Showing papers on "Image conversion published in 1990"

Method and apparatus for optimizing and storing contone images for subsequent half-toning and merging with text

Abstract: In publishing listings of real estate properties, photographed (or videotaped) images are converted to digital graphics at the "front end" of the publishing process. This image conversion ("capture") process includes cropping, contrast adjustment using statistical techniques, and generation of control information needed later in the process. A library of digital graphics and associated information is maintained. Graphics selected from this library and a conventional "multiple listing service" text database are then merged during a text composition process to provide a stream of digital data including text and embedded graphics to be printed in the listing book. Because all image operations (e.g., sizing, cropping, and digital image quality enhancement) are performed when the images are captured, no time consuming post processing steps are requird. Image capture is performed in a single step, and once an image is captured it can be used "as is" in the printing process without further review, modification or post processing.

Real-time facial action image synthesis system driven by speech and text

Abstract: Automatic facial motion image synthesis schemes and a real—time systemdesign are presented. The purpose of this schemes is to realize an intelligenthuman—machine interface or intelligent communication system with talking headimages. Human's face is reconstructed with 3D surface model and texture mappingtechnique on the display of terminal. Facial motion images are synthesizednaturally by transformation of the lattice points on wire frames. Two types of motion drive methods, text to image conversion and speech to image conversion are proposed in this paper. In the former manner, synthesized head can speak somegiven texts naturally and in the latter case, some mouth and jaw motions can besynthesized in time to speech signal of behind speaker. These schemes were implemented to a parallel image computer and a real—time image synthesizer couldoutput facial motion images to the display as fast as video rate. 1 . INTRODUCTION This paper presents a model—based facial motion image synthesis systemdriven by speech and text to realize a natural man—machine interface or anintelligent communication system with displayed talking head. This scheme can

Image conversion method for converting normal image into skewed image and its application

Abstract: PURPOSE:To execute image conversion by simple operation by allowing the picture elements of a normal image to correspond to that of a skewed image. CONSTITUTION:A normal image forming face and a skewed image forming face are respectively divided into plural unit faces, both the unit faces are allowed to correspond to each other at the ratio of 1 to 1, respective picture elements on the unit face of the skewed image forming face are transferred as a mapping image on the corresponding unit face of the normal image and information included in the picture elements on the skewed image forming face is determined based on the information included in the picture elements on the mapping position. For instance, a picture element Q corresponding to an optional picture element P in the unit face U, e.g. is found out in a unit face U' and the same color number as that of the picture element Q is assigned to the picture element P. Consequently, image conversion can be attained by simple operation.

Ink jet printer

Abstract: PURPOSE:To improve an efficiency in a dot image conversion processing applied to input characters and symbols by a method wherein by using an intrinsic warm-up time of an ink jet printer, outline font data of high use frequency is read out and made resident in a work memory. CONSTITUTION:When a power source switch is turned ON, a recording action control part 6 allows a temperature sensor 8a to start a temperature monitoring of a recording head 8, and a CPU 3 starts a processing of developing outline font data for characters and symbols of high frequency of use to a bit map image in a bit map development area 5a of a RAM 5 and continues processing until all the data is processed. In parallel to this processing, a heating element 8b has been electrically conducted to continue heating up the recording head 8 until the temperature of the recording head 8 reaches about 25 deg.C. Therefore, the processing of developing outline font data for input character codes to a bit map image can be remarkably shortened, and the characters and symbols developed to a bit map image can be printed at high speed.

Method and apparatus for correcting dispersion emission effect in x-ray image

Abstract: PURPOSE: To surely correct a scattered radiation effect in an X-ray image by determining the selection of an weighted coefficient for the image conversion of a converted image materix based on the intensity of a converted matrix element. CONSTITUTION: An object 8 is irradiated with X rays radiated from a rotating anode 3 constituting an X-ray tube 1 through a collimetor 7. A part of X-rays deviated from the irradiation direction of X-rays on the inlet screen 11 of an image tube is shielded by a scattered radiation grating 10 and an image carrying X-ray beam 5 is converted into an image carrying optical beam 13 in the image tube 9. Then a semi-transparent mirror 15 separates the optical beam 13 into a part to be formed as an image on a photographic film by a camera 17 and a part to be converted into a video signal by a TV camera 19, the video signal is digitized by an A/D converter 21 and a correction circuit 22 removes a scattered radiation effect from the video signal. Then the corrected video signal is displayed on a TV monitor.