Developments in networked digital imaging promise to substantially affect the near-universal experience of personal photography. Designing technology for image capture and sharing requires an understanding of how people use photos as well as how they adapt emerging technology to their photographic practices, and vice versa. In this paper, we report on an empirical study of the uses made of a prototype context-aware cameraphone application for mobile media sharing, and relate them to prior work on photographic practices. By reducing many of the barriers to cameraphone use and image sharing (including increasing image quality, easing the sharing process, and removing cost barriers), we find that users quickly develop new uses for imaging. Their innovative communicative uses of imaging are understandable in terms of the social uses identified from prior photographic activity; new functional uses are developing as well.

In this paper we describe the design and implementation of a mobile phone picture sharing system MobShare that enables immediate, controlled, and organized sharing of mobile pictures, and the browsing, combining, and discussion of the shared pictures. The design combines research on photography, personal image management, mobile phone camera use, mobile picture publishing, and an interview study we conducted on mobile phone camera users. The system is based on a client-server architecture and uses current mobile phone and web technology. The implementation describes novel solutions in immediate sharing of mobile images to an organized web album, and in providing full control over with whom the images are shared. Also, we describe new ways of promoting discussion in sharing images and enabling the combination and comparison of personal and shared pictures. The system proves that the designed solutions can be implemented with current technology and provides novel approaches to general issues in sharing digital images. Categories and Subject Descriptors H.5.1 [Information interfaces and presentation (e.g., HCI)]:

Interesting characteristics of large-scale events are their spatial distribution, their extended duration over days, and the fact that they are set apart from daily life. The increasing pervasiveness of computational media encourages us to investigate such unexplored domains, especially when thinking of applications for spectator groups. Here we report of a field study on two groups of rally spectators who were equipped with multimedia phones, and we present a novel mobile group media application called mGroup that supports groups in creating and sharing experiences. Particularly, we look at the possibilities of and boundary conditions for computer applications posed by our findings on group identity and formation, group awareness and coordination, the meaningful construction of an event experience and its grounding in the event context, the shared context and discourses, protagonism and active spectatorship. Moreover, we aim at providing a new perspective on spectatorship at large scale events, which can make research and development more aware of the socio-cultural dimension.

Cameraphones show the potential to revolutionize personal photography. We gave cameraphones linked to an Internetbased uploading and sharing system (MMM2) to a tightlyconnected group of 40 people for up to ten months. This paper examines cameraphone use as both continuous and discontinuous with prior practices in personal photography. We describe the social uses of cameraphones we observed among our participants: creating and maintaining social relationships, constructing personal and group memory, self-presentation, and self-expression. We note that the success of new technologies depends in part on how well they integrate with the users ’ heterogeneous networks of technologies, practices, and people. Author Keywords Cameraphones; photography; social uses of photography;

Previous attempts to support spectators at large-scale events have concentrated separately on real-time event information, awareness cues, or media-sharing applications. CoMedia combines a group media space with event information and integrates reusable awareness elements throughout. In two field trials, one at a rally and the other at a music festival, we found that CoMedia facilitated onsite reporting to offsite members, coordination of group action, keeping up to date with others, spectating remotely, and joking. In these activities, media, awareness cues, and event information were often used in concert, albeit assuming differing roles. We show that the integrated approach better supports continuous interweaving of use with the changing interests and occurrences in large-scale events. Author Keywords Mobile applications, groups, awareness systems, large-scale events, spectatorship, field evaluation. Acm Classification Keywords H5.3 [Information interfaces and presentation]: Group and

Abstract This paper describes a mobile learning project, where mobile devices are used for educational activities. The main focus of this paper is teacher training. Experiences on the use of mobile technology and how it was used in teacher training, especially how trainees and supervising teachers felt about it, are presented. The pilot study was carried out at the Department of Home Economics and Craft Science in University of Helsinki. The idea of the pilot was that the supervising teacher and trainee students could discus and share their ideas about teaching methods through the mobile device and use of a short message service (SMS) and digital pictures as a part of the supervising process. The use of digital pictures which were delivered via the mobile device proved to be surprisingly successful. The goal of these innovative pilot projects is to create flexible teaching solutions, which will enable access to information using different devices, and support learning in a variety of situations.

Social context is an important yet an underresearched area in context-sensitive computing. This paper adopts a framework from social sciences that views social context as a sequence of turns taken between participants. The approach is illustrated and evaluated through three empirical cases. The results show that social context is not a static and passive surrounding of a device, but dynamic and constructed by people. Challenges and restrictions for modeling social context through turntaking are identified.

Most large public displays have been used for providing information to passers-by with the primary purpose of acting as one-way information channels to individual users. We have developed a large public display to which users can send their own media content using mobile devices. The display supports multi-touch interaction, thus enabling collaborative use of the display. This display called CityWall was set up in a city center with the goal of showing information of events happening in the city. We observed two user groups who used mobile phones with upload capability during two large-scale events happening in the city. Our findings are that this kind of combined use of personal mobile devices and a large public display as a publishing forum, used collaboratively with other users, creates a unique setting that extends the group’s feeling of participation in the events. We substantiate this claim with examples from user data.

An important problem for technology design is predicting users and uses for emerging technologies—doing usercentered design for users and uses that don't yet exist. The primary contribution of this paper is in presenting a method for anticipating future uses of new technology by looking at users ’ higher-order motives or activities for current and emerging technology. We identify three high-order motives or “social uses ” for personal photos: constructing personal and group memory; creating and maintaining social relationships; and self-expression and self-presentation. We then articulate design implications for digital imaging technology with an emphasis on networked programmable mobile imaging devices, especially cameraphones. Author Keywords Activity theory; social construction of technology; personal photography; digital imaging; digital photography, mobile imaging; camera phones; photo albums; photoblog; bodystorming; projective design. ACM Classification Keywords

In this paper, we conduct a thorough investigation of how people search their photo collections for events (a set of photographs relating to a particular well defined event), singles (individual photographs) and properties (a set of photographs with a common theme) on PDAs. We describe a prototype system that allows us to expose many issues that must be considered when designing photo searching interfaces. We discuss each of these issues and make recommendations where applicable. Our major observation is that several different methods are used to locate photographs. In light of this, we conclude by discussing how photo searching interfaces might embody or support such an approach.