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Peter O'Connor petered

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petered / temporal-basis-funcs
Last active February 15, 2018 15:29
2018-01-29 Temporal Basis Funcs II
$$
\newcommand{\pderiv}[2]{\frac{\partial #1}{\partial #2}}
\newcommand{\pderivsq}[2]{\frac{\partial^2 #1}{\partial #2^2}}
\newcommand{\lderiv}[1]{\frac{\partial \mathcal L}{\partial #1}}
\newcommand{\pderivgiven}[3]{\left.\frac{\partial #1}{\partial #2}\right|_{#3}}
\newcommand{\norm}[1]{\frac12\| #1 \|_2^2}
\newcommand{argmax}[1]{\underset{#1}{\operatorname{argmax}}}
\newcommand{argmin}[1]{\underset{#1}{\operatorname{argmin}}}
\newcommand{blue}[1]{\color{blue}{#1}}
\newcommand{red}[1]{\color{red}{#1}}
@petered
petered / sample-file
Created May 7, 2018 08:35
Title5
$$
\newcommand{\pderiv}[2]{\frac{\partial #1}{\partial #2}}
$$
My Update:
$x \leftarrow x - \eta \pderiv{\mathcal L}{x}$
![enter image description here](https://drive.google.com/uc?export=download&id=1aVrpacFQPnnODgLDiBtW6n8oCr3z2m1t)
@petered
petered / making-online-markdown-report.md
Last active May 7, 2018 09:37

Making a Markdown Report

This is a method for making quick markdown reports for things like weekly meetings. Suggestions for improvement are welecome.

This tutorial shows us how to make this sample document

Positives:

@petered
petered / 2018-05-04 meeting
Created May 8, 2018 12:23
2018-05-04 draft
# Identities
**Delta, Sum**
\begin{align}
\Delta (x_t) &:= x_t - x_{t-1} \\
\Sigma (x_t) &:= s_t := s_{t-1} + x_t \\
\Sigma \circ \Delta &= \mathcal I
\end{align}
@petered
petered / experiment_tutorial.html
Created May 10, 2018 07:27
Tutorial for Artemis Experiments
This file has been truncated, but you can view the full file.
<!DOCTYPE html>
<html>
<head><meta charset="utf-8" />
<title>experiment_tutorial</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
<style type="text/css">
/*!
@petered
petered / why-alignment
Created September 12, 2018 14:40
2018-09-12 Why Alignment?
$$
\newcommand{\pderiv}[2]{\frac{\partial #1}{\partial #2}}
\newcommand{\lderiv}[1]{\frac{\partial \mathcal L}{\partial #1}}
\newcommand{\argmax}[1]{\underset{#1}{\operatorname{argmax}}}
\newcommand{\argmin}[1]{\underset{#1}{\operatorname{argmin}}}
\newcommand{\switch}[3]{\begin{cases} #2 & \text{if } {#1} \\ #3 &\text{otherwise}\end{cases}}
\newcommand{\blue}[1]{\color{blue}{#1}}
\newcommand{\red}[1]{\color{red}{#1}}
\newcommand{\overlabel}[2]{\overset{#1}{\overline{#2}}}
\newcommand{\loss}[0]{\mathcal L}
@petered
petered / alingmnet-surprise
Created September 12, 2018 14:46
2018-09-12 Why Alignment?
<p><script type="math/tex; mode=display" id="MathJax-Element-1">
\newcommand{\pderiv}[2]{\frac{\partial #1}{\partial #2}}
\newcommand{\lderiv}[1]{\frac{\partial \mathcal L}{\partial #1}}
\newcommand{\argmax}[1]{\underset{#1}{\operatorname{argmax}}}
\newcommand{\argmin}[1]{\underset{#1}{\operatorname{argmin}}}
\newcommand{\switch}[3]{\begin{cases} #2 & \text{if } {#1} \\ #3 &\text{otherwise}\end{cases}}
\newcommand{\blue}[1]{\color{blue}{#1}}
\newcommand{\red}[1]{\color{red}{#1}}
\newcommand{\overlabel}[2]{\overset{#1}{\overline{#2}}}
\newcommand{\loss}[0]{\mathcal L}
@petered
petered / alignment-surprise
Created September 12, 2018 14:47
2018-09-12 Why Alignment?
<p><script type="math/tex; mode=display" id="MathJax-Element-1">
\newcommand{\pderiv}[2]{\frac{\partial #1}{\partial #2}}
\newcommand{\lderiv}[1]{\frac{\partial \mathcal L}{\partial #1}}
\newcommand{\argmax}[1]{\underset{#1}{\operatorname{argmax}}}
\newcommand{\argmin}[1]{\underset{#1}{\operatorname{argmin}}}
\newcommand{\switch}[3]{\begin{cases} #2 & \text{if } {#1} \\ #3 &\text{otherwise}\end{cases}}
\newcommand{\blue}[1]{\color{blue}{#1}}
\newcommand{\red}[1]{\color{red}{#1}}
\newcommand{\overlabel}[2]{\overset{#1}{\overline{#2}}}
\newcommand{\loss}[0]{\mathcal L}
@petered
petered / sync_data_from_dji_sd_card.py
Last active June 26, 2022 18:33
Syncs data from a DJI SD Card to your local file system, renaming files using modified time
import os
import shutil
import sys
from argparse import ArgumentParser
from datetime import datetime
from typing import Optional, Sequence
def modified_timestamp_to_filename(timestamp: float) -> str:
return datetime.fromtimestamp(timestamp).strftime('dji_%Y-%m-%d_%H-%M-%S')
@petered
petered / draw_bounding_boxes.py
Last active June 27, 2022 23:27
Simple tool using OpenCV to manually draw bounding boxes on an image, and return the coordinates of those boxes
from typing import Optional, Tuple, Sequence
import cv2
def draw_bboxes_on_image(
image, # A (height, width, 3) unit8 numpy array representing an image
return_relative=False, # True to return box coorinates relative to width/height of image so they will be in [0, 1] interval
window_name='Draw Your Bounding Box', # What to call the window
display_color=(0, 0, 255), # Colour of the displayed box
display_thickness=2 # Thickness of the displayed box