Seoul National University

Fdn. for Res.&bus., Seoul Nat. Univ. of Sci.&tech.

Ye Hoon Lee

Dong Ho Kim

Seung Ho Choi

Dong Young Lee

Deokgyu Yun

Hee Jeong Jeong

Yang Bae Park

Seok Ju Byun

Ye Bin Kim

Bong-Seok Seo

Eunyoung Jeong

Ji Hyeon Yoo

The present technology provides a system and a method for terminal positioning. According to a specific embodiment of the present invention, the position of a terminal is estimated using inner and outer centers obtained through points on each distance circumference generated on the basis of the RSSI of each indoor positioning sensor, a terminal correction position is derived: using an estimated terminal position derived using each distance value generated on the basis of the RSSI of each indoor positioning sensor, and the intersection points between straight lines connecting a circle with the smallest radius determined with the RSSI, the remaining two circles that excludes the circle with the smallest radius, and the estimated terminal position; and on the basis of the circular arc of the smallest circle, including the intersection points, and the ratio of the radii of the remaining two circles that excludes the smallest circle determined with the RSSI, and the estimated terminal position is corrected using the derived terminal correction position so that the accuracy of terminal position can be fundamentally improved.

System and method for terminal positioning

There is disclosed a system and method of predicting a location of a user's viewport using location information of a sound source in 360 virtual reality (VR) content. According to the present invention, the spatial representation description (SRD) and the sound source localization information (SLI) of the audio MPD are transmitted with the video MPD being extended, the SRD of the sound source is used to derive the location of the sound source, and the weights of the respective items of the region of interest (ROI), the sound source localization information (SLI), the current viewport, and the pole are allocated differentially according to the bandwidth condition and then multiplied by the reference bitrate to determine the segment bitrate to be provided next, thereby improving the accuracy of predicting the location of the user's viewport and ensuring the quality of experience (QoE) for regeneration speed and regeneration quality.

System and method for predicting user viewpoint using location information of sound source in 360 VR contents

Growing community of inventors

Seoul, South Korea

Ye Hoon Lee