Lossless/Near Lossless Compression

Product Overview

A rapid increasing of the image resolution and the amount of data handled by a processor engine cause issues in not only high-class digital cameras but also mobile terminals .

Image data are generally compressed to reduce the amount of data, but there is a need for technology that suppresses the deterioration of image quality and processes at high speed.

TMC has developed the high-resolution lossless / near lossless compression technology which have been used for many years for sensor images of digital cameras, and has commercialized a very compact and high-speed compression IP.


Lossless

Near Lossless

Product Name

Compact Lossless

Product Numbers

  • Encoder: TM27545
  • Decoder: TM27546

Features

  • Extremely high throughput contributes to realization of the complete lossless compression and decompression.
  • Compact design to be implemented in an inexpensive FPGA to reduce costs. (Example: Cyclone IV series, Artix7 series)
  • Ultra-low delay by optimizing the coding algorithm.
  • Simple interface for easy implementation and shortening the design period.
  • Long term achievement as a RAW compression format for the digital cameras.
  • TMC’s original, unique and effective compression formats provide higher security to prevent the leakage of confidential information.

Specification

Compression Format TMC’s original compression format
Throughput 1 sample/clock (improved by parallel processing)
Image Resolution 32 x 8 samples or more
Image Format RGB, YCbCr4:4:4/4:2:2/4:2:0/4:0:0
Image Bit Depth 8 to 16 bits
Interface Specification Data, Data Enable

 

This IP supports both color spaces of YCbCr and YUV.

More Information

Click below for a product introduction video

(Link to YouTube)





 

Product Name

Near Lossless

Features

  • Enables to control the file size / bandwidth by specifying the compression rate.
  • Lossless mode is also supported to allow complete lossless compression.
  • Industry-wide interface for easy implementation and shortening the design period.
  • Long term achievement as a RAW compression format for digital cameras.
  • TMC’s original, unique and effective compression formats provide higher security to prevent the leakage of confidential information.

Specification

Compression Format  TMC’s original compression format
Throughput 1 sample/clock (improved by parallel processing)
Image Resolution 65k x 65k (max.)
Image Format Bayer (RGGB)
Image Bit Depth 12 / 14 / 16 bits
Interface AXI3

Document

Click here for a brochure

Application examples