Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.

Abstract: An encoding apparatus comprises: a network interface for receiving an image; a memory for storing a command for encoding the image; and a processor for encoding the image according to the command, wherein the processor performs padding to set pixel values of a padding area corresponding to one edge area of the image by referring to the other edge area of the image adjacent to the one edge area on a sphere on which the image is projected, seeks a motion vector by referring to the pixel values of the padding area and encodes the image by referring to the motion vector, wherein the image is a 360-degree image.

Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.

Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.

Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.

Abstract: An encoding apparatus comprises: a network interface for receiving an image; a memory for storing a command for encoding the image; and a processor for encoding the image according to the command, wherein the processor performs padding to set pixel values of a padding area corresponding to one edge area of the image by referring to the other edge area of the image adjacent to the one edge area on a sphere on which the image is projected, seeks a motion vector by referring to the pixel values of the padding area and encodes the image by referring to the motion vector, wherein the image is a 360-degree image.

Abstract: A method of operating a video decoder system includes decoding an encoded video frame using a decoder control unit for determining whether the acceleration is required for respective decoding functional units and the degree thereof.

Abstract: Disclosed is a moving picture mailing system which comprises a video signal capturing device for capturing digital video signals from video signal information of moving pictures; an audio signal capturing device for capturing digital audio signals from audio signal information of moving pictures; and a moving picture recorder for respectively receiving the video and audio signals from the video and audio signal capturing devices, compressing the video and audio signals using MPEG-4 video and audio compression techniques, multiplexing the compressed signals and transmitting combined bit streams to a moving picture mailing server.

Abstract: An apparatus for detecting the position of a human face in an input image or video image and a method thereof are provided.

Abstract: Disclosed is a moving picture mailing system which comprises a video signal capturing device for capturing digital video signals from video signal information of moving pictures; an audio signal capturing device for capturing digital audio signals from audio signal information of moving pictures; and a moving picture recorder for respectively receiving the video and audio signals from the video and audio signal capturing devices, compressing the video and audio signals using MPEG-4 video and audio compression techniques, multiplexing the compressed signals and transmitting combined bit streams to a moving picture mailing server.

Abstract: In an apparatus for controlling the bit amount of each video object plane (VOP) of a moving picture, the quantization step size for each VOP is determined based on significance, complexity and color sensitivity of each VOP, so that human visual sensitivity is taken into consideration. Picture quality of a specific VOP is input via an input unit. Visual sensitivity class is classified based on the complexity and color sensitivity of the VOP. Histogram is calculated based on the variance of video signal of the VOP and visual sensitivity values for each VOP. Then, the quantization step size for the VOP is adjusted based on the histogram and a bit model while total bit amount of a frame is maintained.

Abstract: Quantization interval determining method and circuit are provided. The quantization interval determining circuit has a quantizer matrix calculator, a macroblock classifier, a reference quantization interval storage, a block classifier, a bit table storage, a histogram calculator, a frame bit generation predictor, a reference quantization interval adjuster, a target bit allocator, and a bit rate controller. In the quantization interval determining method and circuit, a video signal is classified based on human visual sense characteristics, a reference quantization interval suited for each class is determined, a target bit is adaptively allocated, considering distribution of the video signal, to determine a quantization interval compatible with a given transmission speed, simultaneously with the reference quantization interval determination, and then a final quantization interval is determined.

Abstract: A method and apparatus for coding an image for reducing the amount of bit generation. Those are realized by eliminating a perceptual error from a predict error, which is generated in performing a differential pulse coded modulation (DPCM) procedure with respect to a movement between moving pictures, by using a look up table (LUT) defined for human perceptual color tolerance in the YUV chromatic domain.