G**Y
发帖数: 33224 | 1 D800E - 'cancellation' of anti-aliasing filter
Nikon uses slightly curious wording about the D800E - that the anti-aliasing
effect of the optical filter stack in front of the sensor is 'cancelled' -
and the diagram below shows what this means (courtesy of Nikon). Anti-
aliasing filters work by using a birefringent material to split light rays
into two based upon the polarization of the light; a first layer splits it
horizontally, the second vertically. The practical result is a slight
blurring o... 阅读全帖 |
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R***a
发帖数: 41892 | 3 这是为了justify为啥去掉个成本很高的东西价钱加了10%。
实际上把那两块低通换成两篇玻璃也一样
aliasing
- |
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s********k
发帖数: 6180 | 4 GCC里面的关于pointer dereference的strict aliasing被linus骂的狗血淋头，后来怎
么样了？(LLVM里面应该没有这个限制) |
|
t****t
发帖数: 6806 | 5 因为linus骂, 所以这是一个bad design?
besides, gcc可以通过-fno-strict-aliasing关掉这个优化, 不知道有什么好骂的. |
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z********0
发帖数: 9013 | 6 LLVM has TBAA and -O3 enables -fstrict-aliasing |
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w**7
发帖数: 5258 | 7 • 24 effective mega-pixels in an APS-C sized CMOS sensor
Designed for the demanding photographer, the K-3 features 24 effective
megapixels in an APS-C sized CMOS sensor for outstanding high resolution
imagery. By coupling this sensor with a newly developed PRIME III imaging
engine with high-efficiency noise and image processing capacities and an
anti-aliasing filter-less design, the K-3 delivers high-resolution, fine-
gradation images.
• Selectable Anti-Aliasing Filter
Enjoy the w... 阅读全帖 |
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v**********m
发帖数: 5516 | 9 I am wondering if someone has posted it in the pennystock club. I do think pumpers use similar strategies to "pumping a stock". When you are browsing a
stock forum other than this pennystock club, please pay close attentions to these rules.
I saw quite a few posts in the "stock" forum by someone called "guanxi chen". Those posts certainly belong to the category of "pumping a stock".
The most important thing is to do your own homework. Reading SEC fillings is the very first
thing need to be done ... 阅读全帖 |
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l*h
发帖数: 4124 | 10 Murder suspect arrested in Georgetown deported 3 times
Alicia-Inns
By Andy Jechow and Alicia Inns
Published: September 27, 2016, 6:04 pm Updated: September 28, 2016, 7:24 pm
Click to share on Twitter (Opens in new window) Click to share on Google+ (
Opens in new window) Share on Facebook (Opens in new window) 2Click to share
on Pinterest (Opens in new window)2
Related Coverage
Murder suspect who kidnapped Georgetown man still on the run
Georgetown kidnapping suspect tied to deadly crime spree i... 阅读全帖 |
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i*******8
发帖数: 7955 | 11 算法最简单但是也最brute force的反锯齿就是渲染高于显示解析度的图然后down
sample到显示解析度。
Multisample anti-aliasing
The term generally refers to a special case of supersampling. Initial
implementations of full-scene anti-aliasing (FSAA) worked conceptually by
simply rendering a scene at a higher resolution, and then downsampling to a
lower-resolution output. Most modern GPUs are capable of this form of
antialiasing, but it greatly taxes resources such as texture bandwidth and
fillrate. (If a game is highly TCL-bound or CPU-bou... 阅读全帖 |
|
n****t
发帖数: 170 | 12 这么理解吧，采样后在频域上是，原来的频谱移动整数倍Fs叠加，对我们考虑的这种情
况，有ALIASING的部分就是频率为正负Fs/2的信号成份，如果这部分信号的能量为零，
这个ALIASING没有任何影响，我们还是可以还原信号；如果能量不为零，这个ALIASING
的影响就不可以忽略为零，原信号也就不可以重构。 |
|
g****t
发帖数: 31659 | 13 这个解释牛.
对常规函数,某点的能量都是零,所以=1/2f的情况,sinc插值法重建信号是没
问题的.
但是exp(it)之类的函数,频域1/2f处点积分是有值的.
所以有问题.=1/2f的时候重构不了.
大牛能不能推荐一个广义函数采样定理之类文章?
俺想看看数学家怎么看这个问题的.
这么理解吧，采样后在频域上是，原来的频谱移动整数倍Fs叠加，对我们考虑的这种情
况，有ALIASING的部分就是频率为正负Fs/2的信号成份，如果这部分信号的能量为零，
这个ALIASING没有任何影响，我们还是可以还原信号；如果能量不为零，这个ALIASING
的影响就不可以忽略为零，原信号也就不可以重构。 |
|
l**t
发帖数: 10440 | 14 All sent, Please check your email!
***Full for this round,thanks for your interest***
Baozi is welcome if you think it is good
Bricks/Tomatoes/Eggs are also welcome if you thinks it is not good
enough :-)
--------------------------------------
方便Amazon扫货用,前20免费试用,请附上email
***Feature List***
1)Strong encryption: NO personal account password can be leaked when
your PC is misused/hacked/stolen.
2)Robust database: All Account/Product/Order information is stored in
robust databases which can survive ... 阅读全帖 |
|
a**e
发帖数: 5794 | 15 果然如此，多谢！
之前被premier edition的说明给骗了。
Google Apps Premier Edition is $50 USD per user account per year.
One user account is considered to be one email inbox. It is not $50 per doma
in. For example, two email inboxes (u***[email protected], u***[email protected]) wo
uld cost 2 x $50 = $100 per year. User aliases and domain aliases are not ch
arged as additional user accounts. |
|
发帖数: 1 | 16
2017
https://www.rockpapershotgun.com/2018/01/04/intel-amd-cpu-meltdown/
"Little more complex. Technically both Intel and AMD are vulnerable. However
, Intel is more exploitable at this time. In essence Intel creates aliases
for it’s branch target buffer in a predictable way, where as AMD doesn’t
create any aliases at all. As suc you’d first need an exploit which could
discover those addresses on AMD before you could then continue with the
Spectre-2 attack."
我觉得按摩店说"near zero"是以上原因，因为架构不同，按摩店没有... 阅读全帖 |
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f*********e
发帖数: 390 | 17 Name Current Age Location Possible Relatives Full Report
Zugang G. Mao
Aliases:
Zu G Mao 47 Buffalo Grove, IL
Skokie, IL
Evanston, IL
Lexington, KY Qing Xiao
Qing Xiao
Aliases:
Qing Xiao Mao
Zugang Mao
Xiao Qing 47 Buffalo Grove, IL
Skokie, IL
Lexington, KY Zugang Mao |
|
p*********3
发帖数: 2039 | 18 http://en.wikipedia.org/wiki/Nurse_with_Wound_list
Agitation Free, German rock group.
Pekka Airaksinen, Finnish musician and member of the group Sperm (see below).
Airway, project of Joe Potts as part of the Los Angeles Free Music Society
collective.
Albrecht/d. German artist with ties to the Fluxus scene. He has worked with
Joseph Beuys and Throbbing Gristle (see below).
Alcatraz, German rock group.
Älgarnas Trädgård, Swedish rock group.
All 7-70, see Ritual All 770 (below)
Alter... 阅读全帖 |
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c*******n
发帖数: 3 | 19 这帮人太牛了，换了块anti-aliasing filter，结果image quality无限提高，基本是
beat d200 to death。大家看下面这个link吧，我摘抄了些
http://maxmax.com/nikon_d200hr.htm
We have done a number of tests comparing a stock Nikon D200 with our Nikon
D200HR. The Nikon D200HR has a custom piece of an IR Cut Filter (ICF) that
replaces the stock cameras Anti-Aliasing (AA) and ICF assembly. On a stock
camera, the ICF and AA are cemented together; therefore, when the AA is
removed the stock ICF must also be removed.
As mentioned on other pages, |
|
k****t
发帖数: 12697 | 20 图8 中BOARD 拿掉后就见到CMOS SENSOR CHIP的背面. SENSOR 和HOT MIRROR 是一起下来的. 有5个罗丝, 三个长的,在厚的金属板上, 两个短的在薄的金属片上. 下掉这五个, SENSOR ASSEMBLY 就拿下了. 要小心,拿下时机身位置是机背朝上,因为三个长罗丝下都有两三个SHIM (图9里那黄铜的有两洞,一耳朵的东西), 这是调整SENSOR 位置的, 掉下来后搞不清哪个该哪里就麻烦了.
9. SENSOR 取下就见到快门.
10. 11. 重复了. 都是SENSOR正面, 前面就是HOT MIRROR.
12. 所有罗丝,零件都有NOTE 并进袋.
13. 把图11中上,下边的两罗丝拧下, 拿掉薄金属框. 图13中左右边的两罗丝拧下, 但HOT MIRROR连着它的FRAME 还用两面有胶的框粘在SENSOR的FRAME, 用图21里的平头刀,兜一圈翘开,HOT MIRROR就从SENSOR上分离开. 准备好ZIPPER BAG, HOT MIRROR 一下来, SENSOR 马上进袋以免沾灰. 双面胶框也进袋(图14右边那框),沾灰后没粘性... 阅读全帖 |
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v****n
发帖数: 7841 | 21 In-camera disabling of the aliasing and moiré pattern reduction operation
performed by the optical low-pass filter built into the D800E allows light
passing through a NIKKOR lens to strike photodiodes directly for even
greater resolution. This makes this model optimal for landscape and artistic
photography with which higher resolution and clear definition is demanded.
With the exception of the modification indicated above, all other functions
and characteristics are the same as with the D800.
>A... 阅读全帖 |
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a********6
发帖数: 1077 | 22 Philip Bloom是一位资深的导演，以前有过长期使用5D2的经验。他试用了5D3后的感受
为：
1 footage（原始文件）非常软，第一印象很不好。但是后期经地起锐化（5D2就经不起
锐化）。锐化后细节非常多，而且几乎没有什么负作用。
2 几乎消除了moire和aliasing。他以前对5D2最大的不满就是moire和aliasing相当严
重。
3 弱光高感条件下，对于躁点提升巨大。5D2 ISO1600下躁点就很多了，5D3 ISO1600下
非常干净。
4 录音效果比5D2提升巨大。
他总的评价是认为5D3在摄像品质上提升非常大。总体评价非常正面。
联想到前几天无忌上有人发文批评5D3的摄像品质，我就说普通爱好者准确评价摄像功
能是很难的。专业人士的评价还是准确很多。
注：相关视频链接在下面。http://vimeo.com/39292404 |
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a********6
发帖数: 1077 | 23 改进非常大！看一下一位导演的评价。其实对摄像不熟悉的人很难准确测评摄像品质。
评测摄像品质还真地要专业人士。
Philip Bloom是一位资深的导演，以前有过长期使用5D2的经验。他试用了5D3后的感受
为：
1 footage（原始文件）非常软，第一印象很不好。但是后期经地起锐化（5D2就经不起
锐化）。锐化后细节非常多，而且几乎没有什么负作用。
2 几乎消除了moire和aliasing。他以前对5D2最大的不满就是moire和aliasing相当严
重。
3 弱光高感条件下，对于躁点提升巨大。5D2 ISO1600下躁点就很多了，5D3 ISO1600下
非常干净。
4 录音效果比5D2提升巨大。
他总的评价是认为5D3在摄像品质上提升非常大。总体评价非常正面。
联想到前几天无忌上有人发文批评5D3的摄像品质，我就说普通爱好者准确评价摄像功
能是很难的。专业人士的评价还是准确很多。
注：相关视频链接在下面。http://vimeo.com/39292404 |
|
T****i
发帖数: 15191 | 24 拍风景需要DR宽，佳能连奥吧新机都比不上，跟nikon 新机比那是地下天上，没得可比
性。论像素，论没有Anti-aliasing filter，D800E拍风景再好不过了。
打鸟，对焦要快要准，这是老泥的强项，佳能的弱项。
拍人像，DR 不重要。Anti-aliasing filter越厚越好，这样才不至于把皮肤上的小问
题放大。所以佳能拍人像有利于美化被拍对象。
喜欢免费打印机，或者喜欢倒买倒卖，那只有佳能了，再无第二家。 |
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y*b
发帖数: 3190 | 25 http://www.sonyalpharumors.com/dan-chung-previews-the-a7rii-and
"Video expert Dan Chung from Newsshooter had the chance to test the
preproduction Sony A7rII and writes:
1) The S35 4K image really is free of any obvious errors – fine detail was
incredibly well resolved and there was virtually no evidence of aliasing and
moire at base ISO. When I looked at the image on a monitor it was very
clean. It had excellent detail and in S-Log2 there was certainly a lot of
information in the shadows and hig... 阅读全帖 |
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d******i
发帖数: 7160 | 26 多谢指点。
俺在pogoplug的debian下按照 https://github.com/joyent/node/wiki/Installing-
Node.js-via-package-manager 的debian编译指示去做，
结果最后一步出错了：
root@debian:~/nodejs/node-v0.10.1# make install
make -C out BUILDTYPE=Release V=1
make[1]: Entering directory `/root/nodejs/node-v0.10.1/out'
g++ '-DENABLE_DEBUGGER_SUPPORT' '-DENABLE_EXTRA_CHECKS' '-DV8_TARGET_ARCH_
ARM' '-DUSE_EABI_HARDFLOAT=0' -I../deps/v8/src -Wall -Wextra -Wno-unused-
parameter -pthread -fno-strict-aliasing -O2 -fno-strict-aliasing -fno-tree-
v... 阅读全帖 |
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d******i
发帖数: 7160 | 27 下面这段是从 https://github.com/joyent/node/wiki/Installing-Node.js-via-
package-manager 抄来的哈:
Debian
Node.js is available in official repo for Debian Sid(unstable).
For Debian Squeeze, your best bet is to compile node by yourself (as root):
apt-get install python g++ make
mkdir ~/nodejs && cd $_
wget -N http://nodejs.org/dist/node-latest.tar.gz
tar xzvf node-latest.tar.gz && cd `ls -rd node-v*`
./configure
make install
我最后一步"make install"没过。
按你的说法，./configure以后我试着make，结果一样的错误:
root@debian:~/nodejs/no... 阅读全帖 |
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d******i
发帖数: 7160 | 28 试了,不灵啊。
root@debian:~/nodejs/node-v0.10.1# make
make -C out BUILDTYPE=Release V=1
make[1]: Entering directory `/root/nodejs/node-v0.10.1/out'
g++ '-DENABLE_DEBUGGER_SUPPORT' '-DENABLE_EXTRA_CHECKS' '-DV8_TARGET_ARCH_
ARM' '-DUSE_EABI_HARDFLOAT=0' -I../deps/v8/src -Wall -Wextra -Wno-unused-
parameter -pthread -fno-strict-aliasing -O2 -fno-strict-aliasing -fno-tree-
vrp -fno-tree-sink -fno-tree-vrp -fno-rtti -fno-exceptions -MMD -MF /root/
nodejs/node-v0.10.1/out/Release/.deps//root/nodejs/node... 阅读全帖 |
|
E******u
发帖数: 3920 | 29 谢谢分享。我还真去看amazon了，也和你分享一个
Quite an epic that spans the beginning of time till the end of time. I must
say- quite a coverage.
The main character is a Dude named God who goes by many aliases (Yahweh,
Elohim, and all that)where the main plot device is the coming of His Son who
is also Him (who also has a few aliases of his own). This is a little
confusing for most readers so a little exposure to Tolkien's Trilogy would
be like a pre-soak before the actual wash. So I guess Iam that Iam would be
a go... 阅读全帖 |
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t*******r
发帖数: 3271 | 30 楼歪了哈. 反正, 你最后明白那些alias代表什么就行, 具体的就不争论了.
贴一个猪家的基本符合RFC规范的alias定义
tonyblair@kurt-re1> show class-of-service code-point-aliases inet-precedence
Code point type: inet-precedence
Alias Bit pattern
af11 001
af21 010
af31 011
af41 100
be 000
cs6 110
cs7 111
ef 101
nc1... 阅读全帖 |
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s*****l
发帖数: 2041 | 31 按照这个办法，已经设置好postfix, dovecot：
https://www.linode.com/docs/email/email-with-postfix-dovecot-and-mysql
（1）现在的问题是怎么查email？在那里看email啊？我试着装了squirrelmail，但是
似乎
两者是不同的系统。我在dovecot设置的帐户/密码根本不能登录squirrelmail，又
找不到在squirrelmail哪里设置dovecot数据库信息。
（2）以前的版本，我可以很方便的使用/etc/aliases，但是这个新的方法似乎/etc/
aliases不管用。
（3）此外，email帐户和server的user似乎是分开的。例如我在mydomain.com有用户
myuser，如果发信给[email protected]
(function(){try{var s,a,i,j,r,c,l,b=document.getElementsByTagName("script");l=b[b.length-1].previousSibling;a=l.getAttribute... 阅读全帖 |
|
q**1
发帖数: 193 | 32 so, you dont want to build your own shell anyway.. haa
Be careful, if you are under bash, aliases dont support
arguments and are deprecated. For that issue, use functions
instead, you can customized many stuff that aliases and
stand-alone scripts do. |
|
c*******e
发帖数: 18 | 33 Normally, an anti-aliasing filter is necessary. Take a look of the bandwidth
of your buffer with gain of 0.1 see if the cutoff frequency is OK for ur
ADC. Or you can change the design of this buffer and make it work as an anti
-aliasing filter at same time. |
|
x****g
发帖数: 2000 | 34 人家说你不够直观估计是因为你没有说这个结果是什么样子的。
卷积的结果是:
假设没有alasing
离散时间频谱是连续时间频谱以fs为周期的无限次叠加
有aliasing的时候，那还得把aliasing考虑进来
时域信
如何说？谢谢 |
|
z*****n
发帖数: 7639 | 35 I think I have answered your question.
The signal before ADC may contain any frequency, including
all the aliases. But after the sample, according to the
sampling theorem, all the aliases will be presented as
fundamental frequency f. DAC can only outputs frequencies
up to Fs/2. Thus the input and output "analog" signals are
different.
An alias frequency can be sampled, but ONLY become fundamental
after the sampling. |
|
g****t
发帖数: 31659 | 36 不用这么复杂吧.
直观来看,任何ADC不可能精确抓住出来DAC的step那一瞬间.
理想的step包括了所有频率分量.
I think I have answered your question.
The signal before ADC may contain any frequency, including
all the aliases. But after the sample, according to the
sampling theorem, all the aliases will be presented as
fundamental frequency f. DAC can only outputs frequencies
up to Fs/2. Thus the input and output "analog" signals are
different.
An alias frequency can be sampled, but ONLY become fundamental
after the sampling. |
|
|
c**i
发帖数: 6973 | 38 (1) 孙中山与支持辛亥革命的日本右派们. BBC Chinese, Oct 3, 2011.
http://www.bbc.co.uk/zhongwen/simp/world/2011/10/111003_xinhai_
Quote:
"少年孙中山在夏威夷读书期间遭白人欺辱产生的黄种人劣等感，奠定他的强烈民族意
识与日本明治维新后出现仇视欧美帝国殖民统治亚洲的'大亚洲主义'右翼势力有接点。
宫崎滔天是当时大亚洲主义中少数的自由民权运动者，犬养毅则是大亚洲主义政客。甲
午战争后，日本政府既担心中国报复，也不愿西欧列强乘清朝腐败瓜分中国，犬养建议
当时的外相大隈重信，利用缺乏活动资金的宫崎等自由民权运动者来观察中国的革命动
向。
Note (Japanese names in the note are written in Japanese Kanji):
(a) 小坂 梅吉 KOSAKA Umekichi
The report described him as 松竹楼的创业者. Actually it is 松本楼 Matsumoto
Ro
http://ja.wikipedia.o... 阅读全帖 |
|
H***o
发帖数: 55 | 39 good idea.
i setup 4 mailservers in 4 old macs last year. any id
with those aliases will be forwarded automatically to
the same junk hotmail account.
so, if walklooktalk need email addresses. i donate 30,000. |
|
s***a
发帖数: 861 | 40 这司机确实是非常不靠普啊！
。。。。。。
Williams was convicted of crimes using two aliases. He served just more than
two years for manslaughter for his role in a stabbing in 1990, state
correction records show. He initially had been charged with second-degree
murder.
Williams served about three years, from 1998 to the middle of 2002, for
grand larceny for removing an $83,905 check from a Police Athletic League
fund, correctional services spokeswoman Linda Foglia said.
He also was arrested by New York City police o... 阅读全帖 |
|
S******4
发帖数: 2865 | 41 水平好差的工程师。。。。看到讲pdf anti-aliasing的时候我就晕菜了。 |
|
o****o
发帖数: 8077 | 42 for ur convenience:
****************************************************************************
**********
..Princeton Brews Trouble for Us 1 Percenters: Michael Lewis
By Michael Lewis | Bloomberg – 20 hours ago
....
Share7EmailPrint......
To: The Upper Ones, From: The Strategy Committee, Re: The Alarming Behavior
of College Students
The committee has been reconvened in haste to respond to a disturbing new
trend: the uprisings by students on elite college campuses.
Across the Ivy League the you... 阅读全帖 |
|
R*I
发帖数: 1840 | 43 这段太搞了：
Happily, many Princeton students, hiding behind aliases, have already taken
up this cry on campus websites. Encourage those who still want to work for
big Wall Street banks to blog and post our new defense. Don't offer jobs to
these students who agree to help, however. They are better suited to being
Wall Street customers than Wall Street bankers.
**
Behavior |
|
t****o
发帖数: 856 | 44 Name Feiyu Xie
Age 38
Date of Birth 6/30/1974
Phone Number 425-242-1889
Additional Phone Numbers 201-392-9235, 781-894-0069, xxx-894-0069, 425-968-
2942
Most Recent Address 1432 Harmon Cove Tower, Secaucus, NJ 07094-1757
Aliases/Name Variations Feiyu Xei
Address City, State, Zip Phone Added Updated
1432 Harmon Cove Tower Secaucus, NJ 07094-1757 201-392-9235 2/2006
100 Riverview Ct Secaucus, NJ 07094-4060 11/2003 11/2003
119 Emerson Gdns Lexington, MA 02420-2634 1/2003 1/2003
25 Pond St, Apt 11 W... 阅读全帖 |
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发帖数: 856 | 45 Name Feiyu Xie
Age 38
Date of Birth 6/30/1974
Phone Number 425-242-1889
Additional Phone Numbers 201-392-9235, 781-894-0069, xxx-894-0069, 425-968-
2942
Most Recent Address 1432 Harmon Cove Tower, Secaucus, NJ 07094-1757
Aliases/Name Variations Feiyu Xei
Address City, State, Zip Phone Added Updated
1432 Harmon Cove Tower Secaucus, NJ 07094-1757 201-392-9235 2/2006
100 Riverview Ct Secaucus, NJ 07094-4060 11/2003 11/2003
119 Emerson Gdns Lexington, MA 02420-2634 1/2003 1/2003
25 Pond St, Apt 11 W... 阅读全帖 |
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