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This text is an analysis of a series of pinhole photographs, by Anne Peschken and Marek Pisarsky (Urban Art), entitled East Side Story I (Myślibórz). Photo research on migration and arrival stories, 2019 on-going. The main thesis is that these photographs are a model example of images which, while addressing the theme of migration in the representational layer, also activate the processual and migratory nature of visual forms themselves. In order to substantiate this thesis, the East Side Story project is examined in the following contexts: critical border (art) studies; H. Belting's anthropology of the image; memory studies; re-enactment; the blurriness of images made with a pinhole camera; A. Berleant's re-thinking aesthetics and the notion of aesthetic embodiment. Reflecting on the tension between history, memory, identity and politics and activating the critical potential of borderscaping, Peschken and Pisarsky transform the landscape of the Polish-German borderland into an anachronistic narrative agent. The photographs from the East Side Story series are thus transgenerational corpographies of memory, showing that migration is a key and inalienable element of Polish history. [ABSTRACT FROM AUTHOR]

This work, comprised of pinhole photographs paired with written text, represents a series of ontological experiments with participants on a rafting expedition, on the Franklin River, lutruwita (Tasmania). Through photographic experiences in this landscape these experiments interrogated ideas about ways to represent places and ideas. We began with informal riverside workshops on pinhole photography followed by making pictures and developing them during the river journey. The home-made pinhole camera used by participants in the making of these photographs had neither a lens nor a viewfinder, thus the making of photographs demanded a certain sensual presence. The written expression of this work is partly comprised of reflections on the experiences of participants, some of whom engaged directly in this making. Participants were asked to consider what drew their attention to particular photographic images, and what feelings, emotions, experiences, memories or thoughts these chosen images evoked. These reflections are conjoined with musings on wild, self-willed and educational opportunities therein. The way in which this work is deliberately presented is reminiscent of a lyric philosophy (Zwicky 1992, 2003) that seeks to engage the reader, in this case through visual and linguistic representations, with patterned resonance. [ABSTRACT FROM AUTHOR]

In the heart of the 21st century, we have been surprised witnesses of a coarse pinhole projection among different professionals. This fact shows that in spite of the thorough study made by specialists, the so called Camera Obscura is something that has been talked about but only a few have experimented. Without the help of a lens, the image projected by a camera is dim and not clear. Only in ideal luminous circumstances, a good hole quality and total darkness would it be possible to efficiently trace the outline of the projected image. Once this fact has been confirmed since very old times, it was only a matter of time that curiosity or a stroke of luck led to place a lens in the little opening. While all these was going on, innumerable authors devoted to study the whole process. But, nevertheless, the graphic or written evidence that have reached us, is certainly poor. [ABSTRACT FROM AUTHOR]

With their large field of view, anamorphosis, and areas of enhanced magnification, panomorph lenses are an interesting choice for navigation systems for mobile robotics in which knowledge of the surroundings is mandatory. However, panomorph lenses special characteristics can be challenging during the calibration process. This study focuses on the calibration of two panomorph stereoscopic systems with a model and technique developed for narrow-angle lenses, the “Camera Calibration Toolbox for MATLAB.” In order to assess the performance of the systems, the mean reprojection error (MRE) related to the calibration and the reconstruction error of control points of an object of interest at various locations in the field of view are used. The calibrations were successful and exhibit MREs of less than one pixel in all cases. However, some poorly reconstructed control points illustrate that an acceptable MRE guarantees neither the quality of 3-D reconstruction nor its uniformity in the field of view. In addition, the nonuniformity in the 3-D reconstruction quality indicates that panomorph lenses require a more accurate estimation of the principal point (center of distortion) coordinates to improve the calibration and therefore the 3-D reconstruction. [ABSTRACT FROM AUTHOR]

This paper is comprised of written text and photographs of wild experiences that relive a series of ontological experiments. The text represents reflections on these experiences. The photographs, artistic expressions of the same experiences, have been made with a homemade pinhole camera-without a lens and viewfinder-thus demanding special sensual presence during creation. The form of this experimental work is reminiscent of a lyric philosophy that seeks to engage the participant-reader of text and viewer of images-with these experiments. Component pairings are arranged for viewing with text on the left and photographs on the right. Together these parings invite participants to explore patterned resonances in the world. Implicit throughout are considerations of relationships between wildness, wild learning, and a form of wild pedagogy. [ABSTRACT FROM AUTHOR]

The ideal pinhole imaging model commonly assumed for an ordinary two-dimensional digital image correlation (2D-DIC) system is neither perfect nor stable because of the existence of small out-of-plane motion of the test sample surface that occurred after loading, small out-of-plane motion of the sensor target due to temperature variation of a camera and unavoidable geometric distortion of an imaging lens. In certain cases, these disadvantages can lead to significant errors in the measured displacements and strains. Although a high-quality bilateral telecentric lens has been strongly recommended to be used in the 2D-DIC system as an essential optical component to achieve high-accuracy measurement, it is not generally applicable due to its fixed field of view, limited depth of focus and high cost. To minimize the errors associated with the imperfectness and instability of a common 2D-DIC system using a low-cost imaging lens, a generalized compensation method using a non-deformable reference sample is proposed in this work. With the proposed method, the displacement of the reference sample rigidly attached behind the test sample is first measured using 2D-DIC, and then it is fitted using a parametric model. The fitted parametric model is then used to correct the displacements of the deformed sample to remove the influences of these unfavorable factors. The validity of the proposed compensation method is first verified using out-of-plane translation, out-of-plane rotation, in-plane translation tests and their combinations. Uniaxial tensile tests of an aluminum specimen were also performed to quantitatively examine the strain accuracy of the proposed compensation method. Experiments show that the proposed compensation method is an easy-to-implement yet effective technique for achieving high-accuracy deformation measurement using an ordinary 2D-DIC system. [ABSTRACT FROM AUTHOR]

An integral imaging (II) display is proposed which consists of a display panel and a gradient-aperture pinhole array. The gradient-aperture pinhole array is symmetrical in both horizontal and vertical directions. The leftmost and rightmost pinholes are used to fix the horizontal viewing angle, and the uppermost and nethermost pinholes are used to fix the vertical viewing angle. To increase the optical efficiency, the aperture widths of other pinholes are gradually increased from both sides to the middle in the horizontal and vertical directions, respectively. A prototype of the proposed II display is developed. Its horizontal viewing angle is equal to that of the conventional one, while its optical efficiency is higher than that of the conventional one. [ABSTRACT FROM AUTHOR]

We introduce the occlusion camera: a non-pinhole camera with 3D distorted rays. Some of the rays sample surfaces that are occluded in the reference view, while the rest sample visible surfaces. The extra samples alleviate disocclusion errors. The silhouette curves are pushed back, so nearly visible samples become visible. A single occlusion camera covers the entire silhouette of an object, whereas many depth images are required to achieve the same effect. Like regular depth images, occlusion-camera images have a single layer thus the number of samples they contain is bounded by the image resolution, and connectivity is defined implicitly. We construct and use occlusion-camera images in hardware. An occlusion-camera image docs not guarantee that all disocclusion errors are avoided. Objects with complex geometry are rendered using the union of the samples stored by a planar pinhole camera and an occlusion camera depth image. [ABSTRACT FROM AUTHOR]

An algorithm for image registration and mosaicing on underwater sonar image sequences characterised by a high noise level, inhomogeneous illumination and low frame rate is presented. Imaging geometry of acoustic cameras is significantly different from that of pinhole cameras. For a planar surface viewed through a pinhole camera undergoing translational and rotational motion, registration can be obtained via a projective transformation. For an acoustic camera, it is shown that, under the same conditions, an affine transformation is a good approximation. A novel image fusion method, which maximises the signal-to-noise ratio of the mosaic image is proposed. The full procedure includes illumination correction, feature based transformation estimation, and image fusion for mosaicing. [ABSTRACT FROM AUTHOR]

Pinhole camera photography is explored using a set of entomology pins due to their known pin diameters and availability in a variety of sizes. A procedure to prepare removable-lens digital cameras for pinhole photography is described. A video is included showing a set of ten insect pins and how to fit the camera with pinhole apertures. Formulas are given that estimate optimum sizes for pinholes based on camera sizes. Finally, a sample pinhole photo is included. [ABSTRACT FROM AUTHOR]

The article describes an experiment that helps students understand how the use of pinholes when taking pictures with a digital camera can show improvement one's vision. Information on the basic materials and construction of pinhole glasses is presented. Observations of photos taken with the pinhole glasses using manual settings of the camera are also discussed.

Experiments in the context of fast ignition were carried out by focusing a 6-TW laser beam into a preformed plasma. An electron population with a quasi-temperature of 2 MeV was generated. The 2ω self-emission image reveals a self-focused plasma channel formation, whereas X-ray pinhole photography shows a postheating of the preformed plasma. [ABSTRACT FROM AUTHOR]

Presents photographs that focus on the natural elements of an urban environment. Features of pinhole cameras; Tips on pinhole photography.

The article reports that photographer Justin Quinnell has released a book of photographs, taken from a pinhole camera in his mouth. Justin is a big promoter of pinhole photography. The collection of these unusual photographs includes through the mouth views of dentists, friends, animals, every day acts like eating and brushing and icons of world travel.