Natural Landscape-Friendly Animation Display Technique Using Shape-Changing Artificial Grass System

Tanaka, Kosaku; Mikawa, Masahiko; Fujisawa, Makoto

doi:10.1109/smc52423.2021.9659032

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…These methods show static images on the grass, and a shape-changing grass system is needed to switch images quickly and play animations. We previously developed a grass display that can dynamically change the grass color by adjusting the grass length using two colors of grass [8], [9]. However, the current grass display cannot swiftly control the grass color linearly at 8-bit levels, and its resolution cannot be adjustable.…”

Section: Grass Displaysmentioning

confidence: 99%

“…Using this phenomenon, we previously developed the pixel structure called a grass pixel [8], [9] as shown in Figure 3(b). The pixel structure comprises a green grass pin and a yellow grass multi-slit component.…”

Section: Design and Implementation Of Grass Module A Principlementioning

confidence: 99%

“…Recently, these methods have been developed to print images on a grass surface by adjusting the grass shading or applying paint to grass [5]- [7]. Furthermore, we previously have proposed several grass display techniques to play animations [8]- [10]. In the grass techniques, the colors of artificial grass can be changed by moving grass lengths.…”

Section: Introductionmentioning

confidence: 99%

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ProgrammableGrass: A Shape-Changing Artificial Grass Display Adapted for Dynamic and Interactive Display Features

Tanaka,

Mizuno,

Kato

et al. 2024

IEEE Access

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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 greenbased interactive display device.INDEX TERMS Grass display and interface, non-luminescent displays, programmable matter, shapechanging display

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Section: Grass Displaysmentioning

confidence: 99%

Section: Design and Implementation Of Grass Module A Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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ProgrammableGrass: A Shape-Changing Artificial Grass Display Adapted for Dynamic and Interactive Display Features

Tanaka,

Mizuno,

Kato

et al. 2024

IEEE Access

Self Cite

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“…We previously proposed a green landscape-friendly display method that realizes animations on a grass surface by controlling a grass color dynamically 26 . This method focused on a grass color with dying yellow grass and lively green grass in the real world.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Grass Color Scale Display Technique Based on Grass Length for Green Landscape-Friendly Animation Display

Tanaka¹,

Kato²,

Mikawa³

et al. 2022

Preprint

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Recently, public displays such as liquid crystal displays (LCDs) are often used in urban green spaces, however, the display devices can spoil green landscape of urban green spaces because they look like artificial materials. We previously proposed a green landscape-friendly grass animation display method by controlling a pixel-by-pixel grass color dynamically. The grass color can be changed by moving a green grass length in yellow grass, and the grass animation display can play simple animations using grayscale images. In the previous research, the color scale was mapped to the green grass length subjectively, however, this method has not achieved displaying the grass colors corresponding to the color scale based on objective evaluations. Here, we introduce a dynamic grass color scale display technique based on a grass length. In this paper, we developed a grass color scale setting procedure to map the grass length to the color scale with five levels through image processing. Through the outdoor experiment of the grass color scale setting procedure, the color scale can correspond to the green grass length based on a viewpoint. After the experiments, we demonstrated a grass animation display to show the animations with the color scale using the experiment results.

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Turning carpets into multi-image switchable displays

Yamamoto¹,

Sugiura²

2023

Computers & Graphics

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Natural Landscape-Friendly Animation Display Technique Using Shape-Changing Artificial Grass System

Cited by 4 publications

References 8 publications

ProgrammableGrass: A Shape-Changing Artificial Grass Display Adapted for Dynamic and Interactive Display Features

ProgrammableGrass: A Shape-Changing Artificial Grass Display Adapted for Dynamic and Interactive Display Features

Dynamic Grass Color Scale Display Technique Based on Grass Length for Green Landscape-Friendly Animation Display

Turning carpets into multi-image switchable displays

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