PubMed Health⌕ Search

Biomedical subjects

M Pötzsch

Publications and source records attributed to M Pötzsch.

4 recordsLinked to original sources
PubMed1996

Improving object recognition by transforming Gabor filter responses.

Previous work described a biologically motivated object recognition system with Gabor wavelets as basic feature type. These features are robust against slight distortion, rotation and variation in illumination. We here describe extensions of the system that address image variance due to arbitrary in-plane rotation, substantial scale changes and moderate depth rotation of objects, and to background variation, using simple linear transformation of the Gabor filter responses. The performance of the system is enhanced significantly.

Journal Article↗
PubMed1990

[Results of a study of glucocorticoid receptors in lymphocytes of patients with endogenous depression].

Increased plasma cortisol levels are found not only in patients with Cushing disease but also in patients suffering from endogenous depression. Because patients with endogenous depression fail to show any clinical signs of Cushing disease, it is supposed that the cells of these patients are relatively resistant to increased glucocorticoid levels. To test this hypothesis 20 patients with endogenous depression and 20 healthy controls were examined for plasma cortisol level and modulation of mitogen induced lymphocyte transformation by glucocorticoids. Results point to a relative resistance of patient's T-lymphocyte transformation to the inhibitory effect of glucocorticoids when compared with controls.

Depressive Disorder↗