Customer-design approach in development of LED array-based range-imaging sensors: applications case studies

1997 ◽  
Author(s):  
Janusz A. Marszalec
2011 ◽  
Author(s):  
Richard M. Conroy ◽  
Adrian A. Dorrington ◽  
Andrew D. Payne ◽  
Rainer Künnemeyer ◽  
Michael J. Cree

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4084
Author(s):  
Xin-Yu Zhao ◽  
Li-Jing Li ◽  
Lei Cao ◽  
Ming-Jie Sun

Digital cameras obtain color information of the scene using a chromatic filter, usually a Bayer filter, overlaid on a pixelated detector. However, the periodic arrangement of both the filter array and the detector array introduces frequency aliasing in sampling and color misregistration during demosaicking process which causes degradation of image quality. Inspired by the biological structure of the avian retinas, we developed a chromatic LED array which has a geometric arrangement of multi-hyperuniformity, which exhibits an irregularity on small-length scales but a quasi-uniformity on large scales, to suppress frequency aliasing and color misregistration in full color image retrieval. Experiments were performed with a single-pixel imaging system using the multi-hyperuniform chromatic LED array to provide structured illumination, and 208 fps frame rate was achieved at 32 × 32 pixel resolution. By comparing the experimental results with the images captured with a conventional digital camera, it has been demonstrated that the proposed imaging system forms images with less chromatic moiré patterns and color misregistration artifacts. The concept proposed verified here could provide insights for the design and the manufacturing of future bionic imaging sensors.


Author(s):  
D. J. Conrad ◽  
R. E. Sampson

2007 ◽  
Author(s):  
S. A. Kemme ◽  
R. R. Boye ◽  
D. W. Peters ◽  
R. O. Nellums

2019 ◽  
Vol 62 (2) ◽  
pp. 176-194 ◽  
Author(s):  
Pia Storvang ◽  
Anders Haug ◽  
Bang Nguyen

Increased competition requires retail stores to increasingly focus on improving their customers’ experiences. Along this line, this article explores how a co-design approach can help retail stores of outdoor products develop consumer communities as a part of their store concept. Such stores may be particularly interesting in relation to consumer communities, because of the consumers’ often passionate relationship to activities related to the products in focus. Two longitudinal case studies of outdoor product stores in Denmark are investigated. The two cases are investigated through interviews, store observations, network meetings, and co-design workshops. Several important findings are discovered: first, in relation to community forms, the article defined three archetypes: business–consumer (BC), consumer–consumer (CC), and a combination of the two (BCCC). Second, in relation to the premises for the creation of communities, the article defined three types: consumer motivation, consumer availability, and consumer homogeneity. Third, in relation to consumer community activities, the article argued that these could be understood as being defined by three elements: the business, the consumers, and the products. Finally, the article defined four overall types of community-initiated activities by distinguishing if they are consumer-initiated or business-initiated and if they have a recreational or goal-oriented purpose.


1988 ◽  
Vol 1 (2) ◽  
pp. 127-152 ◽  
Author(s):  
Paul J. Besl

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