What kind of traditional Chinese folk craft is used in the "flying needle walking thread" poster of "China's Captain"?

The "Flying Needle Walking Thread" poster in the poster of "Captain China" utilizes embroidery, a traditional Chinese folk craft. Embroidery is one of the traditional Chinese handicrafts, which uses colorful silk threads to embroider various designs and words on fabric. In the poster, the embroidery technique is applied to the ocean motif to express the tense scene in the movie where the plane makes an emergency landing at sea. The use of this traditional craft makes the poster more rich in traditional cultural characteristics and gives people a unique visual experience.