Image Acquisition by Pixel-Based Random-Access Image Sensor for a Real-Time IBR System

Ryutaro OI  Takayuki HAMAMOTO  Kiyoharu AIZAWA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E85-C   No.3   pp.505-510
Publication Date: 2002/03/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Signals, Systems and Electronics Technology)
Category: Signal Processing
Keyword: 
image based rendering,  CMOS image sensor,  light-field rendering,  smart sensor,  camera array,  

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Summary: 
We have studied an image acquisition system for a real-time image- based rendering (IBR) system. In this area, most conventional systems sacrifice spatial or temporal resolution for a large number of input images. However, only a portion of the image data is needed for rendering, and the portion required is determined by the position of the imaginary viewpoint. In this paper, we propose an acquisition system for a real-time image-based rendering system that uses pixel-based random-access image sensors to eliminate the main bottleneck in conventional systems. We have developed a prototype CMOS image sensor, which has 128 128 pixels. We verified the prototype chip's selective readout function. We also verified the sample & hold feature.