Abstract:
A hardware apparatus and a method for creating an integral image are disclosed. The hardware apparatus calculating a feature point and descriptor of an image, includes: an image fading unit which reduces the maximum bit number into a predefined bit number by fading an entire inputted black and white image; an integral image creating unit which sequentially calculates pixel values of the black and white image outputted from the image fading unit to buffer, as an offset, a pixel value accumulated up to a previous line, and stores, as a differential value, a pixel value accumulated from a first pixel of a following line; and a first integral value acquisition unit which calculates a pixel value of a first integral image required to extract the feature point using the offset and the differential value.
Abstract:
Provided are a butterfly operation method for reducing computational complexity by operation skip and an HEVC system adopting the same. A butterfly operation method according to an embodiment of the present invention analyzes an input TPU and skips a butterfly operation for the TPU. As a result, computational complexity can be reduced by skipping transform/inverse transform operation itself through the analysis of values input into a butterfly structure in a transform/inverse transform process with a large amount of computational complexity in a HEVC system.
Abstract:
Provided are a 3D warping method for suppressing the generation of holes and an image processing apparatus using same. The image processing method according to the embodiment of the present invention comprises dividing an image into multiple regions and performing 3D warping of the image by units of regions. Thus, holes cannot be generated in 3D warping, or the generation of holes can be suppressed to the maximum even when the holes occur such that a 3D-warped RGB image has correct pixel values and a 3D-warped Z-image has correct depth information. [Reference numerals] (110) RGB camera;(120) Z-camera;(131) Unit for correcting and arranging the RGB-image;(132) Edge detecting unit;(133) Joint extracting unit;(134) RGB-image dividing unit;(135) RGB-image 3D-warping unit;(136) Z-image correcting/arranging unit;(137) Z-image 3D-warping unit;(138) Z-image inpainting unit;(139) Z-image up-sampling unit;(140) Image application unit
Abstract:
PURPOSE: A similarity measurement method and a recording medium thereof are provided to improve accuracy of correspondence by searching a correspondence point of the correspondence image through detection and matching of a feature amount. CONSTITUTION: A computer readable code searches multiple correspondence points among correspondence images(S110). The code forms multiple correspondence blocks including the correspondence points among the correspondence images. The code produces first similarity by comparing color distribution of the correspondence blocks(S120). The code forms an image overlapped area among the entire area of the correspondence image. The code produces second similarity by comparing color distribution of the image overlapped areas(S130). The code measures similarity of the correspondence image by granting a weighting factor to the first and the second similarity(S140). [Reference numerals] (AA) Start; (BB) End; (S110) Searching a correspondence point between correspondence images; (S120) Generating a correspondence block and calculating a first similarity; (S130) Generating an overlapped area and calculating a second similarity; (S140) Measuring similarity of the correspondence image by granting a weighting factor to the first and the second similarities
Abstract:
PURPOSE: A method and an apparatus for automatic loudness control are provided to convert audio sounds into multiple critical band audio sounds and to apply them to LD and to assign bands included in the sound band in regular sequence. CONSTITUTION: A multi threshold band converter(110) converts input multichannel audio sounds into multiband audio sounds. The multi threshold band converter converts multiband audio sounds into multi threshold band audio sounds. A threshold band LD output unit(120) produces LDs for multi threshold band audio sounds. A threshold band LD difference allocator additionally assigns channel LD difference calculated by a channel LD-difference producer to threshold bands of the sound band.
Abstract:
PURPOSE: A correction system for a stereo camera and a stereo image correction device thereof are provided to improve a distortion correction result of a stereo image by interlinking physical correction for a stereo camera with image processing correction for the stereo image. CONSTITUTION: A rig control module(300) controls an electric rig according to an inputted camera correction parameter. The rig control module performs the physical correction of a camera. A stereo image correction device(500) obtains the camera correction parameter through correction for a stereo image. The stereo image correction device outputs the obtained camera correction parameter through a camera control module(400). The camera control module displays the camera correction parameter inputted form the stereo image correction device on a screen or through the rig control module. [Reference numerals] (110) Left lens; (120) Right lens; (140) Right image sensor; (150) Left image signal processor; (160) Right image signal processor; (200) Electric rig; (300) Rig control module; (400) Camera control module; (500) Stereo image correction device; (510) Stereo color correction module; (520) Geometric correction module(correction tool); (530) 3D depth information module; (600) Multiplexer; (AA) Corrected value
Abstract:
PURPOSE: An audio system having a multi-channel and a multi-track and an audio processing method thereof are provided to prevent sound deterioration of audio objects taking a major role by reducing only data size of the audio objects taking a minor role. CONSTITUTION: An audio system(100) having a multi-channel and a multi-track comprises a multichannel audio mixer(110), channel down-mixers(120-1-120-P), audio encoders(130-1-130-P), and an audio MUX(140). The multichannel audio mixer performs an MIX operation by dividing channels from a multichannel audio object-K to a multichannel audio object-N. The channel down-mixers channel-down mix inputted multichannel audio objects. The audio encoders encode the audio objects channel-down mixed from the channel down mixers, respectively. The audio MUX generates single multi-channel multi-track audio.
Abstract:
오디오 생성장치가 개시된다. 본 발명에 따른 오디오 생성장치는 오디오 객체를 입력받아 압축하는 오디오 인코더와, 오디오 객체에 일괄적으로 적용될 제1 오디오 효과를 포함하는 주요 장면묘사정보 및 오디오 객체들에 개별적으로 적용될 제2 오디오 효과를 포함하는 세부 장면묘사정보를 포함하는 스트리밍 장면묘사정보를 부호화하는 묘사인코더 및 스트리밍 장면묘사정보와 오디오 객체들을 결합하여 오디오 프레임 단위의 시간에 따라 전송되는 오디오 비트스트림을 생성하는 패킷화부를 포함한다. 본 발명에 따르면, 객체별 효과뿐만 아니라 전체 신호에 효과를 주기 위해서 장면효과 정보를 포함하고 있으며 각 효과를 적용하는 시간을 설정할 수 있다. 또한, 기존의 장면 묘사 방법과 달리 서비스 스트림의 중간에 사용자가 서비스를 받더라도 모든 장면 묘사 정보를 분석할 수 있도록 주요 정보를 반복적으로 전송함으로써 방송 서비스에 적용가능하다는 장점이 있다.
Abstract:
본 발명은 실감 객체 오디오 재생 및 생성 장치에 관한 것으로, 본 발명의 일면에 따른 실감 객체 오디오 재생 장치는 입력되는 오디오 파일로부터 SD(Scene Description) 압축 데이터 및 객체 오디오 압축 데이터를 각각 분리하는 디포맷터부, SD 압축 데이터를 복호화하여 SD 정보(Scene Description Information)를 복원하는 SD 복호화부, 객체 오디오 압축 데이터를 복호화하여 복수 객체 각각의 오디오 신호인 객체 오디오 신호를 복원하는 객체 오디오 복호화부 및 SD 정보 중 각 객체 오디오 신호에 대응하는 객체별 SD 정보에 따라 객체별 오디오 효과를 객체 오디오 신호에 부가하여 각 객체 오디오 신호에 대응하는 실감 객체 오디오 신호를 생성하는 객체 오디오 효과부를 포함한다.
Abstract:
PURPOSE: A method for encoding image using estimation of color space is provided to improve an image compression efficient. CONSTITUTION: A method for encoding image using estimation of color space comprises steps of: encoding a pixel in a first color space(S110); calculating a color space difference prediction value of a second color space based on the encoded first color space(S120); and encoding the differential data of a current pixel value and the calculated color space prediction value(S130).