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WO2002093908A3 - Method for capturing and displaying a variable-resolution digital panoramic image
Abstract
The invention relates to a method for capturing a digital panoramic image comprising a step whereby a panorama is projected onto an image sensor using a wide-angle lens. According to the invention, the wide-angle lens has an image point distribution function which is non-linear in relation to the field of view of the object points of the panorama, such that at least one area of the image obtained is expanded while at least one other area of said image is compressed. During the display of a panoramic image obtained in compliance with said method, a step is provided for involving the correction of the non-linearity of the initial image which is performed using a function which is reciprocal to the lens non-linear distribution function or using the non-linear distribution function. The invention is advantageous as the image is expanded and the definition in the most useful areas of said image is improved. The inventive method is particularly suitable for video surveillance, video teleconferencing and video conferencing and for digital panoramic photography.
... This lens was a first prototype of the modern fisheye lenses (Figure 1D) which was patented by Schultz (1932) and Merté (1935). Some 40 years later, the now famous afocal wide-angle door viewer was patented (Artonne, 2005). Fig. 1. ...
Panomorph lens development has led to new types of panoramic imager that can be customized to enhance any panoramic imager application. The design features full
In the late 1990s, the first mobile phones with embedded cameras became widely available, heralding the birth of instant mobile visual communication. Capturing and sharing images using one device became a reality. The first "selfie" was captured by a J-Phone (now SoftBank Mobile) in Japan. In November 2000, the J-SH04 took photos, like the one in Figure 1, at 0.11 MP. At the same time, the Samsung SCH-V2000 also featured a camera, but the J-SH04 enabled users to send photos electronically. The combination of a back-camera phone and the ability to send photos electronically ushered in the era of mobile visual communications.Since 2000, a variety of electronic products with miniaturized camera modules have appeared in the consumer market, such as wearables, mobile phones, web cameras, home cameras, tablets, sports cameras, drones, and many others. Availability has driven the growth of video communications and the demand for optical lens technology. Today, most mobile devices still offer a narrow field-of-view (FoV) experience for both the back- and front-facing camera, yet most designs are an incremental improvement to the original, late-1990s design. Higher resolution and better image quality are no longer the only differentiating factors for mobile visual communications; rather, because of the emergence of social media and multiple sharing platforms, the ability to create, share, and experience has become key for consumers. This article examines the future interconnectivity of user experiences through the use of camera phones, wearables, tablets, drones, and virtual reality (VR) head-mounted displays -all items that are increasingly common and used to create, share, and experience life moments. In addition, we examine the possibilities this interconnectivity offers to vendors and service providers and how they can enable the growth of a fully interconnected visual communications era.
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