Yashon O Ouma
Biographic Data
| ID | 9092601 |
|---|---|
| NAME | Yashon O Ouma |
| GIVEN NAMES | Yashon |
| FAMILY NAME | O Ouma |
| SIGNATURE | OUMA Y O |
| AFFILIATIONS | Chiba University |
| ORCID | 0000-0003-1163-0385 |
| VERIFIED | Yes |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2005 |
| LATEST PUBLICATION YEAR | 2007 |
| H-INDEX | 0 |
Lake water body mapping with multiresolution based image analysis from medium‐resolution satellite imagery
Shoreline mapping and shoreline change detection are critical for safe navigation, coastal resource management, coastal environmental protection and sustainable coastal development and planning. The main difficulty of traditional shoreline mapping from remote sensing classification is the lack of adequate tools to characterize and combine texture and spectral information effectively. This paper introduces a method for unsupervised lake shoreline …
Dynamism and abundance of water hyacinth in the Winam Gulf of Lake Victoria
Aquatic plant infestations impede lake traffic through navigable waterways, block ports and passenger ferry terminals. Timely, accurate information on aquatic plant dynamism, distributions and density is required both by public agencies and by private companies engaged in aquatic plant control efforts and the local population whose economic livelihood depends on the lake. This study combined the interpretation of remote sensing and climatic varia…
Optical satellite‐sensor based monitoring of glacial coverage fluctuations on Mount Kenya, 1987–2000
This paper presents the results of glacier change detection on Mount Kenya, based on optical (Landsat) sensor data dated 25 February 1987 and 21 February 2000 from Landsat TM and Landsat ETM+, respectively. The normalized difference snow index (NDSI) was used to derive the overall glacier, snow/ice and water mass on the mountain peak. The normalized ratio between band 4 and band 5 was then used to isolate the glacier from snow and water via histo…
A fast environmental change detection approach based on unsupervised multiscale texture clustering
In this paper, an analytic model for mapping land cover change that uses a novel multiresolution analysis in concert with image differencing to identify environmental change/no‐change areas is presented. The method adaptively chooses thresholds to segment targets from background, by using multiscale decomposition of the image difference. Changes due to atmospheric influences are automatically suppressed and resolution heterogeneity problems minim…
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Dynamism and abundance of water hyacinth in the Winam Gulf of Lake Victoria
Aquatic plant infestations impede lake traffic through navigable waterways, block ports and passenger ferry terminals. Timely, accurate information on aquatic plant dynamism, distributions and density is required both by public agencies and by private companies engaged in aquatic plant control efforts and the local population whose economic livelihood depends on the lake. This study combined the interpretation of remote sensing and climatic varia…
Optical satellite‐sensor based monitoring of glacial coverage fluctuations on Mount Kenya, 1987–2000
This paper presents the results of glacier change detection on Mount Kenya, based on optical (Landsat) sensor data dated 25 February 1987 and 21 February 2000 from Landsat TM and Landsat ETM+, respectively. The normalized difference snow index (NDSI) was used to derive the overall glacier, snow/ice and water mass on the mountain peak. The normalized ratio between band 4 and band 5 was then used to isolate the glacier from snow and water via histo…
A fast environmental change detection approach based on unsupervised multiscale texture clustering
In this paper, an analytic model for mapping land cover change that uses a novel multiresolution analysis in concert with image differencing to identify environmental change/no‐change areas is presented. The method adaptively chooses thresholds to segment targets from background, by using multiscale decomposition of the image difference. Changes due to atmospheric influences are automatically suppressed and resolution heterogeneity problems minim…
Lake water body mapping with multiresolution based image analysis from medium‐resolution satellite imagery
Shoreline mapping and shoreline change detection are critical for safe navigation, coastal resource management, coastal environmental protection and sustainable coastal development and planning. The main difficulty of traditional shoreline mapping from remote sensing classification is the lack of adequate tools to characterize and combine texture and spectral information effectively. This paper introduces a method for unsupervised lake shoreline …
Geography (3 works) · Geology (3 works) · Geology (3 works) · Remote sensing (3 works) · Artificial Intelligence (2 works) · Artificial Intelligence (2 works) · Change detection (2 works) · Computer Science (2 works) · Computer vision (2 works) · Image resolution (2 works)