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pro vyhledávání: '"J.Y.A. Wang"'
Autor:
J.Y.A. Wang, Edward H. Adelson
Publikováno v:
IEEE Transactions on Image Processing. 3:625-638
We describe a system for representing moving images with sets of overlapping layers. Each layer contains an intensity map that defines the additive values of each pixel, along with an alpha map that serves as a mask indicating the transparency. The l
Autor:
Edward H. Adelson, J.Y.A. Wang
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 14:99-106
Ordinary cameras gather light across the area of their lens aperture, and the light striking a given subregion of the aperture is structured somewhat differently than the light striking an adjacent subregion. By analyzing this optical structure, one
Publikováno v:
IEEE Journal of Solid-State Circuits. 26:203-208
A high-frequency fully differential BiCMOS operational amplifier design for use in switched-capacitor circuits is presented. The operational amplifier is integrated in a 3.0-GHz, 2- mu m BiCMOS process with an active die area of 1.0 mm*1.2 mm. This B
Autor:
J.Y.A. Wang, Edward H. Adelson
Publikováno v:
CVPR
Standard approaches to motion analysis assume that the optic flow is smooth; such techniques have trouble dealing with occlusion boundaries. The image sequence can be decomposed into a set of overlapping layers, where each layer's motion is described
Publikováno v:
ICIP (2)
Human vision, machine vision, and image coding, all have to deal with the problem of finding representations that are useful and efficient. The best-known techniques are based on low-level processing, using signal processing concepts such as filters,
Autor:
J.Y.A. Wang, Edward H. Adelson
Publikováno v:
CVPR
A camera for extracting depth information from a scene is described. It incorporates a single main lens along with a lenticular array placed at the sensor plane. The resulting plenoptic camera provides information about how the scene would look when
Publikováno v:
ICIP (1)
Video compression and retrieval have been treated as separate problems in the past. We present an object-based video representation that facilitates both compression and retrieval. Typically in retrieval applications, a video sequence is subdivided i
Autor:
J.Y.A. Wang, Edward H. Adelson
Publikováno v:
Digital Video Compression on Personal Computers: Algorithms and Technologies.
Most image coding systems rely on signal processing concepts such as transforms, VQ, and motion compensation. In order to achieve significantly lower bit rates, it will be necessary to devise encoding schemes that involve mid-level and high-level com
Autor:
J.Y.A. Wang, Edward H. Adelson
Publikováno v:
Image and Video Processing II.
Image segmentation provides a powerful semantic description of video imagery essential in image understanding and efficient manipulation of image data. In particular, segmentation based on image motion defines regions undergoing similar motion allowi
Autor:
J.Y.A. Wang, Edward H. Adelson
Publikováno v:
ICASSP (5)
A sequence is decomposed into a set of overlapping 2-D regions, each region occupying a depth-ordered layer with specified transparency, intensity, and motion. The resulting representation is efficient and flexible. While synthesis is straightforward