Panoramic Lens Research Articles

From Recognition to Remedy: The Significance of Biomarkers in Neurodegenerative Disease Pathology.

With the inexorable aging of the global populace, neurodegenerative diseases (NDs) like Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS) pose escalating challenges, which are underscored by their socioeconomic repercussions. A pivotal aspect in addressing these challenges lies in the elucidation and application of biomarkers for timely diagnosis, vigilant monitoring, and effective treatment modalities. This review delineates the quintessence of biomarkers in the realm of NDs, elucidating various classifications and their indispensable roles. Particularly, the quest for novel biomarkers in AD, transcending traditional markers in PD, and the frontier of biomarker research in ALS are scrutinized. Emergent susceptibility and trait markers herald a new era of personalized medicine, promising enhanced treatment initiation especially in cases of SOD1-ALS. The discourse extends to diagnostic and state markers, revolutionizing early detection and monitoring, alongside progression markers that unveil the trajectory of NDs, propelling forward the potential for tailored interventions. The synergy between burgeoning technologies and innovative techniques like -omics, histologic assessments, and imaging is spotlighted, underscoring their pivotal roles in biomarker discovery. Reflecting on the progress hitherto, the review underscores the exigent need for multidisciplinary collaborations to surmount the challenges ahead, accelerate biomarker discovery, and herald a new epoch of understanding and managing NDs. Through a panoramic lens, this article endeavors to provide a comprehensive insight into the burgeoning field of biomarkers in NDs, spotlighting the promise they hold in transforming the diagnostic landscape, enhancing disease management, and illuminating the pathway toward efficacious therapeutic interventions.

GEOMETRICAL CALIBRATION FOR THE PANROVER: A STEREO OMNIDIRECTIONAL SYSTEM FOR PLANETARY ROVER

Abstract. A novel panoramic stereo imaging system is proposed in this paper. The system is able to carry out a 360° stereoscopic vision, useful for rover autonomous-driving, and capture simultaneously a high-resolution stereo scene. The core of the concept is a novel "bifocal panoramic lens" (BPL) based on hyper hemispheric model (Pernechele et al. 2016). This BPL is able to record a panoramic field of view (FoV) and, simultaneously, an area (belonging to the panoramic FoV) with a given degree of magnification by using a unique image sensor. This strategy makes possible to avoid rotational mechanisms. Using two BPLs settled in a vertical baseline (system called PANROVER) allows the monitoring of the surrounding environment in stereoscopic (3D) mode and, simultaneously, capturing an high-resolution stereoscopic images to analyse scientific cases, making it a new paradigm in the planetary rovers framework.Differently from the majority of the Mars systems which are based on rotational mechanisms for the acquisition of the panoramic images (mosaicked on ground), the PANROVER does not contain any moving components and can rescue a hi-rate stereo images of the context panorama.Scope of this work is the geometric calibration of the panoramic acquisition system by the omnidirectional calibration methods (Scaramuzza et al. 2006) based on Zhang calibration grid. The procedures are applied in order to obtain well rectified synchronized stereo images to be available for 3D reconstruction. We applied a Zhang chess boards based approach even during STC/SIMBIO-SYS stereo camera calibration (Simioni et al. 2014, 2017). In this case the target of the calibration will be the stereo heads (the BPLs) of the PANROVER with the scope of extracting the intrinsic parameters of the optical systems. Differently by previous pipelines, using the same data bench the estimate of the extrinsic parameters is performed.

Methods of using the type expressiveness of the actor in the cinema of “new sincerity”

One of the characteristics of films related to the new sincerity trend is the priority use of the type expressiveness of the actor. The essay compares between the methods of using the type expressiveness of an actor in the artistic concepts of Lev Kuleshov and Sergei Eisenstein and in the films of new sincerity.
 Lev Kuleshov's concept of the model is characterized by emotionality produced by posing instead of experiencing emotions corresponding to a specific pose. In the films of new sincerity this emotionality is characteristic of the protagonists and is interpreted as their inability to experience and reflect. This complex mental state is typical of protagonists in the new sincerity films.
 Such characteristic features of Sergei Eisenstein's masks as their static character, negativity and actions and appearances conditioned by social status are interpreted by new sincerity filmmakers as protagonists' problems, their inability to be sincere with themselves and with others. Identification of protagonists with their social masks threatens them with death.
 On the visual level, the type expressiveness of actors is emphasized by long plans, using a panoramic lens when shooting close-ups of faces; symbolism in a costume. Often masks, dolls and mummers appear in the frame as signs indicating a human individuality dying under a social mask.
 The use of type expressiveness of the actor in the films of new sincerity is explored in the essay as an example of the artists' striving for the authenticity of screen reality, which results from the authenticity of the actors existence within the frame and the reflection of the heros unconscious sphere characteristic of type..

Achieving panorama using singular metamaterials

Panoramic lens (PL) can help us to achieve a wide-angle field of view. The design of PL was proposed conceptually, but until now it remains unrealized. Metamaterials are synthetic materials with some unusual electromagnetic properties which cannot be found in nature. Herein, a PL design based on singular metamaterials is proposed, which can confine the light of all directions into the visual angle of human eyes. An equivalent model with simplified parameters, as well as the real structure, is presented, and furthermore, the improvement in the field of view is proved with simulation results. Our method provides a practical way to achieve PL which may discover utility in applications such as panoramic images and virtual reality.

Religion Around Billie Holiday by Tracy Fessenden

Reviewed by: Religion Around Billie Holiday by Tracy Fessenden Brett Grainger Religion Around Billie Holiday. By Tracy Fessenden. University Park, PA: Penn State University Press, 2018. 280 pp. $34.95. Few jazz artists have attracted more mythology than Billie Holiday, the legendary singer whose technical ability, iconoclastic sound, and notorious personal life made her arguably the most popular vocalist of her day. In Religion Around Billie Holiday, Tracy Fessenden works to free Holiday from the romantic myth that argues that the height of her artistry was somehow dependent upon the depth of her misery (a string of abusive boyfriends, drug addiction, incarceration) or, better, to demonstrate how Holiday could be both a victim of a racist, misogynist culture, and also a resilient agent who cannily participated in her own mythmaking. [End Page 86] The book is the latest entry in Penn State Press's "Religion Around" series, which examines "the religious forces surrounding cultural icons," rather than offering straight-up biographical narratives. As Fessenden writes, her entry focuses "not on Holiday's religious practice or expression but on the environing religious conditions to which her genius responded, and in which her life and sound took form" (4). Fessenden's chapters trace in heightened detail the multiple religious currents in which Holiday was formed and reformed. The first chapter, "Religion Around," outlines the American civil religion of the early twentieth century, one that was "broadly Protestant in tenor and emancipatory tilt." Through a comparison of two biographies—Holiday's Lady Sings the Blues and Ethel Waters's His Eye Is on the Sparrow—Fessenden shows how Holiday spurned the self-congratulatory anthem of Cold War America, which sent jazz musicians abroad as ambassadors of freedom, while forcing the same black musicians to live under Jim Crow at home. Chapter two, "True Confessions," filters Lady Sings the Blues through two genres of spiritual autobiography known to Holiday: Catholic hagiography and the popular tabloid. The third chapter, "The Story of Jazz," highlights what Fessenden calls the "Spanish tinge," the Afro-Cuban melodies and tonal structures that migrated into the ports of New Orleans and Baltimore where they mingled with blues and other musical traditions. "Crossing Jordan" tracks Holiday's emergence from the intersection of African American and Jewish cultural experience: the "marriage between Delta blues and Tin Pan alley," which produced the American songbook tradition of George Gershwin, Irving Berlin, and Abel Meeropol's "Strange Fruit," which became Holiday's talisman. Resisting the longstanding habit of opposing Holiday's blues with the boyish grin of Louis Armstrong, Fessenden reveals the latter's persona to be a form of "Jewish stagecraft," a "production of joy" influenced by his own intimate experience of American Jewish life. The final chapter, "Our Lady," focuses on what Fessenden considers Holiday's most formative religious environment, "the urban, pre–Vatican II Catholicism that undertook to reform her." Holiday's early Catholic formation consisted of several stints at a Baltimore girls' school run by the Oblate Sisters of Providence, one of two African American orders of Catholic nuns in the United States, and eleven months in the House of the Good Shepherd for Colored Girls, a convent reformatory to which she was committed by a court at the age of nine and again two years later. As Fessenden argues, the House of the Good Shepherd was the place where Holiday "learned to arrange the jagged pieces of her life as matters of eternal consequence, where her wounded spirit was made the subject of confessional performance, and where, in [End Page 87] the course of this self-culture, she received dedicated practice and instruction in singing" (75). By imprinting the model of female Catholic sanctity at mid-century—especially the newly sainted Thérèse of Lisieux, who Holiday revered—Holiday built the persona of a suffering, sainted singer. Fessenden reveals a woman who worked to leverage the trap that she was in, without ever being able to escape it. A hungry, centrifugal curiosity animates Fessenden's writing. At times, her sense of "religion around" seems capacious enough to include nothing less than America itself. The danger of shooting with a panoramic lens is that, while seeking out broader sightlines, you...

360°高阶非球面反射式全景镜头设计

360°高阶非球面反射式全景镜头设计

The Epic of Juan Latino: Dilemmas of Race and Religion in Renaissance Spain by Elizabeth R. Wright

Reviewed by: The Epic of Juan Latino: Dilemmas of Race and Religion in Renaissance Spain by Elizabeth R. Wright Hilaire Kallendorf Wright, Elizabeth R. The Epic of Juan Latino: Dilemmas of Race and Religion in Renaissance Spain. Toronto: U of Toronto P, 2016. 265 + xiv pp. This riveting account of the first black writer from slavery's diaspora whose name we can identify is not merely the equivalent for early modern studies of what might fairly be called a biopic; instead, its scope is more ambitious and wide-ranging, as its subtitle indicates. The genius of this book lies in its author's ability to tie an admittedly ephemeral exercise in Neo-Latin epic (what an ungenerous observer might dismiss as little more than a pedagogical exercise written by a Renaissance schoolmaster) to the more pressing, indeed timeless, issues of race and religion. The two-pronged approach Wright takes to do this includes a panoramic lens through which to view not only the epic material treated—i.e. the Battle of Lepanto (1571)—but also Juan Latino's background, growing up as a former slave in the city of Granada during a period of racial and religious tension prior to the Second Alpujarras Revolt (1568-70). The urgent concerns of the poem only make sense within this broader historical context. This volume is the monographic study designed to accompany a translation and edition of the epic poem in question, Austrias Carmen (The Song of John of Austria), which Wright published along with Sarah Spence and Andrew Lemons in the I Tatti Renaissance Library in 2014 as part of a larger volume titled The Battle of Lepanto. It is refreshing to see a scholar who can "do both" in the sense of executing the painstaking labor of classical philology (no one ever accused Neo-Latin of being easy!) but then stepping back to ask the big questions about why it all matters. Given the paucity of evidence—many relevant documents might remain buried in Granada's archives, and the author expresses no small frustration at their relative inaccessibility to a North American researcher—a few pieces of this puzzle might seem like a stretch; for example, she is forced to use an unrelated sketch of a black man by Albrecht Dürer as the book's cover image because a portrait of the slave-turned-epic-poet Juan Latino purportedly owned by King Philip IV, which appears in a 1636 inventory of the Alcázar Palace, has been lost. But such lacunae seem to reflect the haphazard nature of this fledgling field. I applaud her ambition and gutsiness in deciding not to stay with "safe" research, even if not all the details cohere completely. [End Page 285] The book is divided logically into two parts, one devoted to Juan Latino and the other to his creation. Part One, "From Slave to Freedman in Granada," includes the two poignant chapters "Latin Lessons amid the Remnants of Al-Andalus" and "Civil War, Shattered Convivencia" (as Professor Wright explains at the outset in a note on terminology, she considers the Alpujarras Revolt to qualify as an allout civil war; this may not be an exaggeration, given that the Kingdom of Granada was at one time its own emirate). Part Two, "The Epic of Lepanto," contains three chapters ("A Black Poet and a Habsburg Phoenix," "Christians and Muslims on the Battle Lines," and "The Costs of Modern Warfare") followed by a conclusion titled "Song of the Black Swan." This last epithet is one the poet employs to describe himself in what would have been recognized as a nod to the Roman satirist Juvenal. Finally, an epilogue anchors the study firmly within the framework of the present day with the title "Juan Latino in the Harlem Renaissance." This last gesture is a reference to Puerto Rican book collector Arturo Schomburg (1874-1938), who journeyed to Spain in search of information about Juan Latino after hearing about him in a burlesque prefatory poem, which Miguel de Cervantes appended to the world's first modern novel, Don Quijote (1605, 1615). With this project, in a sense, Elizabeth Wright has finally been able to finish what Schomburg started. The...

Design of a compact two-channel panoramic optical system.

We propose a new panossramic optical system that provides an additional field of view (FOV) channel without expanding the physical size of a conventional panoramic annular lens (PAL). The two channels are contained within one PAL, their optical paths do not interfere with each other, and the two images are realized on a single image plane. A prototype panoramic lens was developed that provides a 360° × (38-80°) front FOV channel and a 360° × (102-140°) back FOV channel.

Compact polarization-based dual-view panoramic lens.

Panoramic annular lens (PAL) is a type of special optical system that can transform the cylindrical side view onto a planar annular image. We propose a compact polarization-based dual-view panoramic lens to solve the two major limitations of the conventional PAL structure: large front annular lens and lack of forward view. Dual-view imaging capability, which is highly needed for some applications, is achieved by using a polarization technique. The diameter ratio of the proposed front PAL lens and the sensor is reduced to less than 1.5, while it is larger than 2.5 for traditional PAL systems, expanding its applications in space-confined environments.

Panoramic lens designed with transformation optics

The panoramic lens is a special kind of lens, which is applied to observe full view. In this letter, we theoretically present a panoramic lens (PL) using transformation optics method. The lens is designed with inhomogeneous and anisotropic constitutive parameters, which has the ability to gather light from all directions and confine light within the visual angle of observer. Simulation results validate our theoretical design.

Real-time indoor assistive localization with mobile omnidirectional vision and cloud GPU acceleration

In this paper we propose a real-time assistive localization approach to help blind and visually impaired people in navigating an indoor environment. The system consists of a mobile vision front end with a portable panoramic lens mounted on a smart phone, and a remote image feature-based database of the scene on a GPU-enabled server. Compact and e ective omnidirectional image features are extracted and represented in the smart phone front end, and then transmitted to the server in the cloud. These features of a short video clip are used to search the database of the indoor environment via image-based indexing to find the location of the current view within the database, which is associated with floor plans of the environment. A median-filter-based multi-frame aggregation strategy is used for single path modeling, and a 2D multi-frame aggregation strategy based on the candidates’ distribution densities is used for multi-path environmental modeling to provide a final location estimation. To deal with the high computational cost in searching a large database for a realistic navigation application, data parallelism and task parallelism properties are identified in the database indexing process, and computation is accelerated by using multi-core CPUs and GPUs. User-friendly HCI particularly for the visually impaired is designed and implemented on an iPhone, which also supports system configurations and scene modeling for new environments. Experiments on a database of an eight-floor building are carried out to demonstrate the capacity of the proposed system, with real-time response (14 fps) and robust localization results.

“Maria Ivanovna Was Reclining on a Settee”: Gleb Uspenskii’s Search for a New Optics

To Gleb Uspenskii's contemporaries, his preference for short forms like sketches, notes, and fragments masked an artistic fl aw – his inability to produce a novel. The paper reconsiders Uspenskii's generic choices as a deliberate critique of the novel form. This critique refl ected Uspenskii's anxiety about the signifi cance of individual personality and experience overvalued by the novel. Uspenskii's aspiration to transcend the novel's preoccupation with an individual human fate in order to lay bare the conditions shaping the shared destiny of all led him to exchange the novel's “microscopic” optics for a broader, panoramic lens. Such change in perspective dictated several other elements of his poetics: from rejecting the novel's aesthetics of small detail to reconfi guring the traditional character structure.

Design of panoramic lens based on ogive and aspheric surface.

A new method improving the design of panoramic lens with a long focal length based on ogive and aspheric surface is proposed. In this design, we use a special conjugation between "annular entrance pupil" and aperture stop to correct the chromatic transverse aberrations. Moreover, we use a new imaging relationship to increase the Effective Focal Length (EFL) of the panoramic lens and the CCD utilization. We realize a panoramic lens with a 360° × (45°~85°)field of view (FOV) and a 10.375mm EFL, which is 1.54 times than the conventional imaging relationship.

A leitura: entre expectativa e memória

In this paper, covering a reflective journey signalled by the indications running through the work of some prominent Portuguese authors, analyses the diverse ways of how the act of reading a text develops, by dissolving the voice of the author/poet within the experience of the reader. From the picture on the cover, until the title and the epigraph(s), the text announces and anticipates itself to the reader, creating an expectation that it will be consummated only through its full reading. The aesthetic experience of the author, which is represented/recognized through the intertextual dialogue, in a progressive manifestation of its metamorphic memory, superimposes images which trigger an effect of hesitation and suspense on the reader. Thus, the fictional world, synecdoche and symbol of a real environment, becomes a common ground to the writer and the reader, tangling them in a game of perceptions and recognitions, where their memories and their ghosts, revealed through a panoramic lens, come to the surface, making them accomplices or promoting their separation.

Q-type非球面技术在超短焦全景镜头设计中的应用

The Q-type novel aspherical polynomials and its advantages are introduced in the aspect of algorithm,fabrication and manufacturing relative to the traditional aspherical polynomial-based aspheres.The Q-type formulation is applied to design a panoramic lens based on the relationship of super short-focus panoramic lens′ focus and resolution.The designed panoramic lens′ focus is 0.657 mm and ratio of focus and image height is less than 0.184,which includes 4 aspheric surface.This result shows that the spatial pixel of scenic circle area with half vertical field 45°～90° is up to 1.163 7 mm/(°),and the modulation transformation function is greater than 0.3 at the spatial frequency of 227 lp/mm.The result demonstrates the Q-type formulations is certain advantages in super short-focus panoramic lens.

Assessment 360°: A Panoramic Framework for Assessing English Language Learners

This issue describes the Assessment 360° process, which takes a panoramic approach to the language assessment process with school-age English Language Learners (ELLs). The Assessment 360° process guides clinicians to obtain information from many sources when gathering information about the child and his or her family. To illustrate the process, a bilingual fourth grade student whose native language (L1) is Spanish and who has been referred for a comprehensive language evaluation is presented. This case study features the assessment issues typically encountered by speech-language pathologists and introduces assessment through a panoramic lens. Recommendations specific to the case study are presented along with clinical implications for assessment practices with culturally and linguistically diverse student populations.

紧凑型红外全景镜头设计

紧凑型红外全景镜头设计

Design of a Mega-pixel Grade Catadioptric Panoramic Lens with the Rectilinear Projection Scheme

A dedicated catadioptric panoramic lens with the rectilinear projection scheme is designed. The resolution is high enough to provide separate VGA quality images for the respective four directions and the image distortion is less than 0.5%.

Folded catadioptric panoramic lens with an equidistance projection scheme

A new formula for a catadioptric panoramic lens with an equidistance projection scheme has been derived. The fabricated lens has a field of view that is wider than that of any previously reported panoramic lens, and the nonimaged region near the back of the camera has a constant volume with zero angular extension.

The Need for Strategic Planning, not a Technological Fix

We know from past experience that nutritional status can be improved by improving practices without the use of processed food. The question should be: Can food alone, in the absence of improved practices, improve nutritional status outside a rehabilitative, structured feeding situation? Projects discussed in this paper demonstrate that there can be biological impacts from improved practices. Helping families use their own resources better is an important first step, not a last step, in programme development. The lessons that have been learned over the years for improving young child feeding are as follows: science is not enough; knowledge is not enough; the focus should be on improving practices; mothers are not a homogeneous group; and the solution is seldom singular. Processed complementary food is really a small piece of a larger picture that needs to be thought about strategically on the basis of practices and the barriers to improving them. It is important to work with governments to help them formulate and think through the options that present themselves to improve the nutritional intake of young children. Rather than using a zoom lens, which often magnifies the food component, we need to use a panoramic lens to see other options when helping countries.