Medical Multimedia Filter Pack

The Medical Multimedia Filter Pack is a suite of DirectShow filters for compressing and decompressing video and audio data inside DICOM files. This product was designed to take out 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. The Medical Multimedia Filter Pack utilizes powerful compression algorithms like MPEG2 and JPEG2000, which are part of the DICOM Standard.

The Medical Multimedia Filter Pack includes two main components: the Writer and the Reader.

The Writer (encode video sequences in DICOM)

The writer component includes the DirectShow filters that are used for creating DICOM objects with compressed video and audio data.

Key Features:

• Can create DICOM files with both video and audio using MPEG2 compression. The user can adjust the different attributes of the MPEG2 stream including bit rate and quality factor.

• Can create DICOM files with video data (cine images) using lossy or lossless JPEG and JPEG 2000 compression with the option to adjust quality factor.

• Can 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 either with an existing application that uses DirectShow, or used programmatically from within 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 MPEG2 lossy compression with middle range quality, which typically delivers between 30 Mbytes and 60 Mbytes per minute of video.

The DICOM MPEG2 objects created using the writer fully adhere to the rules of MPEG2 encoding in DICOM which are described by the new transfer syntax “MPEG2 Main Profile @ Main Level” (1.2.840.10008.1.2.4.100).

Some of the typical modalities that can take advantage of MPEG2 encoding in DICOM include Endoscopy, Cardiology and Micro-surgery.

DirectShow filters included as part of the Writer component:

• LEAD DICOM Write 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 (play DICOM videos in any media player)

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 either with an existing application that supports DirectShow, or programmatically from the LEADTOOLS Medical Imaging toolkit.

• Can play or Cine any DICOM file with any type of compression including MPEG2, lossy or lossless JPEG and JPEG 2000.

• Achieves fast and optimized video decompression.

• Provides playback options including 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.

• Supports DICOM Cine Playback - DICOM Cine Loop.

DirectShow filters included as part of the Reader component:

• LEAD DICOM Read Filter.

• LEAD MPEG-2 Video Decoder.

• LEAD MPEG Audio Converter.