Meanwhile, a more telling trend can also be seen.

"We encourage the greater use of drones in our lives, calling for more people to submit entries in this category," Niu says.

One prizewinning short video last year was about parkour, an extreme sport that sees the participants perform risky acrobatic moves while running, jumping and climbing.

Shot in Hong Kong, the short video highlights the cold and densely packed high-rises confined within narrow city spaces.

In the video, the youngsters, however, show their vitality by climbing, striding and running over rooftops and along pipelines, echoing the video's title, Eagle Spirit.

The name also implies the video's downward angle and camera movements, which magnifies the contrast between the oppressive side of the city and the expressive features of the young people.