ProgrammableGrass (2024)
Intro Video
About
There are various proposals for employing grass materials as a green landscape-friendly display. However, it is difficult for current techniques to display smooth animations using 8-bit images and to adjust display resolution, similar to conventional displays. We present ProgrammableGrass, an artificial grass display with scalable resolution, capable of swiftly controlling grass color at 8-bit levels. This grass display can control grass colors linearly at the 8-bit level, similar to an LCD display, and can also display not only 8-bit -based images but also videos. This display enables pixel-by-pixel color transitions from yellow to green using fixed-length yellow and adjustable-length green grass. We designed a grass module that can be connected to other modules. Utilizing a proportional derivative control, the grass colors are manipulated to display animations at approximately 10 [fps]. Since the relationship between grass lengths and colors is nonlinear, we developed a calibration system for ProgrammableGrass. We revealed that this calibration system allows ProgrammableGrass to linearly control grass colors at 8-bit levels through experiments under multiple conditions. Lastly, we demonstrate ProgrammableGrass to show smooth animations with 8-bit grayscale images. Moreover, we show several application examples to illustrate the potential of ProgrammableGrass. With the advancement of this technology, users will be able to treat grass as a green-based interactive display device.
Publication
Kojiro Tanaka, Akito Mizuno, Toranosuke Kato, Masahiko Mikawa, Makoto Fujisawa. “ProgrammableGrass: A Shape-Changing Artificial Grass Display Adopted for Dynamic and Interactive Display Features”. IEEE ACCESS. Volume 12. pp. 45654 -45673. 22, March, 2024. DOI: 10.1109/ACCESS.2024.3380911
田中 康二郎, 加藤 優一, 水野 暁斗, 加藤 虎之介, 三河 正彦, 藤澤 誠. AnimatedGreenery: 芝生濃淡制御システムを用いた形状変化人工芝ディスプレイ. 第27回 一般社団法人情報処理学会シンポジウム インタラクション2023. インタラクティブ発表 (デモ) 2B-43, 2023年3月8日 – 10日.
第29回Campus Genius Contest ゲーム&インタラクション部門 優秀賞 田中 康二郎, 水野 暁斗, 加藤 虎之介, 三河 正彦, 藤澤 誠, “ProgrammableGrass”, 2024.02