Topic
Digital camera back
About: Digital camera back is a research topic. Over the lifetime, 570 publications have been published within this topic receiving 10356 citations.
Papers published on a yearly basis
1 / 2
Papers
3 Aug 2003
TL;DR: A survey of application domains, technical challenges and solutions for recognizing documents captured by digital cameras, and some sample applications under development and feasible ideas for future development is presented.
Abstract: The increasing availability of high performance, low priced, portable digital imaging devices has created a tremendous opportunity for supplementing traditional scanning for document image acquisition. Digital cameras attached to cellular phones, PDAs, or as standalone still or video devices are highly mobile and easy to use; they can capture images of any kind of document including very thick books, historical pages too fragile to touch, and text in scenes; and they are much more versatile than desktop scanners. Should robust solutions to the analysis of documents captured with such devices become available, there is clearly a demand from many domains. Traditional scanner-based document analysis techniques provide us with a good reference and starting point, but they cannot be used directly on camera-captured images. Camera captured images can suffer from low resolution, blur, and perspective distortion, as well as complex layout and interaction of the content and background. In this paper we present a survey of application domains, technical challenges and solutions for recognizing documents captured by digital cameras. We begin by describing typical imaging devices and the imaging process. We discuss document analysis from a single camera-captured image as well as multiple frames and highlight some sample applications under development and feasible ideas for future development.
307 citations
Patent•
20 Nov 1991
TL;DR: In this article, an electronic still camera comprising a lens, shutter, and exposure control system, a focus and range control circuit, a solid state imaging device incorporating a Charge Coupled Device (CCD) through which an image is focused, a digital control unit through which timing and control of an image for electronic processing is accomplished, an Analog-to-Digital (A/D) converter circuit to convert the analog picture signals into their digital equivalents, a pixel buffer for collecting a complete row of the image's digital equivalent, a frame buffer, and a selectively adjustable digital image
Abstract: An electronic still camera comprising a lens, shutter, and exposure control system, a focus and range control circuit, a solid state imaging device incorporating a Charge Coupled Device (CCD) through which an image is focused, a digital control unit through which timing and control of an image for electronic processing is accomplished, an Analog-to-Digital (A/D) converter circuit to convert the analog picture signals into their digital equivalents, a pixel buffer for collecting a complete row of an image's digital equivalent, a frame buffer for collecting all rows of an image's digital equivalent, and a selectively adjustable digital image compression and decompression algorithm that compresses the size of a digital image and selectively formats the compressed digital image to a compatible format for either the IBM Personal Computer and related architectures or the Apple Macintosh PC architecture as selected by the operator so that the digital image can be directly read into most word processing, desktop publishing, and data base software packages including means for executing the appropriate selected decompression algorithm; and a memory input/output interface that provides both temporary storage of the digital image and controls the transmission and interface with a standard Personal Computer (PC) memory storage device such as a digital diskette. The digital diskette is removably inserted into the housing of the camera prior to use in recording digital image data.
260 citations
Patent•
20 Nov 2001
TL;DR: In this article, a system consisting of means for transferring picture image data recorded by a variety of digital cameras to an image server installed in a DPE or the like and accessing means for enabling the picture image image data stored in the image server to be accessed is presented.
Abstract: Pictures recorded by a digital camera can be stored and utilized by a method convenient and appropriate for the situation. The system comprises variety of means for transferring picture image data recorded by a variety of digital cameras to an image server installed in a DPE or the like and a variety of accessing means for enabling the picture image data stored in the image server to be accessed.
203 citations
Patent•
18 Jul 2002TL;DR: In this article, a hand-held digital camera is used to access and store large volumes of digital image data utilizing a wireless communications link between a host computer and the camera, which can transfer data at a sufficiently high bandwidth to provide virtually real-time feedback to a computer operator.
Abstract: A method and system allow a hand-held digital camera to access and store large volumes of digital image data utilizing a wireless communications link between a host computer and the camera In an embodiment of the invention, imaging optics and a photosensor array capture image data that represents an image of a subject A transceiver integrated into the hand-held digital camera then transmits the image data to a host computer via a wireless communications link The host computer stores the image data, or a copy of the image data, and retransmits related image data or, alternatively, the same image data back to the hand-held digital camera via the wireless communications link Once the image data is received by the hand-held digital camera, an electronic image is formed by a display device that is integrated into the camera The host computer may process the digital image data into enhanced digital image, thereby enabling the camera to display an enhanced electronic image of a subject The communications link between the hand-held digital camera and the host computer can transfer data at a sufficiently high bandwidth to provide virtually real-time feedback to a computer operator
192 citations
Patent•
11 Mar 2004
TL;DR: The digital 3D/360° camera system as discussed by the authors is an omnidirectional stereoscopic device for capturing image data that may be used to create a 3D model for presenting 3D images, movies, or 3D animation.
Abstract: The digital 3D/360° camera system is an omnidirectional stereoscopic device for capturing image data that may be used to create a 3-dimensional model for presenting a 3D image, a 3D movie, or 3D animation. The device uses multiple digital cameras, arranged with overlapping fields of view, to capture image data covering an entire 360° scene. The data collected by one, or several, digital 3D/360° camera systems can be used to create a 3D model of a 360° scene by using triangulation of the image data within the overlapping fields of view.
187 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2018 | 2 |
| 2017 | 3 |
| 2016 | 10 |
| 2015 | 22 |
| 2014 | 15 |
| 2013 | 21 |