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#off-topic
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2018-08-24
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idiomancy01:08:09

does anyone know anything about BEM css? I have questions about how I'm supposed to do stuff but there's no slack channel for it 😆

emccue02:08:02

Anyone have any good ideas on how to label frames of video for machine learning?

emccue02:08:55

Each frame will have about 5 labels each of which would get its own classifier in my head right now

emccue02:08:14

I just want a way to do this efficiently

emccue02:08:09

I dont have to label regions or anything

emccue02:08:17

just say what category the frame is in

henrik08:08:27

This is a color scheme I originally put together for one of our services (Zendy), but it makes for a rather nice Slack color scheme as well: #2A313E,#3A4050,#14ABF7,#FFFFFF,#3A4050,#F7F8FB,#2DD3C4,#D91A5F

jgh08:08:39

@emccue what do you mean label? Could you not just have an accompanying json file or something with the labels and frame timestamps?

dominicm09:08:21

@henrik that theme matches the color scheme I'm using already

dominicm09:08:06

#2E3440,#3B4252,#88C0D0,#2E3440,#3B4252,#D8DEE9,#A3BE8C,#81A1C1

jgh10:08:28

someone posted this clojure-ish one a few weeks ago: #293C4B,#34495E,#5CB5CD,#FFFFFF,#34495E,#FFFFFF,#7CD32B,#F2AE00

👍 4
vemv13:08:49

anyone can recommend a simple/cheap performance analyzer for postgresql over RDS?

vemv13:08:26

I need to know which queries are being slow, or if too many reqs/sec are being performed

emccue14:08:15

@jgh hypothetically that works, but i have about 10gb of video, so I cant do that manually

jgh14:08:42

what are you trying to do exactly? What are you labeling?

emccue14:08:38

a few hours of halo pc footage

emccue14:08:31

so for a first phase in this project I am trying to label 1. What weapon am I holding

emccue14:08:37

2. What is my health

emccue14:08:06

3. What are my shields at

3Jane14:08:24

I vaguely remember talking to people who attempted to figure out the genre of a film by classifying its frames

3Jane14:08:55

as in, they made their living this way. maybe it was vimeo or something?

3Jane14:08:05

and even they didn’t analyse everything, just sampled every nth frame, and somehow modified the frequency of frame sampling by how likely they were going to find something new / relevant

3Jane14:08:02

no, what’s that? the dominant colour of every frame?

3Jane14:08:23

I love how they convey the palette of the movie 🙂

bronsa14:08:26

average color of every frame

3Jane14:08:46

also: I wonder if that means most modern action movies are going to be mostly orange and teal 😄

😢 4
3Jane14:08:23

in short, I wouldn’t attempt to label every frame.

jgh14:08:49

if that information is in the same place on screen constantly you could probably put together an OpenCV thing to read what they are

jgh14:08:12

if the game is DOTA or LoL there might even be an API you can access to get that data

3Jane14:08:00

DOTA doesn’t need video analysis, it logs (and, I think, transmits) information about individual positions and state

3Jane14:08:27

the replay is not a video recording, it’s a board-resync

3Jane14:08:23

(mind you, I haven’t actually inspected the data stream, just played a long time ago, and used the various stats / gameplay analysis services)