The UHT-JPEGLS-E core is a JPEG-LS encoder, compliant to ISO/IEC IS 14495-1 | ITU-T Recommendation T.87 standards. It supports encoding of 4:4:4, 4:2:2, 4:2:0 and 4:0:0 (grayscale) video streams, in 8 up to 16 bits sample depths. The core is a standalone and high-performance JPEG-LS encoder, designed for enabling ultra-high frame rate SD and HD encoding, and Ultra HD video encoding (4K/8K and beyond), even in low-end ASIC or FPGA silicon. The UHT-JPEGLS-E is available for ASIC or AMD-Xilinx, Efinix, Intel, Lattice and Microchip FPGA and SoC based designs.
JPEG-LS is based on the LOCO-I (Low Complexity-Lossless Compression for Images) image compression algorithm, which uses a non-linear predictive scheme with rudimentary edge detecting capability, based on the four nearest –causal- neighbours (left, upper left, upper and upper right) and an entropy encoder using adaptively selective Golomb-type codes. The low complexity scheme of JPEG-LS is based on the assumption that prediction residuals follow a two-sided geometric distribution and the fact that Golomb-codes are optimal for geometric distributions, thus the modeling and coding units are matching.
UHT-JPEGLS-E is very easy to use and integrate in a system. It requires minimal host intervention as it only needs to be programmed once per video sequence. Once programmed, it can encode an arbitrary number of video frames without the need of any further intervention or assistance by the host system CPU.
UHT-JPEGLS-E accepts the uncompressed raw video data in interleaved scan format. It outputs standalone, standard compliant, JPEG-LS byte stream format. No post processing on the output stream, other than (as examples) saving, muxing, or transmitting, is required by the host. The output JPEG-LS byte stream can be decoded, as is, by any corresponding ISO/IEC IS 14495-1 | ITU-T Recommendation T.87 compliant decoder.
IP Deliverables
Clear-text RTL sources for ASIC designs, or pre-synthesized and verified Netlist for FPGA and SoC devices
Release Notes, Design Specification and Integration Manual documents
Bit Accurate Model (BAM) and test vector generation binaries, including sample scripts
Pre-compiled RTL simulation model and gate-level simulation netlist for the FPGA Netlist license
Self-checking testbench environment sources, including sample BAM generated test cases
Simulation and sample Synthesis (for ASICs) or Place & Route (for FPGAs) scripts
Specifications »
Symbol
Features
ISO/IEC IS 14495-1 JPEG-LS T.87 Compliant and Standalone Operation
Full compliance to the ISO/IEC IS 14495-1 JPEG-LS specification
Programmable image dimensions from 8 x 8 up to 64k x 64k
4:4:4, 4:2:2, 4:2:0 and 4:0:0 single scan encoding
8 up to 16 bits per sample depth encoding
Programmable point transform
Programmable local gradient thresholds
ISO/IEC IS 14495-1 compliant JPEG-LS byte stream output
CPU-less, complete and standalone operation
Advanced JPEG-LS Implementation
Ultra-high throughput in low-end silicon
Low native encoding latency
On-chip memory implementation
Easy Implementation and Verification
Extensive documentation
Bit Accurate Model (BAM) with optional Test Vector generation functionality
Self-checking testbench environment
Sample BAM scripts
Synthesis scripts
Simulation scripts
Place & Route scripts for FPGAs
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