Compression

Compression , updated 4/8/15, 6:52 PM

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Accusoft provides a full spectrum of document, content and imaging solutions as fully supported, enterprise-grade, best-in-class client-server applications, mobile apps, cloud services and software development kits (SDKs). The company’s HTML5 viewing technology is available to the enterprise as PrizmDoc, in cloud-based SaaS versions, and in a version optimized for SharePoint integration.

Visit http://www.accusoft.com and download your free trial to see how our software can work for you.

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COMPRESSION
Image compression and decompression is faster
and more effective using a standards-compliant
Accusoft software development kit (SDK).
When you’re building software to handle medical
images and DICOM files, start here. We support
multiple image formats on various operating systems.
faster more effective compression and
decompression for medical images and DICOM files
accusoft delivers optimizes standards-based
image compression technologies
Considered the best supported and most advanced in the industry,
PICTools Medical image compression libraries are relied upon
within leading PACS, teleradiology, ultrasound, and cardiology
applications. This software development kit (SDK) enhances still
image and video medical imaging applications.
The PICTools Medical SDK contains high performance C libraries
providing the fastest compression and decompression engines
available. It offers both lossy and lossless DICOM compliant
formats, including 8-bit and 16-bit grayscale, and provides
control over image manipulation, compression, decompression,
and conversion.
Windows | LINUX | Solaris | x86 | IBM | AIX | 32-bit/64-bit
PICTools Medical
advanced medical imaging technology
PICVideo
The fastest video codec
M-JPEG Codec
• The only M-JPEG codec optimized for both 32-bit and

64-bit Windows
• Used in video editing applications because it describes

each individual frame completely

• Includes Microsoft Video for Windows interface
• Includes Microsoft DirectShow Transform Filter interface
Windows | Codec
+1 813.875.7575 info@accusoft.com
download free trials at accusoft.com
JPEG 2000
Accusoft offers commercially supported JPEG 2000 libraries to
augment medical imaging application development. Currently
used by medical imaging clients worldwide, it has proven to be
ideal for large images in lossy or lossless mode.

File Format and Codestream - Part 1


• Continuous tone compression (1-bit to 24-bit)


• Provides lossy and lossless compression

3D Volumetric Encoding - Part 2


• Compress and decompress in accordance with the

DICOM standard


• Supports lossy and lossless modes, JPEG 2000 raw


codestream, and JPX format


• Supports 24-bit RGB, 8 to 16-bit grayscale
*For ease of comparison, the lossy J2K images were compressed to Lossy JPEG compression ratio.
All times measured using 32-bit Intel.
Parameters
Lossy JPEG
Lossy J2K*
Lossy JPEG
XR
JPEG
Lossless
J2K
Lossless
JPEG-LS
Lossless
Lossless
JPEG XR
512 x 512 8-bit gray 256 KB
Compress Time (ms)
1
11
7
3
18
15
11
Size (KB)
20
20
20
119
97
91
104
Compression Ratio
13.1:1
13.2:1
13.2:1
2.2:1
2.7:1
2.9:1
2.5:1
Decompress Time (ms)
1
5
5
1
14
14
8
PSNR
44.4
45.8
45.3
N/A
N/A
N/A
N/A
2048 x 2048 8-bit gray 4,974 KB
Compress Time (ms)
27
138
101
46
253
238
176
Size (KB)
263
263
260
1,809
1,425
1,365
1,550
Compression Ratio
16:1
15.9:1
16.2:1
2.3:1
2.9:1
3.1:1
2..7:1
Decompress Time (ms)
11
52
66
30
196
226
120
PSNR
45.3
46.2
46.2
N/A
N/A
N/A
N/A
512 x 512 12-bit gray 512 KB
Compress Time (ms)
13
30
N/A
5
34
20
N/A
Size (KB)
160
106
N/A
244
214
214
N/A
Compression Ratio
4.9:1
4.9:1
N/A
2.1:1
2.5:1
2.5:1
N/A
Decompress Time (ms)
2
16
N/A
3
27
18
N/A
PSNR
57.7
63.3
N/A
N/A
N/A
N/A
N/A
2048 x 2048 12-bit gray 9,948 KB
Compress Time (ms)
35
469
N/A
70
535
304
N/A
Size (KB)
1,0707
1,707
N/A
3,778
3,424
3,354
N/A
Compression Ratio
4.9:1
4.9:1
N/A
2.1:1
2.4:1
2.5:1
N/A
Decompress Time (ms)
35
241
N/A
34
405
279
N/A
PSNR
57.4
62.4
N/A
N/A
N/A
N/A
N/A
2048 x 2048 16-bit gray 9,948 KB
Compress Time (ms)
N/A
577
198
92
821
365
206
Size (KB)
N/A
2,274
2,274
5,788
5,535
5,385
5,517
Compression Ratio
N/A
3.7:1
3.7:1
1.4:1
1.5:1
1.6:1
1.5:1
Decompress Time (ms)
N/A
294
139
62
591
310
143
PSNR
N/A
68.9
68.7
N/A
N/A
N/A
N/A
picools medical compression file size and speed comparison chart

Multithreading


• User-configurable number of threads to optimize performance on


multicore CPUs

JPIP - Part 9


• Design and build a JPEG 2000 JPIP implementation


• Speed up network viewing of user selectable resolutions and areas


of interest


• Provides JPIP APIs for client and server, JPEG 2000 compliant


compression and decompression, and JPIP request and receive

Transcoder


• Allows many operations without decompressing and recompressing


images, eliminating generational loss


• Change the number of layers, file size, compression rate, overall quality,


convert lossless to lossy, re-encode for JPIP transmission, and extract


encoded thumbnails
LOSSLESS JPEG

• Addresses the medical industry need for compression that

is non-destructive

• Provides fast compression for video performance and is ideal

for cardiology and ultrasound applications

• Supports 24-bit RGB, 8 to 16-bit grayscale data
LOSSY JPEG

• Complete control over luminance, chrominance, and sub-sampling

compression parameters

• High-speed 1/4, 1/16, 1/64 thumbnail decompression support

• Enhanced decompression minimizes JPEG block artifacts

• CMYK, YUV, RGB, 8-bit and 12-bit grayscale support
JPEG-LS

• Provides excellent lossless or constrained-loss compression performance

• Decompression support for non-standard, improperly compressed

JLS images

• Supports single component 2 to 16-bit grayscale images

• Supports multiple component 24-bit (RGB) images
JPEG XR

• Provides support for fully standards based JPEG XR

• Features lossy and lossless compression, multiple colorspaces, a wide

dynamic range, and extensive metadata support

• A still image compression algorithm for continuous tone

photographic images