Abstract
Most auto-focusing algorhythms based on focus values which are calculated with high frequency image components are very sensitive to noise factor. The noise under low illumaination conditions generally degrades the auto-focusing performance. In this paper, we propose an operator to determine the noise insensitive focus value for digital imaging systems. The proposed algorhithm uses spatially adapted weights based on the local statistics of the image and the noise factors. Experiments conducted with and without noise factors demonstrate the high performance of the proposed method.
| Original language | English |
|---|---|
| Article number | 5505933 |
| Pages (from-to) | 312-316 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Consumer Electronics |
| Volume | 56 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2010 May 1 |
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All Science Journal Classification (ASJC) codes
- Media Technology
- Electrical and Electronic Engineering
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Noise insensitive focus value operator for digital imaging systems. / Choi, Jongseong; Kang, Hee; Lee, Chang Min; Kang, Moon Gi.
In: IEEE Transactions on Consumer Electronics, Vol. 56, No. 2, 5505933, 01.05.2010, p. 312-316.Research output: Contribution to journal › Article
TY - JOUR
T1 - Noise insensitive focus value operator for digital imaging systems
AU - Choi, Jongseong
AU - Kang, Hee
AU - Lee, Chang Min
AU - Kang, Moon Gi
PY - 2010/5/1
Y1 - 2010/5/1
N2 - Most auto-focusing algorhythms based on focus values which are calculated with high frequency image components are very sensitive to noise factor. The noise under low illumaination conditions generally degrades the auto-focusing performance. In this paper, we propose an operator to determine the noise insensitive focus value for digital imaging systems. The proposed algorhithm uses spatially adapted weights based on the local statistics of the image and the noise factors. Experiments conducted with and without noise factors demonstrate the high performance of the proposed method.
AB - Most auto-focusing algorhythms based on focus values which are calculated with high frequency image components are very sensitive to noise factor. The noise under low illumaination conditions generally degrades the auto-focusing performance. In this paper, we propose an operator to determine the noise insensitive focus value for digital imaging systems. The proposed algorhithm uses spatially adapted weights based on the local statistics of the image and the noise factors. Experiments conducted with and without noise factors demonstrate the high performance of the proposed method.
UR - http://www.scopus.com/inward/record.url?scp=77954700017&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954700017&partnerID=8YFLogxK
U2 - 10.1109/TCE.2010.5505933
DO - 10.1109/TCE.2010.5505933
M3 - Article
VL - 56
SP - 312
EP - 316
JO - IEEE Transactions on Consumer Electronics
JF - IEEE Transactions on Consumer Electronics
SN - 0098-3063
IS - 2
M1 - 5505933
ER -