The Medical Multimedia Filter Module is a suite of state-of-the-art DirectShow filters for compressing and decompressing video and audio data inside DICOM files. This feature-rich product was designed to eliminate the complexity from converting cine images and video streams to DICOM objects including X-ray Angiography (XA), Ultrasound (US), Visible Light (VL), Secondary Capture (SC) and much more. This Filter Module utilizes the most advanced compression algorithms used in the industry and approved by the DICOM standard including MPEG-2, Motion JPEG, and JPEG2000.
The Medical Multimedia Filter Module includes two main components: the Writer and the Reader.
The writer component includes the DirectShow filters used for creating DICOM objects with compressed video and audio data.
MPEG-2 is a high quality video compression and is primarily targeted for applications that require higher bitrates or high bandwidth usage. The DICOM standard uses MPEG-2 lossy compression with middle range quality, which typically delivers between 30 Mbytes and 60 Mbytes per minute of video.
The DICOM MPEG-2 objects created using the Writer fully adhere to the rules of MPEG-2 encoding in DICOM, which are described by the new transfer syntax MPEG-2 Main Profile @ Main Level (1.2.840.10008.1.2.4.100).
Some of the typical modalities that can take advantage of MPEG-2 encoding in DICOM include Endoscopy, Cardiology, and Micro-surgery.
The reader component includes a set of DirectShow filters that register into the Windows collection of multimedia drivers and integrates with any application using DirectShow. Existing video software, such as Windows Media Player and Ulead Media Studio, can use these filters to play video (cine) data in a DICOM file.
Use the Reader with any existing application that supports DirectShow, or programmatically from the LEADTOOLS Medical Imaging toolkit.
Play or Cine any DICOM file with any type of compression including MPEG-2, lossy and lossless JPEG and JPEG2000.
Play fast and optimized video decompression.
Playback options include control of the stream speed by changing the frame playback rate. In addition to the basic stream and speed control functionality, LEADTOOLS developers can "preview" a LEAD DICOM data set in memory before saving it to disk.
A cine loop is the continuous display of a set of images or frames that convey the effect of motion and is considered a very useful diagnostic tool. With the help of the reader, the user can treat DICOM cine as a regular video file and perform the following actions:
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