58 results about "Visual distortion" patented technology

A method and system for recognizing the characters on surfaces where alphanumeric identification code ("ID" for short) may be present such as a license plate. The present system is particularly adapted for situations where visual distortions can occur, and utilizes a highly robust method for recognizing the characters of an ID. Multiple character recovery schemes are applied to account for a variety of conditions to ensure high accuracy in identifying the ID. Accuracy is greatly enhanced by taking a comprehensive approach where multiple criteria are taken into consideration before any conclusions are drawn. Special considerations are given to recognizing the ID as a whole and not just the individual characters.

A cannula includes a tubular body and an endoscope for viewing through a transparent, blunt, tissue-separating tip substantially covering the distal end of the body. Endoscopic viewing through the tip is enhanced by inner walls that taper to a cusp adjacent the blunt tip in order to reduce visual distortion. Alternatively, a cannula includes a dissection probe and a removable or deflectable tip for exposing the probe and endoscope to facilitate viewing and the dissection of connective tissue and lateral vessels along the dissected cavity. Methods of using such cannulas produce an elongated cavity along the course of a vessel for subsequent harvesting or other treatment of the isolated vessel. Lateral branch vessels of a main vessel to be harvested are doubly clipped or otherwise doubly occluded, and then severed to isolate the main vessel for use, for example, in revascularizing the coronary artery.

A base sheet of transparent polycarbonate material has a formed shape including a center portion and a peripheral portion. The center portion is formed by a non-contact forming operation occurring at a temperature above the glass transition temperature and below the melt temperature of the transparent polycarbonate material, thereby resulting in the center portion of the base sheet being free of visual distortion. A top coat layer is disposed over the base sheet. The top coat layer has a greater resistance to abrasion than the polycarbonate material and provides UV protection to the base sheet. A primer coating is disposed between the base sheet and the top coat layer to facilitate bonding therebetween. The peripheral portion can have a shape created by a contact forming operation occurring at a temperature above the glass transition temperature and below the melt temperature of the polycarbonate material.

System, methods, and apparatus allow for creating translucent surfaces within a three-dimensional model. One or more implementations render a three-dimensional model of a layout of a design space within an architectural design environment. Additionally, one or more implementations identify a first portion of the three-dimensional model that is positioned behind a translucent surface within the three-dimensional model. Furthermore, one or more implementations render a visual distortion effect for the identified first portion of the three-dimensional model. Further still, one or more implementations display on a display device the three-dimensional model comprising the translucent surface, such that the three-dimensional model is displayed behind the translucent surface in a distorted form based on the rendered distortion effect.

Techniques are described that can used to synchronize the start of frames from multiple sources so that when a display is to output a frame to a next source, boundaries of current and next source are aligned. Techniques are useful to avoid visual distortions when changing from a first video source to a second video source.

The invention provides a binary image double disturbance scoring information steganography algorithm based on STC coding. According to the algorithm, disturbance scoring is conducted on an image through an improved crmiLTP distortion measurement method, the influence of pixel point overturning before steganography and pixel point overturning after steganography on a disturbance mapping graph is considered, secret information is embedded through efficient STC coding on the basis of block hiding, and finally the steganography algorithm small in visual distortion and high in safety is designed. According to the invention, the carrier image property is considered; a double disturbance scoring criterion is set, bidirectional evaluation analysis is carried out on reversible points of an image edge area, and STC coding is combined, so that the algorithm has high image quality, small visual distortion and certain anti-steganography analysis and detection performance, and has a very large effect on secure secret communication.

A systematic approach to producing multi-dimensional photon images on a computer platform having applications to a plurality of input image(s) from various sources, and applications to coordinate and adjust numerous variables which determine the quality of the image, such as the size of the imported images, the output image size, the resolving power of the viewing screen and the width of the resolving elements, the dots per inch of the output device (or pixels per inch), the desired nearest object, the desired furthest object and the determination of the central or the “key subject”, rules of interphasing, the number of frames or layers, the minimum parallax, and the maximum parallax, and, thus, provide a digital multi-dimensional image without jumping images or fuzzy features or other visual distortions by creating high quality output images both in the form of a printed hardcopy or as a viewed image on an appropriate viewing device. The digital multi-dimensional image platform based system controls the position and path of light from the original object to the human visual system.

A transformation system for increasing the compressibility of digital images. In one embodiment, the pixels of a digital image are examined, one at a time. The color of the examined pixel is compared to that of its neighbors. If the difference in color from either of the neighboring pixels is below a threshold, the color of the neighbor that is closer to the color of the examined pixel is copied to the examined pixel. If neither of the neighbors is close enough in color, the color of the examined pixel is unchanged. The pixels are examined in a single pass. After each pixel has been examined, and possibly changed, the compressibility of the image using a dictionary-based technique, such as one of the Lempel-Ziv techniques, is typically improved.

A systematic approach to producing multi-dimensional photon images on a computer platform having applications to a plurality of input image(s) from various sources, and applications to coordinate and adjust numerous variables which determine the quality of the image, such as the size of the imported images, the output image size, the resolving power of the viewing screen and the width of the resolving elements, the dots per inch of the output device (or pixels per inch), the desired nearest object, the desired furthest object and the determination of the central or the “key subject”, rules of interphasing, the number of frames or layers, the minimum parallax, and the maximum parallax, and, thus, provide a digital multi-dimensional image without jumping images or fuzzy features or other visual distortions by creating high quality output images both in the form of a printed hardcopy or as a viewed image on an appropriate viewing device. The digital multi-dimensional image platform based system controls the position and path of light from the original object to the human visual system.

The invention relates to visual detection equipment, in particular to an injection molding robot with a visual mold monitor. The injection molding robot with the visual mold monitor can completely eliminate the serious visual distortion and blind areas of detection and protection of a traditional mold monitor, and has the characteristics of having high detection accuracy, being small and flexible,being capable of moving arbitrarily with a coordinate robot and integrating a mold monitoring protector and product quality visual inspection. The visual monitor is directly arranged on the coordinate robot. After the injection molding machine is opened, the coordinate robot descends to the interior of the mold with the monitor, can move arbitrarily and repeatedly according to detection key partsand takes photos continuously without dead angles or visual distortion; and after the shooting distance is shortened, the image definition generally increases by more than 200%, so that whether residues exist in a product and whether the product is taken out completely can be detected, whether metal and other plug-in components or pins inserted into the mold are installed in place can also be detected, whether the shaped product has quality defects such as incomplete filling, shrinkage, black spots and different colors is detected, the visual distortion is eliminated, the photos taken are clear and complete, and meanwhile the type of visual cameras is not limited.

A visual distortion test is disclosed using a sequence of binary interactions with a mobile device, in which segments of the grid having no distortions are eliminated, and the segments with distortions are divided into smaller segments for further analysis. The test can quantify the visual distortion using a decreased number of steps, compared to sequential analysis of all the segments of the grid. The binary interaction or input to the mobile device is also easier for patients than graphic interactions with a conventional Amsler Grid. Early detection of changes in the visual distortion can enable the healthcare provider to individualize treatment, helping to prevent vision loss while minimizing visits to the office, discomfort, and expense.

A systematic approach to producing multi-dimensional photon images on a computer platform having applications to input image(s) from various sources, and applications to coordinate and adjust numerous variables which determine the quality of the image, such as the size of the imported images, the output image size, the resolving power of the viewing screen and the width of the resolving elements, the dots per inch of the output device (or pixels per inch), the desired nearest object, the desired furthest object and the determination of the central or the “key subject”, rules of interphasing, the number of frames or layers, the minimum parallax, and the maximum parallax, and, thus, provide a digital multi-dimensional image without jumping images or fuzzy features or other visual distortions by creating high quality output images both in the form of a printed hardcopy or as a viewed image on an appropriate viewing device.