אירועים
אירועים והרצאות בפקולטה למדעי המחשב ע"ש הנרי ומרילין טאוב
יאיר ריבנזון (אונ' בן-גוריון)
יום רביעי, 04.11.2009, 13:30
חדר 1061, בניין מאייר, הפקולטה להנדסת חשמל
Compressive sensing is a relatively new theory that is based on
the fact that many natural signals (or images) can be sparsely
represented in some basis. The theory of compressive imaging is
applied to directly capture a compressed version of an object's
image. Here, we give an overview of different CI techniques, and
focus on two that were developed in our group. While implementing
conventional CS for imaging we have encountered some practical
implementation issues, which were caused due to the high
dimensionality of the images. These issues were addressed by
developing a novel two dimensional (2-D) separable sensor. The
solution enables the sensing and reconstruction of images having a
megapixel size, in contrast to kilopixel size images, which are
the current standard in compressive imaging. A reduction of the
complexity by 10^6 for megapixel size images is demonstrated both
theoretically and empirically.
* A Ph.D. student under the supervision of Dr. Adrian Stern and Prof. Joseph
Rosen (BGU).