Abstract:
본 발명은 가상현실(Virtual Reality; VR)을 체험하기 위한 실제 공간을 촬영한 영상의 사각형 바닥면에 기반하여 획득된 법선벡터를 활용하여 상기 영상에서 지면으로부터 바닥면의 높이를 산출하는 단계; 상기 바닥면의 높이를 조절하여 체험 공간을 설정하는 단계; 상기 체험 공간에서 상기 체험 공간의 배경과 가상현실 체험자를 분리하는 단계; 및 상기 체험공간의 배경으로부터 분리된 체험자를 인식하는 단계를 포함하는, 가상현실 체험자 인식 방법을 개시한다.
Abstract:
A receiving device receives an FSK signal, converts the FSK signal into a phasor including amplitude and phase, estimates and compensates for a carrier frequency offset (CFO) from the converted phasor, and recovers a data bit from the converted phasor. [Reference numerals] (1420) Mixer; (1430) BPF and VGA; (1450) Phasor correlator; (1470) CFO compensator; (AA) Received signal; (BB) Recovered bit
Abstract:
PURPOSE: A reality-virtual fusion space based education device and a method thereof are provided to virtualize real space of a teacher and a learner for remote video education, thereby providing fusion space which the real space and the virtualized real space of an opponent are synchronized. CONSTITUTION: A character data processing unit(152) performs a rendering operation for character shape data and operation data in reality-virtual fusion space provided from an outside. A desk data processing unit(154) generates desk shape data through desk photography of a participant. The desk data processing unit performs a rendering operation for the desk shape data in the reality-virtual fusion space. A voice and sound data processing unit(150) generates voice or sound data. [Reference numerals] (110) Person image input device; (112) Person image output device; (120) Desk image input device; (122) Desk image output device; (130) Voice/sound input device; (132) Voice/sound output device; (150) Voice/sound data processing unit; (152) Person data processing unit; (154) Desk data processing unit; (158) Virtual space processing unit; (160) Data transmitting/receiving unit; (200) Communication network
Abstract:
PURPOSE: A structure of a camcorder for tracking of a photographing position in a 3D space is provided to easily compose a real image and CG(Computer Graphics). CONSTITUTION: A main lens(110) takes a photograph of a real image. A sub lens(120) takes a photograph of a sub image for a fixed object. In order that the main lens and the sub lens are synchronized, a synchronizing signal generator(130) offers a reference signal. An image output unit(160) outputs a main image or the sub image to the outside or outputs the stored main image or sub image of each storage unit(140,150) to the outside.
Abstract:
PURPOSE: A transmitting and receiving device in a wireless communication system and a method thereof are provided to prevent the 180 degree phase transition between symbols. CONSTITUTION: A serial to parallel converter(110) changes an input bit string into a plurality of symbols including each 3 bit. A differential modulation part(120) creates a differentiated symbol by applying π/4 phase rotation to the symbol. Up-samplers(131,132) up-samples the differentiated symbol. Filters(141,142) filter the up-sampled symbol. Digital analog converters(151,152) change the filtered symbol into the analog signal. A quadrature modulator(160) orthogonally modulates the transformed analog signal.