Author(s):
Farrajota, Miguel 
; Rodrigues, J. M. F. ; du Buf, J. M. H.
Date: 2009
Persistent ID: http://hdl.handle.net/10400.1/880
Origin: Sapientia - Universidade do Algarve
Subject(s): Visão humana
Document details
Multi-scale keypoint annotation - a biological approach
Description
The primary visual cortex employs simple, complex and end-stopped cells to create a scale space of 1D singularities (lines and edges) and of 2D singularities (line and edge junctions and crossings called keypoints). In this paper we show first results of a biological model which attributes information of the local image structure to keypoints at all scales, ie junction type (L, T, +) and main line/edge orientations. Keypoint annotation in combination with coarse to fine scale processing facilitates various processes, such as image matching (stereo and optical flow), object segregation and object tracking.
The primary visual cortex employs simple, complex and end-stopped cells to create a scale space of 1D singularities (lines and edges) and of 2D singularities (line and edge junctions and crossings called keypoints). In this paper we show first results of a biological model which attributes information of the local image structure to keypoints at all scales, ie junction type (L, T, +) and main line/edge orientations. Keypoint annotation in combination with coarse to fine scale processing facilitates various processes, such as image matching (stereo and optical flow), object segregation and object tracking.
Document Type
Conference Object
Language English
Language English
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