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Dicom檔案的無損壓縮

在進行無損壓縮的主題之前,先說一下什麼是傳輸語義吧!畢竟是否進行壓縮最直接的觀察點就在傳輸語義;

引用一下下面一句話(https://www.medicalconnections.co.uk/kb/Transfer-Syntax/)

Transfer Syntax is the language used in DICOM to describe the DICOM file format and the network transfer methods. 3 main variables are contained in the Transfer Syntax:

  • VR: Implicit/Explicit
  • Endianism: Little-Endian/BigEndian
  • Pixel Data Compression

For DICOM Files, the Transfer Syntax is stored in the File Meta Header, and for networking it is negotiated between the SCU & SCP. For more information about how the negotiation happens and how to control the network transfer using Transfer Syntax can be found here.

Here is a summary of the most common DICOM Transfer syntaxes:

傳輸語義是什麼呢?其實