# US 5,710,590 A · Image signal encoding and communicating apparatus using means for extracting particular portions of an object image

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- Number: US 5,710,590 A
- Document ID: US5710590A
- Status: Granted
- Kind: A
- Application number: 08/418,688
- Filed: 1995-04-07
- Granted: 1998-01-20
- Earliest claimed: 1994-04-15
- Assignees: Hitachi, Ltd.
- Inventors: Kenji Ichige; Takuya Imaide; Ryuji Nishimura; Norio Yatsuda; Hiroyuki Kuriyama; Mayuko Oda
- Web page: https://patentgrep.com/patent/US5710590A

## CPC

- G06T 9/001: {Model-based coding, e.g. wire frame}
- H04N 19/20: using video object coding
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A picture communication apparatus includes an extracting circuit for extracting video data of at least one portion from video data inputted thereto, an encoder for respectively encoding the extracted video data and the remaining video data, and a multiplexer for multiplexing the encoded video data. When encoding the video data, predetermined amount of codes are allocated to the respective video data. This suppresses deterioration in the picture quality when conducting an image communication via a transmission path having a low transmission rate. The transmitted video is displayed on a contoured display.

## Claims

### Claim 1

A picture communication apparatus, comprising:
imaging means;
voice input means;
extracting means for extracting at least one portion of an image of a subject from an image produced by said imaging means;
encoding means for respectively encoding the image portion extracted by said extracting means and a voice inputted by said voice input means;
communicating means for communicating via a communication network data obtained by encoding the image portion and the voice by said encoding means;
decoding means for decoding data received from said communicating means and thereby restoring the extracted image portion and the voice;
synthesizing means for composing an image;
a display having a surface including depressions and projections for displaying the image composed by said synthesizing means;
a memory for storing information representing three-dimensional positions and sizes of constituent elements of the image to be displayed on the depressions and projections of said display;
data input/output means for transferring said information from said memory to said synthesizing means, whereby said synthesizing means synthesizes the image according to the information received from said data input/output means and the extracted image portion decoded by the decoding means to produce data representing the synthesized image which is coordinated to the depressions and projections of said display in accordance with said three-dimensional positions and sizes; and
projection means responsive to said synthesized image data for projecting a synthesized image onto said display.

### Claim 2 (depends on 1)

A picture communication apparatus according to claim 1, wherein
the image of the extracted portion is a part of a human face; and
the depressions and the projections in the surface of the display have a general contour similar to a human face.

### Claim 3 (depends on 1)

A picture communication apparatus according to claim 1, wherein the image of the extracted portion is a part of the human face of a user of a picture communication apparatus; and
the information stored in said memory represents the remaining non-extracted portion of the human face of said user.