Asia Optical Co., Ltd.

Ching-Jung Tsai

Wen-Hung Hsieh

Jian-Chao Liao

Chih-Hung Yang

Yu-Ting Lee

Shu-Chen Hsiao

Po-Ching Wu

An image contrast evaluation method is disclosed. First, focusing is performed based on the contrast value of an image rendered by a lens on optical sensors, wherein the calculation of the contrast value comprises: selecting an area of the image, calculating the absolute value of brightness difference between each neighboring pixel, and selecting a specific value there from as the contrast value of the image based on a distribution of the calculated absolute values of the brightness differences.

Method to evaluate contrast value for an image and applications thereof

An image data processing method to capture still images while capturing motion images is disclosed. The method includes stopping a motion image capturing according to a first instruction to generate a first motion image data with a first resolution, thereafter, carrying out live view at a predetermined time; outputting the image data in the predetermined time and generating a first temporal motion data with a second resolution; capturing a still image data according to a second instruction after the predetermined time; transforming the first temporal motion data and the still image data and generating a second motion image data by combining the transformed data with the first motion image data. The method and device according to the present invention can be used in a camera to capture still images while capturing motion images.

Image data processing method

An autofocusing method is implemented in an image capture device comprising a lens and a sensor module. The relative positions of lens and the sensor module are adjusted for autofocusing based on a factor. First, the relative positions of the lens and the sensor module are adjusted based on a first unit of the factor to determine a plurality of states of the lens and the sensor module, where the lens renders clearer images on the sensor module. The states are utilized to estimate a best state achievable by focusing based on a second unit of the factor, where the lens renders a clearest image on the sensor module. The second unit is finer than the first unit. The lens or the sensor module is driven to the best state.

Automatic focusing methods and image capture devices utilizing the same

A method and a storage medium for auto exposure control are provided. A desired image is divided into a plurality of sample blocks, each includes red, green, and blue subpixels. A maximum exposure ratio and an average exposure ratio are obtained according to the maximum and average values of each red, green, and blue subpixel retrieved from each sample block and a predetermined desired maximum brightness and a predetermined desired average brightness. It is determined whether the maximum exposure ratio is smaller than the average exposure ratio. If it is, a strobe of the storage medium shines a flashlight based on the average exposure ratio, and, if it is not, the strobe shines a flashlight based on the maximum exposure ratio.

Storage medium and method to control auto exposure by the same

An image sensing module. A movable frame is disposed in and moves with respect to a fixed base. A support base is disposed in the movable frame and moves with respect to the fixed base. An image sensing unit is fixed to the support base. A first guiding mechanism combines the movable frame with the fixed base and moves with respect to the fixed base along a first direction, moving the support base with respect to the fixed base along the first direction. A first coil is disposed on the support base. A first magnet is disposed on the fixed base and opposes the first coil. A first Hall member is disposed on the support base and beside the first coil. When the first coil is energized by a voltage, a magnetic force is generated by the first coil and first magnet, moving the movable frame along the first direction.

Image sensing module

An image detecting module. The image detecting module comprises a base, a seat movably disposed on the base, an image detecting unit disposed on the seat, a first guide member by which the seat is joined to the base, moving relative to the base in a first direction, a first coil disposed on either the base or the seat, a first magnet disposed on either the base or the seat and opposite to the first coil, and a first Hall element disposed on either the base or the seat and adjacent to the first coil. A magnetic force is generated between the first coil and the first magnet by providing a voltage to the first coil, thereby moving the seat in the first direction along the first guide element.

Growing community of inventors

Taichung, Taiwan

Ching-Jung Tsai