Method and apparatus for maintaining a minimum pixel density across an object of interest

摘要

A method includes receiving a frame containing an object of interest and determining a current pixel density of the object of interest. The current pixel density is compared to a minimum pixel density to generate a comparison result and an indication is received of available throughput of a wireless network used to transmit the video. Based on the comparison result and the available throughput, a pixel density compensation method is selected from multiple methods, which include adjusting a zoom feature of a camera used to capture the video and adjusting encoded frame resolution. Using the selected pixel density compensation method, a pixel density compensation parameter is determined to adjust the current pixel density with respect to the minimum pixel density for the object of interest. The pixel density compensation parameter is provided to one or both of the camera or an encoder that sends the video over the wireless network.

主权项

1. A method for maintaining a minimum pixel density across an object of interest, the method comprising:
receiving a frame of video, wherein the received frame contains an object of interest; determining a current pixel density of the object of interest within the received frame; comparing the current pixel density to a minimum pixel density for the object of interest to generate a comparison result; receiving an indication of available throughput of a wireless network used for transmitting the video to a viewing device; selecting a pixel density compensation method from a plurality of pixel density compensation methods used to adjust the current pixel density, wherein the selecting is based on the comparison result and the indication of available throughput, wherein the plurality of pixel density compensation methods comprises a first method of adjusting a zoom feature of a camera used to capture the video and a second method of adjusting encoded frame resolution for at least one of the camera or an encoder used to encode the video for transmission to the viewing device over the wireless network; determining, using the selected pixel density compensation method, a pixel density compensation parameter to adjust the current pixel density with respect to the minimum pixel density for the object of interest; providing the pixel density compensation parameter to at least one of the camera or the encoder.