首页|高分辨率航空下视影像在林权三维指界的应用

高分辨率航空下视影像在林权三维指界的应用

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林权存量数据中,大量林权宗地红线因精度低而存在相互压盖,但宗地实地四至清晰、权属也无争议.这类宗地需要通过重新指界、重新划定宗地红线来解决相互压盖的问题.目前用于内业指界的地形图、高清影像等工作底图都有其局限性,对群众读图判读能力要求高,指界工作效果不佳.地形级实景三维模型真实模拟现实世界,打破二维视角局限,对指界群众更友好,较地形图、高清影像更适合应用于内业指界和宗地重新划定工作.利用各地已有的高分辨率航空下视影像原始航片建立地形级实景三维模型,无需重新航拍,经济性也不错.对于地形级实景三维模型在实际应用中的不足之处,本文提出了有效解决方案,也为探索高精度、免外业的林权宗地划定的新模式起到一定的积极推动作用.
Application of high-resolution aerial downward-looking images in three-dimensional demarcation of forest rights
In the data of forest right stock,a large number of red lines of forest right parcels are covered by each other due to low accuracy,but the parcels are clear,and the ownership is not controversial.It is necessary to solve the problem of mutual capping of such parcels by re-demarcating and re-delineating their red lines.At present,topographic maps,high-definition images,and other working maps used for indoor demarcation have their limitations.They have high requirements for the ability of the masses to read and interpret maps,and the demarcation work is not effective.The terrain-level three-dimensional(3D)real scene model truly simulates the real world,breaks the limitations of the two-dimensional(2D)perspective,and is more friendly to the masses for demarcation.It is more suitable for indoor demarcation and parcel rezoning than topographic maps and high-definition images.By using the existing high-resolution aerial down-looking images in various places to establish a terrain-level 3D real scene model,there is no need to re-airshot,and its economy is good.For the shortcomings of the terrain-level 3D real scene model in practical applications,an effective solution was proposed,which played a positive role in exploring a new model of high-precision and field-free delineation of forest rights.

aerial down-looking imagethree-dimensional(3D)real scene modelforest rights

黄登波、叶露

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广东省国土资源测绘院,广东 广州 510500

自然资源部华南热带亚热带自然资源重点实验室,广东 广州 510500

广东省自然资源科技协同创新中心,广东 广州 510500

航空下视影像 实景三维模型 林权

广东省科技计划

2021B1212100003

2024

北京测绘
北京市测绘设计研究院,北京测绘学会

北京测绘

影响因子:0.55
ISSN:1007-3000
年,卷(期):2024.38(10)
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