6.28 Dahua written examination

Just finished the written examination of Dahua in advance in the morning , Make a note of .

Time of written examination 60 minute ,13 Problem ,10 Choose to fill in the blanks +3 A simple answer .

The question type is different from that of last year's written examination seen in Niuke , No programming problems .

Select the blank part

new delete And malloc free The difference between

x&(x-1) The calculation of

Correct initialization of two-dimensional array

Give the image input size of a certain layer of convolutional neural network , Use convolution kernel size , Step size , Calculate the output image size

Do convolution filtering on an image , Convolution kernels for 3*3 matrix , From left to right , From top to bottom 1,1,1,1,8,1,1,1,1 What is the operation ,-1,-1,-1,-1,8,-1,-1,-1,-1 What is the operation

rgb turn hsv,hsv Re turn rgb, How many degrees of rotation

The rest is basically to show the program what the output is

The short answer part

1. How to solve the problem that the complex model of deep learning algorithm is difficult to deploy in practical application

Give the data bit width , Input and output image size , Convolution kernel size , Calculate storage space and calculation amount

Change the data bit width 、 Image size 、 Convolution kernel type , How does the storage space and calculation amount change

2. Use the camera to shoot a scene containing moving objects 1ms Exposure map A and 16ms Exposure map B, Design an algorithm to synthesize two graphs into one

3. Two rectangles intersect , Give the coordinates of the upper left corner and the lower right corner , Calculate the coordinates of intersecting rectangles , And the best way to judge whether it intersects