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Background

The Study of Detection Scheme for Sound Information Embedded in Moving Picture 動画像埋め込み音声情報検出方式 に関する研究. Background. TV on Train. No sound is available in Train. Transmitting sound info without making sound is needed. Introduction. Define + ST Video ：

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Background

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  1. The Study of Detection Scheme for Sound Information Embedded in Moving Picture 動画像埋め込み音声情報検出方式に関する研究

  2. Background TV on Train No sound is available in Train. Transmitting sound info without making sound is needed.

  3. Introduction Define +ST Video： - Video RecordedbyCamera From Another Video on Screen -Methods: Using DV Camera to Record the first Video + DDAS： - A software made especially to encode a embedded sound to ST Video

  4. Embedding Scheme

  5. Methodology

  6. Embedding Scheme 1 Y is brighteen ingredient, Cb & Crmean the difference of ingredient color Q is quantization function d is the distance between the two corresponding coefficients in sub-bands R is a random number (different for each watermark bit), v is the quantization interval.

  7. Embedding Scheme 2 d = [(d - R)/V]V+ R,R = d - △d (quantization noise), and w be the watermark bit, d is updated by Svuis mean after DCT.

  8. Detection Scheme 1 Detection Process Formula: The RMSE（root mean square error ) between the extracted vector p and the given watermark w is defined as: W: amount of the distance updateq: Quality

  9. Detection Scheme 2 Sxyis mean before DCT Y is brighteen ingredient, Cb & Crmean the difference of ingredient color

  10. DDAS System Detection Ability - Input：　Uncompress AVI File - Output： AVI , MPEG Wav and MIDI Audio

  11. MOS Change

  12. Result Analysis

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