The phrase "a region based" is not correct in standard written English.
It may be intended to describe something that is based on a specific region, but it requires additional context or modification to be grammatically correct.
Example: "The study focuses on a region-based analysis of climate change impacts."
Alternatives: "region-specific" or "region-oriented".
The indexing is done using a hashing technique where the hashing function makes use of a region based QuadTree structure.
ART is used as a region based shape descriptor, which represents the global aspects of an image.
The primary tool for segmentation is a region based active membrane which evolves under image based external energy.
You are the customisable son or daughter of a Rhyhorn racer who has just moved to a region based heavily on France, when you and some friends are given the task of researching Mega-Evolution.
The validation was done by (1) a multi-resolution validation method and (2) a region based method using the wards of the city.
Also, a region based (upper and middle regions of Mahanadi basin) analysis of extreme rainfall is carried out using daily mean areal rainfall.
In [30], the authors proposed a region-based active contour model based on local image fitting to extract the local image information, with respect to intensity inhomogeneity.
Our scheme is based on a combination of a fixed grid-based method, known for its scalability, and a region-based strategy, which provides greater accuracy than the fixed grid-based method.
For a region-based image retrieval system, performance depends critically on the accuracy of object segmentation.
By transforming the image-level segmentation problem into a region-based problem, we are able to learn from far fewer images than other approaches.
We propose a new framework for bottom-up perceptual grouping, which relies on a region-based segmentation.
