Chromecast is a small streaming device for providing
videos to the big screen. Chromecast enables its user to use
their mobile device as a second screen device [1]. The second
screen allows user to use various services or interact with
playing video while watching the video on big screen for
replacing traditional remote controller [2]. Currently, wellknown
media applications of the Chromecast such as
YouTube, Viki usually use the time slider on second screen
for video navigation. The time slider is a simple and common
display unit for jumping to a specific time in a video [3].
However, the time slider does not offer easy way to access
particular contents [4]. In order to solve this problem, many
researches are focused on content-based video browsing [5]-
[6].