Audio-video transmission technology for assistance of the blind | |
| Author | Onta, Basanta Raj |
| Call Number | AIT Thesis no.CS-12-06 |
| Subject(s) | Blind, Apparatus for the Video compression |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Computer Science, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. CS-12-06 |
| Abstract | The most preferred assistive devices for a blind person today are either a white walking cane or a guide dog. Advancement in technology has also provided various other devices that utilize non-visual sensory modalities such as smell, hearing and touch. At the same time, Voice over Internet Protocol (VoIP) systems have made it easier for people to communicate via the Internet. Voice and video calls between two users are becoming cheaper day by day as the cost of Internet bandwidth decreases. We propose a service system that acts as a communication hub in which volunteers register themselves as sighted helpers. A blind person can then dial a specific endpoint to connect to a volunteer in a two-way audio and one-way video link. The view in front of the blind person is captured by a camera he or she is carrying and gets transmitted to the remote helper who is able to describe the scene in a descriptive manner as possible. The system uses the Session Initiation Protocol (SIP) for connecting and Real-time Transport Protocol (RTP) for transferring media traffic. We validate the operation of the system with real-life users under different network conditions: an open IP network, a NAT environment and a 3G network. We experiment with different available and supported audio and video codecs to confirm acceptable call quality. The service can be easily extended and integrated with other available services to provide enhanced services that are mutually benefi cial to both the service user and provider. |
| Year | 2012 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis : no. CS-12-06 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Computer Science (CS) |
| Chairperson(s) | Dailey, Matthew N.; |
| Examination Committee(s) | Apinun Tunpan ;Mongkol Ekpanyapong ; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2012 |