Information processing apparatus, information display system and information display method

• US 9,285,906 B2
• Filed: 05/28/2013
• Issued: 03/15/2016
• Est. Priority Date: 05/29/2012
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Higashi, Haruomi, Miyazaki, Akira
• Primary Examiner(s): Wang-Hurst, Kathy
• Assistant Examiner(s): Shen, Peijie
• Application Number:
  US13/903,153
• Publication Number:
  US 20130321312A1
• Time in Patent Office: 1,022 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• 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 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G09G 2320/0606 Manual adjustment
• CPC Class Codes: G09G 2340/045 Zooming at least part of an image, i.e. enlarging it or shrinking it
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP

Abstract

An information processing apparatus include a position detecting unit that detects positions of a plurality of users existing in a detection target area; a calculating unit that calculates a plurality of feature quantities representing a relation between the positions of the users detected by the position detecting unit and a projection plane on which a projection image is projected; and a determining unit that determines display control processing for the projection image depending on the feature quantities calculated by the calculating unit.

Claims

1. An information processing apparatus, comprising:

circuitry to;

detect positions of a plurality of users existing in a detection target area;

calculate a plurality of feature quantities representing a relation between the positions of the users detected by the detecting and a projection plane on which a projection image is projected; and

determine display control processing for the projection image depending on the feature quantities calculated by the calculating,

wherein;

the calculating calculates, as the feature quantities, directions of the positions of the users detected by the detecting, relative to the projection plane, based on the positions of the users in the detection target area,

the determining determines the display control processing for the projection image depending on the directions of the positions of the users relative to the projection plane that are calculated by the calculating,

the calculating calculates, as the feature quantities, a position of concentrated area where the users detected by the detecting exist in a concentrated manner, relative to the projection plane, based on the positions of the users in the detection target area,

the determining determines the display control processing for the projection image depending on the position of the concentrated area relative to the projection plane that are calculated by the calculating,

the calculating calculates, when the concentrated area is reduced and a position of a user is detected outside the concentrated area but in the detection target area, a distance between the position of the user and the projection plane, as the feature quantity, and

the determining determines the display control processing for enlarging the projection image when the distance calculated by the calculating is equal to or smaller than a given distance.

2. The information processing apparatus according to claim 1, further comprising a display controller that controls display of the projection image on the projection plane in accordance with the display control processing determined by the determining.

3. The information processing apparatus according to claim 1, wherein

the calculating calculates distances between the positions of the users detected by the detecting and the projection plane, as the feature quantities, and

the determining determines the display control processing for reducing the projection image when all of the distances calculated by the calculating unit are equal to or smaller than a given distance.

4. The information processing apparatus according to claim 1, wherein

the calculating calculates distances between the positions of the users detected by the detecting and the projection plane, as the feature quantities, and

the determining determines the display control processing for enlarging the projection image when all of the distances calculated by the calculating are equal to or larger than a given distance.

5. The information processing apparatus according to claim 1, wherein the determining determines, when the users exist at one end of the detection target area in the horizontal direction of the projection plane, the display control processing for performing keystone correction so that trapezoidal projection image is wider at either right or left side.

7. The information processing apparatus according to claim 1, wherein

the detecting detects an action of the user, and

the calculating calculates a distance between the user and the plane of projection when the action of the user detected by the position detecting is a predetermined given action.

8. The information processing apparatus according to claim 1, wherein the determining determines the display control processing for the projection image depending on presence or absence of the user in a predetermined specified area included in the detection target area.

6. An information processing apparatus, comprising:

circuitry to;

detect positions of a plurality of users existing in a detection target area;

calculate a plurality of feature quantities representing a relation between the positions of the users detected by the detecting and a projection plane on which a projection image is projected; and

determine display control processing for the projection image depending on the feature quantities calculated by the calculating,

wherein;

the calculating calculates, as the feature quantities, directions of the positions of the users detected by the detecting, relative to the projection plane, based on the positions of the users in the detection target area,

the determining determines the display control processing for the projection image depending on the directions of the positions of the users relative to the projection plane that are calculated by the calculating,

the calculating calculates, when a concentrated area is reduced and a position of a user is detected outside the concentrated areas but in the detection target area, a distance between the position of the user and the projection plane, as the feature quantity,

the determining determines the display control processing for reducing the projection image when the distance calculated by the calculating unit is equal to or larger than a given distance,

the calculating calculates, as the feature quantities, a position of the concentrated area where the users detected by the position detecting exist in a concentrated manner, relative to the projection plane, based on the positions of the users in the detection target area, and

the determining determines the display control processing for the projection image depending on the position of the concentrated area relative to the projection plane that are calculated by the calculating.

11. The information processing apparatus according to claim 6, further comprising a display controller that controls display of the projection image on the projection plane in accordance with the display control processing determined by the determining.

12. The information processing apparatus according to claim 6, wherein

the calculating calculates distances between the positions of the users detected by the detecting and the projection plane, as the feature quantities, and

the determining determines the display control processing for reducing the projection image when all of the distances calculated by the calculating unit are equal to or smaller than a given distance.

13. The information processing apparatus according to claim 6, wherein

the calculating calculates distances between the positions of the users detected by the detecting and the projection plane, as the feature quantities, and

the determining determines the display control processing for enlarging the projection image when all of the distances calculated by the calculating are equal to or larger than a given distance.

14. The information processing apparatus according to claim 6, wherein the determining determines, when the users exist at one end of the detection target area in the horizontal direction of the projection plane, the display control processing for performing keystone correction so that trapezoidal projection image is wider at either right or left side.

15. The information processing apparatus according to claim 6, wherein the determining determines the display control processing for the projection image depending on presence or absence of the user in a predetermined specified area included in the detection target area.

9. An information display system, comprising:

circuitry configured to perform;

detection information detecting that detects detection information including information for detecting positions of a plurality of users existing in a detection target area;

position detecting that detects positions of the users from the detection information;

calculating that calculates a plurality of feature quantities representing a relation between the detected positions of the users and a projection plane on which a projection image is projected;

determining that determines display control processing for the projection image depending on the calculated feature quantities; and

display controlling that controls display of the projection image on the projection plane in accordance with the determined display control processing,

wherein;

the calculating calculates, as the feature quantities, directions of the positions of the users detected by the detecting, relative to the projection plane, based on the positions of the users in the detection target area,

the determining determines the display control processing for the projection image depending on the directions of the positions of the users relative to the projection plane that are calculated by the calculating,

the calculating calculates, as the feature quantities, a position of concentrated area where the users detected by the detecting exist in a concentrated manner, relative to the projection plane, based on the positions of the users in the detection target area,

the determining determines the display control processing for the projection image depending on the position of the concentrated area relative to the projection plane that are calculated by the calculating,

the calculating calculates, when the concentrated area is reduced and a position of a user is detected outside the concentrated area but in the detection target area, a distance between the position of the user and the projection plane, as the feature quantity, and

the determining determines the display control processing for enlarging the projection image when the distance calculated by the calculating is equal to or smaller than a given distance.

16. The information display system according to claim 9, wherein

the calculating calculates distances between the positions of the users detected by the detecting and the projection plane, as the feature quantities, and

the determining determines the display control processing for reducing the projection image when all of the distances calculated by the calculating unit are equal to or smaller than a given distance.

17. The information display system according to claim 9, wherein

the calculating calculates distances between the positions of the users detected by the detecting and the projection plane, as the feature quantities, and

the determining determines the display control processing for enlarging the projection image when all of the distances calculated by the calculating are equal to or larger than a given distance.

18. The information display system according to claim 9, wherein the determining determines, when the users exist at one end of the detection target area in the horizontal direction of the projection plane, the display control processing for performing keystone correction so that trapezoidal projection image is wider at either right or left side.

19. The information display system according to claim 9, wherein

the detecting detects an action of the user, and

the calculating calculates a distance between the user and the plane of projection when the action of the user detected by the position detecting is a predetermined given action.

20. The information display system according to claim 9, wherein the determining determines the display control processing for the projection image depending on presence or absence of the user in a predetermined specified area included in the detection target area.

10. An information display method, comprising:

detecting detection information including information for detecting positions of a plurality of users existing in a detection target area;

detecting positions of the users from the detection information;

calculating a plurality of feature quantities representing a relation between the detected positions of the users and a projection plane on which a projection image is projected;

determining display control processing for the projection image depending on the calculated feature quantities; and

controlling display of the projection image on the projection plane in accordance with the determined display control processing,

wherein;

the calculating calculates, as the feature quantities, directions of the positions of the users detected by the detecting, relative to the projection plane, based on the positions of the users in the detection target area,

the determining determines the display control processing for the projection image depending on the directions of the positions of the users relative to the projection plane that are calculated by the calculating,

the calculating calculates, as the feature quantities, a position of concentrated area where the users detected by the detecting exist in a concentrated manner, relative to the projection plane, based on the positions of the users in the detection target area,

the determining determines the display control processing for the projection image depending on the position of the concentrated area relative to the projection plane that are calculated by the calculating,

the calculating calculates, when the concentrated area is reduced and a position of a user is detected outside the concentrated area but in the detection target area, a distance between the position of the user and the projection plane, as the feature quantity, and

the determining determines the display control processing for enlarging the projection image when the distance calculated by the calculating is equal to or smaller than a given distance.