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2026.06.30

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.

  1. Lossless
  2. 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.

Document

Lossless/Near Lossless Compression

PDF形式 / 516KB

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

Lossless/Near Lossless Compression

PDF形式 / 254KB

Application examples

Product & Technology Inquiries                     Please feel free to contact us with technical questions regarding software integration, such as "Will it work on our current CPU?" or "Is it compatible with our existing OS?", or to consult about an evaluation version.

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