Topic
Digital camera
About: Digital camera is a research topic. Over the lifetime, 12169 publications have been published within this topic receiving 137431 citations. The topic is also known as: digicam & digital still camera.
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Papers
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TL;DR: The new method for obtaining digital Fourier holograms, designated as integral holography, is proved for the general case and demonstrated experimentally for a simple case.
Abstract: A new method for obtaining digital Fourier holograms, under spatially incoherent white-light illumination and in a single camera shot, is presented. Multiple projections of the 3-D scene are created in the image plane of a microlens array, and a digital camera acquires the entire projections in a single shot. Then, each projection is computer processed to yield a single point in a Fourier hologram. The new method, designated as integral holography, is proved for the general case and demonstrated experimentally for a simple case.
62 citations
TL;DR: A new and very effective method for high-precision geometric calibration of digital cameras by extracting features with subpixel accuracy from various views of a planar calibration plate and mapping these feature sets into the corresponding points of the undistorted and rectified image that would be generated by an ideal pinhole digital camera.
62 citations
04 Jun 2006
TL;DR: In this paper, a light field camera is sampled with integral photography techniques, using a microlens array in front of the sensor inside a conventional digital camera, and the authors explore computation of photographs with reduced lens aberrations by re-sorting aberrated rays to where they should have terminated.
Abstract: Digital light field photography consists of recording the radiance along all rays (the 4D light field) flowing into the image plane inside the camera, and using the computer to control the final convergence of rays in final images. The light field is sampled with integral photography techniques, using a microlens array in front of the sensor inside a conventional digital camera. Previous work has shown that this approach enables refocusing of photographs after the fact. This paper explores computation of photographs with reduced lens aberrations by digitally re-sorting aberrated rays to where they should have terminated. The paper presents a test with a prototype light field camera, and simulated results across a set of 35mm format lenses.
62 citations
Patent•
27 Dec 2001
TL;DR: In this article, the position of any dust on the reference subject represented by the reference-subject image data is detected by a dust position detector, which is stored in a memory that stores dust address data and when the user images a subject, image data obtained by such imaging is input to a dust correction circuit.
Abstract: An all-white reference subject is imaged by a CCD and image data representing the reference subject is obtained. The position of any dust on the reference subject represented by the reference-subject image data is detected by a dust position detector. Address data representing the position of the dust is stored in a memory that stores dust address data. When the user images a subject, image data obtained by such imaging is input to a dust correction circuit. The dust address data is read from the memory and the image at the position represented by this dust address data is eliminated from the image of the subject by reason of the fact that the image at this position is that of dust.
62 citations
Patent•
11 Oct 2000TL;DR: In this paper, a method for simultaneously recording motion and still images was proposed, which includes the steps of: capturing a motion image sequence and accompanying audio of a scene with a digital video camera adapted to record both motion and higher resolution still images.
Abstract: A method for simultaneously recording motion and still images, includes the steps of: capturing a motion image sequence and accompanying audio of a scene with a digital video camera adapted to record both motion and higher resolution still images; simultaneously capturing a still image sequence having a higher resolution and lower frame rate than the motion capture sequence; compressing the motion image sequence using interframe compression and the accompanying audio and storing the compressed motion image and audio data; and compressing the still images using intraframe coding and storing the compressed still image data.
62 citations