JPH05207461A - Still picture hand-written conference system - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a still image handwriting conference system that allows meetings with color manuscripts, can clearly point out important points, and has little image deterioration. [Structure] A color still image displayed on a display monitor is converted into a corresponding monochrome edge image, transferred to a tablet, and a handwritten image input by pressure tracing on the tablet is combined with the color still image. Then, it is displayed on the display monitor as a new color still image. [Effect] It is possible to hold a meeting with a large amount of information as compared with a monochrome original by using a color original, clearly point out important points, suppress image deterioration, and hold a highly accurate conference.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image handwriting conference system for advancing a conference while drawing handwritten images on still images transmitted and received.

[0002]

2. Description of the Related Art Conventionally, when a conference is held while transmitting and receiving a still image between remote places, it is general to use a facsimile technique. That is, while making a voice call with a handset, if necessary, send and receive still images such as drawings by facsimile, and if necessary in the process of the meeting, add necessary items to the received facsimile recording paper by hand, Was sent back by facsimile again.

[0003]

Since the conventional still image handwriting conference system is configured as described above, all still images are performed in monochrome, and it is impossible to conduct a conference using still images of color originals. In addition, it is difficult to distinguish between the original document and the handwritten part added later, and it is difficult to clearly specify the important points, and still images are sent and received via the scanner unit and printer unit of the facsimile. Therefore, there is a problem that the image is deteriorated.

The present invention has been made in order to solve the above-mentioned problems, and enables a conference using color originals, makes it possible to clearly point out the important points, and prevents the deterioration of images. Aim to get.

[0005]

In the still image handwriting conference system according to the present invention, a monochrome edge image corresponding to the color still image displayed on the display monitor is displayed, and the color of the monochrome edge image is traced by pressure. Generate a monochrome edge image corresponding to the color still image displayed on the display monitor and the tablet that receives the handwritten image drawn on the still image, transfer it to the tablet, and combine the handwritten image input from the tablet. And an image file controller for displaying the new color still image on the display monitor.

[0006]

The image file controller according to the present invention samples the dot data arranged in a matrix of the color still image displayed on the display monitor at predetermined intervals in the vertical and horizontal directions, and the sampled dot data adjacent to each other are sampled. The color difference is calculated, the monochrome edge image corresponding to the received color still image is generated based on the calculation result, transferred to the tablet, and the pressure is traced on the tablet where the monochrome edge image is displayed. By combining the handwritten image that was created with the color still image and displaying it as a new color still image on the display monitor, it is possible to hold a conference using color originals, clearly point out the important points, and even degrade the image. To realize a still image handwriting conference system that can be prevented.

[0007]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is an integrated service digital network (hereinafter referred to as ISDN) line as a communication line for connecting terminal devices at remote locations to each other to transmit voice and color still images for a conference, and 2 is This I
An ISDN line terminating device as a line terminating device for terminating the SDN line 1 and controlling transmission and reception of the voice and the color still image.

Reference numeral 3 denotes a handset which is connected to the ISDN line terminating device 2 and which inputs / outputs voices transmitted / received to / from a partner device. Reference numeral 4 is a display monitor on which a color still image transmitted / received to / from a partner device via the ISDN line 1 is displayed, and 5 is this display monitor 4
An image input / output device for controlling input / output of a color still image to / from.

A monochromatic edge image 6 corresponding to the color still image displayed on the display monitor 4 is displayed, and pressure tracing is performed on the monochrome edge image by a stick having a pointed tip to draw and synthesize on the color still image. It is a tablet on which handwritten images are input.

Reference numeral 7 converts a color still image received from the display monitor 4 via the image input / output device 5 into a corresponding monochrome edge image and transfers it to the tablet 6, and traces the pressure on the tablet 6. This is an image file controller that combines the input handwritten image with the original color still image and displays it as a new color still image on the display monitor 4.

Reference numeral 8 is the image file controller 7
Is a color printer that is connected to and makes a hard copy of a color still image displayed on the display monitor 4 as needed.

On the tablet 6, 10 is a handwriting area in which the monochrome edge image is displayed and a handwritten image by a pressure trace is input. Also, 11 to 13
Is an operation area for the man-machine interface, 11 is an image display start area, 12 is a color still image transmitting area, and 13 is a color still image receiving area.

Next, the operation will be described. First, a document used in a conference is input from the image input / output device 5, displayed as a color still image on the display monitor 4, and if necessary, edited / processed in advance.

It is to be noted that a voice connection is made with the partner device via the ISDN line 1, a conversation is held with the receiving device by the handset 3 and a color still image is to be transmitted from now on. Prompt to touch the color still image reception area 13.

After that, when the color still image transmission area 12 of the tablet 6 is touched on the transmission side device, the transmission of the color still image displayed on the display monitor 4 is started, whereby the display side monitor 4 of the reception side device is started. The same color still image is displayed.

FIG. 2 is a flow chart showing the procedure for transmitting / receiving the color still image. First, the image image data of the color still image displayed on the display monitor 4 is transferred from the image input / output device 5 to the memory of the image file controller 7 (step ST11). The image file controller 7 compresses the data on this memory and converts it into image data having a small data size (step ST12).

Next, a line connection is established between the receiving side device and the ISDN line 1 (step ST13), whereby a line connection is made between the ISDN line terminal device 2 of the receiving side device which was in the standby state (step ST13). ST15, ST1
6). When the line is connected, the image file controller 7 sends the compressed image data to the ISDN line 1 through the ISDN line terminating device 2 (step ST1).
4).

In the receiving side device, the ISDN line terminating device 2
The image data received in step S1 is expanded by the image file controller 7 and expanded in the memory (step ST1
7) When the expansion / expansion of all the image data is completed, it is transferred to the image input / output device 5 and the display monitor 4
It is displayed above (step ST18).

Hereinafter, a conference is held by having a conversation using the handset 3 while watching the color still images displayed on the display monitor 4 of each of the transmission and reception. When it is necessary to combine a handwritten image with a color still image in the process of this conference, the image display start area 11 of the tablet 6 is touched.

As a result, a monochrome edge image corresponding to the color still image displayed on the display monitor 4 is displayed in the handwriting area 10 of the tablet 6, and a sharp stick or the like is placed on the handwriting area 10 according to the handwritten image to be input. The handwriting image is input after pressure tracing.

FIG. 3 is a flowchart showing the procedure for displaying the monochrome edge image in the handwriting area 10 of the tablet 6, and FIG. 4 is the image data of the color still image displayed on the display monitor 4 and the tablet. 6 is an explanatory diagram showing a relationship of resolution with a monochrome edge image displayed in a handwriting area 10 of FIG.

First, the image image data of the color still image displayed on the display monitor 4 is transferred from the image input / output device 5 to the memory of the image file controller 7 (step ST21).

Next, the data of 1024 dots in the horizontal direction and 768 dots in the vertical direction shown in FIG. 4 (a) in this memory are sampled every other in the horizontal direction and the vertical direction, and then, in FIG. 4 (b).
Is converted into the resolution of the handwriting area 10 of 512 dots in the horizontal direction and 384 dots in the vertical direction, and the color difference between adjacent sampled dot data is calculated and converted into monochrome 2 gradation data (step). ST2
2).

Finally, the monochrome two-gradation data is processed into an image display command for the handwriting area 10 of the tablet 6 and transferred to the tablet 6 by an RS-232C cable or the like (step ST23), and the handwriting area 10 is displayed on the display monitor. It is displayed as a monochrome edge image corresponding to the color still image displayed in FIG.

FIG. 5 is a flow chart showing the procedure for inputting a handwritten image from the tablet 6 in which the monochrome edge image is displayed in the handwriting area 10 in this way.

According to a handwritten image to be input such as characters or figures, a desired position is pressed and traced on the handwriting area 10 of the tablet 6 with a pointed stick or the like while referring to the monochrome edge image displayed there. (Step ST31).

Trajectories such as characters and figures due to the pressure trace are transferred from the tablet 6 to the image file controller 7 as coordinate data one by one (step ST
32). Image file controller 7 has a built-in C
The received coordinate data is calculated using the PU, processed into a drawing command for the image input / output device 5, and issued to the image input / output device 5 (step ST33).

The image input / output device 5 interprets the received drawing command and controls the drawing of the handwritten image on the display monitor 4 (step ST34). This allows
On the display monitor 4, the handwritten image is combined with the color still image and displayed in real time in a predetermined color (step ST35).

When a new color still image in which handwritten images are combined in this way is transmitted to the partner device, a color still image is to be transmitted from the transmitting device by a call using the handset 3 to the receiving device. Prompting the user to touch the color still image receiving area 13 of the tablet 6.

After that, when the color still image transmission area 12 is touched by the transmission side device, the color still image in which the handwritten image is combined is displayed on the display monitor 4 of the reception side device according to the procedure shown in FIG. The conference is continued while referring to it.

FIG. 6 is a flow chart showing a processing procedure for making a hard copy of the color still image displayed on the display monitor 4 in this way.

When it is necessary to leave the color still image displayed on the display monitor 4 in the course of the conference using the color still image, first, the image of the color still image displayed on the display monitor 4 is displayed. The image data is transferred from the image input / output device 5 to the memory of the image file controller 7 (step ST41).

Next, the image file controller 7 processes the image image data on the memory into the data format of the color printer 8 (step ST42), outputs it to the color printer 8 and prints it on recording paper (step ST43). ). This allows a record of the meeting to remain as a color still image.

Example 2. In the first embodiment described above, the case where the transmitting side sends a color still image in which handwritten images are combined in advance to the receiving side and displays it on the display monitor 4 is described. However, the same color still image is sent and received by the display monitor. It is also possible to display it on the display 4 and to combine the handwritten image input from the tablet 6 on the transmitting side with the color still image on the display monitors 4 on both the transmitting and receiving sides in real time.

FIG. 7 is a plan view showing a tablet 6 used in such an embodiment. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In the figure, 14 is a handwriting receiving area that is touched when receiving a handwritten image in real time, and 15 is a handwriting transmitting area that is touched when transmitting a handwritten image in real time.

Next, the operation will be described. In this case, the color still images used in the conference are transmitted to each other in advance, and both are stored in the disk device of the image file controller 7 or the like.
The same color still image is displayed on the display monitor 4 in a call using.

Next, the handwriting receiving area 14 of the tablet 6 is prompted to be touched by the side transmitting the handwritten image, and then the handwriting transmitting area 15 of the tablet 6 is touched. After that, the locus of the handwritten image input from the handwriting area 10 of the transmitting side tablet 6 is displayed in real time on the transmitting side display monitor 4 and also in real time on the receiving side display monitor 4.

FIG. 8 is a flow chart showing the procedure of the processing. First, as in the case of the first embodiment shown in FIG. 5, the handwritten image input from the handwriting area 10 of the tablet 6 on the transmitting side is transferred to the image file controller 7 and drawn by the image input / output device 5. Are processed (steps ST51 to ST53).

This drawing command is transmitted from the ISDN line terminating device 2 to the image file controller 7 of the partner device via the ISDN line 1 (step ST54).
The image file controller 7 on the receiving side issues the received drawing command to the image input / output device 5 (step S
T57).

The image input / output device 5 interprets the received drawing command and controls the display monitor 4 (step ST58), and the handwritten image is composite-displayed on the display monitor 4 in real time in a predetermined color. Yes (step ST59).

On the other hand, on the transmitting side, the image input / output device 5 which receives the drawing command issued by the image file controller 7 interprets the drawing command and controls the display monitor 4 (step ST55), and the display monitor 4 A handwritten image is overlaid and displayed in real time on a predetermined color (step ST56).

As a result, it is possible to hold a conference while drawing a handwritten image on the color still image displayed on the display monitor 4 in real time.

[0043]

As described above, according to the present invention, a color still image displayed on a display monitor is converted into a corresponding monochrome edge image, transferred to a tablet, and pressure traced on the tablet. By combining the handwritten image input by the above with the color still image,
Since it is configured to display it as a new color still image on the display monitor, it is possible to have a meeting with a large amount of information compared to a monochrome original made of color originals, an important point can be clearly pointed out, and image deterioration There is an effect that a still image handwriting conference system capable of conducting highly accurate conferences can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a flowchart showing a color still image transfer procedure according to the embodiment.

FIG. 3 is a flowchart showing a procedure for displaying a monochrome edge image on the tablet of the above embodiment.

FIG. 4 is an explanatory diagram showing a relationship between resolutions of a color still image and a monochrome edge image in the above embodiment.

FIG. 5 is a flowchart showing a procedure for drawing and synthesizing a handwritten image in the embodiment.

FIG. 6 is a flowchart showing a hard copy creation procedure of the above embodiment.

FIG. 7 is a plan view showing a tablet according to Embodiment 2 of the present invention.

FIG. 8 is a flowchart showing an operation procedure of the above embodiment.

[Explanation of symbols]

 1 communication line (ISDN line) 2 line terminating device (ISDN line terminating device) 3 handset 4 display monitor 5 image input / output device 6 tablet 7 image file controller

Claims (1)

[Claims] 1. A line terminating device connected to a communication line to control transmission / reception of voice and color still images, a handset connected to the line terminating device to input / output the voice, and the line terminating device. A display monitor on which a color still image transmitted and received via a partner device is displayed, an image input / output device for controlling input / output of the color still image to / from the display monitor, and a display monitor displayed on the display monitor. A monochrome edge image corresponding to the color still image is displayed, and a tablet on which a handwritten image to be drawn on the color still image is input by tracing the pressure on the monochrome edge image, and the tablet via the image input / output device. The color still image received from the display monitor is converted into a monochrome edge image corresponding to it, and the tab is converted. Still image handwriting conference equipped with an image file controller that transfers a new color still image obtained by synthesizing the handwritten image input from the tablet to the display monitor via the image input / output device, while transferring the image to the display monitor. system.