Patents by Inventor Chung-Pin Lu

Chung-Pin Lu 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).

  • Patent number: 8587714
    Abstract: A method for capturing an image, suitable for an image capturing apparatus with a flash lamp, is provided. In the invention, a pre-flash image is captured when a pre-flash is fired by the flash lamp. An intensity of a main flash is estimated. Whether the pre-flash image is overexposed is determined for calculating an overexposure number. A brightness comparison data is looked up according to the overexposure number and a brightness target value, so as to reduce a photosensitivity. A raw image is captured according to the reduced photosensitivity when the main flash is fired by the flash lamp.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 19, 2013
    Assignee: Altek Corporation
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Publication number: 20130010161
    Abstract: A method for capturing an image, suitable for an image capturing apparatus with a flash lamp, is provided. In the invention, a pre-flash image is captured when a pre-flash is fired by the flash lamp. An intensity of a main flash is estimated. Whether the pre-flash image is overexposed is determined for calculating an overexposure number. A brightness comparison data is looked up according to the overexposure number and a brightness target value, so as to reduce a photosensitivity. A raw image is captured according to the reduced photosensitivity when the main flash is fired by the flash lamp.
    Type: Application
    Filed: August 9, 2011
    Publication date: January 10, 2013
    Applicant: ALTEK CORPORATION
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Patent number: 8351778
    Abstract: A method for adjusting brightness of an image, suitable for an image capturing apparatus with a flash lamp, is provided. In the method, an intensity of a main flash of the flash lamp is raised, and a sensitivity is reduced. When the main flash is fired by the flash lamp, a raw image is captured according to the reduced sensitivity for calculating a brightness mean value. A gain ratio is calculated according to the brightness mean value and a brightness target, so as to use the gain ratio to compensate the brightness of the raw image.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: January 8, 2013
    Assignee: Altek Corporation
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Publication number: 20120294599
    Abstract: A method for adjusting brightness of an image, suitable for an image capturing apparatus with a flash lamp, is provided. In the method, an intensity of a main flash of the flash lamp is raised, and a sensitivity is reduced. When the main flash is fired by the flash lamp, a raw image is captured according to the reduced sensitivity for calculating a brightness mean value. A gain ratio is calculated according to the brightness mean value and a brightness target, so as to use the gain ratio to compensate the brightness of the raw image.
    Type: Application
    Filed: July 27, 2011
    Publication date: November 22, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Publication number: 20120251090
    Abstract: A camera including a main body, a lens and a flashlight module is provided. The main body has an image capturing unit. The lens is disposed on the main body at a position corresponding to the image capturing unit for guiding lights to the image capturing unit. The flashlight module includes a first light source and second light sources. The first light source is disposed on the main body and has a first emitting area. The second light sources are disposed on the main body and surround the first light source. Each second light source has a second emitting area. The second emitting areas surround the first emitting area.
    Type: Application
    Filed: June 21, 2011
    Publication date: October 4, 2012
    Applicant: ALTEK CORPORATION
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Patent number: 8275252
    Abstract: A camera including a main body, a lens and a flashlight module is provided. The main body has an image capturing unit. The lens is disposed on the main body at a position corresponding to the image capturing unit for guiding lights to the image capturing unit. The flashlight module includes a first light source and second light sources. The first light source is disposed on the main body and has a first emitting area. The second light sources are disposed on the main body and surround the first light source. Each second light source has a second emitting area. The second emitting areas surround the first emitting area.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: September 25, 2012
    Assignee: Altek Corporation
    Inventors: Chung-Pin Lu, Yi-Yu Chen
  • Patent number: 8189097
    Abstract: An adjusting method of flash intensity is applied in an image capture apparatus with a flash lamp, where two pre-flash images corresponding the object are retrieved under two different pre-flash lights, respectively, and then a flash intensity of main-flash light is calculated according to one of the retrieved pre-flash images, so as to retrieve a main-flash image corresponding the object under the main-flash light with the calculated main-flash light.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: May 29, 2012
    Assignee: Altek Corporation
    Inventors: Chan-Min Chou, Chung-Pin Lu
  • Patent number: 8106966
    Abstract: A digital image capture device and a brightness correction method thereof are described. The digital image capture device is adapted to correct the brightness value of a shot object in a digital image through the compensation of a strobe during shooting. The method includes setting a shooting magnification of the digital image capture device to the shot object; capturing a pre-shot image at least including the image of the shot object; triggering a strobe to emit a main flash onto the shot object, so as to shoot a digital image; setting a plurality of light measuring areas in the digital image; calculating a corresponding object distance of the shot object from each of the light measuring areas; establishing a shading table according to each of the object distances; and loading the shading table to adjust the brightness value of each of the light measuring areas in the digital image.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: January 31, 2012
    Assignee: Altek Corporation
    Inventors: Chan-Min Chou, Chung-Pin Lu
  • Publication number: 20110285876
    Abstract: A digital image capture device and a brightness correction method thereof are described. The digital image capture device is adapted to correct the brightness value of a shot object in a digital image through the compensation of a strobe during shooting. The method includes setting a shooting magnification of the digital image capture device to the shot object; capturing a pre-shot image at least including the image of the shot object; triggering a strobe to emit a main flash onto the shot object, so as to shoot a digital image; setting a plurality of light measuring areas in the digital image; calculating a corresponding object distance of the shot object from each of the light measuring areas; establishing a shading table according to each of the object distances; and loading the shading table to adjust the brightness value of each of the light measuring areas in the digital image.
    Type: Application
    Filed: August 5, 2011
    Publication date: November 24, 2011
    Applicant: ALTEK CORPORATION
    Inventors: Chan-Min Chou, Chung-Pin Lu
  • Patent number: 8054374
    Abstract: An image brightness correction method is described. First, a pre-flash is fired and a pre-flash image is shot. After a main flash duration is estimated according to the pre-flash image and an automatic exposure time of a camera device, a main flash is fired and a raw image is shot. Then, a brightness gain of the raw image is compensated according to a preset gain threshold, and a digital brightness gain of the image is adjusted to enable the image shot each time to achieve the same brightness gain.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: November 8, 2011
    Assignee: Altek Corporation
    Inventors: Chan-Min Chou, Chung-Pin Lu
  • Publication number: 20100165178
    Abstract: An adjusting method of flash intensity is applied in an image capture apparatus with a flash lamp, where two pre-flash images corresponding the object are retrieved under two different pre-flash lights, respectively, and then a flash intensity of main-flash light is calculated according to one of the retrieved pre-flash images, so as to retrieve a main-flash image corresponding the object under the main-flash light with the calculated main-flash light.
    Type: Application
    Filed: July 22, 2009
    Publication date: July 1, 2010
    Applicant: Altek Corporation
    Inventors: Chan Min Chou, Chung Pin Lu
  • Publication number: 20100149380
    Abstract: A digital image capture device and a brightness correction method thereof are described. The digital image capture device is adapted to correct the brightness value of a shot object in a digital image through the compensation of a strobe during shooting. The method includes setting a shooting magnification of the digital image capture device to the shot object; capturing a pre-shot image at least including the image of the shot object; triggering a strobe to emit a main flash onto the shot object, so as to shoot a digital image; setting a plurality of light measuring areas in the digital image; calculating a corresponding object distance of the shot object from each of the light measuring areas; establishing a shading table according to each of the object distances; and loading the shading table to adjust the brightness value of each of the light measuring areas in the digital image.
    Type: Application
    Filed: April 8, 2009
    Publication date: June 17, 2010
    Applicant: ALTEK CORPORATION
    Inventors: Chan-Min Chou, Chung-Pin Lu
  • Publication number: 20100073552
    Abstract: An image brightness correction method is described. First, a pre-flash is fired and a pre-flash image is shot. After a main flash duration is estimated according to the pre-flash image and an automatic exposure time of a camera device, a main flash is fired and a raw image is shot. Then, a brightness gain of the raw image is compensated according to a preset gain threshold, and a digital brightness gain of the image is adjusted to enable the image shot each time to achieve the same brightness gain.
    Type: Application
    Filed: December 5, 2008
    Publication date: March 25, 2010
    Applicant: Altek Corporation
    Inventors: Chan-Min Chou, Chung-Pin Lu
  • Publication number: 20100073520
    Abstract: An image brightness compensation method and a digital camera device with an image brightness compensation function are suitable for adjusting a brightness of a digital image shot by a digital camera device, especially when the shot object is located outside a maximum output range of a flash lamp. The method includes the steps of pre-capturing a target image, and recording target information; triggering a flash lamp, and meanwhile capturing a raw image; determining whether the raw image satisfies a brightness threshold or not according to a brightness difference between the target information and the raw image; if the raw image fails to satisfy the brightness threshold, executing a brightness compensation program on the raw image according to the target information; and finally, generating an output image.
    Type: Application
    Filed: December 5, 2008
    Publication date: March 25, 2010
    Applicant: Altek Corporation
    Inventors: Chan-Min Chou, Chung-Pin Lu