SCHWARZ Sebastian, PREDA Marius, BARONCINI Vittorio , BUDAGAVI Madhukar, CESAR Pablo, CHOU Philip A. , COHEN Robert A. , KRIVOKUCA Maja , LASSERRE Sebastien , LI Zhu , LLACH Joan , MAMMOU Khaled , MEKURIA Rufael , NAKAGAMI Ohji , SIAHAAN Ernestasia , TABATABAI Ali, TOURAPIS Alexis M., ZAKHARCHENKO Vladyslav Emerging MPEG standards for point cloud compression. IEEE journal on emerging and selected topics in circuits and systems, 2019, pp. 1-16 URL: https://ieeexplore.ieee.org/document/8571288 abstract
Due to the increased popularity of augmented and virtual reality experiences, the interest in capturing the real world in multiple dimensions and in presenting it to users in an immersible fashion has never been higher. Distributing such representations enables users to freely navigate in multi-sensory 3D media experiences. Unfortunately, such representations require a large amount of data, not feasible for transmission on today's networks. Efficient compression technologies well adopted in the content chain are in high demand and are key components to democratize augmented and virtual reality applications. The Moving Picture Experts Group, MPEG, as one of the main standardization groups dealing with multimedia, identified the trend and started recently the process of building an open standard for compactly representing 3D point clouds, which are the 3D equivalent of the very well-known 2D pixels. This paper introduces the main developments and technical aspects of this ongoing standardization effort.
TAPU Ruxandra, MOCANU Bogdan, ZAHARIA Titus Wearable assistive devices for visually impaired: a state of the art survey. Pattern recognition letters, 2019, pp. 1-16 (document in press - published online 29 Oct 2018) abstract
Recent statistics of the World Health Organization (WHO), published in October 2017, estimate that more than 253 million people worldwide suffer from visual impairment (VI) with 36 million of blinds and 217 million people with low vision. In the last decade, there was a tremendous amount of work in developing wearable assistive devices dedicated to the visually impaired people, aiming at increasing the user cognition when navigating in known/unknown, indoor/outdoor environments, and designed to improve the VI quality of life. This paper presents a survey of wearable/assistive devices and provides a critical presentation of each system, while emphasizing related strengths and limitations. The paper is designed to inform the research community and the VI people about the capabilities of existing systems, the progress in assistive technologies and provide a glimpse in the possible short/medium term axes of research that can improve existing devices. The survey is based on various features and performance parameters, established with the help of the blind community that allows systems classification using both qualitative and quantitative measu.res of evaluation. This makes it possible to rank the analyzed systems based on their potential impact on the VI people life