Choroid Explorer by Maloca Peter, University of Basel
Entry in category 4. ©Peter Maloca; See also bit.ly/snsf_comp_copy
A 3D volume stack (obtained by non-invasive Optical Coherence Tomography ; OCT) was freed from speckle-noise using a recently developed three-dimensional vector-field denoiser from the University of Basel (Gyger-Maloca-Cattin filter). The choroidal vessels were extracted and a 3D mesh was produced. Artificial lights and textures were added and a flight-through programmed. Swept-Source OCT (SSOCT) using coherent laser light source of 1050 nanometer, stack of 256 cross-sectional scans, volume size 9x12 millimeter. Vertical diameter 100 micrometer. Length of exploring pathway in this choroid is about 2000 mircometer.
((The upload yesterday was not possible as this website had no contact up to midnight! I tried a hundred times)) Optical Coherence tomography is a new an non-invasive imaging technology in ophthalmology that is used to diagnose and monitor retinal diseases like glaucoma, diabetic retinopathy, multiple sclerosis or tumors of the eye or brain. Measurements can be repeated as there is no harmul side-effect to the patient. Previously, the choroid was very difficult to assess as the speckle-noise degrades the image quality. Removing the speckle noise from the images depicts an important step futzher in imaging and give a new view into the three-dimensional architecture of the retinal vessels. ¦ Image#4_39
Choroid Explorer by Maloca Peter, University of Basel
Entry in category 4. ©Peter Maloca; See also bit.ly/snsf_comp_copy
A 3D volume stack (obtained by non-invasive Optical Coherence Tomography ; OCT) was freed from speckle-noise using a recently developed three-dimensional vector-field denoiser from the University of Basel (Gyger-Maloca-Cattin filter). The choroidal vessels were extracted and a 3D mesh was produced. Artificial lights and textures were added and a flight-through programmed. Swept-Source OCT (SSOCT) using coherent laser light source of 1050 nanometer, stack of 256 cross-sectional scans, volume size 9x12 millimeter. Vertical diameter 100 micrometer. Length of exploring pathway in this choroid is about 2000 mircometer.
((The upload yesterday was not possible as this website had no contact up to midnight! I tried a hundred times)) Optical Coherence tomography is a new an non-invasive imaging technology in ophthalmology that is used to diagnose and monitor retinal diseases like glaucoma, diabetic retinopathy, multiple sclerosis or tumors of the eye or brain. Measurements can be repeated as there is no harmul side-effect to the patient. Previously, the choroid was very difficult to assess as the speckle-noise degrades the image quality. Removing the speckle noise from the images depicts an important step futzher in imaging and give a new view into the three-dimensional architecture of the retinal vessels. ¦ Image#4_39