US 11,922,614 B2
Welding condition setting assistance device
Akinobu Kondou, Kyoto (JP); Yasuhiro Kinugasa, Osaka (JP); and Kaede Kunimaru, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Nov. 22, 2021, as Appl. No. 17/532,841.
Application 17/532,841 is a continuation of application No. PCT/JP2020/021553, filed on Jun. 1, 2020.
Claims priority of application No. 2019-106355 (JP), filed on Jun. 6, 2019.
Prior Publication US 2022/0084192 A1, Mar. 17, 2022
Int. Cl. G06T 7/00 (2017.01); B23K 9/095 (2006.01); G06T 7/70 (2017.01)
CPC G06T 7/0004 (2013.01) [B23K 9/0956 (2013.01); G06T 7/70 (2017.01); G06T 2207/10016 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/30164 (2013.01); G06T 2207/30242 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A welding condition setting assistance device that assists setting of a welding condition of arc welding when the arc welding is performed by generating an arc between a workpiece and an electrode by applying a voltage between the workpiece and the electrode, the device comprising
an image processing unit that performs:
a spatter detection step of detecting a spatter from each of a plurality of input images constituting a moving image of the workpiece, the spatter being an area included in the input image, the area including a plurality of continuous pixels each having a pixel value exceeding a predetermined threshold, the pixel value indicating a brightness, the moving image being generated by capturing the workpiece during the arc welding;
a background bright spot identification step of identifying, as a background bright spot, a position collocated in the plurality of input images in the moving image, the position being a position at which a number of times of the detection in the spatter detection step for the plurality of input images is equal to or more than a predetermined reference number of times; and
a spatter number identification step of identifying, for one of the plurality of input images, a number of spatters excluding spatters each corresponding to the background bright spot identified by the background bright spot identification step among the spatters detected by the spatter detection processing.