- published: 22 May 2015
- views: 253831
DCT may refer to:
A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, from lossy compression of audio (e.g. MP3) and images (e.g. JPEG) (where small high-frequency components can be discarded), to spectral methods for the numerical solution of partial differential equations. The use of cosine rather than sine functions is critical for compression, since it turns out (as described below) that fewer cosine functions are needed to approximate a typical signal, whereas for differential equations the cosines express a particular choice of boundary conditions.
In particular, a DCT is a Fourier-related transform similar to the discrete Fourier transform (DFT), but using only real numbers. DCTs are equivalent to DFTs of roughly twice the length, operating on real data with even symmetry (since the Fourier transform of a real and even function is real and even), where in some variants the input and/or output data are shifted by half a sample. There are eight standard DCT variants, of which four are common.
DCT is the secret to JPEG's compression. Image Analyst Mike Pound explains how the compression works. Colourspaces: https://youtu.be/LFXN9PiOGtY JPEG 'files' & Colour: https://youtu.be/n_uNPbdenRs Computer That Changed Everything (Altair 8800): https://youtu.be/6LYRgrqJgDc Problems with JPEG: COMING SOON Upside Down Trees (Huffman Encoding): https://youtu.be/umTbivyJoiI Colourspaces: https://youtu.be/LFXN9PiOGtY JPEG isn't a file format - JPEG pt1: https://youtu.be/n_uNPbdenRs Upside Down Trees (Huffman Encoding): https://youtu.be/umTbivyJoiI Problems with JPEG: COMING SOON! Computer That Changed Everything (Altair 8800): https://youtu.be/6LYRgrqJgDc http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Comput...
Elsa Starts a Fire Disney Frozen Episodes Play Doh Animation with Elsa and Anna Stop Motion Our official pages! https://twitter.com/dctcfans https://www.facebook.com/pages/Disney-Cars-Toy-Club/207062189487320 Music by Audio Micro Music By Kevin Macleod
DCTの開発は、「もっとバイクを楽しんで欲しい」という開発者の想いから始まりました。楽するためではなく、 「乗って楽しい」というバイクの原点を追求した結果、これまでの概念さえも塗り替えてしまう革新的なライディングを実現したのです。 DCTは、Hondaからすべてのライダーに送る「新体験」の提案です。 honda-dct.com
Dual clutch transmissions are taking over the world, they are great but are we missing out on the joy of the manual transmission? Find me on Facebook here https://www.facebook.com/kiwinicktube Find me on Twitter here https://twitter.com/nick_murray Find me on Instagram here http://instagram.com/droppedbaby1
Tutorial on using the BMW DCT transmission in a 2010 e92 m3. Launch control will be shown in a later video once the summer tires are back on the car. If you have any questions about living with DCT please leave a comment. Email: Tedwarddrives@gmail.com Subscribe to the channel! Instagram: Tedward_ig Snapchat: tedcol Tedward Drive Tribe: https://www.drivetribe.com/t/NprgIsRfRCK6It4P_fXfLQ/AQGbvj1kRVOqN3bGceBw7w Music: http://www.youtube.com/user/CHUKImusic Instrumental produced by Chuki Real Chill Old School Hip Hop Instrumentals Rap Beat #18
--- See full description --- Common Eye Surgeries by Dr. Samar K. Basak These are videos are from the CD provided along with the textbook "Essentials of Ophthalmology" by Dr. Samar K. Basak Other videos of this series- http://goo.gl/qdPSk My other videos: http://goo.gl/H5hDF Visit our website: http://doctorprodigious.wordpress.com . Visit our website: http://doctorprodigious.wordpress.com/
DCTs (DSG) technology has gained a substantial market share in the recent times ( up from 3.4% to 8.5% market share in the last 5 years). This video illustrates with the help of animation why DCTs are the best transmission ever. This video also gives a brief introduction on working and drawbacks of a regular manual transmission. We thank our current patrons for saving LE from death. To achieve our goal of 2 video release/ month (addition of one more team member), please support us at Patreon. https://www.patreon.com/LearnEngineering Like us on FB : https://www.facebook.com/LearnEngineering Voice-over artist : https://www.fiverr.com/mikepaine
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Image and video processing: From Mars to Hollywood with a stop at the hospital Presented at Coursera by professor: Guillermo Sapiro of Duke university https://class.coursera.org/images-2012-001/class/index For more information about me come on my website: http://alirsaberi.weebly.com/ And more tutorials: http://alirsaberi.wordpress.com/
Honda motorcycles have a long history of innovative technology and design. Recently, Honda launched its new automatic Dual Clutch Transmission (DCT) on several models in their motorcycle line-up, but what exactly is a dual clutch transmission? Watch this fun video to find out.
►SUBSKRYPCJA► http://www.youtube.com/user/CODApl?sub_confirmation=1 ►Facebook► https://www.facebook.com/CODApl ►Grupa CODA WARRIORS► https://www.facebook.com/groups/827992747335263/ ►CODA ZONE ► https://www.youtube.com/user/CODAzone ►Instagram ► https://www.instagram.com/codapl/ ►KOSZULKI/VLEPY► http://coda.cupsell.pl W tym odcinku poradnika "motocyklowe know-how" całkiem sporo słów na temat skrzyni DCT. Jak działa, jak jej używać, jakie są jej plusy i minusy. Subskrybuj, polub i prześlij innym jeśli Ci się spodobało. Pytania/uwagi - zostaw komentarz. Zachęcam do subskrypcji kanału/Subscribe: http://www.youtube.com/user/CODApl?sub_confirmation=1
The newly designed, EcoShift® Dual Clutch Transmission strikes the optimal balance of performance and fuel efficiency with the convenience of an automatic car.
What's the difference between the old SMG in the e46 M3 and the DCT in the e9x series BMW M3? Plenty, the DCT is a complete evolution above the SMG, watch the video and comment below.
5 Things You Should Never Do In A Dual Clutch Transmission Car 5 Things You Should Never Do Playlist - https://goo.gl/SxoUi7 Subscribe for new videos every Wednesday! - https://goo.gl/VZstk7 Don’t put the transmission in neutral when you come to a stop. There’s no need to do this. You may think the clutch will be partially engaged and wearing out, but the system will be sure to disengage the clutch (while keeping first gear pre-selected). Don’t take your foot off the brake when you’re on an incline. The clutch may attempt to hold the vehicle. Unlike in an automatic transmission where you have this slip absorbed by the torque converter, this will directly cause wear on the clutch. Depending on the design, the effects can be even greater with a dry clutch, which has no oil around it. Wet ...
Everything I've ever done
And everything I have
Amounts to nothing
Keeps on crushing you within
Sometimes you want to be alone
It won't find the time to understand
And concentrate on everything you see
If you think about it hard you'll know