sift 音标拼音: [s'ɪft]
vt . 筛,过滤,撒,详查
vi . 筛,被筛下,精选
筛,过滤,撒,详查筛,被筛下,精选
sift v 1 :
move as if through a sieve ; "
The soldiers sifted through the woods "
2 :
separate by passing through a sieve or other straining device to separate out coarser elements ; "
sift the flour " [
synonym :
{
sift }, {
sieve }, {
strain }]
3 :
check and sort carefully ; "
sift the information " [
synonym :
{
sieve }, {
sift }]
4 :
distinguish and separate out ; "
sift through the job candidates " [
synonym : {
sieve }, {
sift }]
Sift \
Sift \,
v .
t . [
imp . &
p .
p . {
Sifted };
p .
pr . &
vb .
n .
{
Sifting }.] [
AS .
siftan ,
from sife sieve . [
root ]
151a .
See {
Sieve }.]
1 .
To separate with a sieve ,
as the fine part of a substance from the coarse ;
as ,
to sift meal or flour ;
to sift powder ;
to sift sand or lime .
[
1913 Webster ]
2 .
To separate or part as if with a sieve .
[
1913 Webster ]
When yellow sands are sifted from below ,
The glittering billows give a golden show . --
Dryden .
[
1913 Webster ]
3 .
To examine critically or minutely ;
to scrutinize .
[
1913 Webster ]
Sifting the very utmost sentence and syllable .
--
Hooker .
[
1913 Webster ]
Opportunity I here have had To try thee ,
sift thee . --
Milton .
[
1913 Webster ]
Let him but narrowly sift his ideas . --
I .
Taylor .
[
1913 Webster ]
{
To sift out },
to search out with care ,
as if by sifting .
[
1913 Webster ]
150 Moby Thesaurus words for "
sift ":
air ,
analyze ,
appraise ,
assess ,
assort ,
bolt ,
canvass ,
catalog ,
categorize ,
choose ,
choose out ,
clarify ,
class ,
classify ,
clear ,
collate ,
comb ,
comment upon ,
consider ,
contradistinguish ,
controvert ,
cordon ,
cordon off ,
cull ,
cull out ,
deal with ,
debate ,
decide between ,
decrassify ,
deliberate ,
deliberate upon ,
delve into ,
demarcate ,
demark ,
depurate ,
differentiate ,
dig into ,
discourse about ,
discriminate ,
discuss ,
distill ,
distinguish ,
divide ,
draw the line ,
edulcorate ,
elute ,
essentialize ,
evaluate ,
examine ,
excerpt ,
exchange views ,
explore ,
extract ,
factor ,
fathom ,
filter ,
filtrate ,
gauge ,
ghettoize ,
gin ,
glean ,
go into ,
gradate ,
grade ,
group ,
handle ,
handpick ,
identify ,
indagate ,
inquire into ,
insulate ,
investigate ,
isolate ,
keep apart ,
keep aside ,
knock around ,
lay aside ,
leach ,
lixiviate ,
look into ,
make a selection ,
mark the interface ,
pass under review ,
peer into ,
percolate ,
pick ,
pick out ,
plumb ,
poke into ,
probe ,
prospect ,
pry into ,
purify ,
put aside ,
quarantine ,
rank ,
rap ,
reason ,
reason about ,
reason the point ,
rectify ,
refine ,
review ,
riddle ,
screen ,
screen out ,
scrutinize ,
search into ,
seclude ,
segregate ,
select ,
separate ,
set a limit ,
set apart ,
set aside ,
set off ,
sever ,
severalize ,
sieve ,
sieve out ,
sift out ,
single out ,
size ,
sort ,
sort out ,
sound ,
spiritualize ,
split hairs ,
strain ,
study ,
subdivide ,
sublimate ,
sublime ,
subordinate ,
subtilize ,
take up ,
talk ,
talk about ,
talk of ,
talk over ,
thrash ,
thrash out ,
thresh ,
thresh out ,
treat ,
try ,
ventilate ,
weed out ,
weigh ,
winnow
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万字长文详解SIFT特征提取 - 知乎 本文对 SIFT 算法进行了详细梳理。 SIFT即 尺度不变特征变换 (Scale-Invariant Feature Transform),是一种用于检测和描述图像局部特征的算法。 该算法对图像的尺度和旋转具有不变性,并且在一定程度上能够抵御亮度变化和视角变化,具备较强的鲁棒性。
SIFT 全面解析:原理、实现与应用-CSDN博客 以下从优点和缺点两个方面对 SIFT 进行全面分析。 4 1 SIFT 的优点 1 尺度与旋转不变性 尺度不变性:通过构建高斯尺度空间和检测极值点,SIFT 实现了对不同尺度图像的特征点提取。 例如,无论物体在图像中放大还是缩小,SIFT 都能检测到相同的关键点。
图像特征算法(一)——SIFT算法简述及Python标记SIFT特征检测实践 SIFT算法,Scale-invariant feature transform,中文含义就是 尺度不变特征变换。 该算法自1999年由David Lowe提出(Object recognition from local scale-invariant features)以后被广泛的应用于图像识别,图像检索,3D重建等CV的各种领域。
Digital Fraud Prevention Risk-Based Authentication | Sift Powered by a global data network of ~1T annual events representing 700+ global brands, Sift instantly exposes threats like account takeover, payment fraud, and first-party abuse to deliver precise, split-second decisioning accuracy at scale
SIFT算法原理:SIFT算法详细介绍-腾讯云开发者社区-腾讯云 SIFT算法由David Lowe提出,具备尺度、旋转不变性,通过高斯差分金字塔检测关键点,确定方向并生成描述符,广泛应用于物体识别、3D建模等领域,虽存在实时性不足等缺陷,但仍是特征提取的重要方法。
Sift算子特征点提取、描述及匹配全流程解析-CSDN博客 1999年,大不列颠哥伦比亚大学的David G Lowe教授在现有基于不变量技术的特征检测方法基础上,提出了一种基于尺度空间的,对图像缩放、旋转、甚至仿射变换保持不变性的图像局部特征描述算子——Sift(尺度不变特征变换),全称是Scale Invariant Feature Transform
SIFT 特征 - SLAM 之旅 - GitHub Pages SIFT 特征凭借其良好的性能广泛应用于运动跟踪 (Motion tracking) 、图像拼接 (Automatic mosaicing) 、3D 重建 (3D reconstruction) 、移动机器人导航 (Mobile robot navigation) 以及目标识别 (Object Recognition) 等领域。
Scale-invariant feature transform - Wikipedia SIFT and SIFT-like GLOH features exhibit the highest matching accuracies (recall rates) for an affine transformation of 50 degrees After this transformation limit, results start to become unreliable
GitHub - bbbbbjw pythonSIFT: SIFT的代码实现 以及kmeans visual words 尺度不变特征转换 (Scale-invariant feature transform或SIFT)是把图像的特征以关键点的位置,方向以及特征向量表示。 SIFT特征是图像的局部特征,其对旋转、尺度缩放、亮度变化保持不变性,对视角变化、仿射变换、噪声也保持一定程度的稳定性,sift特征具有高速性