Patent
Image processing apparatus and image processing program
Akio Ozawa,Kohei Murao +1 more
- 29 Jul 2002
13
TL;DR: In this paper, an original image is subjected to an opening processing and to a closing processing to obtain a blurred image by using an average value between the result of the initial processing and the final output of the closing processing as a reference for correcting the brightness.
read more
Abstract: An original image is subjected to an opening processing and to a closing processing to obtain a blurred image by using an average value between the result of the opening processing and the result of the closing processing as a reference for correcting the brightness. The brightness of the original image is corrected by multiplying a difference between the blurred image and the original image, by a ratio of an upper limit value of brightness to a difference between the upper limit value of brightness and the blurred image. Then, the brightness of the original image is corrected based on the blurred image which enhances the contrast of a highly bright portion of a predetermined area or more while lowering the brightness of that portion. Contrast and brightness of the whole image can be adapted to the sensitivity of human eyes.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Peripheral pixel noise reduction
Wayne Carl Westerman,Steve Hotelling +1 more
- 03 Jan 2007
TL;DR: In this paper, techniques for identifying and discriminating between different input patterns to a multi-touch touch-screen device are described, where large objects hovering a short distance from the touch-surface (e.g., a cheek, thigh or chest) may be identified and distinguished from physical contacts to the surface.
74
Patent
Method and apparatus for recognizing speech by lip reading
Yuichiro Takayanagi,Masashi Kusaka +1 more
- 13 Aug 2015
TL;DR: In this article, a dictation device includes an audio input device configured to receive a voice utterance including a plurality of words, a video input device configurable to receive video of lip motion during the utterance, a memory portion, and a controller configured according to instructions in the memory portion to generate first data packets including an audio stream representative of the voice utterances and a video stream representing the lip motion; and a transceiver for sending the first data packet to a server end device and receiving second data packet including combined dictation based upon the audio stream and the video stream from
17
Patent
Method for correcting inhomogeneities in an image, and an imaging apparatus therefor
Vladimir Jellus
- 20 Dec 2005
TL;DR: In this paper, a method for correcting inhomogeneities in an image that is recorded from an examination object is proposed, which includes recording an image, calculating a correction image from the image to be corrected and correcting the recorded image with the aid of the correction image in order to produce a normalized image by multiplying the corrected image by the image.
17
Patent
Image processing device, image processing method, program, storage medium and image processing system
Makoto Sato
- 13 Dec 2004
TL;DR: An image processing device includes an image input portion that inputs two images, an image processing portion that applies image processing to the two images to generate processed images, and a difference processing component that performs difference processing between the processed images to output a difference image as discussed by the authors.
7
Patent
Method for image processing by unsharp masking
Tzu-Hung Cheng
- 17 Sep 2003
TL;DR: In this article, a method for adjusting an image signal by a processor includes providing a first low pass filter and a second low-pass filter, generating an energy ratio of a band-pass image signal and the image signal according to the standard deviation of a low pass signal.
7
References
Patent
Three-dimensional infrared imager for subcutaneous puncture and study of vascular network
Eduardo Svetliza
- 24 Aug 1998
TL;DR: In this article, a stereoscopic infrared imaging system for the study of the vascular network is presented. But the system is not suitable for the use of ultrasound and cannot reach a level of vision which is impossible to reach with visible light.
125
Patent
Methods of detecting, classifying and quantifying defects in optical fiber end faces
John M. Palmquist,Arthur T. Schmidt,Behzad Shahraray +2 more
- 22 Nov 1991
TL;DR: In this article, the end face of an optical fiber terminated by a ferrule is acquired at each of three focal positions which collectively include all the features of interest and information from these images are combined into a single image which is processed further.
109
Patent
Image blur prevention apparatus
Koichi Washisu,Tadasu Ohtani +1 more
- 01 May 1996
TL;DR: In this paper, a position detector is used to match the center position of a displacement of a movable optical unit with a mechanical initial position of the optical unit, such as a balanced position with gravity or a lock position.
107
Patent
Image processing method and apparatus
Yamada Masahiko
- 26 Sep 2000
TL;DR: In this paper, an iris filter is carried out on an image signal representing an image, and the degree of centralization of gradients of the original image signal with respect to a picture element is calculated, each of picture elements constituting the image being taken as the picture element.
80
Patent
Fluid composition for drilling
Yuji Hori,Yoshichika Nishimura,Fuminobu Takahashi +2 more
- 03 Apr 1984
TL;DR: In this article, a fluid composition suitable for use in drilling containing a sulfoethylcellulose alkali metal salt of which a degree of substitution is from 0.5 to 2.5 and the viscosity of a 1% by weight aqueous solution is 5 to 5,000 cP.
36