본 연구에서는 불완전한 파면 변조로 발생하는 삼중 파면 간섭을 억제하기 위해 4분의 1파장판(QWP) 기반 기하위상(GP) 렌즈를 사용한 비간섭성 자가간섭 디지털 홀로그래피(SIDH) 시스템을 제안한다. 기존 반파장판(HWP) 기반 GP-SIDH와 비교할 때, 제안된 QWP 기반 시스템은 제3의 파면을 효과적으로 제거하고 광대역 조명 조건에서도 두 파면 간 간섭만을 유지하며 재구성 영상에서 삼중 파면 간섭으로 인한 노이즈가 감소함을 확인하였다. 본 접근법은 후처리 의존도를 줄이면서 고충실도 복소 홀로그램 획득을 가능하게 하며, 차세대 XR/AR 플랫폼을 위한 홀로그래픽 콘텐츠 캡처 기술로서의 적용 가능성을 제시한다.
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