derf_

48 ms·

451.
by derf_ 12y ago
I'm not sure I'm following your argument. The point is that many regions of an image simply do not have detail. This is made obvious by sparseness in a wavelet representation, but the representation is not key to the argument. A c
452.
by derf_ 12y ago
I'll link the same paper TD-Linux did in the BPG discussion: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.41.... The damning bits are this: "A fundamental weakness of fractal block coders is that
453.
by derf_ 12y ago
He is referring to < https://github.com/mozilla/firefox-ios> . But you will note that none of those things are "in" Firefox. H.264 support in the <video> tag is implemented via platform-specific API
454.
by derf_ 12y ago
JPEG 2000, JPEG XR, and WebP are the best-known (e.g., not toy research projects).
455.
by derf_ 12y ago
> Companies do this all the time, not just in audio, and they have for years. Yes, I agree they do. A lot. Do you think that should make you want to buy their products more ? That was what the parent was claiming.
456.
by derf_ 12y ago
That was indeed a thing in the days before AES-NI or simply having 1.4 billion transistors on a chip. But in my day we've been spending years fighting this sort of short-sightedness: https://www.ietf.org/mail-archive&#x
457.
by derf_ 12y ago
Is that the same way I can always insist on only ever receiving PGP-encrypted e-mail?
458.
by derf_ 12y ago
From the homepage: > Send and receive extensible messages with optional end-to-end encryption Why would encryption ever be "optional"?
459.
by derf_ 12y ago
The highest representable frequency really is the Nyquist rate: you only need 1 bit of sample depth to generate a digital signal whose corresponding band-limited continuous signal is a sine wave that oscillates at that rate. Sample depth
460.
by derf_ 12y ago
Did you read the article? "The ultrasonics are a liability during playback.... Neither audio transducers nor power amplifiers are free of distortion, and distortion tends to increase rapidly at the lowest and highest frequencies. ...an
461.
by derf_ 12y ago
Depends on what you consider "modern". Core2 timings changed wildly based on code alignment (experienced myself and documented by others here: http://x264dev.multimedia.cx/archives/51 ).
462.
by derf_ 12y ago
Yes. I believe it is called "Firefox".
463.
by derf_ 12y ago
It is. DTLS-SRTP is required for media. The SCTP data channels are also layered on top of DTLS [1]. Now, obviously one "end" might be a conference mixer with unencrypted access to the PSTN, but direct browser-to-browser connection
464.
by derf_ 12y ago
> That said, this sort of arrangement seems to be extremely rare in the US No, this is pretty common in government and government contracting. It's called an RDO: "regular day off"... more commonly known outside the US as
465.
by derf_ 12y ago
The AIA now allows third parties to submit prior art before a patent is issued. The fine folks at http://www.pubpat.org/ might be able to help.
466.
by derf_ 12y ago
> In that event, what is the value of a first-to-file system, if a competing inventor can use their earlier invention as prior art? If company 2 had published their work, then it would count as prior art. The benefit of first-to-file i
467.
by derf_ 12y ago
Yeah, load them in two browser tabs and switch back and forth for best effect. Though even at the small size you can see how badly JPEG gets the colors wrong at this rate.
468.
Daala: Perceptual Vector Quantization (PVQ)(people.xiph.org)
17 points by derf_ 12y ago|3 comments
469.
by derf_ 12y ago
Cisco hired a law firm to write a summary, which they made public: http://www.duanemorris.com/memo/VP8Compilation.pdf TL/DR: VP8 was found not to infringe one patent. The other proceeding in the German courts was
470.
by derf_ 12y ago
This was already-existing terminology in the IETF working-group. A "WebRTC-compatible" device is one that does not conform to the standard, but which can talk to something that does conform to the standard )in whatever limited way
471.
by derf_ 12y ago
Buffett addressed this criticism in 1984, when he presented the public records of all of the students of Graham and Dodd it was possible to track: < http://www4.gsb.columbia.edu/null?&exclusive=filemgr.downloa... The
472.
by derf_ 12y ago
And the sane, ethical response to that is, "I'm told Amazon takes the long view, and the long view here is that we will maximize FCF by not betraying partners and not doing anything we wouldn't want to appear on the front pag
473.
by derf_ 12y ago
> there are things for which imagery beats text (notably, maps) You are at the southern edge of a great cavern. To the south across a shallow ford is a dark tunnel which looks like it was once enlarged and smoothed. To the north a narrow
474.
by derf_ 12y ago
So that would include the nearly $100 million collected by Forgent in settlements over bogus JPEG patents [1]? Or all of the other NPEs who target the small startup, the app writer, or anyone else they can think of who can't afford a l
475.
by derf_ 12y ago
I choose drive brands almost exclusively based on warranty duration. After Seagate bought Maxtor, they started lowering warranties on all of their drives. The results, as you can see, were predictable.
476.
by derf_ 12y ago
They will certainly do this if you miss a connection (because, say, the plane you were supposed to get on never showed up and the one that did eventually arrive hours later was 50 seats smaller than it was supposed to be and had a malfuncti
477.
by derf_ 12y ago
The actual paper with the theorems: http://arxiv.org/abs/1011.4609
478.
Amazon's Latest Volley(whatever.scalzi.com)
5 points by derf_ 12y ago|1 comments
479.
by derf_ 12y ago
Well, part of this is that some of these are just "solved problems". For example, once you have arithmetic coding, you never have to worry about the actual bitwise encoding again (anything on top of that is just speed optimization
480.
by derf_ 12y ago
Sadly, the description of arithmetic coding bears almost no resemblance to the actual algorithm (it roughly describes the equal probability case, but that misses most of the point). The description of Shannon-Fano as "bottom up" a

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