LDA와 Word2Vec을 이용한 실감영상기술 특허 분석

Purpose This paper aims to present technological implications in realistic image technologies, widely considered as one of the future growth engines. Technological development trends of three leading countries, including South Korea, the United States, and China, were presented. Methods A patent analysis methodology using an LDA expansion model incorporating Word2Vec has been utilized. Based on realistic imaging technology patents from 2000 to 2021, the characteristics of technology trends in Korea, the United States, and China were compared and analyzed. Results Overall, core technologies of realistic imaging include synthesis, service infra, and rendering. In addition, distinct technological development patterns by country were identified. While display technology played a crucial role in Korea, service infrastructure and game technology were essential in the United States. National policy and application were identified as key factors in China. Conclusion This study showed the characteristics of technology development in realistic imaging of leading countries. The analysis results can be used as a guideline for R&D planning of realistic image technology.