Spatial resolution

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  1. This image, with a spatial resolution of 3.3m, was used to study Thailand’s Site 2 refugee camps, which were established to accommodate Khmer refugees on the Thai-Kampuchean border.[1]
  2. The authors investigate the phenomena affecting lateral spatial resolution (LSR) and aspect ratio (AR) in multiphoton polymerization (MPP) nanofabrication.[2]
  3. Civilian systems have had sub-metre spatial resolution since Landsat-1 was launched in 1972.[3]
  4. To explain spatial resolution, the configuration of a pushbroom imaging sensor consisting of a linear array is considered.[3]
  5. Manufacturers call it spatial resolution, but instantaneous geometric field of view (IGFOV) would be a better term.[3]
  6. For them, spatial resolution refers to identifying adjacent objects with different reflectance/emittance in the scene.[3]
  7. Spatial resolution refers to the size of one pixel on the ground.[4]
  8. The imagery varies in spatial resolution (10‒500m/pixel), revisit periods (2‒16 days) and spectral bands contained (4 to 12 bands).[4]
  9. In Raman microscopy, spatial resolution is vital for discriminating different structures in a sample.[5]
  10. The better the spatial resolution the more detailed information can be gained.[5]
  11. For example, using a 405 nm laser and an objective with a NA of 0.9 the theoretical spatial resolution achievable is 275 nm.[5]
  12. However, in reality Raman spatial resolution is commonly quoted in the order of 1 µm for ideal samples.[5]
  13. Spatial resolution, on the other hand, is a measure of the ability to distinguish two separated point-like objects from a single object.[6]
  14. Higher frequencies correspond to a more rapid decay in space and limit the size of the expansion zone, allowing higher spatial resolution.[7]
  15. (8) It was the first effort to analyze spatial resolution as a function of sample mechanical parameters and measurement conditions specific to PTIR.[7]
  16. In one case, the absorbing object is located on top of a nonabsorbing substrate, leading to a lateral spatial resolution that is limited by tip size.[7]
  17. The spatial resolution specifies the pixel size of a satellite image.[8]
  18. The higher the spatial resolution, the more detail it will contain.[8]
  19. The spatial resolution you choose depends on the smallest object that you would like to see.[8]
  20. The results indicated that for the discrimination between primary forest and non-forest, spatial resolution did not have great influence for pixel size equal or lower than 200 meters.[9]
  21. To avoid significant changes in the calculated area of these land cover types, a spatial resolution better than 100 meters is required.[9]
  22. The different procedures used to produce thematic maps can be applied over optical data collected by orbital sensors with distinct spatial resolution.[9]
  23. Townshend and Justice (1988) evaluated the influence of the spatial resolution on the global monitoring of land transformations, including landscapes in the Amazon region.[9]
  24. Spatial resolution refers to the ability of a satellite sensor to identify the smallest details of a ground object, which is also referred to as ground sample distance (GSD).[10]
  25. Satellite data users prefer to receive images with high spatial resolution, but building such a satellite sensor is challenging and costly.[10]
  26. Image fusion is nominally an alternative solution to increase spatial resolution.[10]
  27. Experimental results showed that our sensor-property-based technology can double the spatial resolution of hyperspectral images without using any additional images.[10]
  28. A limit of neutron imaging is the achievable spatial resolution, which is primarily dominated by the detector.[11]
  29. Here, we test in a motor somatotopy experiment the impact of fMRI spatial resolution on differentiation between body part representations in cortex and subcortical structures.[12]
  30. Motor somatotopy patterns were obtained in a block-design paradigm and visually cued movements of face, upper and lower limbs at 1.5, 2, and 3 mm spatial resolution.[12]
  31. Our findings support the notion of interaction between spatial resolution and image encoding scheme on topological properties of neural activity related to motor action.[12]
  32. The influence of spatial resolution and smoothing on the detectability of resting-state and task fMRI.[12]
  33. In general, spatial resolution in an image is defined as the minimum distance between two objects at which they can be considered individuals.[13]
  34. Thus, the spatial resolution in dynamic OCE is usually defined by the lateral (perpendicular to light propagation direction) resolution of the optical measurement system.[13]
  35. Consequently, the image cannot be considered simply as the convolution of an input with a PSF, and the general definition of spatial resolution must be modified.[13]
  36. Indeed, it is not clear whether high spatial resolution maps of the mechanical wave speed represent faithful images of the true tissue elastic modulus.[13]
  37. In this study, we demonstrate enhancement of the spatial resolution in digital holographic microscopy (DHM) using the spatial correlation properties of speckle patterns.[14]
  38. In these methods, the enhancement of the spatial resolution is realized by increasing the numerical aperture of the illumination system in DHM.[14]
  39. Therefore, the spatial resolution in DHM can be enhanced by decreasing the speckle size.[14]
  40. Schematic of the enhancement of the spatial resolution in DHM using speckle patterns.[14]
  41. Spatial resolution at CT depends on several factors including x-ray focal spot size, number of projection views per rotation of the x-ray tube, detector cell size, and reconstruction algorithms.[15]
  42. Another way to enhance spatial resolution is to improve the sampling of detector units by deflecting the focal spot on the x-ray tube anode along longitudinal and fan angle direction (2–4).[15]
  43. Spatial resolution at CT can be evaluated qualitatively, especially on clinical images, on which readers grade the blurring of objects of interest.[15]
  44. The spatial resolution performance is measured by the densest grid (ie, the highest line pairs per centimeter) that can be resolved in reconstructed images.[15]
  45. Commercial MALDI mass spectrometers are capable of routine imaging at resolutions greater than 25 µm and generally acquire molecular data at a spatial resolution of 50-200 µm.[16]
  46. Zavalin A, Yang J, Haase A, Holle A, Caprioli R (2014) Implementation of a Gaussian beam laser and aspheric optics for high spatial resolution MALDI imaging MS.[16]
  47. Laser beam filtration for high spatial resolution MALDI imaging mass spectrometry.[16]
  48. Direct imaging of single cells and tissue at sub-cellular spatial resolution using transmission geometry MALDI MS.[16]
  49. Spatial resolution is usually reported as the length of one side of a single pixel.[17]
  50. In analog imagery (film), the dimension (or width) of the smallest object on the ground that can be distinguished in the imagery defines the spatial resolution.[17]
  51. As the spatial resolution increases, the size of the raster goes up by the increase in resolution squared![17]
  52. This makes spatial resolution critical to control as we need enough resolution to see what we are interested in on the ground but not so much that we cannot process the data effectively.[17]
  53. Thus, optical recording, as it has been used to date, has insufficient spatial resolution to accurately locate pinwheel centers.[18]
  54. One source of error is the unavoidable fact that any optical system has finite spatial resolution and thus introduces non-zero spatial blur.[18]
  55. The point-spread function (PSF), characterized by its full width at half maximum (FWHM), is a common measure of the spatial resolution of an optical system.[18]
  56. It is so important to clarify the details of spatial resolution and identify sources of spatial filtering because of the vectorial nature of cortical orientation maps.[18]
  57. Sugarcane, citrus and eucalyptus are broadleaf vegetation, showing different spatial distribution features in high spatial resolution images.[19]
  58. Spatial resolution is related to the resolving power to distinguish image details.[20]
  59. In remote sensing, it is common to specify the spatial resolution as the size each pixel represents in the real world by the terms ground resolution element and ground resolution distance.[20]
  60. This interactive tutorial explores variations in digital image spatial resolution, and how these values affect the final appearance of the image.[21]
  61. Adjacent to the Optical Image window is a Spatial Resolution window that displays the captured image at varying resolutions that are adjustable with the Pixel Dimensions slider.[21]
  62. To operate the tutorial, select an image from the Choose A Specimenpull-down menu, and vary the pixel dimensions (and spatial resolution) with the Pixel Dimensions slider.[21]
  63. The spatial resolution of a digital image is related to the spatial density of the image andoptical resolution of the microscope used to capture the image.[21]
  64. Spatial resolution states that the clarity of an image cannot be determined by the pixel resolution.[22]
  65. In short what spatial resolution refers to is that we cannot compare two different types of images to see that which one is clear or which one is not.[22]
  66. Now when you compare them, you will see that the picture on the left side has more spatial resolution or it is more clear then the picture on the right side.[22]
  67. The fundamental spatial resolution of a CT scanner is largely hardware dependent, and quantified in experiments with stationary phantoms with sharp contrast differences under ideal conditions.[23]
  68. In terms of hardware, the fundamental spatial resolution improves with a smaller focal spot.[23]
  69. The size and quality of the detectors directly affect the spatial resolution.[23]
  70. The type of reconstruction and the use of filtering kernels also affect the spatial resolution.[23]
  71. The spatial resolution is stated in metres.[24]
  72. You can clearly distinguish between a higher spatial resolution of 30 metres and a lower spatial resolution of 300 metres.[24]
  73. Due to the low spatial resolution, the colour components of both objects (brown and green) result in a brown-green mixed pixel, which is very hard to analyse.[24]
  74. The images all have the same number of pixels; but the spatial resolution of the different sensors cause different pixel sizes.[24]
  75. Spatial resolution refers to the number of active pixels on the sensor.[25]
  76. The smallest feature in combination with the required field of view, defines the smallest possible spatial resolution.[25]
  77. It will therefore be necessary to have 3 pixels per mm, multiplied by the object size, which equates to a spatial resolution of 300 x 300 pixels.[25]
  78. The detail discernible in an image is dependent on the spatial resolution of the sensor and refers to the size of the smallest possible feature that can be detected.[26]
  79. Spatial resolution of passive sensors (we will look at the special case of active microwave sensors later) depends primarily on their Instantaneous Field of View (IFOV).[26]
  80. This area on the ground is called the resolution cell and determines a sensor's maximum spatial resolution.[26]
  81. It is important to distinguish between pixel size and spatial resolution - they are not interchangeable.[26]
  82. Spatial resolution is a term that refers to the number of pixels utilized in construction of a digital image.[27]
  83. Images having higher spatial resolution are composed with a greater number of pixels than those of lower spatial resolution.[27]
  84. Adjacent to the Specimen Image window is a Spatial Resolution window that displays the captured image at varying resolutions, which are selectable with the Pixel Dimensions slider.[27]
  85. To operate the tutorial, select an image from the Choose A Specimen pull-down menu, and vary the pixel dimensions (and spatial resolution) with the Pixel Dimensions slider.[27]

소스

  1. ↑ Using very high spatial resolution multispectral satellite sensor imagery to monitor refugee camps
  2. ↑ Improving spatial resolution and reducing aspect ratio in multiphoton polymerization nanofabrication
  3. ↑ 3.0 3.1 3.2 3.3 Understanding Spatial Resolution
  4. ↑ 4.0 4.1 Satellite Data: What Spatial Resolution Is Enough For You?
  5. ↑ 5.0 5.1 5.2 5.3 Spatial Resolution in Raman Spectroscopy
  6. ↑ Spatial resolution and position accuracy (Chapter 4)
  7. ↑ 7.0 7.1 7.2 Understanding and Controlling Spatial Resolution, Sensitivity, and Surface Selectivity in Resonant-Mode Photothermal-Induced Resonance Spectroscopy
  8. ↑ 8.0 8.1 8.2 Spectral vs Spatial Resolution
  9. ↑ 9.0 9.1 9.2 9.3 Spatial resolution influence on the identification of land cover classes in the Amazon environment
  10. ↑ 10.0 10.1 10.2 10.3 Improving satellite spatial resolution
  11. ↑ Evolution of Image Spatial Resolution
  12. ↑ 12.0 12.1 12.2 12.3 Spatial Resolution and Imaging Encoding fMRI Settings for Optimal Cortical and Subcortical Motor Somatotopy in the Human Brain
  13. ↑ 13.0 13.1 13.2 13.3 Spatial resolution in dynamic optical coherence elastography
  14. ↑ 14.0 14.1 14.2 14.3 Enhancement of spatial resolution in digital holographic microscopy using the spatial correlation properties of speckle patterns
  15. ↑ 15.0 15.1 15.2 15.3 Improving Spatial Resolution at CT: Development, Benefits, and Pitfalls
  16. ↑ 16.0 16.1 16.2 16.3 National Research Resource for Imaging Mass Spectrometry
  17. ↑ 17.0 17.1 17.2 17.3 Resolution
  18. ↑ 18.0 18.1 18.2 18.3 Physical limits to spatial resolution of optical recording: Clarifying the spatial structure of cortical hypercolumns
  19. ↑ The Impact of Spatial Resolution on the Classification of Vegetation Types in Highly Fragmented Planting Areas Based on Unmanned Aerial Vehicle Hyperspectral Images
  20. ↑ 20.0 20.1 Spatial Resolution / Image Composing
  21. ↑ 21.0 21.1 21.2 21.3 Spatial Resolution in Digital Imaging
  22. ↑ 22.0 22.1 22.2 Spatial Resolution
  23. ↑ 23.0 23.1 23.2 23.3 Spatial Resolution - an overview
  24. ↑ 24.0 24.1 24.2 24.3 Spatial Resolution
  25. ↑ 25.0 25.1 25.2 Spatial resolution
  26. ↑ 26.0 26.1 26.2 26.3 Spatial Resolution, Pixel Size, and Scale
  27. ↑ 27.0 27.1 27.2 27.3 Molecular Expressions Microscopy Primer: Digital Image Processing

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