Image motion detection apparatus and method for determining a parameter for detecting a moving object in a moving image and computer readable medium having encoded thereon a program instructing a computer to perform the method

• US 8,654,199 B2
• Filed: 07/06/2010
• Issued: 02/18/2014
• Est. Priority Date: 09/03/2003
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Oya, Takashi, Fukasawa, Toshihiko
• Primary Examiner(s): SELBY, GEVELL V
• Application Number:
  US12/830,485
• Publication Number:
  US 20100272323A1
• Time in Patent Office: 1,323 Days
• Field of Search: 348152-154, 348/169, 34820801-20804, 348/222.1
• US Class Current: 348/208.1
• CPC Class Codes: G06T 7/20 Analysis of motion motion estimation for coding, decoding, compressing or decompressing digital video signals H04N19/43, H04N19/51
• CPC Class Codes: G08B 13/19602 Image analysis to detect motion of the intruder, e.g. by frame subtraction
• CPC Class Codes: G08B 13/19604 involving reference image or background adaptation with time to compensate for changing conditions, e.g. reference image update on detection of light level change
• CPC Class Codes: G08B 13/19667 Details realated to data compression, encryption or encoding, e.g. resolution modes for reducing data volume to lower transmission bandwidth or memory requirements
• CPC Class Codes: G08B 13/19669 Event triggers storage or change of storage policy
• CPC Class Codes: G08B 13/19671 Addition of non-video data, i.e. metadata, to video stream
• CPC Class Codes: G08B 13/19676 Temporary storage, e.g. cyclic memory, buffer storage on pre-alarm
• CPC Class Codes: G08B 13/1968 Interfaces for setting up or customising the system
• CPC Class Codes: G08B 13/19682 Graphic User Interface [GUI] presenting system data to the user, e.g. information on a screen helping a user interacting with an alarm system
• CPC Class Codes: G08B 13/19691 Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: G11B 27/3045 superimposed on the recorded main signal, e.g. burn-in-time code
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• CPC Class Codes: H04N 7/181 : for receiving images from a plurality of remote sources
• CPC Class Codes: H04N 9/8042 : involving data reduction
• CPC Class Codes: H04N 9/8047 : using transform coding

Abstract

In a display apparatus connected to an image processing apparatus which detects the change amount in an input image and stores, as a detected image, an image during a period with a change amount equal to or more than a predetermined amount, the change log of the change amount and the detected image are received, the change log is displayed by using a graph, and information related to the detected image is displayed on the graph in a superposed manner.

Claims

1. An image motion detection apparatus comprising:

an acquiring device that acquires a moving image input from a camera; and

a determination device that determines a parameter for detecting a moving object in the moving image on the basis of the moving image acquired by the acquiring device and that determines that the determination of the parameter for detecting the moving object fails if a predetermined camera control for the camera is executed during the determination of the parameter.

4. The image motion detection apparatus according to claim 1, further comprising:

a displaying device that displays a message indicating that the determination of the parameter for detecting the moving object has failed.

5. The image motion detection apparatus according to claim 1, wherein the predetermined camera control includes controlling at least one of a pan angle, a tilt angle, zooming, focus, gain, exposure, aperture, shutter speed, and white balance of the camera.

6. The image motion detection apparatus according to claim 1, wherein the parameter for detecting the moving object in the moving image is a threshold of a change amount between the moving image and a reference image.

2. An image motion detection method comprising:

an acquiring step of acquiring a moving image input from a camera; and

a determination step of determining a parameter for detecting a moving object in the moving image on the basis of the moving image acquired by the acquiring device and determining that the determination of the parameter for detecting the moving object fails if a predetermined camera control for the camera is executed during the determination of the parameter.

7. The image motion detection method according to claim 2, further comprising:

a displaying step of displaying a message indicating that the determination of the parameter for detecting the moving object has failed.

8. The image motion detection method according to claim 2, wherein the camera control includes controlling at least one of a pan angle, a tilt angle, zooming, focus, gain, exposure, aperture, shutter speed, and white balance of the camera.

9. The image motion detection method according to claim 2, wherein the parameter for detecting the moving object in the moving image is a threshold of a change amount between the moving image and a reference image.

3. A non-transitory computer-readable medium having encoded thereon an image motion detection program comprising a set of instructions instructing a computer to implement a method for detecting motion in a moving image, the program comprising:

computer-executable instructions for acquiring a moving image input from a camera; and

computer-executable instructions for determining a parameter for detecting a moving object in the moving image on the basis of the acquired moving image and determining that the determination of the parameter for detecting the moving object fails if a predetermined camera control for the camera is executed during the determination for the parameter.

10. The medium according to claim 3, wherein the program further comprises:

computer-executable instructions for displaying a message indicating that the determination of the parameter for detecting the moving object has failed.

11. The medium according to claim 3, wherein the camera control includes controlling at least one of a pan angle, a tilt angle, zooming, focus, gain, exposure, aperture, shutter speed, and white balance of the camera.

12. The program according to claim 3, wherein the parameter for detecting the moving object in the moving image is a threshold of a change amount between the moving image and a reference image.

13. An image motion detection apparatus comprising:

an acquiring device that acquires a moving image input from a camera;

a determination device that determines a parameter for detecting a moving object in the acquired moving image such that the moving object is detected based on a comparison of the determined parameter with a difference between the acquired moving image and a reference image; and

an outputting device that outputs a message that indicates the parameter was not determined by the determination device.

14. The image motion detection apparatus according to claim 13, further comprising:

an accepting device that accepts an instruction to determine the parameter,

wherein the outputting device outputs the message, when the parameter was not determined by the determination device in responding to the accepted instruction.

15. The image motion detection apparatus according to claim 13, wherein the outputting device outputs the message when a predetermined number of frames was not acquired by the acquiring device.

16. An image motion detection method comprising:

an acquiring step of acquiring a moving image input from a camera;

a determination step of determining a parameter for detecting a moving object in the acquired moving image such that the moving object is detected on the basis of a comparison of the determined parameter with a difference between the acquired moving image and a reference image; and

an outputting step of outputting a message that indicates the parameter was not determined at the determination step.

17. The image motion detection method according to claim 16, further comprising:

an accepting step of accepting an instruction to determine the parameter,

wherein, the outputting step outputs the message, when the parameter was not determined at the determination step in responding to the accepted instruction.

18. The image motion detection method according to claim 16, wherein the outputting step outputs the message when a predetermined number of frames was not acquired at the acquiring step.

19. A non-transitory computer-readable medium which stores a computer program which causes a computer to execute an image motion detection method, the program comprising:

computer-executable instructions for acquiring a moving image input from a camera;

computer-executable instructions for determining a parameter for detecting a moving object in the acquired moving image such that the moving object is detected based on a comparison of the determined parameter with a difference between the acquired moving image and a reference image; and

computer-executable instructions for outputting a message that indicates the parameter was not determined.

20. The medium according to claim 19, the program further comprising:

computer-executable instructions for accepting an instruction to determine the parameter; and

computer-executable instructions for outputting the message, when the parameter was not determined in response to accepting the instruction.

21. The medium according to claim 19, the program further comprising:

computer-executable instructions for outputting the message when a predetermined number of frames was not acquired.