| Getting Started with LEADTOOLS > Medical Imaging Features > Medical Multimedia Module > Medical Multimedia Filter Pack |
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 that are used for creating DICOM objects with compressed video and audio data.
Key Features:
Ability to create DICOM files with both video and audio using MPEG-2 compression. The user can adjust the different attributes of the MPEG-2 stream including bit rate and quality factor.
Ability to create DICOM files with video data (cine images) using lossy and lossless JPEG and JPEG2000 compression with the option to adjust quality factor.
Add video data to either an existing DICOM file or create a new one from a set of predefined DICOM classes or IODs.
Accepts 8-bit RGB, 24-bit RGB, 16-bit UYVY or 16-bit YUY2 data.
Includes a number of video processing filters including:
Auto Contrast
Auto Intensity
Auto Level
Video Text Overlay
Video Crop
Can be used with an existing application that uses DirectShow, or programmatically from the LEADTOOLS Medical Imaging toolkit.
Examples of DICOM objects that can be created using the Writer component:
Secondary Capture Multi-Frame True Color Image Storage.
Video Endoscopic Image Storage.
Video Photographic Image Storage.
Video Microscopic Image Storage.
Ultrasound Multi-frame Image Storage.
X-Ray Radiofluoroscopic Image.
X-Ray Angiographic Image Storage.
Secondary Capture Multi-frame Grayscale Byte Image Storage.
Secondary Capture Multi-frame Grayscale Word Image Storage.
MPEG2 encoding in DICOM:
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.
DirectShow filters included as part of the Writer component:
LEAD DICOM Writer Filter.
LEAD MPEG-2 Standard Video Encoder.
LEAD MPEG-2 Multiplexer.
LEAD MCMP-MJPEG Video Codec.
LEAD Auto Contrast Filter.
LEAD Auto Intensity Filter.
LEAD Auto Level Filter.
LEAD RGB Converter.
LEAD Video Text Overlay Filter.
LEAD Video Crop Filter.
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 utilize these filters to play video (cine) data in a DICOM file.
Key Features:
Can be used with any existing application that supports DirectShow, or programmatically from the LEADTOOLS Medical Imaging toolkit.
Ability to play or Cine any DICOM file with any type of compression including MPEG-2, lossy and lossless JPEG and JPEG2000.
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 dataset in memory before saving to disk.
DICOM Cine Playback - DICOM Cine Loop:
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:
Play: start or resume DICOM cine play.
Pause: pause DICOM cine play.
Stop: stop play mode and go to the beginning of the video clip.
Previous Frame: display the previous frame in the cine loop.
Next Frame: display the next frame in the cine loop.
DirectShow filters included as part of the Reader component:
LEAD DICOM Read Filter.
LEAD MPEG-2 Video Decoder.
LEAD MPEG Audio Converter.
Support Includes