<s>
Local	B-Algorithm
energy-based	I-Algorithm
shape	I-Algorithm
histogram	I-Algorithm
(	O
LESH	B-Algorithm
)	O
is	O
a	O
proposed	O
image	B-General_Concept
descriptor	I-General_Concept
in	O
computer	B-Application
vision	I-Application
.	O
</s>
<s>
The	O
LESH	B-Algorithm
feature	B-General_Concept
descriptor	I-General_Concept
is	O
built	O
on	O
local	O
energy	O
model	O
of	O
feature	O
perception	O
,	O
see	O
e.g.	O
</s>
<s>
phase	B-Algorithm
congruency	I-Algorithm
for	O
more	O
details	O
.	O
</s>
<s>
It	O
encodes	O
the	O
underlying	O
shape	O
by	O
accumulating	O
local	O
energy	O
of	O
the	O
underlying	O
signal	O
along	O
several	O
filter	O
orientations	O
,	O
several	O
local	O
histograms	B-Algorithm
from	O
different	O
parts	O
of	O
the	O
image/patch	O
are	O
generated	O
and	O
concatenated	O
together	O
into	O
a	O
128-dimensional	O
compact	O
spatial	O
histogram	B-Algorithm
.	O
</s>
<s>
The	O
LESH	B-Algorithm
features	O
can	O
be	O
used	O
in	O
applications	O
like	O
shape-based	O
image	O
retrieval	O
,	O
medical	O
image	O
processing	O
,	O
object	O
detection	O
,	O
and	O
pose	B-General_Concept
estimation	I-General_Concept
.	O
</s>
