Restoration of images degraded by extreme mechanical vibrations
A method of numerically calculating the optical transfer function appropriate to any type of image motion and vibration, including random, has been recently developed. This method has been verified experimentally with real vibrations, and the close agreement justifies implementation in image restora...
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| Veröffentlicht in: | Optics and laser technology 1997-06, Vol.29 (4), p.171-177 |
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| container_end_page | 177 |
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| container_issue | 4 |
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| container_title | Optics and laser technology |
| container_volume | 29 |
| creator | Hadar, O. Adar, Z. Cotter, A. Kopeika, N.S. |
| description | A method of numerically calculating the optical transfer function appropriate to any type of image motion and vibration, including random, has been recently developed. This method has been verified experimentally with real vibrations, and the close agreement justifies implementation in image restoration from blur deriving from any type of image motion, including random displacement. Here, image restorations of actual physically degraded images are presented, based on a constrained least squares improvement of the original Wiener filter. Even for extreme vibrations where the blur extent is much larger than the blurred detail, restoration is quite complete. The key to restoration is the determination of the optical transfer function unique to the particular image motion and vibration causing the blur. Results are also presented for low vibration frequency motion of random blur extent, as well as for high vibration frequencies. |
| doi_str_mv | 10.1016/S0030-3992(97)00002-9 |
| format | Article |
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This method has been verified experimentally with real vibrations, and the close agreement justifies implementation in image restoration from blur deriving from any type of image motion, including random displacement. Here, image restorations of actual physically degraded images are presented, based on a constrained least squares improvement of the original Wiener filter. Even for extreme vibrations where the blur extent is much larger than the blurred detail, restoration is quite complete. The key to restoration is the determination of the optical transfer function unique to the particular image motion and vibration causing the blur. 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This method has been verified experimentally with real vibrations, and the close agreement justifies implementation in image restoration from blur deriving from any type of image motion, including random displacement. Here, image restorations of actual physically degraded images are presented, based on a constrained least squares improvement of the original Wiener filter. Even for extreme vibrations where the blur extent is much larger than the blurred detail, restoration is quite complete. The key to restoration is the determination of the optical transfer function unique to the particular image motion and vibration causing the blur. Results are also presented for low vibration frequency motion of random blur extent, as well as for high vibration frequencies.</description><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Image forming and processing</subject><subject>image restoration optomechanics</subject><subject>Imaging and optical processing</subject><subject>motion</subject><subject>optical transfer function</subject><subject>Optics</subject><subject>Physics</subject><subject>vibrations</subject><issn>0030-3992</issn><issn>1879-2545</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhYMoWKs_QZiFiC5G85hMJqsixRcUBB_rcCe5UyPtTE2mxf5701a69W7u5jv33HMIOWf0hlFW3r5RKmgutOZXWl3TNDzXB2TAKqVzLgt5SAZ75JicxPiVmKKUYkBGrxj7LkDvuzbrmszPYYoxczgN4NBl9TrDnz7gHLM52k9ovYVZtvL1ThJPyVEDs4hnf3tIPh7u38dP-eTl8Xl8N8mtKFWfM2Z5oZymChBRN5yXAEAZMBBFCTXlyKHEwiGtWe2craywqpASrKy0KMSQXO7uLkL3vUw_m7mPFmczaLFbRsOV4KWsZALlDrShizFgYxYhhQprw6jZ1GW2dZlNF0Yrs63L6KS7-DOAmCI2AVrr417MVSU4Ewkb7TBMYVceg4nWY2vR-YC2N67z_xj9Ap0PfvU</recordid><startdate>19970601</startdate><enddate>19970601</enddate><creator>Hadar, O.</creator><creator>Adar, Z.</creator><creator>Cotter, A.</creator><creator>Kopeika, N.S.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>19970601</creationdate><title>Restoration of images degraded by extreme mechanical vibrations</title><author>Hadar, O. ; Adar, Z. ; Cotter, A. ; Kopeika, N.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-11c247d907aeee9f226aaa01a1a346ab02e2a6e4de0b1bddc8c3c7455ac589343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Image forming and processing</topic><topic>image restoration optomechanics</topic><topic>Imaging and optical processing</topic><topic>motion</topic><topic>optical transfer function</topic><topic>Optics</topic><topic>Physics</topic><topic>vibrations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hadar, O.</creatorcontrib><creatorcontrib>Adar, Z.</creatorcontrib><creatorcontrib>Cotter, A.</creatorcontrib><creatorcontrib>Kopeika, N.S.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Optics and laser technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hadar, O.</au><au>Adar, Z.</au><au>Cotter, A.</au><au>Kopeika, N.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Restoration of images degraded by extreme mechanical vibrations</atitle><jtitle>Optics and laser technology</jtitle><date>1997-06-01</date><risdate>1997</risdate><volume>29</volume><issue>4</issue><spage>171</spage><epage>177</epage><pages>171-177</pages><issn>0030-3992</issn><eissn>1879-2545</eissn><coden>OLTCAS</coden><abstract>A method of numerically calculating the optical transfer function appropriate to any type of image motion and vibration, including random, has been recently developed. 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| issn | 0030-3992 1879-2545 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Exact sciences and technology Fundamental areas of phenomenology (including applications) Image forming and processing image restoration optomechanics Imaging and optical processing motion optical transfer function Optics Physics vibrations |
| title | Restoration of images degraded by extreme mechanical vibrations |
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