JPEG-E (Baseline JPEG Encoder) Core

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Data Sheets

The JPEG-E (Baseline JPEG Decoder) core implements a high-performance image or video encoder that complies with the ISO/IEC 10918-1 JPEG standard. It provides a solution for a variety of image and video compression multimedia applications, and is capable over 30 frames/second for 4:3 HDTV, or 1440 x 1152, 4:2:0 MPEG-2.

The core can process both baseline and non-standard motion JPEG streams. An optional add-on bit-rate control block is available that may benefit applications with tight bandwidth constraints.

The JPEG-E core is designed for reliability and ease of integration, and has been proven in a number of ASIC and FPGA designs. Included in the deliverables is a software bit-accurate model that facilitates on-chip verification.

JPEG-E Baseline JPEG Encoder Block Diagram

Implementation Results

The following are typical performance and utilization results.

Lattice Device	Slices	SysMEM EBRs	I/Os	Fmax (MHz)
LFXP10-5	4750	7	73	61
LXP2-17E-7	3671	7	73	96
LFEC10-5	4750	7	73	73
LFECP10-5	3551	7	73	72
LFE2-12E-7	3660	7	73	119
LFSC3GA15-7	4662	7	73	150

Features

Programmable Huffman tables (2 AC, 2 DC)
Programmable quantization tables (four)
Up to 4 color components (option to extend to 255 components)
Support all scan configurations and JPEG formats for input/output data
Support any image size up to 64K x 64K
Supports DNL and restart markers
Motion JPEG decoding/encoding
Optional rate control
Single clock per input sample for encoding
Header errors catching
Automatic headers generation
Automatic program-once encode-many operation

Applications

Digital cameras
Camcorders
Multifunction printers/scanners/copiers/faxes
Medical imaging systems
Video production suites
Video conference and display projection systems
Surveillance systems

JPEG-E (Baseline JPEG Encoder) Core

Documents & Downloads

See Also

Implementation Results

Features

Applications