Search

US-20260129287-A1 - IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY RECORDING MEDIUM

US20260129287A1US 20260129287 A1US20260129287 A1US 20260129287A1US-20260129287-A1

Abstract

Provided are: an image acquisition unit that acquires an image captured such that a light emitting area in which light is emitted in a dark place is included in an angle of view; a determination unit that determines whether or not to switch a mode of power consumption in accordance with a light emitting state of the light emitting area included in the image; and a switching unit that switches the mode of power consumption in accordance with a determination result of the determination unit.

Inventors

  • Kazuo Sugimoto

Assignees

  • NEC CORPORATION

Dates

Publication Date
20260507
Application Date
20260106

Claims (7)

  1. 1 . An image processing apparatus comprising: at least one memory that is configured to store instructions; and at least one processor that is configured to execute the instructions to: acquire an image captured from a camera that generates the image by imaging an imaging target area such that a light emitting area in which light is emitted in a dark place is included in an angle of view; determine whether or not to switch a mode of power consumption in accordance with a light emitting state of the light emitting area included in the image; and switch the mode of power consumption in the image processing apparatus from a first mode to a second mode in which power consumption is less than that in the first mode, in a case where a size of the light emitting area included in the image is greater than or equal to a first threshold in accordance with a determination result, wherein a frame rate of the camera in the first mode is higher than that of the camera in the second mode.
  2. 2 . The image processing apparatus according to claim 1 , wherein the at least one processor is configured to execute the instructions to: perform a face recognition operation using a face image included in the image; and stop the face recognition operation in the second mode.
  3. 3 . The image processing apparatus according to claim 2 , wherein the at least one processor is configured to execute the instructions to: determine to switch the mode of the power consumption from the second mode to the first mode in a case where the size is less than a second threshold; and start the face recognition operation in a case of switching the mode of power consumption to the first mode.
  4. 4 . The image processing apparatus according to claim 1 , wherein the at least one processor is configured to execute the instructions to determine to switch the first mode to the second mode in a case where a period in which the size is greater than or equal to the first threshold continues for a predetermined period or longer.
  5. 5 . The image processing apparatus according to claim 1 , wherein a horizontal width of the light emitting area accounts for a predetermined ratio or more of a horizontal width of the image.
  6. 6 . An image processing method comprising: acquiring an image captured from a camera that generates the image by imaging an imaging target area such that a light emitting area in which light is emitted in a dark place is included in an angle of view; determining whether or not to switch a mode of power consumption in accordance with a light emitting state of the light emitting area included in the image; and switching the mode of power consumption from a first mode to a second mode in which power consumption is less than that in the first mode, in a case where a size of the light emitting area included in the image is greater than or equal to a first threshold in accordance with a determination result, wherein a frame rate of the camera in the first mode is higher than that of the camera in the second mode.
  7. 7 . A non-transitory recording medium on which a computer program that allows a computer to execute an image processing method is recorded, the image processing method including: acquiring an image captured from a camera that generates the image by imaging an imaging target area such that a light emitting area in which light is emitted in a dark place is included in an angle of view; determining whether or not to switch a mode of power consumption in accordance with a light emitting state of the light emitting area included in the image; and switching the mode of power consumption from a first mode to a second mode in which power consumption is less than that in the first mode, in a case where a size of the light emitting area included in the image is greater than or equal to a first threshold in accordance with a determination result, wherein a frame rate of the camera in the first mode is higher than that of the camera in the second mode.

Description

This application is a continuation application of U.S. patent application Ser. No. 18/720,713 filed on Jun. 17, 2024, which is a National Stage Entry of PCT/JP2021/048531 filed on Dec. 27, 2021, the contents of all of which are incorporated herein by reference, in their entirety. TECHNICAL FIELD This disclosure relates to technical fields of an image processing apparatus, an image processing method, and a recording medium. BACKGROUND ART Patent Literature 1 describes: executing an authentication repeating process of repetitively executing an authentication process after determining, by an authentication process, conformity of control of an object authentication device carrying out the authentication process of authenticating an object on the basis of a photograph image of the object photographed by a photographing means, a repeating stop instruction receiving process of receiving a repeating stop instruction for stopping repeating of the authentication process by an input means, an authenticity determining process of carrying out authenticity determination by comparing the received repeating stop instruction with a preregistered normal instruction, and a repeating stopping process of stopping the authentication repeating process when a determination result of the authenticity determining process is true; improving reliability of security with respect to impersonation/spoofing; and suppressing electric power consumption. Furthermore, Patent Literature 2 describes the following matters: an intruder detection apparatus is configured such that monitoring is performed by a black-and-white monitor camera capable of shooting only a portion provided within an intrusion prohibited area which has a transparent window surface as a part and irradiated with infrared rays; in the intruder detection apparatus, an infrared ray irradiator for irradiating the infrared rays along near the transparent window surface part at the outside of the intrusion prohibited area is provided; and in a case where a person irradiated with the infrared rays is imaged by the black-and-white monitor camera and the presence of an imaged person is detected by image processing, and then, in a case where it is determined that the person is in a state of staying for a predetermined time, the person is determined to be an intruder. Furthermore, Patent Literature 3 describes: acquiring feature quantity information as identification information for security from images taken by cameras; utilizing the feature quantity information for an authentication process for area security; and determining the area security in a designated area on the basis of the feature quantity information. CITATION LIST Patent Literature Patent Literature 1: JP2006-259922APatent Literature 2: JPH10-83487APatent Literature 3: JP2010-198207A SUMMARY Technical Problem It is an example object of this disclosure to provide an image processing apparatus, an image processing method, and a recording medium that aim to improve the techniques/technologies disclosed in Citation List. Solution to Problem An image processing apparatus according to an example aspect of this disclosure includes: an image acquisition unit that acquires an image captured such that a light emitting area in which light is emitted in a dark place is included in an angle of view; a determination unit that determines whether or not to switch a mode of power consumption in accordance with a light emitting state of the light emitting area included in the image; and a switching unit that switches the mode of power consumption in accordance with a determination result of the determination unit. An image processing method according to an example aspect of this disclosure includes: acquiring an image captured such that a light emitting area in which light is emitted in a dark place is included in an angle of view; determining whether or not to switch a mode of power consumption in accordance with a light emitting state of the light emitting area included in the image; and switching the mode of power consumption in accordance with a determination result. A recording medium according to an example aspect of this disclosure is a recording medium on which a computer program that allows a computer to execute an image processing method is recorded, the image processing method including: acquiring an image captured such that a light emitting area in which light is emitted in a dark place is included in an angle of view; determining whether or not to switch a mode of power consumption in accordance with a light emitting state of the light emitting area included in the image; and switching the mode of power consumption in accordance with a determination result. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a block diagram illustrating a configuration of a face recognition apparatus in a first example embodiment. FIG. 2 is a schematic diagram of an unlocking system in a second example embodiment. FIG. 3 is a schematic diagram of an image