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BIOENGR M209 · Lec 1

Signal and Image Processing for Biomedicine

Fall 2026Ruan, D.4 units

Also listed as PBMED M209 (open, 2 of 6 enrolled, majors only): the same class, and each department holds its own seats and its own grade history.

dibs reads this section's seats hourly, like everything else, but it does not send alerts for graduate courses yet.

Seats, time, final and grades

Seats

Open, 23 seats left.

17 of 40 enrolled, lecture and all discussions summed.

Read 7 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

Meets

WF 8:30am-10:30am

Lecture only. You also attend a discussion, listed below.

Final

Exam time unavailable

No exam time is listed in the available section details. Check the registrar or current syllabus; this does not mean there is no final.

Grades

3.93

Predicted GPA

Historical records for RUAN, DAN; 77 letter grades

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 3 days ago: "Graduate Students".

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions checked 3 days ago and may be outdated. Seat alerts are unavailable for this course. Check the registrar.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

2 discussions, all open.

  • Lab 1A

    WF 4:00pm-5:50pm

    An unnamed TA

    Open, 6 seats left.

  • Lab 1B

    WF 5:00pm-6:50pm

    An unnamed TA

    Open, 17 seats left.

When it meets

Discussion alternatives are shown with the lecture; choose one linked discussion.

Mon
Tue
Wed
Thu
Fri
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm

Lec 1

8:30am-10:30am

Lab 1A

4pm-5:50pm

Lab 1B

5pm-6:50pm

Lec 1

8:30am-10:30am

Lab 1A

4pm-5:50pm

Lab 1B

5pm-6:50pm

Scroll sideways for the whole week. All meeting times are listed below.

  • Lec 1

    WF 8:30am-10:30am

  • Lab 1A (alternative)

    WF 4:00pm-5:50pm

  • Lab 1B (alternative)

    WF 5:00pm-6:50pm

Center for the Health Sciences BH173

Grades

3.93

Predicted GPA

Historical records for RUAN, DAN; 77 letter grades
A range
97%
P/NP
0%
D/F/W
0.0%

Full grade history for BIOENGR M209

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, very light. 5.0 of 5 for Dan Ruan, where 5 is lightest. Read 14 days ago.

No reviews were listed in the BruinWalk source checked 6 days ago. Assignment details are unknown. Check the current syllabus.

Will it still be here

Not a question any more: see the notice at the top of this page.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 2622F
  • 1623F
  • 1824F
  • 1725F
Enrollment by term: 22F 26, 23F 16, 24F 18, 25F 17

Peak 26 · most recent 25F at 17

Seats over time

Nothing read since 16 Oct, 7 hours ago. Over about 2 months before that, freed 1 seat.

17 of 40 · 23 left in its discussions
18 Aug 19:4017 Sep 06:1116 Oct 16:42 · 7 hours ago
Checked 168 of the 636 hours with hourly history, 26%. No reading was recorded in 468 hours. dibs had no hourly record before 20 Sep, which is the other 778 of 1414 plotted.17 of 40 enrolled at the newest reading, 7 hours ago, with 23 left in its discussions. Seats from 18 Aug 19:40 to 16 Oct 16:42, 18 to 17. Checks are not continuous monitoring. Changes between checks may be missed.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not, and that was 7 hours ago. It is where the line stops, not where the count is now.

Show the readings (24)
Recorded Enrolled Capacity Status Waitlist Hours read
16 Oct 16:42 17 40 open - 18 of 64
14 Oct 01:12 17 40 open - 63 of 246
3 Oct 20:32 18 40 open - 11 of 42
2 Oct 03:02 19 40 open - 3 of 9
1 Oct 19:02 20 40 open - 2 of 5
1 Oct 15:33 19 40 open - 6 of 21
30 Sep 19:22 20 40 open - 5 of 15
30 Sep 05:22 21 40 open - 8 of 27
29 Sep 03:02 22 40 open - 2 of 5
28 Sep 23:32 21 40 open - 2 of 4
28 Sep 20:02 20 40 open - 19 of 66
26 Sep 03:42 19 40 open - 4 of 11
25 Sep 17:02 20 40 open - 7 of 23
24 Sep 19:22 21 40 open - 5 of 15
24 Sep 05:22 20 40 open - 27 of 178, 81 no hourly record
16 Sep 20:12 18 40 open - no hourly record
16 Sep 16:42 17 40 open - no hourly record
15 Sep 22:02 18 40 open - no hourly record
13 Sep 04:02 17 40 open - no hourly record
4 Sep 10:40 16 40 open - no hourly record
3 Sep 21:40 15 40 open - no hourly record
27 Aug 10:55 16 40 open - no hourly record
19 Aug 14:40 17 40 open - no hourly record
18 Aug 19:40 18 40 open - -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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