Computer system that enters control information by means of video camera

• US 5,617,312 A
• Filed: 11/18/1994
• Issued: 04/01/1997
• Est. Priority Date: 11/19/1993
• Status: Expired due to Term

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Hitachi, Ltd.
• Inventors: Yamamoto, Naoki, Kudo, Yoshimichi, Imaide, Takuya, Ichige, Kenji, Iura, Noriyuki
• Primary Examiner(s): Envall, Jr., Roy N.
• Assistant Examiner(s): Garland, Steven R.
• Application Number:
  US08/343,962
• Time in Patent Office: 865 Days
• Field of Search: 345/156-158, 364/188-190, 364/148, 364/516, 364/559, 382/291, 358/453
• US Class Current: 700/83
• CPC Class Codes: A63F 2300/1093 using visible light
• CPC Class Codes: A63F 2300/69 Involving elements of the real world in the game world, e.g. measurement in live races, real video
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042

Abstract

A computer system replaces an input device, such as a mouse, with a video camera having an image recognizing function and an image extracting function to detect motions of the operator'"'"'s body directly, and controls a computer apparatus to move a cursor and check on an icon on the basis of the output signals of the video camera. The computer system controls the computer apparatus also on the basis of a signal provided by the video camera upon the detection of light emitted by a particular object. The computer system is capable of making the computer apparatus understand an operator'"'"'s intention without using any conventional input device, such as a mouse, and of facilitating an operator'"'"'s input operation.

Claims

1. A computer system for carrying out control operations according to operator'"'"'s actions, said computer system comprising:

an imaging device for picking up an image of a subject and generating an image signal representing the image of the subject;

an image extracting circuit for extracting a plurality of areas meeting given conditions from the image represented by the image signal provided by the imaging device, and providing position data representing the positions of the extracted areas;

a position examining means for determining whether or not the positions of the extracted areas represented by the position data are within a plurality of predetermined detection areas, respectively; and

a computer apparatus for carrying out a plurality of control operations specified by the detection areas on the basis of a plurality of results of the determinations corresponding to each predetermined detection area made by the position examining means.

2. A computer system according to claim 1, further comprising a display for displaying images represented by input signals given thereto, wherein the computer apparatus supplies a signal representing a character to the display to instruct the display to display an image of the character, and controls the display according to results of examination made by the position examining means to move a plurality of portions of a image of the character.

3. A video camera comprising:

an imaging device for picking up an image of a subject and generating an image signal representing the image of the subject;

an image extracting circuit for extracting a plurality of areas meeting given conditions from the image signal provided by the imaging device, and providing position data representing positions of extracted areas;

a position examining means for determining whether or not the positions of the extracted areas represented by the position data are within a plurality of predetermined areas, respectively; and

a communication means for sending out operation signals indicating each determination corresponding to each predetermined area made by the position examining means.

4. A video camera according to claim 3, wherein the areas extracted by the image extracting circuit are particular portions of an operator'"'"'s body.