Infrared image guidance for ground vehicle based on fast wavelet image focusing and tracking

Wide and narrow dual image guidance system for ground vehicle on fast focusing and stereo matching operation

10.1117/12.893157 ◽

2011 ◽

Author(s):

Akira Akiyama ◽

Nobuaki Kobayashi ◽

Eiichiro Mutoh ◽

Hideo Kumagai ◽

Hiromitsu Ishii

Keyword(s):

Image Guidance ◽

Stereo Matching ◽

Guidance System ◽

Ground Vehicle ◽

Dual Image

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Infrared image-guidance for intraoperative assessment of limb length discrepancy during total hip arthroplasty procedures

Medical Imaging 2020: Image-Guided Procedures, Robotic Interventions, and Modeling ◽

10.1117/12.2548860 ◽

2020 ◽

Author(s):

Jerry Yan ◽

Akash Chaurasia ◽

Hannah Takasuka ◽

Aditi Jithendra ◽

Claire State ◽

...

Keyword(s):

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Image Guidance ◽

Infrared Image ◽

Limb Length Discrepancy ◽

Limb Length ◽

Total Hip ◽

Length Discrepancy ◽

Intraoperative Assessment

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Image-Guided Osteoplastic Frontal Sinusotomy

American Journal of Rhinology ◽

10.1177/194589240501900502 ◽

2005 ◽

Vol 19 (5) ◽

pp. 430-434 ◽

Cited By ~ 6

Author(s):

William Innis ◽

Patrick Byrne ◽

Ralph P. Tufano

Keyword(s):

Complication Rate ◽

Frontal Sinus ◽

Image Guidance ◽

Infrared Image ◽

Guidance System ◽

Computer Aided Surgery ◽

Image Guided ◽

Early Computer ◽

Computer Aided ◽

Standard Techniques

Background A 6-ft Caldwell radiograph template and transillumination, typically, are used to elucidate the frontal sinus outline for osteoplastic frontal sinusotomy (OFS). These techniques can be fraught with imprecision. The consequences of imprecise OFS may result in significant complications. Computer-aided surgery may offer a safe and accurate alternative to these techniques in selected cases. Several disadvantages were noted with early computer-aided assistance. Current infrared and electromagnetic systems have eliminated many of these disadvantages. We describe our technique and experience with an infrared image-guidance system (The LandmarX Evolution; Medtronic Xomed, Jacksonville, FL) to create a precise OFS that maximizes exposure while minimizing morbidity. Methods We describe the use of an infrared image guidance system, the LandmarX Evolution for OFS in three cases. Results The LandmarX Evolution allowed for accurate placement of the OFS in each of the three cases and successful treatment of two symptomatic frontal sinus osteomas and a recurrent inverted papilloma. No complications were encountered. Conclusion Image-guided OFS results in a confident and accurate entry into the frontal sinus. Image-guided OFS creation should be considered for select cases (i.e., complete opacification and altered anatomy) where performing an OFS by standard techniques may increase the complication rate. More experience with the technique and increased accessibility to image-guided equipment must be made possible before establishing this technique as a standard.

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The Technology of Digital Image Hiding Based on Discrete Wavelet Transform

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.740.718 ◽

2015 ◽

Vol 740 ◽

pp. 718-721

Author(s):

Hua Wei Pang

Keyword(s):

Wavelet Transform ◽

Discrete Wavelet Transform ◽

Digital Image ◽

Discrete Wavelet ◽

Original Image ◽

Image Hiding ◽

Fast Wavelet ◽

Information Image ◽

Carrier Image ◽

Wavelet Image

On the basis of researching wavelet transform, we give a fast wavelet image hiding algorithm. Wavelet transform coefficient of the carrier image will fusion the information image's, Then using inverse wavelet transform gets the original image. In order to improve the performance of anti-attack of the hidden image, before hiding information image we do the scrambling operation. Experimental results show that the scrambling algorithm and hiding algorithm combines not only further enhance the security of the hidden system and robustness has also been enhanced.

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