# US 12,118,820 B2 · Information processing system, information processing method, and storage medium for anonymized person detection

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- Number: US 12,118,820 B2
- Document ID: US12118820B2
- Status: Granted
- Kind: B2
- Application number: 17/619,322
- Filed: 2021-01-27
- Published: 2022-03-31
- Granted: 2024-10-15
- Earliest claimed: 2020-01-27
- Assignees: NEC Corporation
- Applicants: NEC Corporation
- Inventors: Arun Chandrasekaran; Kris Ranganath; Thuan La
- Web page: https://patentgrep.com/patent/US12118820B2

## CPC

- G06V 40/164: {using holistic features}
- H04N 7/183: {for receiving images from a single remote source}
- G06V 10/255: {Detecting or recognising potential candidate objects based on visual cues, e.g. shapes}
- G06V 10/751: {Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching}
- G06V 40/161: {Detection; Localisation; Normalisation}
- G06V 40/166: {using acquisition arrangements}
- H04N 5/262: Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects {; Cameras specially adapted for the electronic generation of special effects}
- H04N 23/611: where the recognised objects include parts of the human body
- H04N 23/632: {for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters}
- H04N 23/635: {Region indicators; Field of view indicators}
- H04N 23/80: Camera processing pipelines; Components thereof
- H04N 23/617: Upgrading or updating of programs or applications for camera control
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

An apparatus includes: a memory storing one or more instructions; and a processor configured to execute the one or more instructions to: obtain a first image captured by a camera; detect one or more head patterns in the first image; identify a first head pattern, among the one or more head patterns, as a head pattern of a subject closest to the camera based on a size of the first head pattern; obtain a second image based on the identified first head pattern; and display the second image.

## Claims

### Claim 1

An apparatus comprising:
a memory storing one or more instructions; and
a processor configured to execute the one or more instructions to:
obtain a first image captured by a camera;
detect head regions in the first image;
identify a first head region, among the head regions, as a head region of a subject closest to the camera based on a size of the first head region;
obtain a second image based on the identified first head region; and
display the second image,
wherein the processor is configured to obtain the second image by:
prior to receiving consent from the subject, obtaining, as the second image, an image in which all of the head regions in the first image are covered or blurred;
determining that the subject has provided consent for a facial recognition when the subject is associated with the head region closest to the camera and is looking at the camera; and
after receiving the consent from the subject, obtaining, as the second image, an image in which all of the head regions other than the first head region in the first image are covered or blurred.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the processor is further configured to identify the first head region by comparing head sizes of the head regions, and identifying which of the head regions has a largest head size, among the head regions, as the head region of the subject closest to the camera.

### Claim 3 (depends on 1)

The apparatus of claim 1,
wherein detecting head regions in the first image is performed without performing facial recognition, and
wherein the processor is configured to process facial features of the subject for performing the facial recognition based on the consent received from the subject.

### Claim 4

A method comprising:
obtaining, by a processor, a first image captured by a camera;
detecting, by the processor, head regions in the first image;
identifying, by the processor, a first head region, among the head regions, as a head region of a subject closest to the camera based on a size of the first head region;
obtaining, by the processor, a second image based on the identified first head region; and
displaying, by the processor, the second image,
wherein obtaining the second image comprises:
prior to receiving consent from the subject, obtaining, as the second image, an image in which all of the head regions in the first image are covered or blurred;
determining that the subject has provided consent for a facial recognition when the subject is associated with the head region closest to the camera and is looking at the camera; and
after receiving the consent from the subject, obtaining, as the second image, an image in which all of the head regions other than the first head region in the first image are covered or blurred.

### Claim 5

A non-transitory storage medium storing a program that when executable by a computer causes the computer to execute:
obtaining a first image captured by a camera;
detecting head regions in the first image;
identifying a first head region, among the head regions, as a head region of a subject closest to the camera based on a size of the first head region;
obtaining a second image based on the identified first head region; and
displaying the second image,
wherein obtaining the second image comprises:
prior to receiving consent from the subject, obtaining, as the second image, an image in which all of the head regions in the first image are covered or blurred;
determining that the subject has provided consent for a facial recognition when the subject is associated with the head region closest to the camera and is looking at the camera; and
after receiving the consent from the subject, obtaining, as the second image, an image in which all of the head regions other than the first head region in the first image are covered or blurred.