Movement tracking and false positive reduction method for microwave colonoscopy systems
This paper presents a novel computational method for addressing the challenge of uncontrolled antenna movement in microwave imaging systems for colonoscopy. The proposed method tracks the movement of the antenna array by analyzing phase shifts in S-parameters across multiple channels. By exploiting...
| Authors: | , , , , |
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| Format: | article |
| Publication Date: | 2025 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/424690 |
| Online Access: | https://hdl.handle.net/2117/424690 https://dx.doi.org/10.1109/JERM.2024.3476964 |
| Access Level: | Open access |
| Keyword: | Colorectal cancer False positive reduction Microwave imaging Movement compensation Phantom measurements Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo |
| Summary: | This paper presents a novel computational method for addressing the challenge of uncontrolled antenna movement in microwave imaging systems for colonoscopy. The proposed method tracks the movement of the antenna array by analyzing phase shifts in S-parameters across multiple channels. By exploiting the symmetry of the probe and correlating phase changes with displacement, this technique reduces false positives due to probe movements artifacts in real-time. Simulated and experimental results in a colon phantom model show that this method can correct displacements of up to 6 mm, reducing the artifacts in reconstructed images notably. |
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