نتایج جستجو برای: panoramic projection
تعداد نتایج: 68816 فیلتر نتایج به سال:
This paper shows that there exist linear models for sensor pose estimation for multi-view panoramas defined by a symmetric or leveled pair of cylindric images. It assumes that pairs of corresponding points have been detected already in those pairs of panoramas. For the first time a cost function is formulated whose minimization solves the pose estimation problem for these two general cases of m...
Linear array CCD based panoramic cameras are being used for measurement applications. The elegant image acquisition mode and the high information content of those images make them suitable candidates for quantitative image analysis. For accurate measurements a sophisticated camera calibration is an important prerequisite. In our previous investigations we designed a sensor model for linear arra...
Mobile robots need an internal representation of their environment to do useful things. Usually such a representation is some sort of geometric model. For our robot, which is equipped with a panoramic vision system, we choose an appearance model in which the sensoric data (in our case the panoramic images) have to be modeled as a function of the robot position. Because images are very high-dime...
Radiography of the maxillary sinuses is often undertaken using computed tomography, magnetic resonance imaging, or the occipito-mental plain x-ray film projection. However the panoramic radiograph has been found superior to the latter for detection of cyst-like densities. [1]. The occipito-mental technique, first described by Waters and Waldron, clearly demonstrates the superior, inferior and...
Traditional stereo systems have a small field of view which limits their usefulness for certain applications. By imaging curved mirrors, the field of view of conventional cameras can be enhanced. In this paper, we present the design of a compact panoramic stereo camera which uses parabolic mirrors and is capable of producing 360 panoramic depth maps at the rate of several frames per second. Vid...
Panoramic images have been theme of intense research in the last years. A well-known format for panoramic images is the equirectangular one (examples can be seen in the result section). Equirectangular images may be input data for methods that create less distorted panoramic images. The method proposed by Carroll et al. [1] and detailed by Sacht [2] uses the localization of lines and faces to c...
Projective texture mapping is used to project a texture map onto scene geometry. It has been used in many applications, since it eliminates the assignment of fixed texture coordinates and provides a good method of representing synthetic images or photographs in image-based rendering. But conventional projective texture mapping has limitations in the field of view and the degree of navigation be...
This paper considers the vision-based estimation and pose control with a panoramic camera via passivity approach. First, a hyperbolic projection of a panoramic camera is presented. Next, using standard body-attached coordinate frames (the world frame, mirror frame, camera frame and object frame), we represent the body velocity of the relative rigid body motion (position and orientation). After ...
A vision based navigation system is presented for determining a mobile robot’s position and orientation using panoramic imagery. An omni-directional image sensor mounted on the robot is useful in obtaining a Æ field of view, permitting navigational markers from all sides to be viewed simultaneously. In this novel approach, navigational markers are recognized using software from the popular ARTo...
Several techniques have been used for terrestrial panoramic imaging. Known methods for panoramic imaging include: mosaicking/stitching of a rotated frame array CCD camera, mirror technology including single mirror and multi mirrors, near 180 degrees with large frame cameras or one shot with fish-eye lens and recently a linear array-based panoramic camera by horizontal rotation. Up to now, the t...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید