CPC Subgroup
G06V 10/20 Image preprocessing
Full Title
Arrangements for image or video recognition or understanding (character recognition in images or video G06V30/10) > Image preprocessing
10 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G06V 10/22 by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
- G06V 10/24 Aligning, centring, orientation detection or correction of the image
- G06V 10/25 Determination of region of interest [ROI] or a volume of interest [VOI]
- G06V 10/26 Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
- G06V 10/28 Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
- G06V 10/30 Noise filtering
- G06V 10/32 Normalisation of the pattern dimensions
- G06V 10/34 Smoothing or thinning of the pattern; Morphological operations; Skeletonisation
- G06V 10/36 Applying a local operator, i.e. means to operate on image points situated in the vicinity of a given point; Non-linear local filtering operations, e.g. median filtering