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This paper presents a new approach to tracking objects using motion similarity measure for pairs of objects, with an emphasis on collaborative tracking. Assuming the distribution of motion in a scene can be decomposed into multiple Gaussian distributions, the motion of each object can be computed and matched. An object sharing similar motion characteristics with the tracked object can be used as a...
Optical techniques offer a number of potential advantages for imaging dynamic spatio-temporal patterns of activity in neural tissue. The methods provide the wide field of view required to image population activation across networks, while allowing resolution of the detailed structure of individual cells. Optical probes can provide high temporal resolution without penetrating the tissue surface. However,...
We describe a compact, focusing image probe to record rapid optical changes from neural tissue. A gradient index (GRIN) lens served as a relay lens from tissue to a microscope objective which projected an image onto a CCD camera. The microscope objective and camera assembly was adjusted independently from the GRIN lens, allowing focus changes without disturbing the probe/tissue interface; firm contact...
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