Patent ID: 6804302
Filing Date: 2004-10-12
Classification: G11B,H04N

Abstract:
A multimedia information coding apparatus for coding a multimedia title adaptively to respective data-type of each source based on scenario information, said apparatus comprising:a scenario analyzer for analyzing a scenario; and a data-type-adaptive-coding section for coding data adaptively to own data type based on the scenario information analyzed; wherein said scenario analyzer creates data-type-adaptive-coding-helper-information including for each frame: region information describing which region the source appears; time-information describing when the source appears; and data-type-information describing the data-type of the source wherein said data-type-adaptive-coding-section includes a data-type-adaptive-encoder and a data-type-adaptive-coding-controller which controls the data-type-adaptive-encoder, using the created helper-information; wherein said data-type-adaptive-encoder comprising: (a) an input identifier for identifying a frame data adaptive to a coding format of the frame data supplied; (b) an orthogonal transformer for providing the supplied frame data with DCT process: (c) a quantizer for quantizing the frame data undergone orthogonal transform; (d) a motion estimation means for estimating a motion and outputting a motion vector data based on the frame data supplied and the quantized data quantized by said quantizer; (e) a variable length encoder for coding both the frame data quantized and the motion-vector-data, wherein said motion estimating means refers to the coding format of the frame data identified by said input identifier; wherein when data of non-time-varying-video appears in the supplied data, a macro-block within a display area of a frame other than a frame where the data has firstly appeared is coded as an escape-macro-block.