https://www.jinpark.me/work daily 1.0 2022-09-07 https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1499258900859-D4YS0K1IUHLCQLAID4YD/image-asset.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498182760051-NP8MLWDCPLTZK9ZY8YBK/DSC_7206.JPG Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498184167550-HM331D51M97YQETYE2CA/DSC_7436.JPG Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498301204897-BJR97XHLY1FICKVOO2R5/DSC_7414.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498177922127-E54LFHWGOZSG52SCYHSK/IMG_20170428_145357.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498177920473-OJSJ42ZTI4DYNHDBLHJB/IMG_20170428_145435.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498177929425-CB1G3U1PZYT88L0SCSHC/IMG_20170428_145524.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498177929102-ZNLQU2SUF9GJ6LHSO043/IMG_20170428_145500.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498178618922-T49Y45ITNRY1SY37YDV6/DSC_7408.JPG Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1499053850075-BPY8P7I7AKO1WGNGYFXL/image-asset.jpeg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498306726510-V4B961P9E182UG599SRK/hssstu.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498306931753-13FAQ6709GZ4M3TYOA2J/diffimwoutmorph.png Works - Image Difference By computing the absolute difference between consecutive images, I made a first pass at segmenting moving people from the background. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498306962970-LVJYAN8213V64NTOCMD7/morphdiffim.png Works - Morphological Processes I used OpenCV and morphological processes to obtain masks of moving people and objects and computed the ratio between head and shoulder width. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498139025942-1454SY3519TGC6HC3NHN/stubox.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498306858438-BC68DQ3PWH59UWY21JTE/detectedPerson.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498139068572-91GM1H17LA6NQOXI4X8P/backgroundremoval.png Works I also explored methods for motion removal by detecting ORB features and applying shifts to segment people from background motion. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498387896858-TP2N2G0784P9GHN0CPMI/mibandsInBox.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498387898354-PLQO3529J7BJ8WXNAC5V/jinAndMiband.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498390919251-M673AEXORAEHMQPKPIFP/image-asset.jpeg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498390887179-2PJHPBTUXND6BNJFR3WR/IMG_0167.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498391100081-2I1I22YUPH1RW7XIAGQB/IMG_0152.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392834766-2RD8GPMXF1MTC9C8E0UW/IMG_0084.jpg Works - Prototype 1 https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392859772-PW6C25ELZ4EYWGXUQ6JC/IMG_0081.jpg Works Prototype 1 used PVC pipe that would blend in with the color of the first chair I used. One of the goals for the project was that the chair would remain "one with it's chair-ness." https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392813388-E60AO7U1CRJME11VJRFX/IMG_0082.jpg Works A different angle of Prototype 1 https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392769445-764SRWOKXF231IEA09H2/IMG_0085.jpg Works - Prototype 1, Mounted https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392754514-K6JMH9O2BJSKNF5XNZCI/IMG_0090.jpg Works For prototype 2, I moved the wheels to be in line with the chair legs. the rear legs were supported by casters mounted on PVC "shoes." https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392600692-PQXMW8L2PC1WWKMPXGMB/IMG_0161.jpg Works - Onboard Electronics Early testing of remote-control capabilities with the Raspberry Pi, Arduino, and simple motor circuit. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392702164-UGUMG6GMMW3ILYH4QXNK/IMG_0114.jpg Works - Onboard Electronics Raspberry Pi, Arduino, LiPo battery, https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392723775-WN9X5CD8AJAAP7NBVUJL/IMG_0091.jpg Works The chair supports the weight of a person - durability test #1 passed! https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392655755-UFU8QRNEYD2RNUZHRF39/IMG_0116.jpg Works For prototype 3, I decided to explore a different chair. The foldable Terje IKEA chair allowed me to mount directly onto the legs and control the height and angle of the rear casters and front skate wheels. The final design involved belt-driven solution as pictured. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498392651137-2EAYAVX1VM3310YW1GKF/IMG_0118.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/575c0a0c-7f88-42d6-8992-e377575cd168/trades+stuff.jpeg Works Our users were tapers and finishers, but they often had to contend with plumbers, electricians, carpenters, and many others on the job site. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/b429a6e4-064f-461b-a1ad-6b7360152820/Construction+Site.png Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1eee8a05-29d8-4d4d-a59e-f132b41c7b73/IMG_5714.jpg Works The initial lab testing area - pretty convincing. Or so we thought! https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/b65bc352-a63e-41b1-866f-0ffc88960021/IMG_5555.jpg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/cd1e57a8-c450-456a-927e-4bed7f9d9690/stuff.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/6a1f5544-9482-4e75-afd3-4de93231bdb6/IMG_5402.jpg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/c58757fb-23c3-4233-a0a9-dd0a3517d275/IMG_5471.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/61bcaf55-dd8a-482c-a075-ca7bc9765256/IMG_5480.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/51e7ed23-6593-4ffc-a0fb-6fe2b73568b5/IMG_5474.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/482a372b-a667-49df-850c-2fce64f6e9db/IMG_5477.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/269b4477-587b-42fa-9c80-49fd43f5737d/IMG_4838.jpg Works Brainstorming and affinity mapping different obstacles seen on site https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/afcc96d7-f598-4f6a-b9e8-9043604453d0/IMG_5397.jpg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/d56f8bf9-aba1-4ce4-bb33-d9aecba45393/plumber+stuff.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/487dcb75-4c64-4aa4-9a6d-59e87e0e9532/no+detections.jpeg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/215b18f6-26f4-47d9-8e5d-17ccbccb4e18/IMG_4685.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/da321600-4262-47d0-b4bd-7829c8fae216/Screen+Shot+2022-09-06+at+10.39.25+PM.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/172a9294-ed72-4d6d-b0ac-fae4b1dbecc9/joint+selection.png Works - Make it stand out While the image in this UI mockup does not reflect the diorama image accompanied here, the actual study featured images that were directly from the physical model that was created. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/29979ccd-5acc-4045-a242-d5d7ecfdf55b/drywall+joints+all.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/74b70a8c-c2e1-459d-b6d3-7c13029aff6e/joint+picker+no+tablet.png Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/a294fb95-263a-4fdb-a9d3-53b1f1ab328a/DC16.png Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/a1f89e44-97b4-4b0e-8c9d-f3aba7ebf11d/diarama.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/0f011ad0-a8a8-470f-be81-259d7013f51a/butt+joint.jpeg Works - Make it stand out “Factory Joints” are where the long edges of drywall sheets come together. Conversely, “Butt Joints” are where the short edges of drywall sheets join. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/93b3cde7-f036-4a38-b055-3e1dd2cffc0d/umuganda.jpeg Works - Make it stand out attending my first umuganda, Rwanda’s community service day, and learning the process of installing a floor firsthand - we unskilled laborers mostly shoveled gravel! https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/afac8779-0b3b-44bf-9a0f-b8d8c0097051/earthenable.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/cead723f-c32d-41fa-80f1-3944e3ca5c47/first+visit+eyes+open+EE.jpeg Works a photo of our first visit to the disgruntled customers :( https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/ba95ac67-b7fb-4e6b-8b92-c7c3fb7e99cd/fixing+floors.jpeg Works - Make it stand out Tradesmen (masons) repairing a long hairline crack in a customer’s home. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/7a9a9fa6-b42c-4152-a1d2-e97e9b7ccc0e/loading+sand.jpeg Works - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/b45b32ce-4ce7-4736-ad2b-eeb70d4860af/Screen+Shot+2022-09-07+at+10.43.54+AM.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498137424570-NR81ZQEN3T1G16ESIJ7H/IMG_1470.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498140713091-8PS6DKE1SKGBBG2QPPQL/IMG_0167.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498182760051-NP8MLWDCPLTZK9ZY8YBK/DSC_7206.JPG Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498301204897-BJR97XHLY1FICKVOO2R5/DSC_7414.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1460922384310-O7YVD6F4H0FC9IM5YHFR/Jin+ME203+Slide.jpg Works - Photo Tree https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1498393348665-O55S4DA9B4NBZ4V0F1NB/IMG_0167.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1499053477341-M7XRV3X3FPYRJM9C3ML6/mibandsInBox.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1499053518512-HZMEVPT2QEJIEJHMQDST/AlertBadgeSlide.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1499054318672-58SGMI8HZ2GEY8FK5AEE/stuAndCliffHSS.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1499054504286-QXU6MN70N7UH4ANOY0BT/DSC_7414.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1662510192492-LU47YNWC45VGMOJRTGFD/IMG_5714.jpg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1662511916693-LUDHOB5QF469S5RD9VQP/woz+movie+poster.jpeg Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1662535784412-LHUHHH2ZADG43PP7PSV2/joint+selection.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1662535842233-6PKQ0VFB19RN4XYPTAQR/Screen+Shot+2022-09-06+at+10.39.25+PM.png Works https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1662573542256-SS88PYL1WQIW05LAP5Y6/earthenable.png Works https://www.jinpark.me/wanders daily 0.75 2023-12-29 https://www.jinpark.me/wanders/2019/5/4/a-journey-in-retrospect monthly 0.5 2022-09-07 https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1556994489680-BSQE72W9RPG0UVOE2MDP/Sydney+Harbour.jpg Wanders - A Journey in Retrospect Sydney Harbour, where one journey ended and another began. https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1556993857336-5NIRVBNJ0I6P9I412GDD/UpperCaples.jpg Wanders - A Journey in Retrospect On an overnighter to Upper Caples Hut in Otago, New Zealand. Photo taken by my two itinerant German friends Conrad and Yalda. Pictured at top: Sydney Harbour by night. Where one adventure ended and another began. How cliché. That is indeed how time works. https://www.jinpark.me/wanders/2022/11/16/entering-the-wild-wonderful-world-of-climate-as-a-ux-researcher monthly 0.5 2022-11-16 https://www.jinpark.me/wanders/2023/3/7/wading-into-the-weeds-with-agtech-part-1-in-a-two-part-series monthly 0.5 2023-03-08 https://www.jinpark.me/wanders/2023/12/29/moving-to-substack monthly 0.5 2023-12-29 https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/b0c11b0c-fb3b-4cf6-b1ba-5db4cd27a64f/substack+logo.png Wanders - Moving to Substack - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.jinpark.me/about daily 0.75 2023-01-18 https://images.squarespace-cdn.com/content/v1/571138ebab48de0a14e46910/1556996593807-KSMCEEVK10UYC0A4RYDA/Jin.jpg About