Fuzzy Logic Based Gait Classification for Hemiplegic Patients
Description
In this study a fuzzy logic classification system was used first to discriminate healthy subjects from patients rather than classifying those using Brunnstrom stages. Decision making was performed in two stages: feature extraction of gait signals and the fuzzy logic classification system which is used Tsukamato-type inference method. According to our signal feature extraction studies, we focused on temporal events and symetrical features of gait signal. Developed system has six inputs while four of them for temporal features evaluation rule block and two of them symmetrical features evaluation rule block. Our simulation test results showed that proposed system classify correctly 100% of subjects as patient and healthy elderly. The correlation coefficient was found 0.85 for classification to subjects to correct Brunnstrom stages. The results show that classifying patients becomes increasingly difficult linearly according to hemiplegia’s severity.
| Slides | |
| 0:00 | Fuzzy Logic Based Gait Classification for Hemiplegic Patients |
| 0:18 | Stroke I |
| 1:53 | Stroke II |
| 2:03 | Study |
| 3:19 | Software |
| 3:36 | Data Gathering |
| 4:27 | Statistics about Subjects |
| 4:51 | What We Do to Reach Our Aims? |
| 5:31 | Three Orthogonal Acceleration Signals |
| 5:58 | Description of Accelerometer Signal* |
| 6:16 | Temporal Events in Stroke Hemiparesis* pt 1 |
| 6:40 | Temporal Events in Stroke Hemiparesis* pt 2 |
| 6:59 | Some Measurable Features of Gait |
| 7:05 | Some Important Notes from Literature |
| 7:34 | Symmetry and Laterality Quantification* pt 1 |
| 7:42 | Symmetry and Laterality Quantification* pt 2 |
| 8:00 | To Determine Asymmetries: Symmetry Index (SI) |
| 8:10 | Difference between the SI’s in a Sample Problem |
| 8:36 | Hemiplegic Gate Signals |
| 8:58 | Feature of Signal |
| 9:17 | Detection Algorithm* |
| 9:27 | Anteroposterior Step times |
| 9:52 | Anteroposterior Signal Ranges and Mean Values pt 1 |
| 10:02 | Anteroposterior Signal Ranges and Mean Values pt 2 |
| 10:10 | Vertical Acceleration Signals |
| 10:20 | Lateral Acceleration Signals |
| 10:23 | Comparison of some Features of Vertical Acceleration Signals pt 1 |
| 10:28 | Comparison of some Features of Vertical Acceleration Signals pt 2 |
| 10:31 | Vertical and Lateral Acceleration Signals Mean Ranges |
| 10:36 | Fuzzy Logic Based Classification |
| 11:02 | Preferred Features of Acceleration Signals |
| 11:30 | System Block Diagram Direct Fuzzy Classifier |
| 11:35 | System Structure |
| 11:58 | Fuzzy Logic System Diagram |
| 11:59 | Membership Functions of 1st Rule Block |
| 12:08 | Membership Functions of 2nd and 3rd Rule Blocks |
| 12:09 | Rules |
| 12:12 | Test (MoM) |
| 12:23 | Test Results |
| 12:26 | Tests |
| 12:51 | Classification Accuracy Assesment pt 1 |
| 13:42 | Classification Accuracy Assesment pt 2 |
| 13:48 | PMCC Results |
| 13:57 | Statistical Results |
| 14:47 | Future Works pt 1 |
| 15:03 | Future Works pt 2 |
| 15:21 | Future Works pt 3 |
| 15:45 | Thank You for Your Attention! |
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the patient have the stroke in rights side and after he get treatment he have a right knee pain for 2-3 weeks now.can u help me how that problem get it and y that patient get that pain and what treatment is suitable for he.10q