地理研究
地理研究
지리연구
GEOGRAPHICAL RESEARCH
2001年
1期
62-67
,共6页
模式识别%卫星图像%特征抽取
模式識彆%衛星圖像%特徵抽取
모식식별%위성도상%특정추취
在具有高空间分辨率特性的图像上,城市中大型建筑物、道路、河流、湖泊和其他人工地物形状特征和纹理特征清晰可辨。针对高分辨率卫星图像的特点,文章以水体类型识别为例,从卫星数字图像目标地物波谱特征抽取入手,通过图像分类,将水体从背景中分离并予以识别,同时实现像素重组。在区域分割与边界跟踪基础上,对卫星图像进行水体形状特征的抽取与描述,实现不同水体类型的识别。
在具有高空間分辨率特性的圖像上,城市中大型建築物、道路、河流、湖泊和其他人工地物形狀特徵和紋理特徵清晰可辨。針對高分辨率衛星圖像的特點,文章以水體類型識彆為例,從衛星數字圖像目標地物波譜特徵抽取入手,通過圖像分類,將水體從揹景中分離併予以識彆,同時實現像素重組。在區域分割與邊界跟蹤基礎上,對衛星圖像進行水體形狀特徵的抽取與描述,實現不同水體類型的識彆。
재구유고공간분변솔특성적도상상,성시중대형건축물、도로、하류、호박화기타인공지물형상특정화문리특정청석가변。침대고분변솔위성도상적특점,문장이수체류형식별위례,종위성수자도상목표지물파보특정추취입수,통과도상분류,장수체종배경중분리병여이식별,동시실현상소중조。재구역분할여변계근종기출상,대위성도상진행수체형상특정적추취여묘술,실현불동수체류형적식별。
The data of satellite remote sensing can provide real-time information of the earth's surface accurately. Now the commercial satellites can provide the satellite images with the resolution between 10 meter and 1 meter. With those high spatial resolution images, shape features and texture features of the ground objects including large buildings of city, roads, rivers, lakes and other man-made objects are very clear. With the characters of the high resolution satellite image, we will use the recognition of the type of water bodies as an example, begin with the extraction of the spectrum features of the ground objects from the satellite digital images, separate water bodies from background and recognize it through the classification of the image, implement the recombination of the pixels, then extract and describe the shape features of water bodies and implement the recognition of various water bodies on the partition of areas and the tracing of boundary. The experiments of the recognition of various types of water bodies on the satellite image prove this recognizing method is feasible with high spatial resolution satellite images.