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홍차넷
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질문
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- 질문 게시판입니다.
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Warning: Use of undefined constant use_category - assumed 'use_category' (this will throw an Error in a future version of PHP) in /home/redtea/html/pb/include/print_category.php on line 9
전체기타게임진로연애가정/육아체육/스포츠교육의료/건강철학/종교IT/컴퓨터여행과학문화/예술법률홍차넷경제
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| Date |
Warning: Use of undefined constant reg_date - assumed 'reg_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 53 18/05/16 11:06:49 Warning: Use of undefined constant mod_date - assumed 'mod_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 56 |
| Name | Uboy |
| Subject | 적외선이 카메라에 끼치는 영향에 대해서.. |
|
적절한 카테고리가 없어서 과학으로... 최근 몰래카메라로 인해 이야기가 많습니다. 그러면 어떻게 몰래카메라를 방지할까 라는 궁금증이 생겨서 검색을 조금 해보았더랍니다. 카메라에 영향을 줄 수 있는 2가지 방안이 인터넷에 떠돌고 있었는데요. 하나는 레이저를 직접 조사하여 카메라에 손상을 주는 방법이었고, 다른 하나는 적외선 영역의 빛을 이용해 영상에 영향을 주는 방법이 있다네요. 레이저야 당연히 물리적으로 손상을 입힐 정도의 에너지가 전달되므로 그러려니 합니다. 그런데 적외선이 영상에 영향을 준다는 것은 반신반의하네요... 심지어는 cct 영상에 영향을 끼칠 수 있다는 식의 인터넷 괴담까지 돌아다니는지라 더더욱 신뢰가 안갑니다. 혹시 IR LED를 일반 카메라로 촬영하면 영상에 영향이 있나요? Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 133 Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 146 Warning: Use of undefined constant vote - assumed 'vote' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view.php on line 161 0 이 게시판에 등록된 Uboy님의 최근 게시물 |
|
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Warning: Use of undefined constant ismember - assumed 'ismember' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 6
Warning: Use of undefined constant file_name - assumed 'file_name' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 28
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39853 class="iamcmt" style="display:none;"> Warning: Use of undefined constant no - assumed 'no' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 66
39853 class='vcm '>
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39853'> 보이차
Warning: Use of undefined constant mod_date - assumed 'mod_date' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 133
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18/05/16 12:58
39853>삭제 주소복사
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 150
질문을 다시 읽어보니 간단한 질문이었네요... 길게 적었다가 다시 줄입니다;;
(1) 일반 카메라의 경우 보통 별 영향이 없으나 센서 전면부의 IR필터를 제거하는 경우 영향을 줄 수 있음
(2) CCTV 카메라의 경우 야간을 위해 IR 영역도 촬영하는 경우가 많아 거의 100% 영향이 있다고 볼 수 있음
입니다.
(3) 저희가 쉽게 테스트 해 볼 수 있는 폰 카메라의 경우에도 IR 조명 켜놓고 카메라 앱 켜서 조명을 찍으면 아마 해당 부분이 밝게 나올 겁니다.
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 158
Warning: Use of undefined constant password - assumed 'password' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 166
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(1) 일반 카메라의 경우 보통 별 영향이 없으나 센서 전면부의 IR필터를 제거하는 경우 영향을 줄 수 있음
(2) CCTV 카메라의 경우 야간을 위해 IR 영역도 촬영하는 경우가 많아 거의 100% 영향이 있다고 볼 수 있음
입니다.
(3) 저희가 쉽게 테스트 해 볼 수 있는 폰 카메라의 경우에도 IR 조명 켜놓고 카메라 앱 켜서 조명을 찍으면 아마 해당 부분이 밝게 나올 겁니다.
Warning: Use of undefined constant level - assumed 'level' (this will throw an Error in a future version of PHP) in /home/redtea/html/a_skin/bbsd/view_comment.php on line 158
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39853>
39853>
