Abstract:
A method and apparatus for authenticating a user using a vein pattern are provided that project a near infrared (NIR) ray toward a skin of the user using a light emitting diode (LED), where the user is adjacent to a terminal including the LED. An image sensor receives a light reflected by the skin, generates a vein pattern of the skin based on an image generated using the received light, and authenticates the user as a registered user of a pre-stored vein pattern when the generated vein pattern matches the pre-stored vein pattern.
Abstract:
A method and an apparatus for recognizing a touch gesture are disclosed, in which the apparatus may obtain a depth image in which a touch object and a background area are captured, detect a touch input applied by the touch object to the background area in a touch detection area, and recognize a touch gesture associated with the touch input by tracking a change in the touch input.
Abstract:
According to one example embodiment, an image sensor is configured to operate in a plurality of operation modes. The image sensor includes a pixel array including unit pixels configured to generate an analog image signal from incident light, a readout circuit configured to generate a digital image signal by converting the analog image signal, and a control module configured to generate control signals for controlling operations of the pixel array and the readout circuit according to an operation mode of the image sensor. A first power voltage for driving the image sensor when the operation mode of the image sensor is an image recognition mode for recognizing a body of a user of the image sensor, is lower than a second power voltage for driving the image sensor when the operation mode of the image sensor is an image capture mode for capturing images by the user.
Abstract:
A key generating method includes obtaining a first error correcting code (ECC) for original data, obtaining read data from a cell array of a memory comprising the original data, generating a second ECC for the read data, obtaining a location of a cell in which an error occurs from the cell array of the memory in response to the second ECC being different from the first ECC, and generating a key for the memory based on the location of the cell in which the error occurs.
Abstract:
A light field image capturing apparatus including a shifted microlens array, the light field image capturing apparatus including: an objective lens focusing light incident from an external object; an image sensor including a plurality of pixels, the image sensor outputting an image signal by detecting incident light; and a microlens array disposed between the objective lens and the image sensor and including a plurality of microlenses arranged in a two-dimensional manner, the plurality of microlenses corresponding to the plurality of pixels, wherein at least a part of the plurality of microlenses is shifted in a direction with respect to the pixels corresponding to the at least a part of the plurality of microlenses.
Abstract:
An image sensing apparatus sensing a user input and an operating method of the image sensing apparatus are disclosed, in which the image sensing apparatus may include an optical source operating based on a burst mode including a turn-on cycle and a turn-off cycle, and an image sensor configured to receive a reflected light using a pixel array and output sensing data of a position of an object in a target area in the reflected light.
Abstract:
An authentication method includes projecting a near infrared (NIR) ray using a light emitting diode (LED) of a terminal, receiving a light reflected by a vein of a user using an image sensor of the terminal, verifying whether an image generated using the received light exhibits a vein pattern, in response to the image generated using the received light being verified as exhibiting the vein pattern, generating a vein pattern of the vein based on an image generated using the received light, and in response to the generated vein pattern being determined to match a pre-stored vein pattern, authenticating the user as a registered user corresponding to the pre-stored vein pattern.
Abstract:
A key generating method includes obtaining a first error correcting code (ECC) for original data, obtaining read data from a cell array of a memory comprising the original data, generating a second ECC for the read data, obtaining a location of a cell in which an error occurs from the cell array of the memory in response to the second ECC being different from the first ECC, and generating a key for the memory based on the location of the cell in which the error occurs.
Abstract:
A portable device and user input method of the portable device using a virtual input area is provided. The portable device may include a sensor configured to sense a user input to an input area, the input area being at least a portion of an area adjacent to the portable device, a determiner configured to determine a target object corresponding to the user input among at least one input object displayed on the portable device, based on an arrangement of the at least one input object, and a controller configured to generate a control command to control the target object.
Abstract:
A method and apparatus for generating a depth value corresponding to a subject by using a depth camera includes dividing a predetermined time section into n sub-time sections in order to measure the depth value, acquiring a voltage value corresponding to the amount of light reflected from the subject in each sub-time section, by using at least one photodiode included in the depth camera, quantizing the voltage value to any one level among predetermined levels, on the basis of the acquired n voltage values, and outputting the quantized value.