Image processing for pediatric strabismus

By R. A. / 12/03/2017 / RSIP Vision Learns / No Comments

Strabismus is a disorder in which the eyes are not properly aligned and point to different directions. When this happens, the “straighter” eye becomes more dominant and the weaker eye does not focus properly. Eventually, the brain ignores input from the weaker eye; this disorder is called amblyop...

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ROP: Retinopathy of Prematurity

By R. A. / 08/03/2017 / RSIP Vision Learns / No Comments

Retinopathy of prematurity (ROP) is a leading cause of blindness in infants. ROP (or Terry syndrome) is a disease of the eye affecting prematurely-born, low birthweight infants having received intensive neonatal care which includes oxygen therapy. Oxygen toxicity causes abnormal growth of retinal...

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Object tracking in videos

By R. A. / 06/03/2017 / RSIP Vision Learns / No Comments

Object tracking in videos is a classical computer vision problem. It consists of not only detecting the object in a scene but also recognizing the object in each and every frame, so as to distinguish it from other objects, both static and dynamic. Many tracking algorithms have been proposed in th...

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Eyelid Drooping – Blepharoptosis

By R. A. / 05/03/2017 / RSIP Vision Learns / No Comments

Blepharoptosis, also known as ptosis, is a drooping of the upper eyelid causing a narrowing of the palpebral fissure (or palpebral aperture), which is the opening between the eye lids. Eyelid drooping may result from any affection of the nerve supply of the upper eyelid musculature, from a diseas...

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Validation of accuracy in navigation systems

By R. A. / 28/02/2017 / RSIP Vision Learns / No Comments

System validation of accuracy is an offline procedure performed periodically to confirm that the tracking system is accurate. In some cases, validation of accuracy can be performed as an ASTM (American Society for Testing and Materials) testing procedure. The testing involves a standard jig assem...

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Navigation System in Orthopedic Surgery

By R. A. / 27/02/2017 / RSIP Vision Learns / No Comments

The navigation system is one of the most powerful tools for the surgeon in the new orthopedic surgery procedures. The visualization system aids the surgeon to place his or her tools without excessive exposure to X-ray radiations. The objectives of the Navigation System Present 2D and 3D views of ...

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Registration of CT and X-ray

By R. A. / 23/02/2017 / RSIP Vision Learns / No Comments

Registration is a phase of orthopedic surgeries in which a visualization system is called to support the surgeon. This system provides real time view of the surgery environment and the information from the CT imaging. Two different steps of registration are executed here: tracking system registra...

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CT Segmentation in orthopedic surgery

By R. A. / 22/02/2017 / RSIP Vision Learns / No Comments

CT image segmentation is a typical phase of orthopedic surgeries in which a visualization system is called to visually support the surgeon’s task. This system provides a real time view of the surgery environment, as well as information coming from the pre-op planning and from the CT. It enables h...

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Calibration of X-ray images

By R. A. / 21/02/2017 / RSIP Vision Learns / No Comments

Background During the last 10 years, advanced applications have been using X-rays in the operation room together with other components, like navigation systems or CT over X-ray visualization systems, to support the surgeon in some of his or her tasks. C-arm images, like many camera images, suffer...

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3D reconstruction of the heart

By R. A. / 20/02/2017 / RSIP Vision Learns / No Comments

Cardiovascular disease is the leading cause of mortality worldwide, accounting for 30% of all deaths and about 17 million premature deaths annually.  However, these figures are decreasing due to increased awareness, healthier lifestyle and cardiac examinations which can prevent deterioration and ...

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Defect Detection in Ceramics

By R. A. / 19/02/2017 / RSIP Vision Learns / No Comments

Quality control in the ceramic industry has lately started to reap the benefits of automation. However, quality control is still performed manually in many factories around the world, as a subset of the production batch is inspected by trained personnel for various visual defects such as cracks, ...

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Grading and sorting

By R. A. / 15/02/2017 / RSIP Vision Learns / No Comments

Agricultural products are graded based on their dimensions and quality. This grade is used to sort them and assign them to different sales channels. Each item may yield better income based when properly allocated according to its exact characteristics. Usually, higher grade and bigger agricultura...

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Retinal images enhancement

By R. A. / 12/02/2017 / RSIP Vision Learns / No Comments

Image enhancement of retinal structures has the potential to facilitate diagnosis of several eye diseases. Retinal disease diagnosis and monitoring often requires very delicate analysis that can be only accomplished with appropriate resources, which include Fundus camera or OCT device with high r...

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OCR Check Scanner

By R. A. / 05/02/2017 / RSIP Vision Learns / No Comments

Digitalization of money transfer is a must in the current state of banking operations. Clients have various ways to perform transactions, such as credit, wiring money, and so forth. However, the banking systems and many businesses accepts checks as a formal means of money transfer. Checks still a...

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Pattern Recognition for Lens Markings Detection

By R. A. / 02/02/2017 / RSIP Vision Learns / No Comments

Lens marking refers to the placement of temporary and/or permanent marking, semi-visible laser engraving for the use of lens identification and trademarks, and accurate placement of guiding lines along which lenses are cut. In the process of lens manufacturing, accurate placement and localization...

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Visual Inspection of Semiconductors

By R. A. / 26/01/2017 / RSIP Vision Learns / No Comments

Imprinting information on a silicon wafer is a complex multi-process task. In the wafer fabrication process, nanoimprinting process miniature patterns a coined on the wafer body using a variety of techniques (such as UV and thermal imprints). Defects can occur during the imprinting process, stemm...

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OCR Software for Low Contrast Images

By R. A. / 25/01/2017 / RSIP Vision Learns / No Comments

Vision technologies harnessed to Intelligent Transportation Systems (ITS) enable detection of vehicles on the road according to their number plate, transmitting traffic flow analysis in real time and tracking individual cars. Automatic identification of cars based on their number plate serves pur...

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Meibomian gland dysfunction detection

By R. A. / 22/01/2017 / RSIP Vision Learns / No Comments

Meibomian gland dysfunction is often seen as an early stage of dry eye syndrome. Indeed, Meibomian glands play a significant role in tears production by contributing lipids to the superficial tear film. Pathologies which occur in meibomian glands limit the secretion of oil, causing poor lubricati...

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Glaucoma Detection

By R. A. / 17/01/2017 / RSIP Vision Learns / No Comments

Glaucoma is the second cause of blindness in the world, with over 60 million people suffering from the disease. This figure is steadily growing and most people suffering from glaucoma, even in developed countries, are not aware of their condition. Older people are at a higher risk, but glaucoma c...

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Retinal Detachment Detection

By R. A. / 15/01/2017 / RSIP Vision Learns / No Comments

Retinal detachment occurs when part of the retina detaches itself from the pigmented cell layer of the RPE, depriving itself of blood and nutrition: this condition causes blur and loss of vision. There are 2 types of detachment: either it is caused by fluids, which might be of lacrimal origins, g...

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