Patents by Inventor Yun-Chin Li

Yun-Chin Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120092534
    Abstract: An image processing method, applicable to a digital image device, includes the following steps. At least one original image of different brightness ranges is captured, and more images of different brightness ranges are generated from the original image by using an image post-processing technique. Based on characteristics of the image of each brightness range, the weights of the image of each brightness range are defined. Then, hierarchical fusion is performed on the images of the different brightness ranges according to weight relations, so as to form a high-dynamic-range image capable of presenting features of each brightness range.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 19, 2012
    Applicant: ALTEK CORPORATION
    Inventors: YUN CHIN LI, CHAN MIN CHOU
  • Publication number: 20120093394
    Abstract: A method for combining dual-lens images into a mono-lens image, suitable for a three-dimensional camera having a left lens and a right lens is provided. First, the left lens and the right lens are used to capture a left-eye image and a right-eye image. Next, a disparity between each of a plurality of corresponding pixels in the left-eye image and the right-eye image is calculated. Then, an overlap area of the left-eye image and the right-eye image is determined according to the calculated disparities of pixels. Finally, the images within the overlap area of the left-eye image and the right-eye image are combined into the mono-lens image.
    Type: Application
    Filed: February 17, 2011
    Publication date: April 19, 2012
    Applicant: ALTEK CORPORATION
    Inventor: Yun-Chin Li
  • Publication number: 20120092462
    Abstract: A method and an apparatus for generating an image with shallow depth of field, suitable for a three-dimensional imaging system having a left lens and a right lens, are provided. First, the left lens and the right lens are used to capture a left-eye image and a right-eye image. Next, a disparity between each of a plurality of corresponding pixels in the left and right-eye images is calculated. Then, the depth information of each pixel is estimated according to a focus of the left and right lens, a lens pitch between the left lens and the right lens, and the calculated disparity of each pixel. Finally, the pixels in the left-eye image and the right-eye image are blurred according to the focus of the left lens and the right lens and the estimated depth information of each pixel, so as to obtain the image with shallow depth of field.
    Type: Application
    Filed: July 29, 2011
    Publication date: April 19, 2012
    Applicant: ALTEK CORPORATION
    Inventor: Yun-Chin Li
  • Publication number: 20120086836
    Abstract: The present invention discloses an electronic apparatus, an image capturing apparatus and a method thereof. The image capturing method comprises the following steps of: capturing a plurality of temporal images by an image capturing module, and setting one of the temporal images as a base image by a processing module; dividing each temporal image into a plurality of temporal image blocks, and dividing the base image into a plurality of base image blocks by the processing module; determining whether the difference between each temporal image block and the corresponding base image block is lower than a threshold value by the processing module; integrating the temporal image block and the corresponding base image block to generate a final image by the processing module when the difference between the temporal image block and the corresponding base image block is lower than the threshold value.
    Type: Application
    Filed: April 11, 2011
    Publication date: April 12, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Yun-Chin Li, Yu-Ming Cheng, Chin-Lung Yang
  • Publication number: 20120044389
    Abstract: A method generates a super resolution (SR) image by the steps of receiving a plurality of images corresponding to the same shot target; selecting one of the images as a basic image, and using the images except the basic image as a plurality of reference images; processing the reference images by using a geometric coordinate correction procedure according to the basic image, so as to generate a plurality of corrected images respectively corresponding to the reference images; and performing a resolution enhancement procedure on the basic image and the corrected images, so as to generate the SR image.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 23, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Yun Chin Li, Chan Min Chou
  • Patent number: 8049785
    Abstract: An optimum image selection method for a digital photograph device selecting an optimum image by driving a vibration detection sensor mechanism is provided. In continuous photography mode, as soon as capturing an image, it detects and records the vibration amount of the image, and then compares the presently detected vibration amount with the vibration amount of the image which is stored formerly, and if the vibration amount detected presently is smaller, the image captured presently will be stored, so the clearest image will be distinguished and retained immediately by using the vibration amount.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: November 1, 2011
    Assignee: Altek Corporation
    Inventors: Shih-Chang Han, Chin-Lung Yang, Yun-Chin Li
  • Patent number: 8018495
    Abstract: A method for compensating movement of an image capturing apparatus is applied in a photographing mode whose exposure time is greater than the safe shutter time. The method includes the steps of: capturing a long exposure image under the desired exposure time and a short exposure image with an exposure time smaller than or equal to the safe shutter time, and recording a camera motion signal in the exposure time of the long exposure image. The image-shift signal is used to reconstruct the short exposure image and form a reconstructed image, and an image analyzing algorithm is utilized to extract the reconstructed image and the short exposure image of a different frequency component. Finally, different frequency components of the image are fused according to the specific ratios to produce a clear output image.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: September 13, 2011
    Assignee: Altek Corporation
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Patent number: 7978223
    Abstract: A method for suppression of image blur is applied to an image capturing apparatus in a photography mode whose exposure time is set to be greater than a safe exposure time. The method comprising the following steps: capturing a long exposure image with the present exposure time, and a short exposure image with an exposure time smaller than or equal to the safe exposure time in the same landscape. Besides, obtain a locus signal in the process of long exposure image capture. Afterwards, execute an arithmetic procedure to smooth the short exposure image, and then produce a point scale image using the auxiliary arithmetic of locus signal. Finally, process the long exposure image and the point scale image with multiplication arithmetic to restore the long exposure image, thus forming an output image.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: July 12, 2011
    Assignee: Altek Corporation
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Patent number: 7856178
    Abstract: A method for compensating camera movement solves the problem of the captured image becoming blurred due to involuntary camera movement in the following way. Firstly, a camera with a look-up table is provided. Next, after a trigger signal is received, the camera movement and the environmental brightness are detected to generate a movement value and a brightness index. A compensation mode and a set of parameters that correspond to the movement value and the brightness index are selected from the look-up table. Finally, when an image-capturing signal is received, the movement compensation modules of the camera are driven by referring to the compensation mode and the parameters to capture a sharp image in a best mode.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 21, 2010
    Assignee: Altek Corporation
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Publication number: 20100141737
    Abstract: A method for real-time prompting a stitching degree of a panoramic image applied to a digital image pickup device. At first, a boundary band of a first image is captured to obtain an boundary image, and a second image is detected. Next, the boundary image and a local image of the second image are merged, and an association value of the boundary image and the local image of the second image is calculated. Then, the second image after being merged with the boundary image and a prompt signal corresponding to the association value are displayed on a screen.
    Type: Application
    Filed: November 17, 2009
    Publication date: June 10, 2010
    Applicant: ALTEK CORPORATION
    Inventors: Yun-Chin Li, Chin-Lung Yang
  • Publication number: 20100123806
    Abstract: An image compensation method adapted to reduce noise of a first image captured by an image acquisition device at a high ISO mode. The image compensation method includes the following steps. A Bayer pattern is obtained from the first image. A green pixel signal, a low-resolution binned original luminance signal, and an original chrominance signal are respectively generated according to the Bayer pattern. A high-resolution analog luminance signal is generated by using the green pixel signal. The high-resolution analog luminance signal and the low-resolution binned original luminance signal are combined, and a compensated high-resolution luminance signal is output. A second image is generated by combining the compensated high-resolution luminance signal and the original low-noise chrominance signal.
    Type: Application
    Filed: August 6, 2009
    Publication date: May 20, 2010
    Applicant: ALTEK CORPORATION
    Inventors: Yun-Chin LI, Chin-Lung YANG
  • Publication number: 20090169129
    Abstract: A method for automatically transforming color space and prospects of an imaging device is disclosed. The method at least includes: selecting a source image and a target image; transforming color space automatically wherein the color spaces of the two images are respectively transformed into another color space; matching levels, wherein features are grouped and the most similar adjacent field is searched; and copying the chrominance values—distributing the best matched brightness level distributions of said another color space of the source image and the target image, finding the pixels corresponding to the target image, and then copying the chrominance values to the source image to transform prospects.
    Type: Application
    Filed: October 15, 2008
    Publication date: July 2, 2009
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Publication number: 20090153690
    Abstract: A method for determining imaging quality of a camera via a motion sensor and ISO settings uses a CCD sensor module, an ISO setting module, a shutter module, a zoom module and a color temperature module to provide all kinds of information of an object image and transmit the information to an image processing unit to be processed, uses a motion sensor module to provide camera motion information, and then uses the image processing unit to estimate the level of motion of the camera and adjust and correct the information provided by the modules according to the camera motion information provided by the motion sensor module to select optimum settings and compression quality.
    Type: Application
    Filed: February 19, 2008
    Publication date: June 18, 2009
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Publication number: 20090123141
    Abstract: A method for suppression of image blur is applied to an image capturing apparatus in a photography mode whose exposure time is set to be greater than a safe exposure time. The method comprising the following steps: capturing a long exposure image with the present exposure time, and a short exposure image with an exposure time smaller than or equal to the safe exposure time in the same landscape. Besides, obtain a locus signal in the process of long exposure image capture. Afterwards, execute an arithmetic procedure to smooth the short exposure image, and then produce a point scale image using the auxiliary arithmetic of locus signal. Finally, process the long exposure image and the point scale image with multiplication arithmetic to restore the long exposure image, thus forming an output image.
    Type: Application
    Filed: July 9, 2008
    Publication date: May 14, 2009
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Publication number: 20090115857
    Abstract: A method for providing image blur information is applied to a photographing mode of image capturing apparatus of which a shooting shutter speed is greater than a safe shutter speed, the method comprising the steps of: capturing a long exposure image in the shooting shutter speed and a short exposure image which is smaller than or equal to the safe shutter speed, in order to search correspondingly a plurality of characteristic positions in the long exposure image and the short exposure image, and then comparing the characteristics on the relative characteristic positions between the long exposure image and the short exposure image to produce a comparing result upon which a further operation is performed to define a degree of image blur. Thus, the present invention can achieve the purpose of providing image blur information for the long exposure image when the image capturing apparatus captures the long exposure image.
    Type: Application
    Filed: July 24, 2008
    Publication date: May 7, 2009
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Publication number: 20090103910
    Abstract: A method for compensating camera movement solves the problem of the captured image becoming blurred due to involuntary camera movement in the following way. Firstly, a camera with a look-up table is provided. Next, after a trigger signal is received, the camera movement and the environmental brightness are detected to generate a movement value and a brightness index. A compensation mode and a set of parameters that correspond to the movement value and the brightness index are selected from the look-up table. Finally, when an image-capturing signal is received, the movement compensation modules of the camera are driven by referring to the compensation mode and the parameters to capture a sharp image in a best mode.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 23, 2009
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Publication number: 20090086057
    Abstract: An optimum image selection method for a digital photograph device selecting an optimum image by driving a vibration detection sensor mechanism is provided. In continuous photography mode, as soon as capturing an image, it detects and records the vibration amount of the image, and then compares the presently detected vibration amount with the vibration amount of the image which is stored formerly, and if the vibration amount detected presently is smaller, the image captured presently will be stored, so the clearest image will be distinguished and retained immediately by using the vibration amount.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 2, 2009
    Applicant: ALTEK CORPORATION
    Inventors: SHIH-CHANG HAN, CHIN-LUNG YANG, YUN-CHIN LI
  • Publication number: 20090087173
    Abstract: A method for compensating movement of an image capturing apparatus is applied in a photographing mode whose exposure time is greater than the safe shutter time. The method includes the steps of: capturing a long exposure image under the desired exposure time and a short exposure image with an exposure time smaller than or equal to the safe shutter time, and recording a camera motion signal in the exposure time of the long exposure image. The image-shift signal is used to reconstruct the short exposure image and form a reconstructed image, and an image analyzing algorithm is utilized to extract the reconstructed image and the short exposure image of a different frequency component. Finally, different frequency components of the image are fused according to the specific ratios to produce a clear output image.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 2, 2009
    Inventors: Yun-Chin Li, Chin-Lung Yang, Shih-Chang Han
  • Publication number: 20090086032
    Abstract: A system for detecting and compensating camera movement includes a pulse-sensing module and a process/control module. The pulse-sensing module senses the pulse and converts the pulse signal into a pulse count. The process/control module is coupled with the pulse-sensing module for receiving the pulse count and comparing the pulse count with a standard value. When the pulse count exceeds an allowable deviation of the standard value, the movement-compensating process is started to generate an alarm signal to notify the user to adopt a stable method to take a picture, and/or to cause the movement-compensating module to capture an image.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 2, 2009
    Applicant: ALTEK CORPORATION
    Inventor: Yun-Chin Li