Juan Haladjian

Apple Inc.

Construction kits and development environments have dramatically reduced the time and expertise required for the development of physical interactive devices. The field of smart textiles, however, still lacks of established tools that support their development. In this paper, we introduce Interactex, a visual programming environment specifically des...

Many goalkeeper trainees cannot afford a personal human coach. Hence, they could benefit from a virtual coach that provides personalized feedback about the execution of their training exercises. As a first step towards this goal, we developed an algorithm to detect and classify goalkeeper training exercises using a wearable inertial sensor attached...

Despite more than three decades of research in augmented reality and shown positive effect of AR in educational settings, we still don't witness spread of this technology in the schools. Complex technology and limited educational content are among the reasons for this absence. Authoring systems can play a positive role in introduction of AR into th...

This paper provides an overview of the development process of wearable device applications using two case studies. KneeHapp is a smart textile bandage that measures the performance of different rehabilitation exercises performed by patients after a knee injury and HipRApp is a bandage that tracks the recovery of patients after a hip surgery based o...

In modern showjumping and cross-country riding, horse-rider-pairs have to jump a series of obstacles in a given time. A jump is considered successful (penalty-free) if a horse can comfortably jump the fence without elements of the fence falling down. If any of the elements of the fence falls down or the horse refuses to jump, the rider obtains pena...

In modern showjumping and cross-country riding, the success of the horse-rider-pair is measured by the ability to finish a given course of obstacles without penalties within a given time. A horse performs a successful (penalty-free) jump, if no element of the fence falls during the jump. The success of each jump is determined by the correct take-of...

The availability of artificial intelligence and smart glasses, equipped with cameras and displays, presents a strong foundation on which to build a wearable cognitive assistant, a device that provides the user with context-aware information. Although technical challenges such as power consumption and insufficient latency have plagued early versions...

Cow lameness is a common manifestation in dairy cattle that causes severe health and life quality issues to cows, including pain and a reduction in their life expectancy. In our previous work, we introduced an algorithmic approach to automatically detect anomalies in the walking pattern of cows using a wearable motion sensor. In this article, we pr...

Cow lameness is a common welfare issue in the dairy industry that causes severe health and life quality issues to cows, including pain and a reduction in their life expectancy. The earlier a lame cow is detected, the earlier and more effectively it can be treated. A change in the gait of the cow is the earliest symptom of lameness. Currently, lame...

Many farmers and families in poor rural areas in the developing world keep pigs as a resource for income. Most of these pigs are not kept in stables but let to roam freely. While this enables poor farmers to keep livestock without vast investments and sets pigs free from stables, it also increases the transmission rate of infectious diseases among...

Hip replacement surgery is a procedure undertaken to relieve pain and restore function of a hip joint. Rehabilitation after a hip replacement surgery can last several months. Currently, orthopedists lack information about patients' rehabilitation progress and rely solely on subjective observations in order to decide for a treatment. Previous resear...

Many people who are blind or partially blind continue to enjoy alpine sports such as skiing and snowboarding. Because of their restricted visual perception, visually impaired (VI) skiers are usually accompanied by a ski guide. We present VIHapp, a system consisting of smart ski poles, smart armbands and an instrumented ski to enable communication b...

A tear of the Anterior Cruciate Ligament (ACL) is a severe knee injury that requires up to a year of rehabilitation. Patients sustaining an ACL injury perform rehabilitation exercises mostly at home unsupervised. Orthopedists meet patients at time intervals as long as three months and lack quantitative ways to measure and keep track of the rehabili...

A common welfare issue in the dairy industry is cow lameness. Lame cows produce less milk and have other costs associated such as the loss of reproductive performance and the need for veterinary treatment. The earlier a lame cow is detected, the more effectively it can be treated. Currently, lame cows are detected by visual inspection performed by...

A tear of the Anterior Cruciate Ligament (ACL) is a common knee injury that requires up to a year of rehabilitation. Patients sustaining an ACL injury perform rehabilitation exercises mostly at home with limited supervision from orthopedists and receive feedback about the quality of their exercising only few times a week at the beginning of the reh...

Smart garments have emerged to a significant research field over the last decades. Despite their potential and increasing industrial interest, the field still faces major challenges, such as the lack of software tools that support their development. Research in this field is mostly being done on hardware technologies such as soft textile sensors an...

The increasing complexity of current game projects highlights the need for new tools and working methodologies to support the games’ engineering process. We make use of the mobile touch technology as a way to improve communication and encourage collaborative work between the different parts involved in the game project (developers, usability tester...

Prototypes have proven to be a good practice in different areas. In the gaming industry, they help identify usability and gameplay issues, among others. The earlier these issues are identified, the less effort is required fixing them. But game assets like graphics are often expensive and are available later on, or even after game functionality has...

Learning is a process that is associated with a lot of effort and perseverance. In learning theories, motivation can be observed as a key factor. In some cases learning can become playing if the learning experience is so intrinsically satisfying and rewarding that external pressures or rewards for learning are of secondary importance. Serious games...

n recent years mobile devices like the iPhone (and Android devices) became even more powerful than netbooks. This computational power can be used for complex simulations and games that were until now just possible on desktop computers. We propose adaptive games with 2D physics on mobile devices that can be used for learning purposes. We argue that...