International Workshop on Advanced Image Technology (IWAIT)
2018 International Workshop on Advanced Image Technology (IWAIT)
7-9 Jan. 2018
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Study on appearance of beta motion in peripheral vision
Hikaru Shibata;Riku Yamanoi;Hiroto Inoue;Hidetaka Masuda;Nobuji Tetsutani
Publication Year: 2018,Page(s):1 - 4
In this paper, we conducted experiments on obtaining the speeding-up rate and quantifying the disappearance phenomenon of the white spots for the speedup phenomenon caused by viewing the β motion of the white point in peripheral vision. For the speedup rate when the moving speed of white spots was 30 degrees / sec and the eccentricity of retina was 70 degrees, the speedup rate of white spots becam...Show More
Study on the degree of memory of facial contents
Nobuhiko Sasaoka;Yukiya Horie;Hidetaka Masuda;Nobuji Tetsutani
Publication Year: 2018,Page(s):1 - 4
The sense of incongruity experienced by people is the feeling that "I understand something is different, but cannot explain it in concrete terms." This sense of incongruity may trigger the detection of fake works, such as paintings. In this paper, we focused on the size of the face of an unconsciously memorized person to clarify the relationship between unconscious memory and incongruity. Using th...Show More
Study of visual phenomena in edge blur
Takahiro Miyamoto;Yukiya Horie;Hiroto Inoue;Hidetaka Masuda;Nobuji Tetsutani
Publication Year: 2018,Page(s):1 - 4
The newly discovered edge visual phenomena are as follows: when there is a blurred region at the edge, the perceived density changes in the entire area on both sides of the edge. In other words, if the edge is blurred, the contrast will be reduced in the surrounding area. Furthermore, the influence of the density change due to the observation time is not studied, but we found that the change in pe...Show More
A lossless two-layer coding scheme for HDR images using a histogram packing technique is proposed for HDR images in this paper. The proposed scheme has the compatibility with the legacy JPEG for base layer as well as the normative JPEG XT standard. A histogram packing technique is applied to residual images to improve the performance of lossless compression. The experimental result for the bitrate...Show More
This is a study of interlocking puzzle design that uses an interactive application instead of the normal assembly. The study investigates whether using an interactive application will help testers better understand an interlocking system of a cube-puzzle assembly than when using a normal assembly design. The proposed interactive application, which is easy to test, will make it possible for the tes...Show More
Quantitative analysis of aroma components by gas chromatography-mass spectrometry and its subjective evaluation for olfactory media content
Takuma Kitamoto;Makoto Roppongi;Taki Matsumoto;Mariko Tsuruta;Hiroshi Hasegawa
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (1)
With the aim of applying to the olfactory media content, this paper investigates effects on a subjective evaluation of lemon aroma of its temperature and quantified density. We first made 12 aromatic gases (4 amounts of lemon essential oil (0.5, 1, 5, and 10 mg in a glass bottle of 1.35 L volume) × 3 temperatures (5, 25, and 60 degrees in Celsius)), and performed a quantitative analysis of limonen...Show More
Low complexity reference frame selection in QTBT structure for JVET future video coding
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (2)
In this paper, we propose a reference frame search method for JVET future video codec (FVC) that employs the quadtree plus binary tree (QTBT) structure. Among many new technologies proposed in FVC, QTBT poses a significant challenge since it contains the structural change of coding tree unit from HEVC. To reduce the encoding complexity of FVC with QTBT structure, we investigated some redundancy in...Show More
Random-valued impulse noise removal using non-local search for similar structures and sparse representation
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (2)
In this paper, we introduce a new method to remove random-valued impulse noise in an image. Random-valued impulse noise replaces the pixel value at a random position by a random value. Due to the randomness of the noisy pixel values, it is difficult to detect them by comparison with neighboring pixels, which is used in many conventional methods. Then we improve the recent noise detector which uses...Show More
Visualization of color transfer between images in RGB color space
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (1)
This paper proposes a novel approach for visualizing the process of color transfer between images. The color transfer is a technique by enforcing an image having similar color characteristics with another. Considering the pixels of reference image and target image as point clouds in RGB color space, then the color transfer becomes geometrical transformation to make the target image have the same d...Show More
Efficient MIMO video transmission scheme for the scalable video coding extension of HEVC
Manthana Tiawongsuwan;Koji Tashiro;Leonardo Lanante;Masayuki Kurosaki;Hiroshi Ochi
Publication Year: 2018,Page(s):1 - 3
Cited by: Papers (1)
High efficiency video coding (HEVC) is the newest video coding standard of the ITU-T Video Coding Experts Group and the ISO/IEC Moving Picture Experts Group. The introduction of multiple-input multiple-output (MIMO) eigenbeam-space division multiplexing (E-SDM) systems makes it possible to increase data rate by multiplexing different data streams on multiple parallel eigen-channels. In this paper,...Show More
Backward recognition system for wheelchair user using RGB-D sensor
Publication Year: 2018,Page(s):1 - 3
Cited by: Papers (1)
Wheelchair user has a difficult problem to confirm backward in their life. In order to support backward movement of the wheelchair user, this paper proposes a method presenting the information such as obstacles and stairs behind the user in an easy-to-understand way. Obstacles and steps are detected by installing the RGB-D camera directly above the wheelchair user. Also the distance between wheelc...Show More
A method to read numbers in Thai nutrition facts label by using SVM
Supawadee Ekkasan;Theekapun Charoenpong;Kosin Chamnongthai;Supiya Charoensiriwath
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (1)
Due to a problem of current research occurring when reading the nutrition facts label with Thai font. In this paper, we proposed a method to read the amount of the nutrition numbers on nutrition facts label with Thai font by using integrated image processing technique. This method consists of three steps: label extraction, number segmentation, and number classification. Nutrition facts label image...Show More
A study on object detection method from manga images using CNN
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (69)
Japanese comics (manga) are popular content worldwide. In order to acquire metadata from manga images, techniques automatic recognition of manga content have been studied. Recently, Convolutional Neural Network (CNN) has been applied to object detection in manga images. R-CNN and Fast R-CNN generate region proposals by Selective Search. Faster R-CNN generates them using CNN layers called Region Pr...Show More
Affine motion estimation/compensation (AME/AMC) is known as one of promising techniques for inter prediction coding, which can efficiently remove temporal redundancy in video sequences. In our previous work, we have proposed two 3-parameter affine motion models and their block-matching-based efficient search technique for HEVC, and have demonstrated its superiority over conventional techniques. Al...Show More
Automatic generation of realistic connection between arbitrary CG motions using convolutional filter
Publication Year: 2018,Page(s):1 - 3
By the progress of Computer Graphics(CG) technology, it has become possible to create high quality human CG objects. To make them operate real, high quality motion data is needed. Generally, motion data is created by a motion capture system. However, the cost and time required for creating many motion data can't be ignored. In particular, when connecting motions, it takes time and effort to adjust...Show More
Three-dimensional shape reconstruction from a single image based on feature learning
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (1)
Many previous works have proposed methods for reconstructing a three-dimensional (3D) shape from a single image. Some of the methods reconstruct a 3D shape using machine learning. These methods learn the relationship between a 3D shape and a 2D image. However, they cannot learn the desirable features of 2D images for 3D reconstruction, because they use only predefined features. Therefore, this pap...Show More
Proposal of local feature vector focusing on the differences among neighboring ROI’s
Publication Year: 2018,Page(s):1 - 3
Cited by: Papers (1)
It is difficult to cope with the product surface inspections with complicated textures by using the conventional procedures such as basic banalization, morphology processing, etc. Then we propose a set of new local features which could be sensitive to the differences among neighboring ROI's and experimented successfully how the proposed features were effective.Show More
AR sightseeing system with proximity detection and markerless AR
Publication Year: 2018,Page(s):1 - 3
Cited by: Papers (4)
Large lung specimen imaging full-field micro-CT using a high-megapixel single lens reflex camera and synchrotron radiation
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (2)
We have been developing large-field and high-resolution x-ray micro-CT systems using a 36M-pixel digital single lens reflex camera. The systems are highly specialized for large human lung specimen imaging of centimeter-sized objects with micrometer-range spatial resolution. The x-ray detector systems consist of a fluorescent screen for converting x-rays to a visible image, a pair of two interchang...Show More
Data hiding technique for omnidirectional JPEG images displayed on VR spaces
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (5)
We propose a data hading technique for images in this paper. Our technique hides additional data of images into image data area for not being separated each other easily. The proposed technique uses omnidirectional JPEG images as cover data because of the huge amount of the embeddable area. Moreover, the embedded omnidirectional image can be viewed on VR space and the embedded data are extracted a...Show More
A study on pseudo stereoscopic vision from a piece of human group picture: Face recognition, segmentation, and depth estimation
Makoto Takamatsu;Ayaka Nakamura;Seiji Ishihara;Makoto Hasegawa;Eizaburo Iwata
Publication Year: 2018,Page(s):1 - 2
Cited by: Papers (1)
A method of pseudo stereoscopic vision from a piece of human picture is proposed. Faces from a group photo are detected using face recognition systems and the distance from camera lens called “depth” of each person is estimated using each face size. We propose a method of segmenting each person using super pixels. To generate our pseudo stereoscopic vision, we create two images for right-eye and l...Show More
Estimation of facial motions in lectures from degraded video considering privacy
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (1)
Many researchers are trying to estimate the degree of concentration of students on lectures by analyzing the movement of their faces from the video taken of the attendance status. However, taking pictures with a video camera in places like classrooms where attendees are limited has a problem of privacy protection. So, it is impossible to take videos unless all students accept it. If we can analyze...Show More
Depth estimation from tilted optics blur by using neural network
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (3)
We have been investigating a depth estimation system for real-time usage such as automotive tasks. Conventional method with stereo camera is too sensitive to slight variations of baseline length. Additionally, it has occlusion problem. Conversely, the method that uses a monocular camera by focusing cannot provide a balance between wide-area estimation and real-time estimation. Therefore, we propos...Show More
A contrast restoration method for effective single image rain removal algorithm
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (5)
This paper introduces an efficient rain removal algorithm by including the contrast restoration method. Since the rain streaks in rainy image exist in the high frequency parts, many conventional rain removal algorithms first decompose the input rainy image into the base (low-frequency) layer and the detail (high-frequency) layer and then perform rain removal on the detail layer rather than on the ...Show More
Simulating a stacked-layer light-field display using orthographic/perspective view models
Publication Year: 2018,Page(s):1 - 4
Cited by: Papers (1)
A stacked-layer light-field display consists of a few light attenuating layers stacked in front of a backlight. The appearance of the three-dimensional images produced with this display differs depending on how the input multi-view images are assigned to the light rays that are to be emitted from the display. In this research, we develop a simulator of this display where input images can be made c...Show More
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