公开(公告)号：US12013662B2

公开(公告)日：2024-06-18

申请号：US17523197

申请日：2021-11-10

Applicant: Electronics and Telecommunications Research Institute ,  MVTECH

Inventor： Jae-Eun Pi ,  Yong Hae Kim ,  Jong-Heon Yang ,  Chul Woong Joo ,  Chi-Sun Hwang ,  Ha Kyun Lee ,  Seung Youl Kang ,  Gi Heon Kim ,  Joo Yeon Kim ,  Hee-ok Kim ,  Jeho Na ,  Jaehyun Moon ,  Won Jae Lee ,  Seong-Mok Cho ,  Ji Hun Choi

IPC: G03H1/22 ,  G01B11/02 ,  G06T7/536

CPC classification number: G03H1/2249 ,  G01B11/026 ,  G06T7/536 ,  G03H2001/2281 ,  G03H2210/30 ,  G03H2222/12 ,  G03H2223/19 ,  G06T2207/10028

Abstract: An apparatus which analyses a depth of a holographic image is provided. The apparatus includes an acquisition unit that acquires a hologram, a restoration unit that restores a three-dimensional holographic image by irradiating the hologram with a light source, an image sensing unit that senses a depth information image of the restored holographic image, and an analysis display unit that analyzes a depth quality of the holographic image, based on the sensed depth information image, and the image sensing unit uses a lensless type of photosensor.

公开(公告)号：US10019807B1

公开(公告)日：2018-07-10

申请号：US15832738

申请日：2017-12-05

Applicant: MVTECH CO., LTD.

Inventor： Ki Sun Kwon ,  Jong Hyun Song

IPC: G06K9/64 ,  G06T7/32

CPC classification number: G06T7/32 ,  G06T7/11

Abstract: A method and device for detecting connected pixels in a two-dimensional (2D) image having a plurality of pixels each having X-Y coordinates may compare an upper-row pixel included in a Yth row with a lower-row pixel included in a Y+1th row depending on a comparison condition, wherein Y is a positive integer, and wherein when a difference in X coordinate between the upper-row pixel and the lower-row pixel is one or less, the upper-row pixel and the lower-row pixel are determined to be positioned adjacent each other, and when the difference in X coordinate is two or more, the upper-row pixel and the lower-row pixel are determined to be spaced apart from each other and update an index map that defines a relationship between index numbers of adjacent pixels depending on the determination to set pixels with the same or associated index number in the same pixel group.

公开(公告)号：US20220179359A1

公开(公告)日：2022-06-09

申请号：US17523197

申请日：2021-11-10

Applicant: Electronics and Telecommunications Research Institute ,  MVTECH

Inventor： Jae-Eun PI ,  Yong Hae KIM ,  Jong-Heon YANG ,  Chul Woong JOO ,  Chi-Sun HWANG ,  HA KYUN LEE ,  Seung Youl KANG ,  Gi Heon KIM ,  Joo Yeon KIM ,  Hee-ok KIM ,  Jeho NA ,  Jaehyun MOON ,  Won Jae LEE ,  Seong-Mok CHO ,  Ji Hun CHOI

IPC: G03H1/22 ,  G01B11/02 ,  G06T7/536

Abstract: Disclosed is an apparatus of analyzing a depth of a holographic image according to the present disclosure, which includes an acquisition unit that acquires a hologram, a restoration unit that restores a three-dimensional holographic image by irradiating the hologram with a light source, an image sensing unit that senses a depth information image of the restored holographic image, and an analysis display unit that analyzes a depth quality of the holographic image, based on the sensed depth information image, and the image sensing unit uses a lensless type of photosensor.

公开(公告)号：US20160209808A1

公开(公告)日：2016-07-21

申请号：US14996527

申请日：2016-01-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  MVTECH

Inventor： Chunwon BYUN ,  Jae-Eun PI ,  Yong Hae KIM ,  HAKYUN LEE ,  Chi-Sun HWANG

IPC: G03H1/22 ,  G03H1/08

CPC classification number: G03H1/2294 ,  G02F1/13 ,  G03H2001/0224 ,  G09G3/003 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/0297 ,  G09G2320/0223

Abstract: A holographic display apparatus includes a light source unit, a spatial light modulator, and a spatial light modulator control circuit for controlling the spatial light modulator, the spatial light modulator control circuit including a data driving circuit for providing a data voltage to a signal line, a demultiplexer circuit which includes a plurality of switching elements connected to the signal line and sequentially turned on, and transfers the data voltage to a transfer line through a turned-on switching element among the switching elements, and a first element connected between the transfer line and a data line, passing a current flowing from the transfer line to the data line, and blocking a current flowing from the data line to the transfer line.

Abstract translation: 全息显示装置包括光源单元，空间光调制器和用于控制空间光调制器的空间光调制器控制电路，该空间光调制器控制电路包括用于向信号线提供数据电压的数据驱动电路， 解复用器电路，其包括连接到所述信号线并顺序导通的多个开关元件，并且通过所述开关元件之间的导通开关元件将所述数据电压传送到传输线;以及连接在所述传输线 以及数据线，使从传输线流向数据线的电流，以及阻止从数据线流向传送线的电流。