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. Author manuscript; available in PMC: 2015 May 25.
Published in final edited form as: Int IEEE EMBS Conf Neural Eng. 2011 Apr-May;2011:613–616. doi: 10.1109/NER.2011.5910623

Fig. 2. Image processing.

Fig. 2

(a) Image segmentation of a video frame. Pixels interior to the outline were defined to be part of the animal and pixels exterior to the outline are deemed part of the background. The box represents the ROI. (b) Behavioral signal: coefficient of the first PC over time. Peak arrow indicates time of maximal retraction (typical ROI shown in panel c) of the contralateral arm. Trough arrow indicates time of maximal protraction (typical ROI shown in panel d).