JPH05328337A - Image communication terminal equipment - Google Patents

Abstract

PURPOSE:To mask a part which is not required to be displayed on an opposite terminal equipment out of an image inputted from a camera or a scanner to display. CONSTITUTION:An image communication terminal equipment having a telewriting function is provided with a masked information storing part 17 for storing data inputted from a tablet 6 as masked information when the masking of a transmission picture is specified from a user and an image information writing masking part 18 for controlling data writing in a frame memory 8 in accordance with the masked information obtained from the storing part 17. Since the masking of an unnecessary image range is specified through the tablet 6 while checking the whole image on a monitor 1, a part of the image can be hidden from a communicating receiver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image communication terminal device having a telewriting function.

[0002]

2. Description of the Related Art In recent years, it has become possible to perform various types of image processing by providing a telewriting function in image communication.

A conventional image communication terminal device will be described below with reference to the drawings. As shown in FIG. 4, a conventional image communication terminal device includes a monitor 1 for displaying an image, a camera 2 for taking a self-portrait, a scanner 3 for reading a still image, a microphone 4, a speaker 5, and a tablet for performing telewriting. 6, a key operation unit 7 for inputting a telephone number and selecting a function, a frame memory 8 for accumulating image information corresponding to each dot of the monitor 1 and sending a display signal to the monitor 1, input from the camera 2. The moving picture control unit 9 which encodes and decodes moving picture data and sends moving picture data to be written in the frame memory 8, and encodes and decodes still picture data read from the scanner 3 and stores it in the frame memory 8. Still image control unit 1 for sending out still image data for writing
0, a voice control unit 1 that encodes voice data input from the microphone 4 and decodes encoded voice data transmitted from the partner terminal and sends the decoded voice data to the speaker 5.
1. The telewriting control unit 12 and the key operation unit 7 which convert the coordinate data input from the tablet 6 into the data for telewriting (for example, line drawing or pointer data) and write the telewriting data in the frame memory 8. A display control unit 13 that selectively switches data to be written to the frame memory 8 according to an instruction, multiplexes encoded moving image data, still image data, audio data, and telewriting data, and sends the multiplexed data to and from the other party. It is composed of a multiplexing / separating unit 14 for separating data into respective data, a call control processing unit 15 for managing calls such as incoming and outgoing calls and disconnection, and a line interface 16 for connecting to a line.

With respect to the image communication terminal device including the above components, the relationship and operation of each component will be described below. First, when the telephone number of the partner terminal is set by the key operation unit 7 and the call key is pressed, the call control processor 15 establishes a line connection with the partner terminal. The moving image data, still image data, voice data, and telewriting data input from the own terminal device are multiplexed by the multiplexing / demultiplexing unit 14 and sent to the partner terminal device through the line interface 16. Also,
When the multiplexed data is received from the partner terminal, the multiplexing / demultiplexing unit 14 separates the multiplexed data into respective data, and the moving image control unit 9, the still image control unit 10, the audio control unit 11, and the telewriting control unit 12 receive the multiplexed data. Send out. The voice control unit 11 decodes the voice data and sends it to the speaker 5. The telewriting control unit 12 writes the telewriting data of the own terminal device and the partner terminal device in the frame memory 8. The moving image control unit 9 decodes the encoded moving image data received from the partner terminal device and sends it to the display control unit 13 together with the moving image data input from the own terminal device. Still image control unit 10
Decodes the encoded still image data received from the partner terminal and sends it to the display control unit 13 together with the still image data input from the own terminal. The display control unit 13 writes one or more of the moving image data and the still image data of the own terminal device and the partner terminal device in the frame memory 8 according to the instruction of the key operation unit 7. The frame memory 8 outputs display data to the monitor 1 to display an image. In this way, the user displays one or more of the moving image and the still image of the own terminal device and the moving image and the still image of the other terminal device on the monitor by inputting and selecting the desired image from the key operation unit. Can be made

[0005]

However, in the above-mentioned conventional configuration, all of the moving image captured by the camera and the still image input by the scanner are transmitted, and the background is unsuitable for transmission to the other party. There was a problem that there was inconvenience in some cases, such as when the other party did not want to know our situation.

The present invention solves the above-mentioned conventional problems, and an image communication terminal in which a portion of an image input from a camera, a scanner or the like which is not desired to be displayed on the other terminal side is masked and displayed. The purpose is to provide a device.

[0007]

In order to achieve the above object, the image communication terminal device of the present invention stores data input from a tablet as mask information when a mask instruction is given from a key operation unit, Further, a mask information storage unit that stores mask information from the partner terminal and an image information writing mask unit that controls writing of data from the display control unit to the frame memory according to the mask information obtained from the mask information storage unit are provided. It has a different configuration.

[0008]

According to the present invention, in the above-mentioned configuration, by indicating an arbitrary range of the image information transmitted from the own terminal by the tablet, the information indicating the range is transmitted to the partner terminal and the reception screen is displayed on the partner terminal. The designated range is masked and displayed, and the image data of the partner terminal is masked and displayed according to the mask information received from the partner terminal.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the image communication terminal device of this embodiment comprises a monitor 1 for displaying an image, a camera 2 for taking a self image, a scanner 3 for reading a still image, a microphone 4, a speaker 5, and telewriting. A tablet 6, a key operation unit 7 for inputting a telephone number and selecting a function, a frame memory 8 for accumulating image information corresponding to each dot of the monitor 1 and sending a display signal to the monitor 1, Encoding and decoding of moving image data input from the camera 2 and encoding and decoding of still image data read from the scanner 3 and a moving image control unit 9 that sends out moving image data to be written in the frame memory 8. A still image control unit 10 that sends out still image data to be written to the frame memory 8 together with the microphone 4
The voice control unit 11 which encodes the voice data input from the device and the encoded voice data transmitted from the partner terminal and sends the decoded voice data to the speaker 5, and the coordinate data input from the tablet 6 for telewriting Telewriting control unit 12 for converting the data into the frame memory 8 and writing the telewriting data in the frame memory 8, a display control unit 13 for selectively switching the data to be written in the frame memory 8 according to an instruction from the key operation unit 7, an encoded moving image. Multiplexing / separating unit 14 for multiplexing data, still image data, audio data, and telewriting data and sending to the other party, and separating the data sent from the other party, call management such as incoming / outgoing call, disconnection, etc. Call control processing unit 15 for performing line connection, and line interface 1 for connecting to the line
6. When a mask instruction is given by the key operation unit 7, data input from the tablet 6 is stored as mask information and a mask information storage unit 17 that stores mask information of the partner terminal, a mask obtained from the mask information storage unit 17 The image information writing mask unit 18 controls writing of moving image data and still image data of the own terminal device and the partner terminal device into the frame memory 8 of the display control unit 13 according to the information. Here, description will be given assuming that an image as indicated by the mask portion 19, the mask boundary 20, the non-mask portion 21, and the pointer 22 in FIG. 2 is transmitted and received.

With respect to the image communication terminal device including the above components, the relationship and operation of each component will be described below with reference to the flowcharts of FIGS. 1, 2 and 3. First, when it is not desired to display a part of the moving image input from the camera 2 on the partner terminal, for example, when the moving image is input from the camera 2 as shown in FIG.
A case will be described in which the mask portion 19 (the background portion of the person 21) shown in b is not desired to be displayed on the partner terminal.

The moving image data input from the camera 2 in step 1 is sent to the display control unit 13 by the moving image control unit 9 and passes through the image information writing mask unit 18 (at this time, since the user has not given the mask information, Written to the frame memory 8 (which only passes through). When the user sees the moving image displayed on the monitor 1 and there is a mask portion 19 in the portion that he / she does not want to display on the partner terminal, the user instructs the key operation portion 7 to start the moving image mask in step 2. Then, the mask portion 19 is instructed by instructing the mask boundary 20 by tracing, for example, using the pointer 21 displayed on the monitor 1 corresponding to the position of the input pen of the tablet 6. In step 3, the mask information storage unit 17 uses the data input from the tablet 6 to mask the mask unit 19.
Image information writing mask unit 1 while recognizing and accumulating
Send mask information to 8. Image information writing mask section 18
In accordance with the moving picture mask information, clears the data in the area of the frame memory corresponding to the mask section 19, and masks the writing of moving picture data from the display control section 13 to the area. Further, at this time, by writing the image information of an arbitrary pattern in the area of the frame memory 8 corresponding to the mask portion 19, it becomes possible to arbitrarily select the background, for example. In step 4, the user displays the image on the monitor 1 in step 4, and in step 6, it is displayed on the monitor 1 to check whether the image is masked according to his or her intention. If there is no problem, the user operates the key operation unit 7 to step. In step 5, the remote terminal is instructed to send a moving image. Call control processor 15
After the line is connected to the partner terminal, the multiplexer / separator 14 multiplexes the moving image data, the still image data, the voice data, the telewriting data and the mask information and transfers them to the partner terminal through the line interface. In step 8, the other terminal device demultiplexes the received data by the demultiplexing unit 14, and stores the moving picture mask information sent from the own terminal unit in the mask information storage unit 17. When the display of the moving image input from the own terminal is selected in step 9 in the partner terminal, the monitor 1 of the partner terminal is masked in step 10 according to the video mask information sent from the terminal. Is displayed.

When the mask information is received from the partner terminal, the moving image is masked and displayed on the monitor 1 of the own terminal as instructed by the partner user in the same manner as the operation of the partner terminal.

Next, in the case of masking a still image input from the scanner 3, when the key operation unit 7 gives an instruction to start masking of a still image, the same processing as that of the moving image is performed on the still image data. The still image mask information is accumulated in the mask information accumulating unit 17 and transmitted to the partner terminal, and a part of the still image received from the partner terminal is masked and displayed according to the mask information of the partner terminal.

As described above, the mask information storage unit 17
Stores the mask information of the moving image / still image of the own terminal device, the moving image / still image of the partner terminal device, and the image information writing mask unit 18
On the basis of the information, the display control unit 13 causes the frame memory 8 to display the image instructed to be displayed by the key operation unit 7.
Partial masking is possible by controlling the writing to.

Further, the procedure until the range of the image to be masked is transmitted to the partner terminal is not limited to the procedure of this embodiment as long as a coordinate input device such as a tablet is used.

[0017]

As is apparent from the above embodiments, according to the present invention, when there is an inconvenient part in the image to be transmitted, the mask portion is instructed by using the tablet to indicate the range. An excellent image communication terminal device capable of easily masking and reliably masking an image that is inconvenient or unnecessary for transmission in order to send data to the partner terminal and display it in a masked manner on the partner terminal It can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram of an image communication terminal device according to an embodiment of the present invention.

2A is a diagram showing an input image; FIG. 2B is a diagram showing a process of inputting mask information; FIG. 2C is a diagram showing an output image.

FIG. 3 is a flowchart showing the operation of the image communication terminal device of the present embodiment.

FIG. 4 is a block diagram of a conventional image communication terminal device.

[Explanation of symbols]

 1 Monitor 6 Tablet 7 Key Operation Section 8 Frame Memory 9 Video Control Section 10 Still Image Control Section 11 Voice Control Section 12 Telewriting Control Section 13 Display Control Section 14 Multiplex / Demultiplex Section 15 Call Control Processing Section 16 Line Interface 17 Mask Information Storage Part 18 Image information writing mask part

Claims (1)

[Claims] 1. A line interface for controlling communication through a line, a call control processing unit for controlling a call with a partner terminal through the line interface, and a moving image control unit for compressing, encoding and controlling moving image data. , A still image control unit that compresses, encodes and controls still image data, an audio control unit that compresses, encodes and controls audio data, and controls telewriting using coordinate data sent from a tablet. Telewriting control unit, frame memory corresponding to each dot of the monitor, display control unit for switching data to be written to the frame memory, and input from the tablet when the mask of the transmission screen is instructed by the key operation unit The mask information storage unit that stores the stored data as mask information, and The moving picture data, the still picture data, the sound data, and other data obtained from the moving picture control unit, the still picture control unit, the sound control unit, the telewriting control unit and the mask information storage unit are multiplexed and demultiplexed through the line interface. An image communication terminal device comprising: a multiplexing / demultiplexing unit for transmission / reception; and an image information writing mask unit for controlling writing of image data into the frame memory according to mask information obtained from the mask information storage unit.