Searched for: subject%3A%22redatuming%22
(1 - 10 of 10)
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Shoja, Aydin (author)
Reflection seismology aims to estimate the Earth's subsurface elastic parameters for further investigation by geologists and engineers. This involves generating elastic waves using seismic sources and recording the Earth's response with receivers. The subsurface model is typically considered a combination of a background model and a short...
doctoral thesis 2023
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Taskin, U. (author), van der Neut, J.R. (author), Gemmeke, Hartmut (author), van Dongen, K.W.A. (author)
Whole breast ultrasound scanning systems are used to screen a women’s breast for suspicious lesions. Typically, the transducers are located at fixed positions at relatively large distances from the breast to avoid any contact with the breast. Unfortunately, these large distances give rise to large spatial domains to be imaged. These large...
journal article 2020
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Sun, Yimin (author), Verschuur, D.J. (author), Luo, Yi (author)
Near-surface problem is a common challenge faced by land seismic data processing, where often, due to near-surface anomalies, events of interest are obscured. One method to handle this challenge is near-surface layer replacement, which is a wavefield reconstruction process based on downward wavefield extrapolation with the near-surface...
journal article 2017
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Van der Neut, J.R. (author)
Seismic reflection imaging is a popular method to image, characterize and monitor the Earth's subsurface. In this method, seismic signals are sent into the subsurface and their reflections are collected. Strong heterogeneities in upper sections of the subsurface often pose a problem for imaging deeper sections. To overcome these problems, it has...
doctoral thesis 2012
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Sanaee, S.A. (author), Bakker, M.C.M. (author)
Ultrasound imaging techniques are proposed for measuring the shape and thickness of immersed waste particles (10-20 mm size) using a linear sensor array from a fixed position. For these purposes both the front and back surface of a particle needs to be reconstructed. Raw ultrasound pulse-echo and plane wave datasets and different imaging...
conference paper 2012
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Ghazali, A.R. (author)
A gas cloud is a region of gas accumulation in the subsurface, which can severely deteriorate the seismic data quality from deeper reflectors. Due to complex wave propagation through the anomaly and the resulting transmission imprint on the reflections from below this area, the image below the gas cloud is usually not properly recovered. The...
doctoral thesis 2011
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Hindriks, C.O.H. (author)
A seismic survey is conducted to acquire data which can be used to image the earth's discontuinities. On land, the near surface disturb the data severely, due to its strongly heterogeneous character. Commonly used methods use single trace methods to correct for these near surface effects based on simplified models and are known as 'statics',...
doctoral thesis 2007
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Tegtmeier, S. (author)
The purpose of a seismic survey is to produce an image of the subsurface providing an overview of the earth's discontinuities. The aim of seismic processing is to recreate this image. The seismic method is especially well suited for the exploration and the monitoring of hydrocarbon reservoirs. A majority of the algorithms, which are applied for...
doctoral thesis 2007
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Frijlink, M.O. (author)
Traditionally redatuming algorithms disregard amplitude information carried by seismic reflections, they focus just on traveltime information. Properly processing amplitude information requires much more computing resources. We develop an algorithm for redatuming that aims to preserve amplitude information. We aim to observe energy conservation...
doctoral thesis 2007
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Haimé, G.C. (author)
doctoral thesis 1992
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