The Journal of the Institute of Image Electronics Engineers of Japan
Online ISSN : 1348-0316
Print ISSN : 0285-9831
ISSN-L : 0285-9831
Search
Advanced search
OR
Browse
Search
Volume 33, Issue 1
Displaying 1-14 of 14 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
Contributed Papers
  • Colorization Method by Propagating Seed Pixels
    Takahiko HORIUCHI, Sayaka HIRANO
    2004Volume 33Issue 1 Pages 2-8
    Published: 2004
    Released on J-STAGE: February 28, 2006
    DOIhttps://doi.org/10.11371/iieej.33.2
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    This paper presents a colorization method for a black and white imagery by giving a partial color information as seed pixels. Although the colorization is an ill-posed problem, in this paper, the problem is solved based on local Markov property on images. At first, a user plants some color pixels as seeds on a grayscale image. Then, colors are propagated from the seed pixels by minimizing the pixel-wise RGB difference among connected 4-pixels. By comparing with a conventional algorithm, the proposed algorithm works well for both quality and speed.
    View full abstract
    Download PDF (810K)
  • Non Linear Editing of MPEG-2 Coded Region
    Michinori NAKAZIMA, Tomoya EGUTI, Kazuo OHZEKI
    2004Volume 33Issue 1 Pages 9-18
    Published: 2004
    Released on J-STAGE: February 28, 2006
    DOIhttps://doi.org/10.11371/iieej.33.9
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Distribution of coded files is increasingly growing. Signal processing after coding increases with the growth of distribution, and is becoming a significant burden in the media environment. New signal processing methods of addition, multiplication, and exchanging of coded regions are becoming important for suppressing delay, reducing the amount of calculation, and maintaining picture quality. Some of these processings had been tried as manipulating compressed images. In this paper, we consider signal processing in the coded region. They are logo insertion and non-linear editing. The logo insertion replaces parts of a coded file by other coded logo data. The problem of moving frame is analyzed. Dissolve is one of typical non-linear editing operations in the coded region. Replacing B-pictures by pre-coded deta, a new dissolve effect is realized. The proposed system does not degrade picture quality from the pre-coded level and does reduce file size.
    View full abstract
    Download PDF (1237K)
  • A High-density and High-speed Tactile Display Panel Using Passive-writing Method
    Shigekazu YANAGISAWA, Yoshimichi YONEZAWA, Kazunori ITO, Masami HASHIM ...
    2004Volume 33Issue 1 Pages 19-26
    Published: 2004
    Released on J-STAGE: February 28, 2006
    DOIhttps://doi.org/10.11371/iieej.33.19
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    We aimed to enable the blind to recognize mobile phone images. We designed a display panel which can display Braille and flat images with the human tactile resolution by finger. Basic recognition tests on pin images were carried out, changing pin spaces, and as a result, at most 1 mm-pin-space was found necessary for tactile sensing. To make the display panel with the specification, we proposed a passive-type display mechanism with electromagnetic writing head and display surface with lock mechanism. We made the mechanism for a single display element and confirmed the possibility of writing speed of 20 ms/dot in the display panel with pin space of 1 mm.
    View full abstract
    Download PDF (591K)
Human in Cyber Society — Issues on Information Ethics and Educational Policy — I
Color Devices and their Image Processing V
Emerging Broadband Technologies III
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top