10:30 〜 10:45
▲ [16a-421-7] Fibre-Bundle-Basis Compressive Sensing for In-vivo Endoscopy
キーワード：Compressive Sensing, Fibre Bundle, Imaging
Neural activity in deep brain structures is typically inaccessible optically due to light scattering in the cortex. Fibre bundle endoscopy allows us to circumvent the problem at the cost of some invasiveness to the animal. The benefit of such a fibre is that it can be used for, fast, wide field microscopy and remain insensitive to bending for the duration of recording. However a significant problem encountered with fibre bundles is the low spatial resolution of the images which is dictated by the inter core spacing in the bundle. We offer a solution to this problem by up sampling the images acquired by the fiber by an order of magnitude. This is done by exploiting known sparsity properties of our expected image to solve a system of under determined linear equations. Since this is done entirely in pre- and post- processing it does not have any impact on the temporal resolution of the imaging system. We present simulations of fibre bundle imaging as well as sample images recorded with a measured fibre intensity-transfer-matrix. We find the results promising for future in-vivo studies.