G06T 7/00 - Definition 
Definition statement
This subclass covers:
Computational analysis of images to determine information, e.g. parameters or characteristics, therefrom
Segmentation, i.e. partitioning an image into regions
Edge detection, i.e. detection of edge features in an image
Analysis of motion, i.e. determining motion of an image subject, or of the camera having acquired the images; Tracking; Change detection
Determination of transform parameters for the alignment of images, i.e. image registration
Analysis of texture, i.e. analysis of colour or intensity features which represent a perceived image texture
Depth or shape recovery, i.e. determination of scene depth parameters by consideration of image characteristics
Analysis of geometric attributes
Determining the position or orientation of objects
Determination of image colour characteristics
Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
Relationship between large subject matter areas
G06T 7/00 covers the details of image analysis algorithms, insofar it deals with the related image processing algorithms per se. Documents which merely mention the general use of image analysis without details of the underlying image analysis algorithms, are classified in the application place. Where the image analysis is functionally linked and restricted to specific image acquisition or display hardware or processes it is classified in the application place, otherwise it is classified in G06T 7/00. Where the essential technical characteristics relate both to the image analysis detail and to its particular use or special adaptation, classification is made in both G06T 7/00 and the application place.
References relevant to classification in this subclass
This subclass does not cover:
Computerised tomographs | A61B 6/03 |
Signal processing for Nuclear Magnetic Resonance (NMR) imaging systems | G01R 33/54 |
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns | G06K 9/00 |
Scanning, transmission or reproduction of documents or the like | H04N 1/00 |
Transforming light or analogous information into electric information using solid-state image sensors | H04N 5/335 |
Stereoscopic television systems | H04N 13/00 |
Methods of arrangements for coding, decoding, compressing or decompressing digital video signals | H04N 19/00 |
Special rules of classification
Where the essential technical characteristics of the invention relate both to the image analysis detail and to its particular use or special adaptation, classification is made in both G06T 7/00 and the relevant application place in other subclasses.
Glossary of terms
In this subclass, the following terms or expressions are used with the meaning indicated:
| Feature | a significant image region or pixel with certain characteristics, for example a feature point, landmark, edge, corner or blob, typically determined by image operators. |
| Image analysis | the extraction of information from images through the use of image processing techniques acting upon image data, such as intensity, colour, motion and spatial frequency characteristics. |
Synonyms and Keywords
In patent documents the following abbreviations are often used:
| SLAM | Simultaneous Localization And Mapping |