ISO/IEC 15444-10:2011

Overview

ISO/IEC 15444-10:2011 (JPEG 2000 - Extensions for three-dimensional data) specifies lossless and lossy compression methods for coding volumetric (3D) images and multi-component volumetric data. Published jointly with ITU‑T Rec. T.809, this part of the JPEG 2000 family (often called JP3D) extends the core JPEG 2000 codestream, syntax and processing defined in ISO/IEC 15444-1 and ISO/IEC 15444-2 to support isotropic, three-dimensional wavelet-based coding while preserving backward-compatible elements where applicable.

Key topics and technical requirements

• 3D compression modes: Defines both lossless (bit‑preserving) and lossy coding for continuous‑tone, bi‑level, grey‑scale, colour and multi‑component volumetric images.
• Extensions to core codestream: Adds codestream syntax and interchange format extensions for 3D data (tile, tile-component, code‑block, packet semantics).
• Three-dimensional wavelet transform: Supports arbitrary wavelet kernels and isotropic decomposition across X, Y and Z axes (sub-band notation [H|L|X][H|L|X][H|L|X]).
• 3D code-blocks and scans: Specifies 3D code‑block geometry and scan order (slice‑by‑slice and stripe processing), including a three‑dimensional Morton scanning order for sub-band signalling.
• Multi-component and non-linear transforms: Enables multi‑component transformations and non-linear mappings for compound volumetric data.
• Region‑of‑Interest (ROI): ROI coding extensions to prioritize or losslessly preserve specific volumetric regions within the data.
• Quantization & coefficient modelling: Modifications to inverse quantization and coefficient bit modelling to handle volumetric coefficients.
• Conformance constraints: Each encoding/decoding extension must be used only with specified coding processes and follow the normative requirements in the standard.

Applications and who uses it

ISO/IEC 15444-10 is intended for developers and organizations working with large 3D datasets who need efficient, standardized compression and interchange:

• Medical imaging (CT, MRI, volumetric microscopy) requiring lossless or high‑quality lossy compression and ROI preservation.
• Scientific and remote sensing data (volumetric simulation outputs, seismic cubes).
• Digital archives and cultural heritage repositories storing 3D image stacks.
• Software and hardware vendors implementing JP3D codecs, image processing libraries, and viewers.
• Standards and interoperability engineers integrating JP3D into workflows or file formats.

Related standards

• ISO/IEC 15444-1 (JPEG 2000 Core coding system) - Rec. ITU‑T T.800
• ISO/IEC 15444-2 (JPEG 2000 Extensions) - Rec. ITU‑T T.801
• ISO/IEC 15444 (other parts) for motion, file formats and APIs (see ISO/IEC 15444 parts list)

Keywords: ISO/IEC 15444-10:2011, JPEG 2000 3D, JP3D, volumetric image compression, wavelet transform, region of interest, lossless compression, lossy compression, 3D code-blocks.