AR pen and hand gestures

Proceedings of the 34th ACM/SIGAPP Symposium on Applied Computing

Kanai

2019

In this paper, we propose an interactive system for controlling the pressure while cutting paper with a knife. Our system supports skill improvement for novices by measuring and evaluating their cutting pressure in real time. In this study, we use a knife with a blade attached to a stylus with a pressure sensitive sensor, which can measure the pressure, coordinates, and cutting time. We compare the cutting pressure values of novices with those of artists and thereby observe the difference in their cutting skills. We have also developed a practice system that guides the novices on controlling the pressure by providing information on the cutting pressure values of experts. This system shows the difference in pressure between novices and experts using a synchronous display of color and sound. Using these functions, novices learn to adjust their cutting pressure according to that of experts. The purpose of this research is to improve the cutting skill of novices learning the art of paper-cutting. Instructors typically teach the novices how to control the cutting pressure during paper-cutting workshops, as novices tend to cut paper with an unstable and higher pressure than necessary. Determining the right cutting pressure is a critical skill in the art of paper-cutting, and we aim to improve the same with our system. We verify the effect of our system by practicing paper-cutting in various methods and comparing the cutting pressure values obtained. It is evident from the results that novices who practice with our system show progress on the average and variance of cutting pressures.

Section: Related Workmentioning

confidence: 99%

Stylus knife

Proceedings of the 34th ACM/SIGAPP Symposium on Applied Computing

Kanai

2019

“…Study [20] uses a method that involves cutting along a line projected on paper to support paper-cutting performance. Projector-Guided Painting [21], [22] decomposes the target painting into coarseto-fine layers. Users paint over the projection of each layer, following the guidance to orient individual brush strokes or paint all the strokes of a given color.…”

Section: Related Workmentioning

confidence: 99%

Improvement of Pressure Control Skill with Knife Device for Paper-Cutting

IEICE Trans. Inf. & Syst.

Kanai

2020

In this paper, we propose an interactive system for controlling the pressure while cutting paper with a knife. The purpose is to improve the cutting skill of novices learning the art of paper-cutting. Our system supports skill improvement for novices by measuring and evaluating their cutting pressure in real-time. In this study, we use a knife with a blade attached to a stylus with a pressure sensor, which can measure the pressure, coordinates, and cutting time. We have developed a similar support system using a stylus and a tablet device. This system allows the user to experience the pressure of experts through tracing. Paper-cutting is created by cutting paper with a knife. The practice system in this paper provides practice in an environment more akin to the production of paper cutting. In the first experiment, we observed differences in cutting ability by comparing cutting pressures between novices and experts. As a result, we confirmed that novices cut paper at a higher pressure than experts. We developed a practice system that guides the novices on controlling the pressure by providing information on the cutting pressure values of experts. This system shows the difference in pressure between novices and experts using a synchronous display of color and sound. Using these functions, novices learn to adjust their cutting pressure according to that of experts. Determining the right cutting pressure is a critical skill in the art of paper-cutting, and we aim to improve the same with our system. In the second experiment, we tested the effect of the practice system on the knife device. We compared the changes in cutting pressure with and without our system, the practice methods used in the workshop, and the previously developed stylus-based support system. As a result, we confirmed that practicing with the knife device had a better effect on the novice's skill in controlling cutting pressure than other practice methods.

“…These methods rely on a face and set of sketch recognition algorithms to generate domain-speci c instructions and textual or on-canvas feedback. In a study [21], a projector displayed images onto paper and drew lines using the projected guide to prevent distortion and misalignment, providing production support using augmented reality. In another study [12], the projector appeared to support the expression technique of overlapping colors in oil paintings.…”

Section: Production Support For Artistic Creation Activitiesmentioning

confidence: 99%

Evaluation of Skill Improvement by Combining Skill and Difficulty Levels During Paper-cutting Production

Proc. ACM Hum.-Comput. Interact.

2020

In artworks such as paper-cutting, it is important to combine the skill of the artist with the di culty of the rough sketch to improve the skill. We developed a system to measure the distances and widths of cutting lines and patterning the pictures based on the steering law. We quantitatively evaluated the di culty level of the pictures. We developed an interactive system to support the improvement of cutting pressure control, which is one of the skills for making paper-cutting. Furthermore, we analyzed users' psychological state when making a paper cutting based on the psychological ow state. The ow state is a highly focused state that tends to be shown when the user's skills balance with the di culty of the task. On the other hand, since it is di cult to analyze skills and di culty quantitatively, many researchers evaluate them by qualitative analysis. In this paper, we set "skill" as the cutting ability and "challenge" as the di culty level of the picture. We evaluated the improvement of the user's skill and the ow state through quantitative analysis. We developed a questionnaire to evaluate the psychological state of a paper-cutting process based on the existing ow state questionnaire. In this paper, we describe the changes in skill improvement due to the combination of user skill and picture di culty, with "skill" being the cutting ability and "challenge" being the di culty of the picture. CCS Concepts: • Human-centered computing → Pointing devices; User models.