Display control apparatus and display control method

• US 9,532,008 B2
• Filed: 10/19/2011
• Issued: 12/27/2016
• Est. Priority Date: 10/21/2010
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Ohnishi, Motoo
• Primary Examiner(s): Faulk, Devona
• Assistant Examiner(s): BEARD, CHARLES LLOYD
• Application Number:
  US13/276,923
• Publication Number:
  US 20120098854A1
• Time in Patent Office: 1,896 Days
• US Class Current: 1/1
• CPC Class Codes: G03B 21/26 Projecting separately subsidiary matter simultaneously with main image
• CPC Class Codes: G09G 2340/045 Zooming at least part of an image, i.e. enlarging it or shrinking it
• CPC Class Codes: G09G 2358/00 Arrangements for display data security
• CPC Class Codes: G09G 5/34 for rolling or scrolling
• CPC Class Codes: H04N 23/632 for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters
• CPC Class Codes: H04N 23/635 Region indicators; Field of view indicators
• CPC Class Codes: H04N 23/695 Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
• CPC Class Codes: H04N 23/698 for achieving an enlarged field of view, e.g. panoramic image capture
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Abstract

A display control apparatus includes a control unit of a client configured to specify a privacy mask zone in a panoramic area, display a graphic pattern larger than the specified privacy mask zone over the privacy mask zone, and accept an operation to shift the privacy mask zone corresponding to the displayed graphic pattern.

Claims

1. A display control apparatus comprising:

a memory;

at least one processor configured to,

control displaying, on a display, a panoramic area within which an imaging apparatus can capture an image by changing a capturing area of the imaging apparatus, a capturing area where the imaging apparatus captures an image, and a mask area within a capturing area wherein the capturing area and the mask area are displayed within the panoramic area and the mask area is for masking a part of the image captured by the imaging apparatus;

receive an operation from a client to shift a position of the mask area to be set on the panoramic area;

control a display of shifting of, according to the operation on the panoramic area received by the receiving unit, a position of the capturing area as well as the position of the mask area within the panoramic area on the display so that the mask area cannot be shifted beyond an end of the panoramic area if the capturing area reaches the end of the panoramic area, a relationship about position and size between the capturing area and the mask area being kept on the panoramic area during synchronous shifting;

a setting unit configured to set the mask area at the shifted position; and

the panoramic area is displayed on a first display area of the display and a captured image that is captured by the imaging apparatus of which a capturing direction corresponds to a position of the capturing area on the panoramic area is displayed on a second display area of the display, and the second display area is separated from the first display area, wherein the operation is received to shift a position of a mask area on a captured image displayed on the second display area, and wherein a position of the mask area on the panoramic area changes according to the operation to shift a position of a mask area on a captured image displayed on the second display area.

2. The display control apparatus according to claim 1,

wherein the capturing area indicates an area where the imaging apparatus can capture an image at one time by changing a zoom value of the imaging apparatus, and

wherein the mask area is shifted under the condition that the positional relationship of the capturing area and the mask area is kept and that the capturing area does not shift beyond the panoramic area.

3. The display control apparatus according to claim 1, wherein the display control unit controls to display the capturing area starts to be displayed on the panoramic area if a placing operation of a mouse cursor on the mask area is received by the receiving unit.

4. The display control apparatus according to claim 1, wherein the capturing area on the panoramic area starts to be displayed, if a shift operation of the mask area is received by the receiving unit.

5. The display control apparatus according to claim 1,

wherein when a first and a second mask area are displayed on the panoramic area, the capturing area including a first mask area positioned closer to a mouse cursor than a second mask area in the panoramic area is displayed, and

wherein the first mask area to is shifted according to the shift operation among the first and the second mask area, if the first mask area is positioned closer to a mouse cursor than the second mask area in the panoramic area.

6. The display control apparatus according to claim 1, a pan angle and a tilt angle of the imaging apparatus is controlled according to the direction where the mask area is shifted on the panoramic area.

7. The display control apparatus according to claim 1, wherein a capturing direction of the imaging apparatus changes corresponding to the shift of the capturing area on the panoramic area.

8. The display control apparatus according to claim 1,

wherein the panoramic area is displayed on a first display area of the display and a captured image that is captured by the imaging apparatus of which a capturing direction corresponds to a position of the capturing area on the panoramic area is displayed on a second display area of the display, and the second display area is separated from the first display area,

wherein the operation is received to shift a position of a mask area on a captured image displayed on the second display area, and

wherein a position of the mask area on the panoramic area changes according to the operation to shift a position of a mask area on a captured image displayed on the second display area.

9. The apparatus according to claim 1, wherein the captured image corresponding to the capturing area of the imaging apparatus near the panoramic area is displayed on the display, a new masked image is added at a position of the captured image as well as at a corresponding position of the mask area within the panoramic area on the display according to an operation to add a new masked image.

10. A display control method performed by a display control apparatus, the method comprising:

displaying, on a display, a panoramic area within which an imaging apparatus can capture an image by changing a capturing area of the imaging apparatus, a capturing area where the imaging apparatus captures an image, and a mask area within a capturing area wherein the capturing area and the mask area are displayed within the panoramic area and the mask area is for masking a part of the image captured by the imaging apparatus;

receiving an operation from a client to shift a position of the mask area to be set on the panoramic area;

shifting of, according to the received operation on the panoramic area so that the mask area cannot be shifted beyond an end of the panoramic area if the capturing area reaches the end of the panoramic area, a position of the capturing area as well as the position of the mask area displayed on the panoramic area, relationship about position and size between the capturing area and the mask area being kept on the panoramic area during synchronous shifting;

setting the mask area at the shifted position and the panoramic area is displayed on a first display area of the display and a captured image that is captured by the imaging apparatus of which a capturing direction corresponds to a position of the capturing area on the panoramic area is displayed on a second display area of the display, and the second display area is separated from the first display area, wherein the operation is received to shift a position of a mask area on a captured image displayed on the second display area, and wherein a position of the mask area on the panoramic area changes according to the operation to shift a position of a mask area on a captured image displayed on the second display area.

11. A non-transitory computer-readable storage medium storing a computer-executable process, the computer-executable process causing a computer that displays an image to execute a method comprising:

displaying, on a display, a panoramic area within which an imaging apparatus can capture an image by changing a capturing area of the imaging apparatus, a capturing area where the imaging apparatus captures an image, and a mask area within a capturing area wherein the capturing area and the mask area are displayed within the panoramic area and the mask area is for masking a part of the image captured by the imaging apparatus;

receiving an operation from a client to shift a position of the mask area to be set on the panoramic area;

shifting of, according to the received operation on the panoramic area so that the mask area cannot be shifted beyond an end of the panoramic area if the capturing area reaches the end of the panoramic area, a position of the capturing area as well as the position of the mask area displayed on the panoramic area, relationship about position and size between the capturing area and the mask area being kept on the panoramic area during synchronous shifting;

setting the mask area at the shifted position and the panoramic area is displayed on a first display area of the display and a captured image that is captured by the imaging apparatus of which a capturing direction corresponds to a position of the capturing area on the panoramic area is displayed on a second display area of the display, and the second display area is separated from the first display area, wherein the operation is received to shift a position of a mask area on a captured image displayed on the second display area, and wherein a position of the mask area on the panoramic area changes according to the operation to shift a position of a mask area on a captured image displayed on the second display area.