Invention Grant
- Patent Title: Security camera and motion detecting method for security camera
-
Application No.: US16937612Application Date: 2020-07-24
-
Publication No.: US11893753B2Publication Date: 2024-02-06
- Inventor: Kevin Len-Li Lim , Joon Chok Lee , Zi Hao Tan , Ching Geak Chan , Keen-Hun Leong
- Applicant: PixArt Imaging Inc.
- Applicant Address: TW Hsin-Chu
- Assignee: PixArt Imaging Inc.
- Current Assignee: PixArt Imaging Inc.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu
- Priority: MY 2019004948 2019.08.27
- Main IPC: G06T7/20
- IPC: G06T7/20 ; H04N7/18 ; G06T7/254 ; G06T7/246

Abstract:
A security camera with a motion detection function, which comprises: an image sensor, configured to capture original images; a variation level computation circuit, configured to compute image variation levels of the original images; a long term computation circuit, configured to calculate a first average level for the image variation levels corresponding to M of the original images; a short term computation circuit, configured to calculate a second average level for the image variation levels corresponding to N of the original images, wherein M>N; and a motion determining circuit, configured to determine whether a motion of an object appears in a detection range of the image sensor according to a relation between the first average level and the second average level. By such security camera, the interference caused by noise or small object can be avoided. Accordingly, the motion detection of the security camera can be more accurate.
Public/Granted literature
- US20210065385A1 SECURITY CAMERA AND MOTION DETECTING METHOD FOR SECURITY CAMERA Public/Granted day:2021-03-04
Information query