Video Slice: Image Compression and Transmission for Agricultural Systems
When agricultural automation systems are required to send cultivation field images to the cloud for field monitoring, pay-as-you-go mobile communication leads to high operation costs. To minimize cost, one can exploit a characteristic of cultivation field images wherein the landscape does not change...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/11/3698 |
| _version_ | 1797532595167166464 |
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| author | Takaaki Kawai |
| author_facet | Takaaki Kawai |
| author_sort | Takaaki Kawai |
| collection | DOAJ |
| description | When agricultural automation systems are required to send cultivation field images to the cloud for field monitoring, pay-as-you-go mobile communication leads to high operation costs. To minimize cost, one can exploit a characteristic of cultivation field images wherein the landscape does not change considerably besides the appearance of the plants. Therefore, this paper presents a method that transmits only the difference data between the past and current images to minimize the amount of transmitted data. This method is easy to implement because the difference data are generated using an existing video encoder. Further, the difference data are generated based on an image at a specific time instead of the images at adjacent times, and thus the subsequent images can be reproduced even if the previous difference data are lost because of unstable mobile communication. A prototype of the proposed method was implemented with a MPEG-4 Visual video encoder. The amount of transmitted and received data on the medium access control layer was decreased to approximately 1/4 of that when using the secure copy protocol. The transmission time for one image was 5.6 s; thus, the proposed method achieved a reasonable processing time and a reduction of transmitted data. |
| first_indexed | 2024-03-10T11:01:30Z |
| format | Article |
| id | doaj.art-70d6345fe4934654aa0c97fb1466b89c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T11:01:30Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-70d6345fe4934654aa0c97fb1466b89c2023-11-21T21:27:33ZengMDPI AGSensors1424-82202021-05-012111369810.3390/s21113698Video Slice: Image Compression and Transmission for Agricultural SystemsTakaaki Kawai0Graduate School of Science and Technology, Shizuoka University, Hamamatsu City 432-8011, JapanWhen agricultural automation systems are required to send cultivation field images to the cloud for field monitoring, pay-as-you-go mobile communication leads to high operation costs. To minimize cost, one can exploit a characteristic of cultivation field images wherein the landscape does not change considerably besides the appearance of the plants. Therefore, this paper presents a method that transmits only the difference data between the past and current images to minimize the amount of transmitted data. This method is easy to implement because the difference data are generated using an existing video encoder. Further, the difference data are generated based on an image at a specific time instead of the images at adjacent times, and thus the subsequent images can be reproduced even if the previous difference data are lost because of unstable mobile communication. A prototype of the proposed method was implemented with a MPEG-4 Visual video encoder. The amount of transmitted and received data on the medium access control layer was decreased to approximately 1/4 of that when using the secure copy protocol. The transmission time for one image was 5.6 s; thus, the proposed method achieved a reasonable processing time and a reduction of transmitted data.https://www.mdpi.com/1424-8220/21/11/3698agricultureimage file compressionInternet of Things |
| spellingShingle | Takaaki Kawai Video Slice: Image Compression and Transmission for Agricultural Systems Sensors agriculture image file compression Internet of Things |
| title | Video Slice: Image Compression and Transmission for Agricultural Systems |
| title_full | Video Slice: Image Compression and Transmission for Agricultural Systems |
| title_fullStr | Video Slice: Image Compression and Transmission for Agricultural Systems |
| title_full_unstemmed | Video Slice: Image Compression and Transmission for Agricultural Systems |
| title_short | Video Slice: Image Compression and Transmission for Agricultural Systems |
| title_sort | video slice image compression and transmission for agricultural systems |
| topic | agriculture image file compression Internet of Things |
| url | https://www.mdpi.com/1424-8220/21/11/3698 |
| work_keys_str_mv | AT takaakikawai videosliceimagecompressionandtransmissionforagriculturalsystems |