Share on Study on the Use of Reference Objects to Convey an Impression of Dimensions Authors: Kana Matsu Meiji University, Tokyo, Japan Meiji University, Tokyo, JapanView Profile , Takanori Komatsu Meiji University, Tokyo, Japan Meiji University, Tokyo, JapanView Profile , Minoru Kobayashi Meiji University, Tokyo, Japan Meiji University, Tokyo, JapanView Profile Authors Info & Claims HAI '18: Proceedings of the 6th International Conference on Human-Agent InteractionDecember 2018 Pages 359–361https://doi.org/10.1145/3284432.3287186Published:04 December 2018Publication History 0citation33DownloadsMetricsTotal Citations0Total Downloads33Last 12 Months4Last 6 weeks1 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access

There is a growing demand for daily heart rate (HR) monitoring in the fields of healthcare, fitness, activity recognition, and entertainment. Although various HR monitoring systems have been proposed, most of these employ a wearable device, which may be a burden and disturb one's daily living.

We propose a recommendation method that considers the user's individual preference and influence from other users in social media. This method predicts the user's individual preference and influence from other users by applying the probability of divergence from random-selection based on a statistical hypothesis test as a form of modified content-based filtering. We evaluated the proposed method by focusing on the rate at which items that have recommended tags are contained among all items. The proposed method is shown to have higher accuracy than traditional content-based filtering. It is especially effective when some percentage of the items have recommendation tags.

As it is becoming more common for various handheld devices to be equipped with a camera, applications that use image recognition are increasing. Therefore, improving the usability of these devices by enhancing their image capture characteristics is becoming more important. We present ClearPlate - a new optical unit for image capture. It has a physically transparent viewfinder through which the user can observe the target directly without offset; the framed image is captured by the built-in camera. We also present a user study that evaluates ClearPlate performance in the 2D barcode acquisition task. Results show that ClearPlate significantly outperforms the camera-phone-based approach with regard to 2D barcode acquisition.

We propose a technology for manipulating the position and orientation of an object in a contactless manner over an extended range. This technology involves multiple ejectors that stream jets of compressed air onto an object from various directions. By regulating the air jet directions and flow rates, the object can be actively "force closured" and its position and orientation can be manipulated freely. As the first step of this research, in this paper, we discuss technological challenges for this method. Next we provide a preliminary investigation with one degree-of-freedom planar experimental system using a continuous and a PWM air jet ejection method. Based on this investigation, we examine problems relating to the use of three air nozzles to control the position of a cylindrical object in two degrees of planar freedom.

Capturing the user's vital signs is an urgent goal in the HCI community. Photo-plethysmography (PPG) is one approach; it can collect data from the finger tips that indicate the user's autonomic nervous system (ANS) and offers new potentials such as mental stress measurement and drowsy state detection. Our goal is to set PPG sensors on the surfaces of ordinary devices such as mice, smartphones, and steering wheels. This will offer smart monitoring without the burden of additional wearable sensors. Unfortunately, current PPG sensors are very narrow, and even if the sensor is attached to the surface of a device, the user is forced to align and hold the finger to the sensor point, which degrades device usability. To solve this problem, we propose an area-based sensing method that relaxes the alignment requirement. The proposed method uses two thin acrylic plates, a diffuser plate and a detection plate, as an IR waveguide. The proposed method can yield very thin sensing surfaces and gentle curvatures are possible. An experiment compares the proposed method to the conventional point-sensor in terms of LF/HF discrimination performance with the participant in the resting state, and the proposed method is shown to offer comparable sensing performance with superior usability.

We propose a technology for manipulating the position and attitude of an object in a contactless manner over an extended range. This technology involves multiple ejectors that stream jets of compressed air onto an object from various directions. By regulating air jet directions and volumes, the object can be actively “force closured” and its position and attitude can be manipulated freely. As the first step of this research, in this paper, we discuss its potential future applications, and summarize the technological challenges for this technology. Next we provide a preliminary investigation with one degree-of-freedom planar experimental system. Based on this investigation, we examine problems relating to the use of three air nozzles to control the position of a cylindrical object in two degrees of planar freedom.

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Browsing audio data is not as easy as browsing printed documents because of the temporal nature of sound.This paper presents a browsing environment that provides a spatial interface for temporal navigation of audio data, taking advantage of human abilities of simultaneous listening and memory of spatial location.Instead of fast-forwarding or rewinding, users browse the audio data by switching their attention between moving sound sources that play multiple portions of a single audio recording.The motion of the sound sources maps temporal position within the audio recording onto spatial location, so that listeners can use their memory of spatial location to find a specific topic.This paper describes the iterative design approach toward the audio browsing system, including the development of user interface devices.

We describe the evolution of the novel shared drawing medium ClearBoard which was designed to seamlessly integrate an interpersonal space and a shared workspace. ClearBoard permits coworkers in two locations to draw with color markers or with electronic pens and software tools while maintaining direct eye contact and the ability to employ natural gestures. The ClearBoard design is based on the key metaphor of “talking through and drawing on a transparent glass window.” We describe the evolution from ClearBoard-1 (which enables shared video drawing) to ClearBoard-2 (which incorporates TeamPaint, a multiuser paint editor). Initial observations and findings gained through the experimental use of the prototype, including the feature of “gaze awareness,” are discussed. Further experiments are conducted with ClearBoard-0 (a simple mockup), ClearBoard-1, and an actual desktop as a control. In the settings we examined, the ClearBoard environment led to more eye contact and potential awareness of collaborator's gaze direction over the traditional desktop environment.

This paper introduces a novel shared drawing medium called ClearBoard. It realizes (1) a seamless shared drawing space and (2) eye contact to support realtime and remote collaboration by two users. We devised the key metaphor: “talking through and drawing on a transparent glass window” to design ClearBoard. A prototype of ClearBoard is implemented based on the “Drafter-Mirror” architecture. This paper first reviews previous work on shared drawing support to clarify the design goals. We then examine three methaphors that fulfill these goals. The design requirements and the two possible system architectures of ClearBoard are described. Finally, some findings gained through the experimental use of the prototype, including the feature of “gaze awareness”, are discussed.

Article Integration of inter-personal space and shared workspace: ClearBoard design and experiments Share on Authors: Hiroshi Ishii View Profile , Minoru Kobayashi View Profile , Jonathan Grudin View Profile Authors Info & Claims CSCW '92: Proceedings of the 1992 ACM conference on Computer-supported cooperative workDecember 1992 Pages 33–42https://doi.org/10.1145/143457.143459Online:01 December 1992Publication History 92citation1,201DownloadsMetricsTotal Citations92Total Downloads1,201Last 12 Months10Last 6 weeks2 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access