Feature extraction from aerial images and structural stereo matching
نویسندگان
چکیده
In this paper, a method of generating structural descriptions of stereo image pairs and their matching to recover 3-D form of objects in space, is discussed. The method consists of the following steps: rstly, straight line segments are extracted in both images and the relations among them are investigated. The relational subgraphs are constructed then, and the correspondence graph is created. Using the "stable marriage" searching algorithm the features in one image corresponding to features in the other image are found. The method was tested on a set of aerial stereo images of urban scenes.
منابع مشابه
Object Information Automatic Extraction from High Resolution Stereo Pairs by Dense Image Matching and Information Fusion
With the advent of digital sensor, the requirement for new Photogrammetric software is urgent to quick object information extraction from high-resolution stereo pairs. This paper describes an effective combined approach for digital surface reconstruction and thematic information extraction automatically. Digital surface reconstruction from stereo pairs is realized by multi-level feature matchin...
متن کاملطراحی و توسعه یک روش تلفیقی تناظریابی ناحیه ای و عارضه مبنای جدید برای توجیه نسبی در فتوگرامتری برد کوتاه
By far, many stereo-matching techniques have been successfully proposed and applied in digital aerial photogrammetry. However, due to some problems such as large parallaxes, occlusions, geometric deformations, and repetitive patterns in convergent close range images, these methods may not be applicable to the same level of success as that of aerial imagery. In order to overcome these shortcomin...
متن کاملContourlet-Based Edge Extraction for Image Registration
Image registration is a crucial step in most image processing tasks for which the final result is achieved from a combination of various resources. In general, the majority of registration methods consist of the following four steps: feature extraction, feature matching, transform modeling, and finally image resampling. As the accuracy of a registration process is highly dependent to the fe...
متن کاملPerformance Evaluation of Scene Registration and Stereo Matching for Artographic Feature Extraction
One goal of automated cartography is to generate an accurate 3-D model of man-made structures and natural terrain. Some of the most challenging problems in cartographic feature extraction occur in dense urban areas where the level of detail and scene clutter greatly complicate traditional map compilation techniques. In this paper, we describe experiments toward a comprehensive stereo analysis s...
متن کاملMatching topographic structures in stereo vision
Stereo vision is important m determining three-dimensional positions of tile visible surfaces in images. Most existing stereo matching methods involve matching low-level image features such as edges. A stereo matching technique based on matching high-level image features is described in this paper. The high-level image features extracted are topographic structures, arc segments and region segme...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1996