JPEGLS-E Encoder

from CAST, Inc.

Features

• Sub-sampling formats of  4:4:4, 4:2:2, 4:2:0 and 4:1:1
• Programmable through standard JPEG-LS stream marker segments supporting:
  • SOI, SOF55, SOS,
  • LSE, EOI, APPn and COM
• Automatic "program-once-encode-many" operation
• Automatic header generation
• Single clock per input sample encoding
• Bits per sample ranging from 2 to 16
• Single scan encoding support only
• Grayscale or 3 component images
• ISO/IEC 14495-1 JPEG-LS Compliance
• Programmable local gradient thresholds
• Up to 64 context parameters reset threshold values
• Imaging sizing from 4 X 4 up to 64K X 64K

Description

The JPEGLS-E megafunction is a JPEG-LS encoder that forms a high performance solution for image and video lossless compression applications. Providing processing rates up to 161 MSamples/sec on FPGA, a single instantiation of JPEGLS-E suffices for the processing of high rate applications such as HDTV.

Compliance with the ISO/IEC 14495-1 JPEG standard makes the JPEG-LS encoder megafunction ideal for any cross platform application such as professional cameras, medical and satellite imaging systems. The megafunction is originally provided with FIFO-like pixel and stream input /output interfaces, but other standard interfaces (e.g. AMBA) are also available.

Being carefully designed, and rigorously verified, the JPEGLS-E is a reliable and easy-to-integrate megafuntion. Ease of integration is served by a complete verification environment, and additional aids for system on chip simulation.

Device Utilization and Performance

Table 1 lists the typical device utilization results for the megafunction.

Deliverables

• Encrypted Megafunction netlist
• Symbol file
• Include File
• Optional testbench and pre-compiled RTL model
• Assignent and Configuration
• Documentation

Contact Information

For additional information, contact CAST, Inc. at:

CAST, Inc.
11 Stonewall Court
Woodcliff Lake, NJ 07677
Tel: (201) 391-8300
Fax: (201) 391-8694
Email: info@cast-inc.com
URL: www.cast-inc.com