To peripheral vision, a pair of physically different images can look the same. Such pairs are metamers relative to each other, just as physically-different spectra light perceived same color. We propose real-time method compute such ventral for foveated rendering where, in particular near-eye displays, largest part framebuffer maps periphery. This improves quality over state-of-the-art foveation methods which blur Work Vision Science has established how stimuli if their statistics similar....

Real camera footage is subject to noise, motion blur (MB) and depth of field (DoF). In some applications these might be considered distortions removed, but in others it important model them because would ineffective, or interfere with an aesthetic choice, simply remove them. augmented reality where virtual content composed into a live video feed, we can MB DoF make the visually consistent video. Existing methods for this typically suffer two main limitations. First, they require calibration...

A correct analysis of hierarchical selection processes must specify 1) the objects that succeed differentially as units , and 2) properties provide causal bases for differential success. Here I illustrate how failing to recognize units/bases distinction creates a contradiction in Elliott Sober's recent account selection. revised criterion is developed applied examples at several biological levels. Criteria are discussed terms degree context-dependence directness property's effect on success...

Properly handling occlusion between real and virtual objects is an important property for any mixed reality (MR) system. Existing methods have typically required known geometry of the in scene, either specified manually, or reconstructed using a dense mapping algorithm. This limits situations which they can be applied. Modern RGBD cameras are cheap widely available, but depth information provide too noisy incomplete to use directly quality results.

Computer-Generated Holography (CGH) offers the potential for genuine, high-quality three-dimensional visuals. However, fulfilling this remains a practical challenge due to computational complexity and visual quality issues. We propose new CGH method that exploits gaze-contingency perceptual graphics accelerate development of holographic display systems. Firstly, our infers user's focal depth generates images only at their focus plane without using any moving parts. Second, displayed are...

We describe a high-accuracy inspection system designed to automatically detect cracks in "as-cast" steel slabs. Real-time slab requires instrumentation capable of withstanding high temperatures above the surface as well coping with dirty and dusty environment present mill. Crack detection is also challenging due presence oxidation scale on surface. A bespoke laser triangulation has been developed, providing images at 250 fps calibrated resolution 97 μm from 1m standoff distance. Cracks are...

Computer-Generated Holography (CGH) promises to deliver genuine, high-quality visuals at any depth. We argue that combining CGH and perceptually guided graphics can soon lead practical holographic display systems realistic images. propose a new method called metameric varifocal holograms. Our generates images only user's focus plane while displayed are statistically correct indistinguishable from actual targets across peripheral vision (metamers). Thus, user observing our holograms is set...

When rendering virtual objects in a mixed reality application, it is helpful to have access an environment map that captures the appearance of scene from perspective object. It straightforward render into such maps, but capturing and correctly real components much more challenging. This information often recovered physical light probes, as reflective spheres or fisheye cameras, placed at location object scene. For many application areas, however, probes would be intrusive impractical....

Abstract. Stereo vision and LIDAR continue to dominate standoff 3D measurement techniques in photogrammetry although the two are normally used competition. matching algorithms generate dense data, but perform poorly on low-texture image features. measurements accurate, imaging requires scanning produces sparse point clouds. Clearly complementary, recent attempts improve stereo performance surfaces using data fusion have focused use of time-of-flight cameras, with comparatively little work...

Abstract. Passive stereo imaging is capable of producing dense 3D data, but image matching algorithms generally perform poorly on images with large regions homogenous texture due to ambiguous match costs. Stereo systems can be augmented an additional light source that project some form unique onto surfaces in the scene. Methods include structured light, laser projection through diffractive optical elements, data projectors and speckle. Pattern using lasers has advantage a high signal noise...

The evolution of the internet is underway, where immersive virtual 3D environments (commonly known as metaverse or telelife) will replace flat 2D interfaces. Crucial ingredients in this transformation are next-generation displays and cameras representing genuinely visuals while meeting human visual system's perceptual requirements.

Abstract. Fluorescence analysis, being a non-invasive technique, has become one of the most powerful and widely used techniques for microbiologists chemists to study various types sample from photosynthetic microbes hydrocarbons. The work reported here focuses on experimental results fluorescent features microbial species (cyanobacteria) also five different crude oil samples. cyanobacteria samples were collected Baltic Sea at end July 2011 associated with cyanobacterial bloom events, spill...

<italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Image-warping</i> , a per-pixel deformation of one image into another, is an essential component in immersive visual experiences such as virtual reality or augmented reality. The primary issue with warping disocclusions, where occluded (and hence unknown) parts the input would be required to compose output image. We introduce new method, xmlns:xlink="http://www.w3.org/1999/xlink">Metameric...

Rendering accurate and convincing virtual content into mixed reality (MR) scenes requires detailed illumination information about the real environment. In existing MR systems, this is often captured using light probes [1, 8, 9, 17, 19--21], or by reconstructing environment as a preprocess [31, 38, 54]. We present method for capturing updating HDR radiance map of tracking camera motion in time self-contained system, without prior knowledge scene. The capable producing plausible results...

We introduce a novel motion estimation method, MaskFlow, that is capable of estimating accurate fields, even in very challenging cases with small objects, large displacements and drastic appearance changes. In addition to lower-level features, are used other Deep Neural Network (DNN)-based methods, MaskFlow draws from object-level features segmentations. These segmentations approximate the objects' translation field. propose effective way incorporating incomplete field into subsequent...

Ventral metamers, pairs of images which may differ substantially in the periphery, but are perceptually identical, offer exciting new possibilities foveated rendering and image compression, as well offering insights into human visual system. However, existing lit-erature has mainly focused on creating metamers static images. In this work, we develop a method for sequences metameric frames, specifically light fields, with enforced consistency along temporal, or angular, dimension. This...

To peripheral vision, a pair of physically different images can look the same. Such pairs are metamers relative to each other, just as physically-different spectra light perceived same color. We propose real-time method compute such ventral for foveated rendering where, in particular near-eye displays, largest part framebuffer maps periphery. This improves quality over state-of-the-art foveation methods which blur Work Vision Science has established how stimuli if their statistics similar....