US 11,908,298 B2
Smoke detection system and smoke detection method
Jia-yo Hsu, Taipei (TW); and Wei-Chung Cheng, Taipei (TW)
Assigned to VIA TECHNOLOGIES, INC., Taipei (TW)
Filed by VIA Technologies, Inc., Taipei (TW)
Filed on May 9, 2022, as Appl. No. 17/739,225.
Claims priority of application No. 110145827 (TW), filed on Dec. 8, 2021.
Prior Publication US 2023/0177938 A1, Jun. 8, 2023
Int. Cl. G08B 17/12 (2006.01); G06T 7/11 (2017.01); G06T 7/174 (2017.01); G08B 29/18 (2006.01)
CPC G08B 17/125 (2013.01) [G06T 7/11 (2017.01); G06T 7/174 (2017.01); G08B 29/186 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A smoke detection system, comprising:
a camera configured to acquire a current image and a previous image;
a storage unit configured to store a plurality of modules; and
a processor coupled with the camera and configured to execute the plurality of modules to:
generate a difference image based on the current image and the previous image;
input the current image and the difference image to a semantic segmentation model so that the semantic segmentation model outputs a smoke confidence map, wherein the smoke confidence map is generated based on whether a current environment is a dark environment or a bright environment; and
analyze the smoke confidence map to determine whether a smoke event occurs in the current image.