US 11,798,292 B2
Driving assistant method, vehicle, and storage medium
Chih-Pu Hsu, New Taipei (TW); Jian-Cheng Lin, New Taipei (TW); Pei-Lin Chen, New Taipei (TW); Tsung-Chun Tseng, New Taipei (TW); and Chien-Chun Chang, New Taipei (TW)
Assigned to Chiun Mai Communication Systems, Inc., New Taipei (TW)
Filed by Chiun Mai Communication Systems, Inc., New Taipei (TW)
Filed on Oct. 9, 2020, as Appl. No. 17/66,894.
Claims priority of application No. 201910961129.1 (CN), filed on Oct. 11, 2019.
Prior Publication US 2021/0110181 A1, Apr. 15, 2021
Int. Cl. G06V 20/58 (2022.01); G08G 1/16 (2006.01); G08G 1/04 (2006.01); G08G 1/017 (2006.01); B60Q 9/00 (2006.01); G01S 13/931 (2020.01); G01S 15/931 (2020.01); G06T 7/62 (2017.01); G06V 20/62 (2022.01)
CPC G06V 20/584 (2022.01) [B60Q 9/008 (2013.01); G01S 13/931 (2013.01); G01S 15/931 (2013.01); G06T 7/62 (2017.01); G06V 20/62 (2022.01); G08G 1/0175 (2013.01); G08G 1/04 (2013.01); G08G 1/166 (2013.01); G01S 2013/93271 (2020.01); G06T 2207/30252 (2013.01); G06V 20/625 (2022.01)] 11 Claims
OG exemplary drawing
 
6. A first moving vehicle comprising:
a storage device;
at least one processor; and
the storage device storing one or more programs, which when executed by the at least one processor, cause the at least one processor to:
capture an image of a license plate of a second moving vehicle when the first moving vehicle is moving, and identify a first area of the license plate of the second moving vehicle in the captured image;
obtain basic information of the second moving vehicle according to a size of the first area, wherein the basic information of the second moving vehicle comprises an actual width and an actual height of the second moving vehicle, wherein the obtaining of the basic information of the second moving vehicle according to the size of the first area comprises: pre-storing an actual size of the license plate of the second moving vehicle, the actual size of the license plate comprising an actual width Bw1 and an actual height Bh1 of the license plate; calculating a width Bw2 and a height Bh2 of the first area, and identifying a second area of the second moving vehicle in the captured image, and calculating a width Cw2 and a height Ch2 of the second area; calculating a first ratio between the width Bw2 of the first area and the width Cw2 of the second area, and calculating a second ratio between the height Bh2 of the first area and the height Ch2 of the second area; and calculating the actual width Cw1 and the actual height Ch1 of the second moving vehicle according to the first ratio, the second ratio, and the actual size of the license plate; wherein Cw1=Cw2*(Bw1/Bw2); Ch1=Ch2*(Bh1/Bh2), wherein both the first area and the second area in the captured image are rectangular areas, the second area comprises an area in the captured image where goods loaded by the second moving vehicle;
obtain driving information of the first moving vehicle;
determine a safe distance between the first moving vehicle and the second moving vehicle according to the driving information of the first moving vehicle and the basic information of the second moving vehicle;
detect a distance between the first moving vehicle and the second moving vehicle; and
transmit a warning message when the distance between the first moving vehicle and the second moving vehicle is less than the safe distance.