Method, apparatus, and system for controlling a camera, and a storage medium storing a program used with the method, apparatus and/or system

• US 7,535,493 B2
• Filed: 07/28/2003
• Issued: 05/19/2009
• Est. Priority Date: 07/22/1996
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Morita, Kenji
• Primary Examiner(s): Tran; Nhan T
• Application Number:
  US10/627,815
• Publication Number:
  US 20040027460A1
• Time in Patent Office: 2,122 Days
• Field of Search: 348/211.3, 348/211.8, 348/211.14, 348/14.05, 348/14.07, 348/333.02
• US Class Current: 348/211.3
• CPC Class Codes: H04N 23/62 Control of parameters via user interfaces
• CPC Class Codes: H04N 23/633 for displaying additional information relating to control or operation of the camera
• CPC Class Codes: H04N 23/661 Transmitting camera control signals through networks, e.g. control via the Internet
• 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

Abstract

In a camera control system for remote-controlling a video camera, a range within which the viewing direction of the video camera can be changed and the current viewing direction are displayed on a screen. A desired viewing direction to which the camera should be tilted or panned can be designated by a scroll bar. In response to the operation of the scroll bar, the camera is rotated to the designated direction. An image taken via the camera, which now faces in the new direction, is displayed on the screen of a controller in an enabled state in which the controller can access the camera, wherein a button of the scroll bar displayed on the screen moves with the change in the viewing direction of the camera. The amount of change in the viewing direction in a tilting or panning operation is adjusted in accordance with the zooming ratio so that when the viewing direction is changed, an image of an object on the screen is shifted by the same amount regardless of whether the camera is set to a wide-angle or narrow-angle zooming condition.

Claims

1. A controller for controlling a video camera, comprising:

an input unit adapted to input a designation from a client; and

a control unit adapted to control the video camera in accordance with the designation input by said input unit,

wherein, in response to said input unit inputting designations including a predetermined plurality of commands for a same operation, said control unit groups the designations and controls the video camera in accordance with at least one but not all of the predetermined plurality of commands, and

wherein in response to said input unit inputting designations not including a predetermined plurality of commands for the same operation, said control unit controls the video camera in accordance with each of the designations.

2. A controller according to claim 1, wherein, in response to the designations including a predetermined plurality of commands for the same operation, said control unit controls the video camera in accordance with the latest command of the predetermined plurality of commands.

3. A controller according to claim 1, wherein the predetermined plurality of commands are for at least one of pan, tilt, and zoom of the video camera.

4. A controller according to claim 1, further comprising a transmitting unit that transmits to other clients, in accordance with the designations, control information of the video camera.

5. A controller according to claim 1, wherein said controller is a camera server connected with the client via a network.

6. A controller according to claim 1, further comprising a transmitting unit adapted to transmit image signals of the video camera which are displayed at the client in accordance with the designations to the client.

7. A method of controlling a video camera in accordance with a designation input from a client, said method comprising the steps of:

inputting a designation from the client; and

controlling the video camera in accordance with the designation input in said inputting step,

wherein, in response to said inputting step inputting designations including a predetermined plurality of commands for a same operation, said control step groups the designations and controls the video camera in accordance with at least one but not all of the predetermined plurality of commands, and

wherein in response to said inputting step inputting designations not including a predetermined plurality of commands for the same operation, said control step controls the video camera in accordance with each of the designations.

8. A method according to claim 7, wherein, in response to the designations including a predetermined plurality of commands for the same operation, said control step includes controlling the video camera in accordance with the latest command of the predetermined plurality of commands.

9. A method according to claim 7, wherein the predetermined plurality of command are for at least one of pan, tilt, and zoom of the video camera.

10. A method according to claim 7, further comprising a transmitting step of transmitting to another client, in accordance with the designations, control information of the video camera.

11. A method according to claim 7, wherein said control step includes controlling the video camera with a camera server connected with the client via a network.

12. A method according to claim 7, further comprising a step of transmitting image signals of the video camera which are displayed at the client in accordance with the designations to the client.

13. A computer readable storage medium for storing programs executed by a controller to control a video camera in accordance with a designation input from a client, the programs including:

a program for inputting a designation from the client; and

a program for controlling the video camera in accordance with the designation input in said inputting step,

wherein, in response to inputting of designations including a predetermined plurality of commands for a same operation, the program for controlling the video camera groups the designations and controls the video camera in accordance with at least one but not all of the predetermined plurality of commands, and

wherein in response to inputting of designations not including a predetermined plurality of commands for the same operation, the program for controlling the video camera controls the video camera in accordance with each of the designations.

14. A computer readable storage medium according to claim 13, wherein, in response to the designations including a predetermined plurality of commands for the same operation, the program for controlling the video camera controls the video camera in accordance with the latest command of the predetermined plurality of commands.

15. A computer readable storage medium according to claim 13, wherein the predetermined plurality of commands are for at least one of pan, tilt, and zoom of the video camera.

16. A computer readable storage medium according to claim 13, the programs further including a program for transmitting control information of the video camera, in accordance with the designations, to another client.

17. A computer readable storage medium according to claim 13, wherein the controller is a camera server connected with the client via a network.

18. A computer readable storage medium according to claim 13, the programs further including a program for transmitting image signals of the video camera which are displayed at the client in accordance with the designations to the client.