Scale-Space Theory with Applications: Selected Publications

General

Review articles

Scale-space and other multi-scale representations

Feature detection, automatic scale selection and scale-invariant image descriptors

Feature detection methods based on the combination of Gaussian derivative operators at multiple scales. Special focus is given to the problem of scale selection, in order to adapt the local scales of processing to the local image structure. Specifically, the notion of automatic scale selection based on gamma-normalized derivatives makes it possible to define scale-invariant image features. The use of such scale-invariant image features allows the vision system to automatically handle the unknown scale variations that may occur in real-world image data, due to objects of different physical size as well as objects with different distances to the camera.

Object recognition

Multi-scale processing of temporal data

Spatio-temporal analysis and velocity adaptation with application to recognition of activities

Direct methods for recognizing spatio-temporal events with associated activities based on the local spatio-temporal image structure, without explicit inclusion of tracking mechanisms or other temporal trajectories. In order to handle a priori unknown relative motions relative to the observer, a notion of local velocity adaptation is introduced.

Estimation of affine image deformations and direct computation of cues to surface shape (with theory for multi-scale second moment matrices/structure tensors and affine shape adaptation)

Theories and algorithms for shape from texture and shape from disparity gradients based on affine distortions of local 2-D brightness structure. Specifically, this framework includes a theory for local affine normalization of local image descriptors by affine shape adaptation, which makes it possible to define affine invariant image features. These papers also outline the theory for multi-scale second-moment matrices also referred to as structure tensors.

Structure and motion estimation (including visual control based on the 3-D hand mouse)

Hand tracking and gesture recognition

Medical image analysis

Applications

Applications of scale-space techniques to different types of computer vision problems.

External links

Further publications on related topics are available from Google Scholar, List of publications of the Computational Vision and Active Perception Laboratory, References in the Vision Bibliography (Annotated Computer Vision Bibliography), CiteSeerX and CiteSeer.