Sangjun Lee

Sang Jun Lee

Image

Why not change the world?
I sincerely want to change the world using my techniques and technologies
with my creative heart and full enthusiasm.

SLAM algorithm engineer, Visual Positioning Team, Parking Group, StradVision

eowjd4@naver.com

https://www.linkedin.com/in/eowjd0512/

Research interests

Visual SLAM, Optimization, CV, CG, Deep Learning, Machine Learning, AR, Autonomous Driving Car, Robotics

Education and Employments

Publications

International Journal

SCI SCIE

  1. Sang Jun Lee, Sung Soo Hwang, “Fast and Accurate Self-calibration using Vanishiing Point Detection in Manmade Environments”, International Journal of Car, Autonomous, and System, 2019. PDF

  2. Sang Jun Lee, Hee-youl Choi, Sung Soo Hwang, “Real-time Depth Estimation using Recurrent CNN with Sparse Depth Cues for SLAM System”, International Journal of Car, Autonomous, and System, 2019. PDF

  3. Sang Jun Lee, Sung Soo Hwang, “Bag of Sampled Words: A Sampling-based Strategy for Fast and Accurate Visual Place Recognition in Changing Environments”, International Journal of Car, Autonomous, and System, 2019. PDF

  4. Jin Kyu Lee, Myunk Cheol Kim, Sang Jun Lee, Sung Soo Hwang, “Real-Time Downward View Generation of a Vehicle Using Around View Monitor system”, IEEE Transactions on Intelligent Transportation Systems, 2019. PDF

International Conference

IEEE

  1. Sang Jun Lee, Deokhwa Kim, Sung Soo Hwang, Donghwan Lee, “Local to Global: Efficient Visual Localization for a Monocular Camera”, IEEE, WACV, 2021. PDF , supp. PDF

  2. Sang Jun Lee, Sung Soo Hwang, “elaborate monocular point-line slam with robust initialization”, IEEE, International Conference on Computer Vision, 2019. PDF

  3. Sang Jun Lee, Sung Soo Hwang, “Fast and Robust Vanishing Point Detection On Un-calibrated Images”, IEEE, International Conference on Image Processing, 2018. PDF

Domestic Journal

KCI
  1. Sang Jun Lee, Su Bin Kim and Sung Soo Hwang, “A Multi 3D Objects Augmentation System Using Rubik’s Cube,” Journal of Korea Multimedia Society, Vol. 20, No. 8, pp. 1224~1235, 2017.
IEEK
  1. Jae-Won Kam, Han-Sol Kim, Sang Jun Lee, and Sung-Soo Hwang “Robust and Fast Collaborative Augmented Reality Framework Based on Monocular SLAM, IEEK Transactions on Smart Processing and Computing, vol. 1, no. 1, July 2020.

Domestic Conference

  1. Sang Jun Lee, Sung Soo Hwang, “아웃라이어에 강인한 가우시안 매핑 기반 선분 병합 방법”, IPIU, 2018.

  2. Sang Jun Lee, Su Bin Kim and Sung Soo Hwang, “A Reliable Line Detection Algorithm Using Clustering and Strongly Connected Graph,” 한국정보과학회 학술발표논문집, , pp. 1979~1981, 2017.

  3. 한현민, 강세희, 김빛나, 이민회, 이상준, 문지원, 김휘용, 방건, 황성수, “Multi-view consistency와 시점 별 우선 순위 부여를 통한 정제된 포인트 클라우드 생성 기법”, 대한전자공학회, 2019.

  4. 조영곤, 이보배, 김현준, 이상준, 황성수 “단안카메라를 활용한 종이피아노 시스템”, 대한전자공학회, 2019.

  5. Jae Won Kam, Han Sol Kim, Sang Jun Lee, Sung Soo Hwang, “다수 Monocular SLAM 영상 지도에 대한 융합 기법”, IPIU, 2019.

  6. Davin Baik, Seongjin Lee, Sangyeon Choi, Sang Jun Lee and Sungsoo Hwang, “서버/클라이언트를 통신을 통한 영상 인식 기반 위치인식 시스템”, 대한전자공학회, 2018.

  7. Davin Baik, Seongjin Lee, Sangyeon Choi, Sang Jun Lee and Sung Soo Hwang, “Interactive Mobile Augmented Reality System Using Muscle Sensor,” 한국HCI학회 학술대회, , pp. 753~756, 2018.

  8. Su bin Kim, Dero Bae, Sang Jun Lee, Dabin Sin and Sung Soo hwang, “A Study on Providing Resource-efficient Information Interface Utilizing Augmented Reality,” 한국HCI학회 학술대회, , pp. 657~660, 2017.

Master thesis

  1. Sang Jun Lee, “All Aboust Visual SLAM”, Handong Global University, 2019.

Awards

  1. Start-up competition 1st prize(2015. 10) - Ji Woong Song, and Sang Jun Lee, “영상처리를 이용한 빠른 옷 검색 서비스”, Handong Global University.

  2. Best paper award Sang Jun Lee, Sung Soo Hwang, “아웃라이어에 강인한 가우시안 매핑 기반 선분 병합 방법”, IPIU, 2018.

  3. Best paper award Sang Jun Lee, Su Bin Kim and Sung Soo Hwang, “A Reliable Line Detection Algorithm Using Clustering and Strongly Connected Graph,” 한국정보과학회 학술발표논문집 , pp. 1979~1981, 2017.

Patents

  1. [등록] 이상준, 김수빈, 황성수, “루빅스 큐브를 이용한 증강현실 제공 방법”, Korea, KR101900797B1.

  2. [등록] 감제원, 김한솔, 문지원, 이상준, 황성수, 증강현실 게임북을 이용한 멀티유저 증강현실 컨텐츠 제공 시스템 및 방법,Korea, KR102099852B1.

  3. [등록] 감제원, 김한솔, 문지원, 이상준, 황성수, SLAM 공간 지도의 완성도 판단 방법, Korea, KR102084756B1.

  4. [등록] 감제원, 김한솔, 문지원, 이상준, 황성수, 멀티마커 기반의 증강현실 시스템의 카메라 자세 추정, Korea, KR102090533B1.

Research Experiences

  1. Research assistant, 3DoF+ 360도 비디오 부호화 포맷 변환을 통한 부호화 성능 개선 연구, ETRI 2018. 07. ~ 2018. 11.

  2. Research assistant, Vadas 2018. 01. ~ 2018. 09.

  3. Research assistant, 빠른 위치 인식 및 정밀한 지형 복원을 위한 다중 정밀도 3차원 영상 지도 생성 기법에 대한 연구 2016. 11. ~ 2019. 06.

  4. Research assistant, 스마트 웨어러블 디바이스 및 감성 서비스 어플리케이션 개발 2016. 01. ~ 2018. 02.

  5. Research assistant, 빔 프로젝터를 통해 투사된 영상과 사용자간의 상호작용을 인식하는 시스템 개발 2016. 01. ~ 2016. 12.

  6. Developer, 사파리고 증강현실 어플리케이션 개발 2016. 09. ~ 2016. 11.

  7. Research assistant, 자동 유닛-테스트 생성기법을 활용한 소프트웨어 성능결함 검출 2015. 11. ~ 2016. 11.

  8. animator 표면개질용 125J-HZ급 레이저 개발 2015. 06. ~ 2017. 06.

Teaching Experiences

  1. Instructor, Deep learning in SLAM, AI group, Deepest, Seoul National University (2020, 05, 16)

  2. Instructor, CG modeling and texturing, Gift Sharing, HanDong Education Development Institute(2016. 01, 2017. 01)

  3. Teaching assistant, 제4차 서울IoT워크숍 opencv, 서울산업진흥원, 서울IoT센터, 2018. 07. ~ 2018. 07.

  4. Teaching assistant, AR Camp, CS, HGU, 2017. 07. ~ 2017. 07.

  5. Teaching assistant, OpenCV Camp, CS, HGU, 2017. 01. ~ 2017. 01.

  6. Teaching assistant, Multimedia Image Processing, CS, HGU, 2018. 09. ~ 2018. 12.

  7. Teaching assistant, Multimedia Image Processing, CS, HGU, 2017. 09. ~ 2017. 12.

  8. Teaching assistant, Multimedia Image Processing, CS, HGU, 2016. 09. ~ 2016. 12.

Skills

Programming Language C++, C, Python, MATLAB, linux
OpenSource LIBRARY OpenCV, OpenGL, Eigen, Vlfeat, PCL, g2o …
Technical TOOLS Maya, Photoshop, Illustrator, After Effect, Unity3D
Experiments Kinect, Nuke, Zbrush

Activities

  1. Research assistant for CGVLAB(Computer Vision and Graphics Laboratory) (2015. 09~ 2019.07)

  2. president of Handong VR group for generating own college virtual world(2015. 03~ 2016. 12)

  3. teacher for dance(poppin), artschool in handong global university(2015. 09 ~ 2016. 12)

  4. dancer on dancing group ‘zizzy’ on handong global university(2012. 09~ present)

  5. talent competition 3rd prize(2015. 05, dance) and 2nd prize(2016.05, dance as leader) on handong festival

  6. choreographer of musical team and instructor of worship dance team on Bupyeong Methodist Church(2014. 03. ~ 2014. 12)

  7. certification of 3D animiation & Visual Effect Course, SF Film School(school of VFX) (2014. 03 ~ 2014. 12)

  8. learned product design by minor(2013.03~ 2014.02)