摘要:
All macro blocks (MB) decided as an “all_0”, “all_255” or “intra predicted” mode are transmitted as an “intra not coded” mode. A receiving terminal also separates “all_0”, “all_255” and “intra predicted” from the “intra not coded” mode, referring to pixels of a lower layer. “Inter coded && MVD=0” and “Inter coded && MVD!=0” modes are represented as “Inter coded”, and “Inter not coded && MVD=0” and “Inter not coded && MVD!=0” modes are represented as “Inter not coded”. As its result, coding modes on an I-picture can be reduced to two modes and coding modes on a P-picture, or a B-picture, can be lessened to four modes.
摘要:
All macro blocks (MB) decided as an “all_0”, “all_255” or “intra predicted” mode are transmitted as an “intra not coded” mode. A receiving terminal also separates “all_0”, “all_255” and “intra predicted” from the “intra not coded” mode, referring to pixels of a lower layer. “Inter coded && MVD=0” and “Inter coded && MVD!=0” modes are represented as “Inter coded”, and “Inter not coded && MVD=0” and “Inter not coded && MVD!=0” modes are represented as “Inter not coded”. As its result, coding modes on an I-picture can be reduced to two modes and coding modes on a P-picture, or a B-picture, can be lessened to four modes.
摘要:
A context probable table of context template is employed in order to interpolate binary picture information. The context template for respective pixels making up the binary picture information is made, and probabilities for the interior of an object and the exterior of the object on its context indexes are obtained from the context probable table arranged previously. The probabilities for the interior and exterior of the object are compared with each other and the binary picture information is interpolated with a value having more probability.
摘要:
A context probable table of context template is employed in order to interpolate binary picture information. The context template for respective pixels making up the binary picture information is made, and probabilities for the interior of an object and the exterior of the object on its context indexes are obtained from the context probable table arranged previously. The probabilities for the interior and exterior of the object are compared with each other and the binary picture information is interpolated with a value having more probability.
摘要:
A motion descriptor generating apparatus using accumulated motion histogram and a method therefor. Accumulated motion histograms are generated and motion descriptors are generated by using the accumulated motion histograms. The motion descriptor generating apparatus uses an accumulated motion histogram and includes a motion histogram generating unit for respectively generating a motion histogram with relation to intensity data and direction data of an input motion. An accumulated motion histogram generating unit generates a two-dimensional accumulated motion histogram in a predetermined sequence by using the motion histogram which is generated in the motion histogram generating unit. A motion descriptor generating unit structures (hierarchy structure) video into certain units according to a change amount of the accumulated motion histogram based on a lapse of time, which is generated in the accumulated motion intensity histogram generating unit. A motion descriptor is generated which describes motion characteristics with relation to the respective structured units.
摘要:
A method describes activity in a video sequence. The method measures intensity, direction, spatial, and temporal attributes in the video sequence, and the measured attributes are combined in a digital descriptor of the activity of the video sequence.
摘要:
A storage medium storing multimedia data, and method and apparatus for reproducing multimedia data are provided. The storage medium includes at least one media stream; and additional information, wherein the media stream is divided into streaming data streamed over a network and download data downloaded over the network, and the additional information indicates how to combine the streaming data and the download data.
摘要:
Provided are a method for redundant slice coding by polyphase down-sampling (PD) and a codec using the method. An encoder for redundant slice coding by PD includes a PD coding unit rearranging a residual block that is a difference between a current block and a prediction block into four sections by performing PD on the residual block, a quantization transform unit transforming and quantizing at least one of the sections of the residual block, and a reference block generation unit generating a reference block based on a value obtained by performing inverse transform and inverse quantization, and then inverse PD on the at least one transformed and quantized section by the quantization transform unit.
摘要:
An apparatus and method for abstracting motion picture shape descriptor including statistical characteristics of still picture shape descriptor, and video indexing system and method using the same. The video indexing system includes: Segmenting means for segmenting video; Abstracting means for abstracting motion picture shape descriptor information from the segmented video information; and Storing means for storing the motion picture shape descriptor information as metadata.
摘要:
An apparatus and method for abstracting motion picture shape descriptor including statistical characteristics of still picture shape descriptor, and video indexing system and method using the same. The video indexing system includes: Segmenting means for segmenting video; Abstracting means for abstracting motion picture shape descriptor information from the segmented video information; and Storing means for storing the motion picture shape descriptor information as metadata.