Título
Design of an access system for a bidimensional sensors array
Autor
HECTOR CHRISTIAN BANDALA HERNANDEZ
Colaborador
ALEJANDRO DIAZ SANCHEZ (Asesor de tesis)
JOSE MIGUEL ROCHA PEREZ (Asesor de tesis)
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
In the last few years, the focus on the vision systems research has increased due
to multiple demands of performance, power consumption and integration area.
Hence, a need for the design and manufacturing of Intelligent Sensors systems
has arised. A particular type of Intelligent Sensors are Vision Chips, which
have demonstrated to be ecient facing image processing and real time pro-
cessing issues. Vision Chips are classied as intelligent sensors because their
main goals are photodetection and image processing, and both assignments
are performed in a single chip. Currently, the development of two-dimensional
arrays of sensors is mainly focused on biomedical, astronomical and military
applications.
Recently, vision chips based on CMOS image sensors are competing with the
Charged Coupled Devices (CCDs). Since CCD's fabrication process is com-
plex and expensive, the studies on CMOS Image Sensors have considerably
increased.
Therefore, both CCD and CMOS have their particular advantages, which
makes the convenience of the use of one over the other depending on the task
requirements. Consequently it is not possible to claim about a dominant tech-
nology over its counterpart.
Besides of the sensor type, it is of great importance having amplifying and l-
tering stages whose fulll required design constraints like power consumption,
area, supply voltage, speed, cost, impulsive noise, shot noise, Fixed Pattern
Noise (FPN), thermal noise and image quality.
In that fashion, a large number of Pixel and Readout topologies have been
developed. Similarly, several studies, analyses and comparatives about how
ltering certain types of noise on corrupted images have been also reported.
This work presents the design and implementation of a Vision Chip using pre-
processing in-pixel low-power techniques with digital controlled access to the
pixel array. Also, the settling of the basis to future work is established by
material properties and features to optimize photodetectors design.
Editor
Instituto Nacional de Astrofísica, Óptica y Electrónica
Fecha de publicación
diciembre de 2013
Tipo de publicación
Tesis de maestría
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Público en general
Sugerencia de citación
Bandala-Hernandez H.C.
Repositorio Orígen
Repositorio Institucional del INAOE
Descargas
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