Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Soon-kak Kwon"'
Publikováno v:
Applied Sciences, Vol 14, Iss 8, p 3319 (2024)
In this paper, we propose a proximity-based adaptive positioning algorithm to address the challenge of positioning errors in indoor localization based on RSSI (received signal strength indicator). When positioning by trilateration, if a receiver is c
Externí odkaz:
https://doaj.org/article/a492f26ad6744035bda98f9af42533d5
Autor:
Dong-seok Lee, Soon-kak Kwon
Publikováno v:
Sensors, Vol 24, Iss 7, p 2044 (2024)
In this paper, we propose an amount estimation method for food intake based on both color and depth images. Two pairs of color and depth images are captured pre- and post-meals. The pre- and post-meal color images are employed to detect food types an
Externí odkaz:
https://doaj.org/article/c57d0dcbfdc2499296025753d763cf28
Publikováno v:
Applied Sciences, Vol 13, Iss 9, p 5742 (2023)
This paper proposes a method to classify food types and to estimate meal intake amounts in pre- and post-meal images through a deep learning object detection network. The food types and the food regions are detected through Mask R-CNN. In order to ma
Externí odkaz:
https://doaj.org/article/c57bede23aa641ad9b2d91a8f4f5b988
Publikováno v:
IEEE Access, Vol 9, Pp 29153-29164 (2021)
In this article, we propose a depth data coding method by plane modeling. The plane modeling is a prediction method based on a plane estimation from depth pixels in a block. The plane modeling improves the intra-picture prediction for depth data comp
Externí odkaz:
https://doaj.org/article/e5f9c23c60dc4d3da5f58ae0570f4479
Autor:
Soon-kak Kwon, Dong-seok Lee
Publikováno v:
EURASIP Journal on Image and Video Processing, Vol 2020, Iss 1, Pp 1-13 (2020)
Abstract In this paper, two methods of zoom motion estimation for color and depth videos by using depth information are proposed. Color and depth videos are independently estimated for zoom motion. Zoom for color video is scaled by spatial domain, an
Externí odkaz:
https://doaj.org/article/5e241df3db4d427ba855009881a5794d
Autor:
Dong-seok Lee, Soon-kak Kwon
Publikováno v:
Sensors, Vol 22, Iss 24, p 9656 (2022)
In this paper, we propose an intra-picture prediction method for depth video by a block clustering through a neural network. The proposed method solves a problem that the block that has two or more clusters drops the prediction performance of the int
Externí odkaz:
https://doaj.org/article/0643b3f97f084f05a5c3597d1826f102
Publikováno v:
Applied Sciences, Vol 10, Iss 16, p 5531 (2020)
In this study, an estimation method for human height is proposed using color and depth information. Color images are used for deep learning by mask R-CNN to detect a human body and a human head separately. If color images are not available for extrac
Externí odkaz:
https://doaj.org/article/c37534fd73ae4f8688c45204f67d881e
Autor:
Dong-seok Lee, Soon-kak Kwon
Publikováno v:
Sensors, Vol 19, Iss 4, p 885 (2019)
In this paper, a virtual touch sensor using a depth camera is proposed. Touch regions are detected by finding each region that consists of pixels within a certain distance from a touch surface. Touch points are detected by finding a pixel in each tou
Externí odkaz:
https://doaj.org/article/b6dae11722e94423ae5a69ce69b4f905
Autor:
Dong-seok Lee, Soon-kak Kwon
Publikováno v:
Symmetry, Vol 10, Iss 12, p 715 (2018)
In this paper, an intra prediction method is proposed for coding of depth pictures using plane modelling. Each pixel in the depth picture is related to the distance from a camera to an object surface, and pixels corresponding to a flat surface of an
Externí odkaz:
https://doaj.org/article/f0466d116bd242b98109ba60e63f824f
Publikováno v:
Journal of Multimedia Information System. 9:253-260
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c97d005dc7dbb1a4ac5e313a23252fd
https://doi.org/10.33851/jmis.2022.9.4.253
https://doi.org/10.33851/jmis.2022.9.4.253