公开(公告)号：US10535142B2

公开(公告)日：2020-01-14

申请号：US15864279

申请日：2018-01-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Yong Kim ,  Jang Woon Baek ,  Yun Su Chung ,  Yun Won Choi

IPC: G06K9/00 ,  G06T7/194 ,  G06T7/136 ,  G06T7/60 ,  G06T7/12 ,  G06T7/143 ,  G06T7/13

Abstract: Provided is a method of separating a foreground and a background by extracting a depth image through a stereo camera, generating an occupancy grid map on the basis of the depth image, predicting a free space, and computing a membership value, the method including setting a threshold value of a foreground object existing in a free space boundary region of the predicted free space, determining whether the membership value reaches the threshold value of the foreground object while the membership value is computed, terminating the computing of the membership value when it is determined that the membership value being computed reaches the threshold value of the foreground object in the determining, and separating a foreground and a background through the computed membership value.

公开(公告)号：US20150143010A1

公开(公告)日：2015-05-21

申请号：US14270631

申请日：2014-05-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeong Ho SON ,  Yun Won Choi

IPC: G06F13/24

CPC classification number: G06F13/24

Abstract: In a real-time embedded system, if a higher-level interrupt having a higher priority than a lower-level interrupt being processed occurs, the lower-level interrupt is stopped from being processed and the higher-level interrupt is processed. Upon completion of the processing of the higher-level interrupt, delay information about the lower-level interrupt is recorded in a compensation timer register corresponding to the lower-level interrupt, and when the processing is stopped, the lower-level interrupt is restarted. Upon completion of the processing of the lower-level interrupt, the next period of the lower-level interrupt is adjusted based on the delay information recorded in the compensation timer register to compensate for the delay.

Abstract translation: 在实时嵌入式系统中，如果具有比正在处理的较低级别中断更高优先级的更高级别的中断，则下级中断将被停止处理，并且处理较高级别的中断。 在完成上级中断处理完成后，关于下位中断的延迟信息被记录在与下级中断相对应的补偿定时器寄存器中，当处理停止时，下级中断重新启动。 在完成下级中断处理后，根据记录在补偿定时器寄存器中的延迟信息来调整下一级中断的下一个周期以补偿延迟。

公开(公告)号：US12026231B2

公开(公告)日：2024-07-02

申请号：US17497771

申请日：2021-10-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Joon Goo Lee ,  Jang Woon Baek ,  Kil Taek Lim ,  Yun Won Choi ,  Byung Gil Han

IPC: G06K9/00 ,  G06F18/21 ,  G06T7/194 ,  G06V20/52

CPC classification number: G06F18/217 ,  G06T7/194 ,  G06V20/52 ,  G06T2207/10024 ,  G06T2207/20036 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/30232

Abstract: Provided is a method of creating a local database for local optimization of an object detector based on a deep neural network. The method includes performing preprocessing on an image extracted from real-time collected or pre-collected images from an edge device, modeling a static background image based on the image received through the pre-processing unit and calculating a difference image between a current input image and a background model to model a dynamic foreground image, detecting an object image from the image based on a training model, and creating a local database based on the background image, the foreground image synthesized with the background image, and the object image synthesized with the background image.

公开(公告)号：US20180197295A1

公开(公告)日：2018-07-12

申请号：US15864279

申请日：2018-01-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Yong KIM ,  Jang Woon Baek ,  Yun Su Chung ,  Yun Won Choi

IPC: G06T7/194 ,  G06T7/136 ,  G06T7/60 ,  G06T7/12 ,  G06T7/13 ,  G06T7/143

CPC classification number: G06T7/194 ,  G06T7/12 ,  G06T7/13 ,  G06T7/136 ,  G06T7/143 ,  G06T7/593 ,  G06T7/60 ,  G06T2207/10012 ,  G06T2207/10028 ,  G06T2207/20076 ,  G06T2207/30261

Abstract: Provided is a method of separating a foreground and a background by extracting a depth image through a stereo camera, generating an occupancy grid map on the basis of the depth image, predicting a free space, and computing a membership value, the method including setting a threshold value of a foreground object existing in a free space boundary region of the predicted free space, determining whether the membership value reaches the threshold value of the foreground object while the membership value is computed, terminating the computing of the membership value when it is determined that the membership value being computed reaches the threshold value of the foreground object in the determining, and separating a foreground and a background through the computed membership value.