[PDF] Top 20 isprsarchives XXXVIII 3 W22 179 2011

... Figure 3 shows a simple model of a photogrammetric sensor with one projector and one camera. In general the sensor has a fixed triangulation angle α≈20° between the camera and projector. The measurement volume of ... Lihat dokumen lengkap

... In the following examples the camera systems may have different opening angles but the same base length of 0.25 m. In Figure 4 the positioning accuracy for two simulated camera systems are presented. Green ellipses show ... Lihat dokumen lengkap

... section 3 (just the usual default settings) give less than four interest points sometimes and on many other occasions RANSAC still fails to come up with a plausible ... Lihat dokumen lengkap

... close-range applications. Hence, the rotation and translation parameters can be estimated via 3D-to-2D correspondences between 3D points derived from the TLS measurements and 2D image points of the respective range ... Lihat dokumen lengkap

... In this study, intensity image was created from laser scanner data and the registration parameters were computed with keypoints extracted by SIFT method from these images.. The results w[r] ... Lihat dokumen lengkap

... Area based image matching algorithm offers a dense disparity map which is needed for 3-D construction of a scene from stereo images. In the proposed composite technique of image matching, three methodologies are ... Lihat dokumen lengkap

... For all these reasons an optimization in the image selection phase is needed. To start with, a selection based on the information derived from the approximated model is accomplished. For a specified point in the DSM, all ... Lihat dokumen lengkap

... The cameras are directly connected to a PC via a Gigabit- Ethernet adapter using their GigE vision interface. We use two CCTV optics having a different focal length of 6.1 mm and 8 mm respectively with the cameras. The ... Lihat dokumen lengkap

... The key idea behind our approach is to express the landmark position error ˜X=X−Xˆ the dashed arrow in the estimated camera co-ordinate frame in terms of the unknown transformation betw[r] ... Lihat dokumen lengkap

... crowds. They obtained scale invariant and good results in ter- restrial images. Unfortunately, these images do not enable mon- itoring large events, and different crowd samples should be de- tected before hand to train ... Lihat dokumen lengkap

... In this work, the input data is a set of terrestrial images shot from a mobile-mapping vehicle. We also suppose that we have a 3D geometric model of the scene, segmented in areas that are ho- mogeneous in reflectance. ... Lihat dokumen lengkap

... The visibility graph allows to cut a reconstruction/texture map- ping problem into sub-problems by inputing only the images see- ing a scene element well enough. A trivial approach to process an entire scene sequentially ... Lihat dokumen lengkap

... In this study, the optimal features are essentially spectral or tem- poral. Textural features should give better results on panchro- matic images with a spatial resolution of 2m. Indeed, the rela- tively low spatial ... Lihat dokumen lengkap

... 3.2 Mixed classes and intra-class radiometric variations Building objects can appear very different from each other on the image, since they are not covered by the same roofing ma- terial. Thus, they can not be described ... Lihat dokumen lengkap

... Detailed mapping of the water course and river banks in this region on SOI maps and the post-monsoon IRS satellite data of 2000, 2004 and 2006 showed prominent, distinct shifting at various locations between the years ... Lihat dokumen lengkap

... As part of (VCP – F), an optimal phytomass density observation, modeling and mapping approach for national-scale forest carbon pool assessment was defined. A multi-institutional national phytomass measurement program ... Lihat dokumen lengkap

... As mentioned earlier, the existing disaster-related data is extremely heterogeneous and different vocabulary could be used in different sources. The reason why semantic-related technology is employed is that they can be ... Lihat dokumen lengkap

... The proposed improved detector employs a combination of height, width, angle, colour and texture information with the aim of more comprehensively separating buildings from trees. Although cues other than texture were ... Lihat dokumen lengkap

... First façade planes have to be detected, what is described in Section 2. After that every façade is processed on its own to detect the windows, what is delineated in Section 3. This has three parts. The first one ... Lihat dokumen lengkap

... In this paper, vehicles were detected from the image-sequence stabilized on the road area as recorded by a hovering helicopter. It turns out to be possible to extract vehicles, as blobs, in several difficult situations. ... Lihat dokumen lengkap