Pose-timeline for propagating motion edits

Abstract

Motion editing often requires repetitive operations for modifying similar action units to give a similar effect or impression. This paper proposes a system for efficiently and flexibly editing the sequence of iterative actions by a few intuitive operations. Our system visualizes a motion sequence on a summary timeline with editable pose-icons, and drag-and-drop operations on the timeline enable intuitive controls of temporal properties of the motion such as timing, duration, and coordination. This graphical interface is also suited to transfer kinematical and temporal features between two motions through simple interactions with a quick preview of the resulting poses. Our method also integrates the concept of edit propagation by which the manual modification of one action unit is automatically transferred to the other units that are robustly detected by similarity search technique. We demonstrate the efficiency of our pose-timeline interface with a propagation mechanism for the timing adjustment of mutual actions and for motion synchronization with a music sequence.

Authoring motion cycles

“…One way to improve coordination is through visualization of the motion. Recently, the de facto timeline visualization has been questioned and enhanced with editable pose-icons representing the motion over the timeline [Mukai and Kuriyama 2009] and deformable spatial planes rendered directly onto the viewport [Yoo et al 2015]. In our work, the MoCurves interface allows the visualization of several aspects of the motion as well as their coordinate manipulation.…”

A Novel Framework for 3D Computer Animation Systems for Nonprofessional Users Using an Automatic Rigging Algorithm

“…However, direct motion editing requires users to perform the same procedure repeatedly for several keyframes. In [7], an editing technique called "editing by propagation" was discussed. This enables users to edit the motion for one interval, and then propagate the editing values to every similar interval of that motion.…”

“…However, this method is not immediately suitable for editing captured motion data, because the set of keyframes has not yet been specified for such motion data. In [7], this problem was solved by applying the algorithm introduced in [12] to extract a set of main poses for the given motion. Those poses are then identified as keyframes, and shown via a 2D timeline-based interface.…”

“…Those poses are then identified as keyframes, and shown via a 2D timeline-based interface. In [7], editing-by-propagation was also proposed to reduce the difficulty of the editing task, but this method offers only temporal editing, as discussed in Section 2. That is, users can change only temporal information about the motion.…”

A Novel Direct Manipulation Technique for Motion-editing using a Timeline-based Interface

“…Furthermore, if the motion to be edited is periodic or cyclic motion, or users need to create a cyclic motion from an arbitrary motion, users may need to perform similar editing operations repeatedly that is an inefficient repetition, which may be too difficult for novice users. Recently, this problem has been solved in [17]. The editing technique called "Editing Propagation" has been proposed to reduce the difficulty and completion-time for editing of cyclic motion.…”