Fluid interaction techniques for the control and annotation of digital video

Abstract

We explore a variety of interaction and visualization techniques for fluid navigation, segmentation, linking, and annotation of digital videos. These techniques are developed within a concept prototype called LEAN that is designed for use with pressure-sensitive digitizer tablets. These techniques include a transient position+velocity widget that allows users not only to move around a point of interest on a video, but also to rewind or fast forward at a controlled variable speed. We also present a new variation of fish-eye views called twist-lens, and incorporate this into a position control slider designed for the effective navigation and viewing of large sequences of video frames. We also explore a new style of widgets that exploit the use of the pen's pressure-sensing capability, increasing the input vocabulary available to the user. Finally, we elaborate on how annotations referring to objects that are temporal in nature, such as video, may be thought of as links, and fluidly constructed, visualized and navigated.

Evaluating Physical/Virtual Occlusion Management Techniques for Horizontal Displays

“…Various interaction techniques have been designed with occlusion in mind [17][18][19]. Hancock et al [13] improve awareness in menu placement for tabletop display by designing menus that detects user handedness.…”

“…Ramos and Balakrishnan [18] use a sinusoidal-shaped slider to reduce occlusion from the user's hand in pen-based displays. CrossY [17] uses right-to-left movement to reduce occlusion with right-handed users.…”

Effect of tilt angle of tablet on pen-based input operation based on Fitts' law

“…Buxton et al [19] explored touch-sensitive tablet input and presented an example of a painting application that employs continuous pressure sensing to control the width of the tool being used. A pressure sensitive widget [20] could provide meaningful feedbacks to make user aware of the pen's pressure. We can also find studies on the use of pressure at the user interface in [21], [22], [23].…”

A Comparison of Pressure and Tilt Input Techniques for Cursor Control

“…For example, Ramos and Balakrishnan investigated a video editing application that allows users to annotate video segments using pressure-sensitive techniques [14]. The same researchers later designed Zlider [15], which allows users to apply pressure to zoom in while performing x-y cursor movement for scrolling or sliding.…”

“…To date, pen pressure has attracted users of practical software applications (such as in Adobe Photoshop for controlling drawing width or opacity) and also HCI researchers [10], [14]- [18], [20], [23]. Studies on tilt techniques have focused mainly on the tilt of the display or input device (regardless of the angle of the pen) [12], [22], while few studies have paid attention to the tilt of the pen in relation to the screen.…”