Display control apparatus and method

• US 9,183,556 B2
• Filed: 11/05/2009
• Issued: 11/10/2015
• Est. Priority Date: 11/07/2008
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Yoshida, Takashi
• Primary Examiner(s): Bautista, Xiomar L
• Application Number:
  US12/613,411
• Publication Number:
  US 20100118202A1
• Time in Patent Office: 2,196 Days
• Field of Search: 715/730, 715/732
• US Class Current: 1/1
• CPC Class Codes: G06Q 30/00 Commerce

Abstract

A display control apparatus that can display a video includes an inputting unit configured to input the video, a designation unit configured to designate an area in the video, a detection unit configured to detect that a coordinate in the designated area of the video has been pointed, and a display control unit configured to control a display size of a predetermined area in the video in such a manner that the display size of the predetermined area is larger when the detection unit detects that the coordinate in the designated area has been pointed than when the detection unit does not detect any pointing of the coordinate in the designated area.

Claims

1. A display control apparatus, having a processor, which controls displaying data by a first display device, comprising:

an output unit configured to output first display data to a second display device;

a receiving unit configured to receive captured image data from an image capturing device for capturing an image including a display image displayed by the second display device;

a detection unit configured to detect that a coordinate in the display image displayed by the second display device is pointed;

a motion detection unit configured to detect a predetermined motion in the image captured by the image capturing device; and

a control unit configured to give priority to a detection of the coordinate over a detection of the predetermined motion for controlling the displaying data by the first display device such that the first display data is kept selected for display by the first display device in a state while the coordinate in the display image is pointed and the captured image data is selected for displaying by the first display device when the predetermined motion is detected in a state while the coordinate in the display image is not pointed.

2. The display control apparatus according to claim 1 further comprising:

a measuring unit configured to measure a time period during which the detection unit does not detect any pointing of the coordinate in the display image,

wherein the control unit selects the captured image data for displaying by the first display device if the time period during which the detection unit does not detect any pointing of the coordinate in the display image has reached a predetermined time, in a state where the display data is selected after the detection unit detects that the coordinate in the display image has been pointed and the motion detection unit does not detect the predetermined motion.

3. The display control apparatus according to claim 1,

wherein the control unit selects the captured image data for displaying by the first display device if the motion detection unit detects the predetermined motion, in a state where the coordinate in the display image is not pointed and the display data has been displayed in accordance with a former detection of the coordinate.

4. The display control apparatus according to claim 1, wherein the detection unit detects the coordinate pointed by a laser pointer.

5. The display control apparatus according to claim 1, wherein the detection unit detects the coordinate pointed by a mouse.

6. A method for controlling a display operation to be performed by a display control apparatus which controls displaying data by a first display device, the method comprising:

outputting first display data to a second display device;

receiving captured image data from an image capturing device for capturing an image including a display image displayed by the second display device;

detecting that a coordinate in the display image displayed by the second display device is pointed;

detecting a predetermined motion in the image captured by the image capturing device; and

giving priority to a detection of the coordinate over a detection of the predetermined motion for controlling the displaying data by the first display device such that the first display data is kept selected for display by the first display device in a state while the coordinate in the display image is pointed and the captured image data is selected for displaying by the first display device when the predetermined motion is detected in a state while the coordinate in the display image is not pointed.

7. The method according to claim 6, further comprising

measuring a time period during which any pointing of the coordinate in the display image is not detected,

wherein the captured image data for displaying by the first display device is selected if the time period during which any pointing of the coordinate in the display image is not detected has reached a predetermined time, in a state where the display data is selected after it is detected that the coordinate in the display image has been pointed and the predetermined motion is not detected.

8. A non-transitory storage medium storing a program which, when executed by a computer, controls displaying data by a first display device, the program comprising:

outputting first display data to a second display device;

receiving captured image data from an image capturing device for capturing an image including a display image displayed by the second display device;

detecting that a coordinate in the display image displayed by the second display device is pointed;

detecting a predetermined motion in the image captured by the image capturing device; and

giving priority to a detection of the coordinate over a detection of the predetermined motion for controlling the displaying data by the first display device such that the first display data is kept selected for display by the first display device in a state while the coordinate in the display image is pointed and the captured image data is selected for displaying by the first display device when the predetermined motion is detected in a state while the coordinate in the display image is not pointed.

9. The program according to claim 8, further comprising:

measuring a time period during which any pointing of the coordinate in the display image is not detected,

wherein the captured image data for displaying by the first display device is selected if the time period during which any pointing of the coordinate in the display image is not detected has reached a predetermined time, in a state where the display data is selected after it is detected that the coordinate in the display image has been pointed and the predetermined motion is not detected.