Canny's aim was to discover the optimal edge detection algorithm.

The optimal function in Canny's detector is described by the sum of four exponential terms, but can be approximated by the first derivative of a Gaussian.

* R. Deriche, Using Canny's criteria to derive a recursively implemented optimal edge detector, Int.

For this reason, it is often suggested to use Rachid Deriche's infinite impulse response form of Canny's filter ( the Canny-Deriche detector ), which is recursive, and which can be computed in a short, fixed amount of time for any desired amount of smoothing.

The differential edge detector described below can be seen as a reformulation of Canny's method from the viewpoint of differential invariants computed from a scale space representation leading to a number of advantages in terms of both theoretical analysis and sub-pixel implementation.

Then he tore the white paper from the biscuits, in order to reveal the original packaging.

A paper published at the same time proposed that the original three families should be retained as subfamilies within Xanthorrhoeaceae sensu lato.

A paper published at the same time as the 2009 classification proposed that the original three families should be retained as subfamilies within Amaryllidaceae sensu lato.

In the original Kerr Wyllie and Currie paper, British Journal of Cancer, 1972 Aug ; 26 ( 4 ): 239-57, there is a footnote regarding the pronunciation:

When AA was ported to the English Electric KDF9 computer, the character set was changed to ISO and that compiler has been recovered from an old paper tape by the Edinburgh Computer History Project and is available online, as is a high-quality scan of the original Edinburgh version of the Atlas Autocode manual.

The original authors published a subsequent paper in 2008 defending their conclusions.

An early treatment was the short story Autofac by Philip K. Dick, published in 1955, which precedes von Neumann's original paper about self-reproducing machines.

Admiral Anderson, Chief of Naval Operations wrote a position paper that helped Kennedy to differentiate between what they termed a " quarantine " of offensive weapons and a blockade of all materials, claiming that a classic blockade was not the original intention.

Investors in the VOC were issued paper certificates as proof of share ownership, and were able to trade their shares on the original Amsterdam stock exchange.

In 1994, a member of the original IBM DES team, Don Coppersmith, published a paper stating that differential cryptanalysis was known to IBM as early as 1974, and that defending against differential cryptanalysis had been a design goal.

This perception is based on a literal interpretation of Dyson's original short paper introducing the concept.

However, through careful research relating to paper construction, handwriting development, and the established principles of textual criticism, scholars can be rather certain about where these errors and changes appeared and what the original text probably said.

* Erlang's original paper

Commenting on this, other writers ( such as John von Neumann and David Bohm ) have suggested that consequently there would have to be ' hidden ' variables responsible for random measurement results, something which was not expressly claimed in the original paper.

The original paper purports to describe what must happen to " two systems I and II, which we permit to interact ...", and, after some time, " we suppose that there is no longer any interaction between the two parts.

* The original EPR paper.

Its binding is Turkish, and appears to be original ; but the paper has an Italian watermark, which has been dated between 1588 and 1620.

't Hooft's original paper.

He instead decided to try to physically transfer some ink from the original to another sheet of paper which was thin enough for the ink to go through to the other side, thus reproducing the writing exactly.

The fact that it was originally applied only to hardware again points back to the paper feeder as the original source of the term.

Courts have ruled this admissible as long as the original waiver is said and the " translation " is recorded either on paper or on tape.

They initially implied the proof was their own achievement based on the " Hamilton-Perelman theory ", but later retracted the original version of their paper, and posted a revised version, in which they referred to their work as the more modest " exposition of Hamilton – Perelman's proof ".

The example given by the original paper was two computers communicating over the Internet, under disguise of a standard communications session.

The original machine cut slits into the paper rather than punching holes, but the machine was soon modified.

However, as already mentioned in the original paper of Franz Wegner, a solid state theorist who introduced 1971 simple gauge invariant lattice models, the high-temperature behaviour of the original model, e. g. the strong decay of correlations at large distances, corresponds to the low-temperature behaviour of the ( usually ordered!

One possible derivation is from the proto-Germanic word * bastjan ( from Proto-Indo-European root word * b < sup > h </ sup > as ) means " binding " or " tie ".< ref > Köbler * b < sup > h </ sup > as </ ref > In this case, Bastarnae may have had the original meaning of an alliance or bund of tribes.

It was an offshoot of the Communist Party of Peru — Bandera Roja ( red flag ), which in turn split from the original Peruvian Communist Party, a derivation of the Peruvian Socialist Party founded by José Carlos Mariátegui in 1928.

At the temperature at optical depth 2 / 3, the energy emitted by the star ( the original derivation is for the sun ) matches the observed total energy emitted.

The original derivation of Aotearoa is not known for certain.

The name for the region among the Rohirrim is recorded as Sunlending, which echoes the derivation of the Sindarin original from Anor " Sun ", in parallel to Ithil " Moon " in Ithilien .</ div >

One tradition suggests it is a derivation of pal, from the palings around the original château.

Additionally, not all scholars accept the gwalch derivation ; noted Celticist John Koch has suggested the name could be derived from a Brythonic original * Wolcos Magesos, " Wolf / Errant Warrior of the Plain.

DEA is a derivation from Deutsche Erdöl-Aktiengesellschaft, the original name of the company.

While there is no direct proof of an original solar meaning of Janus, this being the issue of learned speculations of the Roman erudits initiated into the mysteries and of emperors as Domitian, the derivation from a Syrian cosmogonic deity proposed by P. Grimal looks more acceptable.

The original 1969 derivation will not be given here since it is not easy to follow and involves the assumption that the outcomes are all + 1 or − 1, never zero.

In one derivation Pen / Ben is cognate with Old Irish cenn, " head ", but an original * kwen-would be required, which is typologically not found in languages that feature labio-velars.

In Van der Waals ' original derivation, given below, < i > b '</ i > is four times the proper volume of the particle.

Penance and repentance, similar in their derivation and original sense, have come to symbolize conflicting views of the essence of repentance, arising from the controversy as to the respective merits of " faith " and " good works.

Just as the mixing paradox begins with two detectably different containers, and the extra entropy that results upon mixing is proportional to the average amount of work needed to restore that initial state after mixing, so the extra entropy in Boltzmann's original derivation is proportional to the average amount of work required to restore the simple gas from some " exchange macrostate " to its original " exchange macrostate ".

This section covers the early history, up to the derivation of the original Fowler – Nordheim-type equation in 1928.

Owing to the physical assumptions made in the original derivation, the term Fowler-Nordheim-type equation has long been used only for equations that describe the ECD at zero temperature.

William Camden in 1607 gave a much more fanciful derivation, claiming that the original name was Regne-wood, the " Regni " ( or Regnenses ) being an ancient people of Britain.

Such use may be expressed as where is the derived key, is the key derivation function, is the original key or password, is a random number which acts as cryptographic salt, and refers to the number of iterations of a sub-function.

The derivation of the original word is from the Sanskrit root kaañjika ( क ा ञ ् ज ि क ) ( meaning the same, but component roots together meaning ' formed in water ').

Haswell-Smith ( 2004 ) states that the original derivation was from the Brythonic budh meaning " corn ".

Euler's original " derivation " of the value is clever and original.

The meaning of the toponym is unknown but a commonly suggested derivation implies the elements " lag " ( Gaelic: hollow ), " breid " ( Norse: broad ) and " vik " ( Norse: bay ), implying an original Gaelic form something like " Lag Bhròdhaig " ( the hollow of Broadbay ).