Abstract:
회귀 베지어 패치 분할에 기반하는 기하 보정 장치 및 방법이 개시된다. 본 발명의 일실시예에 따른 기하 보정 방법은 프로젝터가 투사 표면에 투사하는 검은 화면을 촬영한 제1 영상을 카메라로부터 수신하는 단계; 상기 프로젝터가 상기 투사 표면에 투사하는 미리 설정된 패턴을 촬영한 제2 영상을 상기 카메라로부터 수신하는 단계; 상기 제2 영상으로부터 상기 제1 영상을 빼서 제3 영상을 생성하는 단계; 및 상기 미리 설정된 패턴과 상기 제3 영상 사이의 왜곡을 보정하기 위하여, 상기 미리 설정된 패턴에 대하여 기하 보정을 수행하는 단계를 포함할 수 있다.
Abstract:
According to an embodiment of the present invention, a multiple images photographing system includes: a mirror which is arranged on a two-dimensional plate and includes a curved outer surface; a plurality of image photographing devices which encloses the mirror on the two-dimensional plate, controls a view angle as the position is changed on the two-dimensional plate, and generates an image by photographing a predetermined object using the controlled view angle; and an image connection unit generating a panorama image by connecting the images generated by the image photographing devices.
Abstract:
A surveillance and reconnaissance method using a high-quality omnidirectional video is provided. The surveillance and reconnaissance method using a panoramic video comprises the following steps of: obtaining, by a panoramic video producing device, multiple images using multi-cameras; producing, by the panoramic video producing device, a panoramic video by stitching images which are adjacent to each other in a space-time domain among the multiple images; transmitting, by the panoramic video producing device, the panoramic video to a panoramic video playing device in real time; playing, by the panoramic video playing device, the panoramic video received from the panoramic video producing device; recognizing, by the panoramic video playing device, at least one target in the received panoramic video; and selecting, by the panoramic video playing device, a region of interest centered on the target, and tracking the target based on the selected region of interest. [Reference numerals] (110) Obtain multiple images using multi-cameras; (120) Produce a panoramic video by stitching images which are adjacent to each other in a space-time domain; (130) Transmit the produced panoramic video to a panoramic video playing device in real time; (140) Play the received panoramic video by the panoramic video playing device; (150) Recognize at least one target in the panoramic video; (160) Select a region of interest centered on the recognized target and track the target based on the region of interest; (AA) Start; (BB) End
Abstract:
신드롬 부분 채널디코딩을 이용한 멀티홉 기반의 시스템 및 이의 동작 방법이 개시된다. 멀티홉 기반의 서버는 노드로부터 채널에러율을 수신하는 에러율 수신부와, 채널에러율을 이용하여, 굿풋(goodput)을 최대화하기 위한 패킷 크기를 결정하고, 결정된 패킷 크기를 갖는 패킷을 생성하는 패킷 생성부와, 채널에러율을 이용하여 생성된 패킷을 코딩하고, 코딩된 패킷을 노드로 전송하는 코딩부를 포함한다. 멀티홉, 채널에러율, 굿풋(goodput), 신드롬
Abstract:
적응적 비디오 전송을 위한 코딩 레이트 조정 및 차등 오류 보호 적용 방법과, 그를 이용한 비디오 전송/수신 장치를 제안한다. 본 발명의 실시 예에 따른 비디오 전송 장치는, 비디오 수신 장치로부터 피드백된 채널용량 추정값을 다음 채널구간의 채널용량으로 예측하고, 상기 예측된 채널용량 내에서 비디오코딩 레이트 및 채널코딩 레이트를 조정하는 코딩레이트 조정부와, 비디오 프레임들을 상기 조정된 비디오 코딩 레이트로 비디오 인코딩해서 비디오 패킷으로 생성하는 비디오 인코더 및 상기 비디오 패킷의 길이와 상기 비디오 패킷에 포함된 상기 비디오 프레임의 종류를 고려해서 차등 오류 보호하고, 상기 차등 오류 보호된 비디오 패킷을 상기 조정된 채널 코딩 레이트로 채널 인코딩해서 비트 스트림을 생성하는 순방향 에러 정정(FEC) 인코더를 포함할 수 있다. 적응적 비디오 전송, 코딩 레이트, 차등 오류 보호, UEP
Abstract:
PURPOSE: A geometrical correction device based on recursive Bezier patch sub-division and a method thereof are provided to display projected content on an uneven surface without distortion. CONSTITUTION: A geometrical correction device receives a first image that a projector photographs a black screen from a camera(501). The geometrical correction device receives a second image, which photographs a predetermined pattern, from the camera(502). The geometrical correction device generates a third image by deducting the first image from the second image(503). The geometrical correction device performs geometrical correction for the predetermined pattern in order to correct distortion between the predetermined pattern and the third image(504). [Reference numerals] (501) Receive a first image photographing a black screen from a camera; (502) Receive a second image photographing a predetermined pattern from the camera; (503) Generate a third image by deducting the first image from the second image; (504) Perform geometrical correction for the predetermined pattern; (AA) Start; (BB) End
Abstract:
PURPOSE: A three-dimensional image information transmission system and a method thereof are provided to transmit three-dimensional image information of small data quantity by transmitting three-dimensional image information by using difference information between a left eye texture image and a right eye texture image. CONSTITUTION: A difference information extracting unit(240) extracts difference information in comparison with a second synthesis texture image and a second original texture image. The second synthesis texture image is synthesized based on a first texture image and depth information. An image information transmitting unit(250) transmits three-dimensional image information including the first texture image, the depth information, and the difference information. The difference information is included in the second original texture image. The difference information is not included in the first texture image. [Reference numerals] (110) 3D image information transfer device; (210) Texture image filming unit; (220) Depth information generating unit; (230) Texture image synthesizing unit; (240) Difference information extracting unit; (250) Image information transmitting unit
Abstract:
PURPOSE: A channel rate predicting method which uses signal strength information is provided to reduce the loss of video quality by using an LDPC(Low Density Parity Check) code. CONSTITUTION: A server predicts video channel rate by using estimated channel capacity. The server extracts a scalable video by using the predicted video channel rate. The sever performs channel coding of the extracted scalable video. The server transmits the channel-coded video to a terminal. The server minimizes video quality distortion by applying differential rate according to the property of a video frame through an LDPC code.