Image conversion

About: Image conversion is a research topic. Over the lifetime, 2490 publications have been published within this topic receiving 19077 citations.

Image conversion apparatus to perform motion compensation and method thereof

Abstract: An image conversion apparatus to perform a motion compensation and a motion compensation method. The image conversion apparatus includes a first buffer, a second buffer, and a third buffer that store sequentially incoming video fields in sequence, a motion estimator that estimates a motion vector between a first field stored in the first buffer and a third field stored in the third buffer, a motion compensator that compensates for a motion between the first field and the third field using the motion vector output from the motion estimator and thereby outputs an interpolated field, an output unit that outputs at least one of the interpolated fields output from the motion compensator and a second field stored in the second buffer, and a field selector that selects a field to be output from the output unit according to a film mode of the sequentially incoming video fields.

Standardization Of Pathology Whole Slide Images According To DICOM 145 Supplement And Storage In PACs

Abstract: Introduction/ Background In recent years different technological solutions have emerged for the scanning or digitization of histological and cytological slides in pathology, from several manufacturers. High resolution scanning is usually based in tile (small fragment) or stripes (longitudinal areas) that are combined or stitched together to create a high magnification (usually equivalent to 20x to 40x magnification) global image. Thus, a large digital slide can be displayed using specific viewers to simulate the functions of a conventional microscope. A pyramid of images is a common solution. But each scanner manufacturer optimizes the process of collecting, managing and storing images in its own format, making difficult the interconnection between systems and the ability to share images between different formats, and, generally a heavy process of image conversion and a loss of information is needed. Aims The objective is to present the process performed on proprietary image formats of histological and cytological slides in pathology to convert them the be compliant with the Digital Imaging and Communication in Medicine (DICOM) standard, according to 145 and 122 supplements, and their subsequent storage in a Picture Archiving and Communication System (PACS). Methods Python was chosen as programming platform due to its versatility and available tools. Furthermore, for future projects, Python can be used to apply signal analysis on digital images. A Pentium Core i3 4GB RAM, 1TB server with Ubuntu 14.04.3 LTS Server was used. In the server, a developer platform Eclipse Version 3.8.1 allowed the installation of PyDev for Eclipse 4.3.0 and Eclipse Jgit 1.3.0 plugins. It has been connected to a Github repository to manage developing versions. The solutions has been structured into a Python package to obtain images coming from proprietary images to be standardized to an image compliant with DICOM supplement 145, and sending them to the PACS. Results In order to test compatibility, David A. Clunie’s dicom3tools was used. This allowed verification of all Tags of the generated files, indicating those who are required according to each image, and also it offers information of those tags where included data does not match the standard and those with values that do not correspond to that standard. This tool helped to finally obtain a result of 0% errors in all generated files. Regarding storage tests, two different PACS were used. First, in collaboration with T-systems Company, an open source dcm4chee DICOM Archive 2 (dcm4che.org), and second, in collaboration with IRE Rayos X company, a commercial IRE Store Channel 4.3 was also used in several tests. After some tests with commercial and open source PACS, we could obtain the following c onclusions: In the negotiation phase, the PACS did not recognize the predetermined configuration stated in supplement 145. The solution was changing SOP to “VL Microscopic Image Storage”. Each level of the pyramid will be stored as an instance inside the same series, and each tile as a frame inside a multi-frame object. The dcm4che.org PACS offers a WADO service that allows accessing each frame separately, inside the same object, which can be useful for the implementation of slide viewers in pathology. Acknowledgment : This work has been supported by the AIDPATH project, an EU 7FP IAPP Marie Curie action, contract number 612471

Image reader, control program for controlling it and control method

Abstract: PROBLEM TO BE SOLVED: To provide an image reader capable of easily setting reading conditions of an original document, a control program to be executed by it, and a control method. SOLUTION: An MFP is provided with a scanner for an original document according to given reading conditions and outputting image data; a storage unit for storing the image data; an electronic mail transmitting/receiving unit for transmitting and receiving an electronic mail; and a control unit for controlling the scanner, the storage unit, and the electronic mail transmitting/receiving unit. The control unit is provided with a setting unit for setting the reading conditions and a transmission destination address (step S43, S42); a reading instructing unit for providing the reading conditions of the maximum performance of the scanner to the scanner to cause the scanner to output reference image data, and causing the storage unit to store the reference image data (step S44A); an image converting unit for applying image conversion to the reference image data outputted from the scanner according to the reading conditions set by the setting unit, and outputting the image data (step S44B); and an electronic mail generating means for generating an electronic mail in which the reading conditions set by the setting means are used as a main text (step S45), the image data are formed into an additional file (step S46), and the transmission destination address set by the setting unit is used as a transmission destination (step S47), and for transmitting the generated mail (S48). COPYRIGHT: (C)2006,JPO&NCIPI

Distance image processing apparatus and method, distance image reproducing apparatus and method, and program

Abstract: A data amount of an image file of a distance image can be efficiently reduced. Imaging units 21A and 21B capture a subject to acquire a reference image and a reference image for calculating a distance value including depth information and position information representing a three-dimensional shape of the subject. The distance image generation unit 31 calculates a distance value including at least one of depth information and position information from the standard image and the reference image. The distance image conversion unit 32 quantizes at least one of depth information and position information by a quantization method selected from a plurality of predetermined quantization methods, and the depth image encoding unit 33 quantizes the depth information. The distance image including the distance value including at least one of the position information and the pixel value of each pixel is encoded, and the compression / decompression processing unit 24 generates an image file of the encoded distance image. [Selection] Figure 1

Acoustical holography system for acoustic image conversion

Abstract: The present invention relates to acoustical holography systems and more particularly to the liquid surface relief method of acoustic image conversion.