Video art can be understood as a practice that treats moving image not simply as a medium for playback, but as a three-dimensional structure that contains time. The text describes video as a “Space-Time Volume / Video Cube,” meaning that an image sequence is conceived as a volumetric form extended along the time axis. Ordinary video playback is then framed as a limited sampling process: it presents this volume one frame at a time as cross-sections perpendicular to time. From this perspective, video art is concerned not only with showing recorded footage, but with working on the structure of the image itself as a temporal and spatial object.
The examples reinforce this approach. In the installation work Passing, the artist uses rotation of the video volume and transformation into parallel projection. Mid Tide #3 employs 4K120FPS and extraction of a space-time volume, while Slack Tide #1 presents multiple time axes simultaneously and uses slit-scan techniques. These works suggest that video art can reconstruct moving images physically, spatially, and temporally, expanding how viewers perceive motion, duration, and spatial change.