| Popis: |
Many studies on surgical skill analysis have reported results on classification of different skills. However, regardless of the classification problem, only few of them have addressed the problem of task evaluation. In this paper, we propose a simple and computationally lightweight neural network to provide evaluation scores on a given surgery task. The used neural network has three hidden layers and one output node. The output is trained so that it fits average scores of performance on a single known surgery task. Three levels of performance are used: expert, intermediate and novice. We evaluate the performance of the proposed approach on three different surgical gestures: knot-tying, needle passing and suturing. To each surgery gesture, we associate one instantiation of the designed network, which is trained with the corresponding data. We show that this method gives evaluation scores that are more plausible than a single network, which is requested to provide evaluation scores for different tasks. |
