Abstract: A method of decoding a bitstream by an electronic device is provided. A block unit having an intra prediction mode is determined from an image frame according to the bitstream. The intra prediction mode is determined based on a first one of a plurality of mode indices, when a reference line index (Refidx) is different from a first predefined value. The intra prediction mode is determined based on the first mode index, when the Refidx is equal to the first predefined value and a most probable mode (mpm) flag is equal to a second predefined value. The intra prediction mode is determined based on a second one of the mode indices, when the Refidx is equal to the first predefined value and the mpm flag is different from the second predefined value. Then, the block unit of the image frame is reconstructed based on the intra prediction mode.

Abstract: Provided is a heart rate activity detecting method based on dynamic images. The method includes tracking a moving object. Preset brightness is determined based on an ambient condition. An image of the moving object is captured to generate a corresponding RGB color space, which is then converted to an image color space with adjustable brightness. The brightness of the image color space is adjusted according to the preset brightness to generate an image with corrected brightness, which is then converted to a RGB color space with the corrected brightness for calculating a heart rate activity of the moving object. The disclosure is capable of addressing the issue of an unstable light source by adjusting the brightness of the dynamic images, and then calculating the heart rate activity of the moving object according to the dynamic images. A heart rate activity detecting system based on dynamic images is also provided.

Abstract: A method of decoding a bitstream by an electronic device is provided. A block unit having an intra prediction mode is determined from an image frame according to the bitstream. The intra prediction mode is determined based on a first one of a plurality of mode indices, when a reference line index (Refidx) is different from a first predefined value. The intra prediction mode is determined based on the first mode index, when the Refidx is equal to the first predefined value and a most probable mode (mpm) flag is equal to a second predefined value. The intra prediction mode is determined based on a second one of the mode indices, when the Refidx is equal to the first predefined value and the mpm flag is different from the second predefined value. Then, the block unit of the image frame is reconstructed based on the intra prediction mode.

Abstract: Provided is a heart rate activity detecting method based on dynamic images. The method includes tracking a moving object. Preset brightness is determined based on an ambient condition. An image of the moving object is captured to generate a corresponding RGB color space, which is then converted to an image color space with adjustable brightness. The brightness of the image color space is adjusted according to the preset brightness to generate an image with corrected brightness, which is then converted to a RGB color space with the corrected brightness for calculating a heart rate activity of the moving object. The disclosure is capable of addressing the issue of an unstable light source by adjusting the brightness of the dynamic images, and then calculating the heart rate activity of the moving object according to the dynamic images. A heart rate activity detecting system based on dynamic images is also provided.

Abstract: A power amplifier includes a plurality of power amplification modules, each of which includes an input terminal and an output terminal. Equivalent input impedances seen respectively into the power amplification modules from the input terminals thereof are the same, and equivalent output impedances seen respectively into the power amplification modules from the output terminals thereof are the same. The input terminals of the power amplification modules are coupled together for receiving an input signal. The output terminals of the power amplification modules are coupled together for outputting an output signal. Each of the power amplification modules amplifies a portion of a power of the input signal to obtain a portion of a power of the output signal.

Abstract: A power amplifier includes a plurality of power amplification modules, each of which includes an input terminal and an output terminal. Equivalent input impedances seen respectively into the power amplification modules from the input terminals thereof are the same, and equivalent output impedances seen respectively into the power amplification modules from the output terminals thereof are the same. The input terminals of the power amplification modules are coupled together for receiving an input signal. The output terminals of the power amplification modules are coupled together for outputting an output signal. Each of the power amplification modules amplifies a portion of a power of the input signal to obtain a portion of a power of the output signal.