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MMAT5390202021 - Shared screen with speaker view
Chin Ting Timothy TSANG
24:28
hi
Ka Lung CHAN
24:28
HI
Chin Ting Timothy TSANG
24:30
yes
Ray JIN
24:30
Yes
Peiqin LI
24:32
hi
Ying WAN
24:33
yes
Zhe CHEN
24:33
Good evening
Ka Lung CHAN
24:42
YES
Zhe CHEN
24:43
yes
Ying WAN
24:44
yes
Ho Renee TIN
36:48
yes
James Tung
36:50
yes
Zhe CHEN
36:51
yes
Wng Suet CHU
36:51
YES
Ray JIN
36:52
yes
Peiqin LI
36:54
yes
Ka Lung CHAN
36:55
YES
Ray JIN
40:13
yes
Ka Lung CHAN
40:15
YES
Ho Renee TIN
43:26
1
Chin Ting Timothy TSANG
43:27
1?
Ka Lung CHAN
46:52
YES
Ho Renee TIN
46:53
ok
James Tung
47:55
We cannot see it
James Tung
48:05
Now ok
James Tung
48:20
yes
Ka Lung CHAN
48:30
no lag today
James Tung
55:00
I still dont understand the last step
James Tung
55:09
yes
James Tung
55:38
why does u only goes to M-1?
James Tung
56:43
so feven(M-1) = f(N)?
James Tung
57:11
Ah I see
James Tung
58:26
But feven+fodd for u up to M-1 already covered all u up to N-1?
James Tung
01:01:56
ok
Peiqin LI
01:02:04
yes
Ho Renee TIN
01:02:04
ok
Ka Lung CHAN
01:02:06
YES
Ray JIN
01:02:06
yes
Qianyi ZHU
01:02:07
yes
Chen CHEN
01:02:10
yes
Chen CHEN
01:08:30
yes
Zhe CHEN
01:08:31
yes
Ho Renee TIN
01:08:32
yes
Peiqin LI
01:11:43
O(N log(N))
Wng Suet CHU
01:15:11
yes
Ho Renee TIN
01:15:11
yes
James Tung
01:15:13
yes
Ray JIN
01:22:26
yes
Ho Renee TIN
01:22:27
seems that we only need the second and the third equations
Ho Renee TIN
01:22:46
ok
Ho Renee TIN
01:24:41
yes
Ka Lung CHAN
01:24:53
YES
Chen CHEN
01:24:53
yes
Zhe CHEN
01:24:55
yes
Ho Renee TIN
01:30:14
does the enlarge by 2 related to the even function property to cosine?
Ho Renee TIN
01:31:10
Thank you
Zhe CHEN
01:34:40
yes
James Tung
01:34:41
yes
Chen CHEN
01:34:41
yes
Peiqin LI
01:34:42
yes
Ho Renee TIN
01:34:43
ok
Ka Lung CHAN
01:34:46
YES
Ka Lung CHAN
01:35:54
YES
Wng Suet CHU
01:35:55
yes
Ka Lung CHAN
01:39:34
there are more than black,white and grey color in EDCT?
Ka Lung CHAN
01:40:04
OK
Ho Renee TIN
01:47:29
I don't understand why cosine and sine transform have so much differenceAnd why there are something like two rays on the top right image in the previous slide
Ho Renee TIN
01:47:59
difference in terms of error
Ho Renee TIN
01:48:02
oh
Ho Renee TIN
01:50:30
yes
Ho Renee TIN
01:50:32
Thank you
Ho Renee TIN
01:51:19
ok
Chin Ting Timothy TSANG
01:52:44
why the white points are concentrate in the top left corner?
Chin Ting Timothy TSANG
01:54:47
yes
Chin Ting Timothy TSANG
01:54:48
thank you
Chin Ting Timothy TSANG
01:55:26
i cant see the difference
Ka Lung CHAN
01:59:49
for haar transform, do we have some kind of fast calculation as generated by the haar function and have many elements in the matrix with same value?
Ronald LUI
02:02:53
Unfortunately, there is not a fast method as fit for haar.
Ka Lung CHAN
02:05:34
cannot use some kind of recursive calculation with a multiplication of root 2?
Ronald LUI
02:07:15
There are some works about it but the definition has to be adjusted.
Ka Lung CHAN
02:08:37
ok, I see. thank you
Peiqin LI
02:14:40
yes
Ray JIN
02:14:40
yes
Chen CHEN
02:14:41
yes
Ka Lung CHAN
02:14:42
YES
Wing Suet CHU
02:14:43
yes
Ka Lung CHAN
02:18:24
YES
Peiqin LI
02:18:25
yes
Ka Lung CHAN
02:22:13
YES
Chen CHEN
02:22:16
yes
Ho Renee TIN
02:22:16
yes
James Tung
02:22:20
yes
Ho Renee TIN
02:28:52
Does EDCT inherit this propety too?
Ho Renee TIN
02:29:04
oh
Ho Renee TIN
02:29:10
Thank you
Ho Renee TIN
02:35:12
inverse DFT
Peiqin LI
02:35:17
DFT
Ray JIN
02:37:21
yes
Ka Lung CHAN
02:37:22
YES
Ho Renee TIN
02:37:23
yes
Peiqin LI
02:37:23
yes
Ka Lung CHAN
02:40:43
YES
Ka Lung CHAN
02:55:47
YES
Peiqin LI
02:55:47
yes
James Tung
02:55:52
yes
Chen CHEN
02:55:52
yes
Ho Renee TIN
02:55:53
yes
Chin Ting Timothy TSANG
02:56:04
yes
Ronald LUI
02:56:20
Thank you very much for attending the lecture tonight.
James Tung
02:56:22
Can you explain the notion of Q3?
Ka Lung CHAN
02:56:23
Thank you