Adaptive Landmark Identification Based on Pertinent Region Extraction
نویسنده
چکیده
The main purpose of this paper is about the relative merits of automated feature detection protocols on cephalometricrelated digital radiology images. While the domain dependent techniques such as handcrafted masks are shown to be more accurate than pixel-based domain independent methods, the process for determining these shapes was unwieldy with respect to time taken and subjectivity. This paper discusses the use of a Pulse-Coupled Neural Network (PCNN) technique as a segmentation technique for parts of a radiology image. The results of this investigation showed a significant improvement in detection performance when compared to the handcrafted shapes when applied to several cephalometric landmarks. This encouraging outcome augurs well for a nearautomated feature detection protocol for such medicalrelated radiology images.
منابع مشابه
Extraction of significant regions in color images for landmark identification
In this paper, we address the problem of natural landmark characterization in outdoor environments. Our approach assumes that the image has been previously processed in order to detect the most color-salient areas of the image, which are considered as possible candidates to contain a landmark. We take each of these selected areas and perform a color segmentation of them involving only the most ...
متن کاملImproving the Detection Performance in Semi-automatic Landmark Extraction
Manually extracting 3D anatomical point landmarks from tomographic images is generally tedious and time-consuming. A semiautomatic procedure for landmark extraction, which allows for interactive control, o ers the possibility to improve on this. The detection performance is decisive for the applicability of such a procedure. However, existing computational approaches to landmark detection often...
متن کاملNatural landmark extraction for mobile robot navigation based on an adaptive curvature estimation
This paper proposes a geometrical feature detection system which is to be used with conventional 2D laser range finders. It consists of three main modules: data acquisition and pre-processing, segmentation and landmark extraction and characterisation. The novelty of this system is a new approach for laser data segmentation based on an adaptive curvature estimation. Contrary to other works, this...
متن کاملLandmark localization, feature matching and biomarker discovery from magnetic resonance images
The work presented in this thesis proposes several methods that can be roughly divided into three different categories: I) landmark localization in medical images, II) feature matching for image registration, and III) biomarker discovery in neuroimaging. The first part deals with the identification of anatomical landmarks. The motivation stems from the fact that the manual identification and la...
متن کاملA framework for visual landmark identification based on projective and point-permutation invariant vectors
Autonomous robotic navigation based on machine vision, presents a challenging field in current robotics research. This task presupposes a representation of the environment and methods to process this representation and use it to derive the appropriate platform motions, in order to accomplish specific navigation goals. Following recent theories of active and purposive vision, we attempt to quali...
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 2013