-
公开(公告)号：US20200053270A1
公开(公告)日：2020-02-13
申请号：US16657343
申请日：2019-10-18
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xinyu Zhang , Chi Zhang , Shilin Zhu
Abstract: A visual privacy system unilaterally blocks rolling shutter cameras by providing a periodically interrupted ambient light source imposing bright and dark bands on the image yet at a frequency imperceptible to human observers in the environment. Communication of the modulation pattern to authorized cameras allows unaffected imaging in these regions by authorized individuals. The system also contemplates operation in a barcoding mode with a light modulation providing embedded barcodes that can be extracted from images taken in the region to indicate that the images were improperly acquired and to block the images in certain applications.
-
公开(公告)号：US10469763B2
公开(公告)日：2019-11-05
申请号：US15616386
申请日：2017-06-07
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xinyu Zhang , Chi Zhang , Shilin Zhu
Abstract: A visual privacy system unilaterally blocks rolling shutter cameras by providing a periodically interrupted ambient light source imposing bright and dark bands on the image yet at a frequency imperceptible to human observers in the environment. Communication of the modulation pattern to authorized cameras allows unaffected imaging in these regions by authorized individuals. The system also contemplates operation in a barcoding mode with a light modulation providing embedded barcodes that can be extracted from images taken in the region to indicate that the images were improperly acquired and to block the images in certain applications.
-
公开(公告)号：US11039028B2
公开(公告)日：2021-06-15
申请号：US16657343
申请日：2019-10-18
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xinyu Zhang , Chi Zhang , Shilin Zhu
Abstract: A visual privacy system unilaterally blocks rolling shutter cameras by providing a periodically interrupted ambient light source imposing bright and dark bands on the image yet at a frequency imperceptible to human observers in the environment. Communication of the modulation pattern to authorized cameras allows unaffected imaging in these regions by authorized individuals. The system also contemplates operation in a barcoding mode with a light modulation providing embedded barcodes that can be extracted from images taken in the region to indicate that the images were improperly acquired and to block the images in certain applications.
-
公开(公告)号：US20180359403A1
公开(公告)日：2018-12-13
申请号：US15616386
申请日：2017-06-07
Applicant: Wisconsin Alumni Research Foundation
Inventor： Xinyu Zhang , Chi Zhang , Shilin Zhu
Abstract: A visual privacy system unilaterally blocks rolling shutter cameras by providing a periodically interrupted ambient light source imposing bright and dark bands on the image yet at a frequency imperceptible to human observers in the environment. Communication of the modulation pattern to authorized cameras allows unaffected imaging in these regions by authorized individuals. The system also contemplates operation in a barcoding mode with a light modulation providing embedded barcodes that can be extracted from images taken in the region to indicate that the images were improperly acquired and to block the images in certain applications.
-
-
-
Search Results
4
records
(took 0.012 seconds)
