公开(公告)号：US20230385370A1

公开(公告)日：2023-11-30

申请号：US17827811

申请日：2022-05-30

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Wei Chen ,  Chieh-Cheng Chen

IPC: G06F17/15 ,  G06F7/544 ,  G06N3/04

CPC classification number: G06F17/15 ,  G06F7/5443 ,  G06N3/0481

Abstract: A method and an apparatus for computation on a convolutional layer of a neural network are proposed. The apparatus includes an adder configured to receive a first sum of products, receive a pre-computed convolution bias of the convolutional layer, and perform accumulation on the first sum of products and the pre-computed convolution bias to generate an adder result of the convolutional layer, where the first sum of products is a sum of products of quantized input activation of the convolutional layer and quantized convolution weights of the convolutional layer, and where the pre-computed convolution bias is associated with a zero point of input activation of the convolutional layer and a zero point of output activation of the convolutional layer.

公开(公告)号：US11699222B2

公开(公告)日：2023-07-11

申请号：US17180663

申请日：2021-02-19

Applicant: Novatek Microelectronics Corp.

Inventor： Chieh-Cheng Chen ,  Po-Wei Chen

IPC: G06T5/00 ,  G06T5/50 ,  G06T3/40 ,  G06T7/13

CPC classification number: G06T5/50 ,  G06T3/40 ,  G06T5/001 ,  G06T7/13 ,  G06T2207/10024 ,  G06T2207/20084 ,  G06T2207/20221

Abstract: The disclosure provides an image processing device. An image processing device includes a neural network circuit, a gain control circuit, and an image merge circuit. The neural network circuit is configured to receive an input image, and perform an image processing operation on the input image according to fixed parameters to output a first intermediate image. The gain control circuit, coupled to the neural network circuit, is configured to receive the first intermediate image from the neural network circuit, and multiply the first intermediate image by at least one amplitude gain to output a second intermediate image. The image merge circuit, coupled to the gain control circuit, configured to receive the second intermediate image and the input image, and combine the second intermediate image and the input image to obtain an output image. In addition, a method for image enhancement is also provided.

公开(公告)号：US10282831B2

公开(公告)日：2019-05-07

申请号：US14981821

申请日：2015-12-28

Applicant: Novatek Microelectronics Corp.

Inventor： Chien-Chi Chen ,  Tung-Hsin Lee ,  Chieh-Cheng Chen

IPC: G06T5/50 ,  G06T5/00

Abstract: An apparatus for motion compensated noise reduction for input images is provided. The motion estimation and motion compensation circuit performs a motion estimation operation and a motion compensation operation on a current image and a previous image to obtain a first patch. The block matching operation circuit performs a block matching operation on the current image and the previous image to obtain a second patch. The motion detection circuit performs a motion detection operation on a target patch according to the first patch and the second patch to output a set of third patches. The current image includes the target patch. The noise reduction circuit performs a noise reduction operation on the set of third patches according to a threshold curve, so as to generate the target patch that the noise is reduced. A method for motion compensated noise reduction for input images is also provided.