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Predecessor
26.7
Displaying 1-10 of 10 articles from this issue
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Article type: Cover
Pages Cover1-
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (17K) -
Article type: Index
Pages Toc1-
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (30K) -
Takeo Azuma, Kenya UomoriArticle type: Article
Session ID: IPU2002-1
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSWe have developed "Double Strobe Rangefinder", which can obtain both a depth image and a color texture image simultaneously. The system consists of two sets of strobe lamps and spatial filters, a color video camera and a host PC. The PC controls the flash timing of the lamps. The filters make complementary monotonous horizontal gradation patterns. Two images are captured synchronizing with the projected pattern lights. A depth image is calculated with intensity ratio between the images, horizontal image coordinates and baseline length. The intensity ratio shows a direction of the projected light, and the coordinates show a direction from the camera. The depth calculation is completed in a few seconds by referencing LUTs. A color texture image is generated by adding the two images. The standard deviations of the depth images are about 1% of the measured depth for 1m depth with 20cm baseline length.View full abstractDownload PDF (966K) -
Yusuke NakanoArticle type: Article
Session ID: IPU2002-2
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSParametric Eigenspace Method is one of the popular method to find the 3-D object from a complex image and simultaneously to estimate the pose parameters. But it is not proper methed to estimate the pose, because it is based on the Principal Component Analysis. I propose the method to create the manifold in the subspace based on Discriminant Analysis for face pose estimation. First,the averages from the face images of different persons are computed for each pose and scale, and the discriminant space is constructed by using the FKL method extended from PCAand LDA Next, the pose parameter is estimated by 2-D manifold in the space. I report the experimental result to show the effectiveness of the proposed method.View full abstractDownload PDF (526K) -
Ryuichi Sawada, Hiroshi uda, Noriyuki ShimanoArticle type: Article
Session ID: IPU2002-3
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThis paper reports preliminary performance of a simple colorimeter, which uses the finite dimensional linear model for soectral reflectances. The colorimeter contains the olural number of light emitting diodes (LED's) with different oeak wavelengths and a photo diode. From the responses by a photo-diode, the soectral reflectance of an object was estimated by the finite dimensional inear model. Colorimetric values were comouted by the estimated surface reflectances. An average color difference in CIELAB color space, ΔEab*,of 2.66 unit was obtained for Macbeth Color Checker by using five LED's. This colorimeter may be useful for the low orice colorimeter with high accuracy.View full abstractDownload PDF (428K) -
Mineo SUZUKIArticle type: Article
Session ID: IPU2002-4
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSHuman exoressions have long been studied in the fields of psychology and anthropology, but now the subject is being Dursued from an engineering oersoective in such fields as medicine and CG as researhers examine the work of analyzing and recreating human exoressions. The purpose of this study is the automatic eeneration of realistic exoressions using CG. Numerical analyses in this work make it possible to quantify human expressions. Following generation of the exnression of a smiling face, we report our work of generating anger faces based on a method that utilizes FEM in this paper. From this work, we were able to create two kinds of anger faces as deformations of a finite element model of a face and demonstrated the possibility of making various human exoressions using methods of this work.View full abstractDownload PDF (839K) -
Takahiro UEOKA, Tatsuyuki KAWAMURA, Norimichi UKITA, Yasuyuki KONO, Ma ...Article type: Article
Session ID: IPU2002-5
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSThis paper proposes an object remembrance system in corporating a newly developed wearable camera that should be used in our daily life. A user often forgets where he/she left some objects. Our system supports him/her to recollect their locations. We have developed a wearable camera integrating an infrared camera with a color camera. The image of the object the user holds in his/her hand can be extracted from the user's hand and background image using the camera. We adopt the eigenspace method for object registration and retrieval. This method can calculate an object posture from the extracted object image. Our proposed system has two operations; one is the retrieval of an object's name using a current image and another is the retrieval of the image of the recorded object that is selected by the user from the list of resistered objects.View full abstractDownload PDF (905K) -
Isamu KOUDUKI, Masaaki FUJIYAMA, Motohiro SUZUKI, Tomonori KANEKO, Min ...Article type: Article
Session ID: IPU2002-6
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSA new approach fbr detecting an image shift between two images is presented, in which the image shift is obtained from the chase difference snectrum m consideration of the cross spectrum after Fourier transformation. This approach can get rid of errors due to noises in the phase difference spectrum as a wait Darameter based on the cross spectrum is set to each frequency. ln exDeraments of image shift detection for some computer synthetic images and camera real images, it is made clear that as a high accuracy as average 0.0 1 pixels is obtained forr all image samples except fbr a sinsrle frequency image. The results are compared with those by the conventional method fbr the same image samples. The proposed approach is considerably useful for the orecise image shift measurement with an accuracy as high as 0.01 plxels.View full abstractDownload PDF (788K) -
Article type: Appendix
Pages App1-
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (72K) -
Article type: Appendix
Pages App2-
Published: January 25, 2002
Released on J-STAGE: September 20, 2017
CONFERENCE PROCEEDINGS FREE ACCESSDownload PDF (72K)
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