number indicates the area number, and the area indicated by the leftmost number is transmitted first, then the area indicated by the center number is transmitted, and finally the area of the rightmost number is transmitted. Is. Therefore, the mouse and the order switch 2d are operated to determine the transmission order of the arbitrary area.

Next, when designating the image quality, the arrow 2n is moved to the image quality switch 2e, the mouse is moved to the position of the alphabet in the switch frame, and the displayed alphabet is changed from A to C. It changes by patrol between. This alphabet indicates the image quality level of three stages, and the image quality level is selected and instructed in the order of the area to be transmitted.

Next, when the error correction level is designated, the arrow 2n is moved to the error correction switch 2f, and the error correction level is selected in alphabetical order in the order of the areas to be transmitted, as in the case of the image quality. It has become.

The editing parameters are set by the editing parameter designating means 60 by the mouse operation as described above, and the arrow 2n
Is moved to the transmission switch 2g and the mouse is clicked, the image data editing means 70 incorporates the value of the error correction level set in the set transmission order into each image data, and further based on the designated image quality designation. The compression ratio is determined by performing compression processing, the image quality designation information is added to the compressed image data, and the image data is transmitted by the transmitting means 20 via the telephone line.

The movement and click operation of the arrow 2n using the mouse described with reference to FIG. 4, the operation of creating the area frame for designating an arbitrary area, and the like are generally known general graphical user interfaces. (GUI)
Can be realized by

On the receiving side, the compressed image data received by the receiving means 30 from the communication line is sent at any time.
The image data restoration unit 80 expands the image quality designation information according to the compression ratio, performs error correction processing according to the error correction level value incorporated in the data, and sends it to the received image storage unit 40. If the display device 1 ″ is in the reception mode, the image data restored at any time is displayed on the display device 1 ″.
It is supposed to be displayed.

A concrete description will be given with reference to FIG. 4 and FIG.
As shown in, if the areas are separated and editing parameters are specified, first, the area containing characters and having high importance (2)
Is transmitted with image quality level A and error correction B, and an image with high resolution is displayed as shown in FIG. 5, and then area (1) is transmitted with image quality level B and error correction B, as shown in FIG. The remaining area (3) of low resolution is displayed with medium resolution, and finally the remaining area (3) is transmitted with image quality level C and error correction C, and an image with low resolution is displayed as shown in FIG.

According to the still image transmitting apparatus and the transmitting method thereof of the second embodiment, the user uses the mouse in accordance with the importance of the image information, and a plurality of screens are displayed at arbitrary positions and in arbitrary sizes. The transmission order, screen quality, and error correction level are specified for each area by operation on the screen and transmitted, so important parts are transmitted first, and only the more important parts are transmitted with high resolution. Since the error correction level can be adjusted according to the state of the transmission path and the importance of information, still image transmission with good transmission efficiency can be realized, and the still image receiving side can quickly and accurately obtain the still image. There is an effect that can be grasped.

[0064]

According to the invention described in claim 1, the screen displayed on the display means by the screen dividing means is divided into a plurality of areas, and the transmission order and the screen quality are divided by the editing parameter specifying means. The editing parameters such as the level and the error correction level are designated, the image data is edited according to the editing parameters designated by the image data editing means, the editing parameters are added to the edited image data, and the transmitting means transmits and the receiving means Since the received image data is subjected to image data restoration processing according to the editing parameter received by the image data restoration means and stored in the received image storage means, the contents of the received image storage means are displayed on the display means as a still image transmission device. , The important part is transmitted first, and only the important part is transmitted with high resolution, and the error correction level depends on the state of the transmission line and the importance of information. Can be adjusted, can realize a still image transmission transmission efficiency, further receiving side of the still image has an effect that can be grasped quickly and accurately still image.

According to the second aspect of the invention, the screen dividing means divides the screen of the image input from the image input device into a plurality of areas, and the transmission order and the screen are divided for each area divided by the editing parameter specifying means. When the editing parameters of the quality level and the error correction level are specified, the error correction code according to the error correction level is added to the image data in the order of the area to be transmitted according to the parameters specified by the image data editing means, and the compression processing according to the screen quality level is performed. The transmission method of the still image transmission apparatus according to claim 1, wherein the editing process is performed, the editing parameter is added to the edited image data, and the image data to which the editing parameter is added is transmitted by the transmitting means.
The important part is transmitted first, only the important part is transmitted with high resolution, and the error correction level can be adjusted according to the state of the transmission path and the importance of the information. There is an effect that image transmission can be realized.

According to the third aspect of the invention, the image data decompression means performs the decompression processing and the error correction processing decompression processing of the image data in the order of reception according to the received editing parameters of the image data received by the receiving means, and restores them. The image data is stored in the received image storage means in sequence, and the contents of the received image storage means are sequentially displayed in the display means. Therefore, the important part is transmitted first. , And only the important part is transmitted with high resolution, and further with the error correction level according to the state of the transmission path and the importance of information, it is possible to realize still image transmission with good transmission efficiency and further The receiving side has the effect of quickly and accurately grasping the still image.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of a still image transmission apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a display example of a display device 1 ′ of the still image transmission device according to the first embodiment.

FIG. 3 is an explanatory diagram illustrating a display example of a display device 1 ′ of the still image transmission device according to the first embodiment.

FIG. 4 is an explanatory diagram showing a display example of a display device 1 ″ of the still image transmission device according to the second embodiment.

FIG. 5 is an explanatory diagram showing a display example of a display device 1 ″ of the still image transmission device according to the second embodiment.

FIG. 6 is a configuration block diagram of a conventional still image transmission device.

[Explanation of symbols]

1, 1 ', 1 "... Display device, 1a ... Operating part, 1b
... Sequence switch, 1c ... Image quality switch, 1d ... Error correction switch, 1e ... Numeric keypad part, 1f ... Transmission switch, 1g ... Reception switch, 1h ... Shutter switch, 1j ... Image part, 2a ... Operation part, 2b ... Region (1 ) Switch, 2c ... Area (2) switch, 2d
... sequence switch, 2e ... image quality switch, 2f ... error correction switch, 2g ... transmission switch, 2h ... reception switch, 2i ... image part, 2n ... arrow, 10 ... image input / storing means, 15 ... data compression means, 20 ...
Transmitting means, 30 ... Receiving means, 35 ... Data decompressing means, 40 ... Received image storing means, 50 ... Screen dividing means, 60 ... Editing parameter specifying means, 61 ... Transmission order specifying means, 62 ... Screen quality specifying means, 63 ... Error correction level designating means, 70 ... Image data editing means, 8
0 ... Image data restoration means

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H04N 1/387

Claims (3)

[Claims] 1. An image input / storage means for inputting an image from an image input device and storing it as image data, a transmitting means for transmitting the image data to a communication line, and a receiving means for receiving the image data from the communication line. In a still image transmission device having a received image storage unit for storing the received image data and a display unit for displaying the input image and the image of the received image data, a plurality of screens of the input image are displayed. Screen division means for dividing into areas, edit parameter designation means for designating editing parameters such as transmission order, screen quality level, and error correction level for each area divided by the screen division means, and designated by the edit parameter designation means The image data stored in the image input / storage means according to the edited parameter, and the edited image data is edited into the edited image data. A still image transmitting apparatus comprising: image data editing means for adding a parameter; and image data restoring means for restoring the image data received by the receiving means according to the added editing parameter. 2. The screen dividing means divides the screen of the image input from the image input device into a plurality of areas, and the editing parameter designating means divides the transmission order, the screen quality level, and the error correction level into each of the divided areas. When the edit parameter is designated, the image data editing means adds an error correction code to the image data according to the error correction level in the order of areas transmitted by the transmission order of the designated edit parameter, and compresses at the screen quality level. 2. The still image transmission according to claim 1, further comprising: performing a process edit, adding the edit parameter to the edited image data, and transmitting the image data to which the edit parameter is added. Equipment transmission method. 3. The image data decompression means performs decompression processing of image data and error correction processing in the order of reception according to the editing parameters received by the receiving means of the image data, and the restored image data is received. 2. The transmission method for a still image transmission apparatus according to claim 1, wherein the contents of the received image storage means are sequentially stored in a storage means and displayed on the display means.