Feature encoding/decoding method and device, recording medium on which bitstream is stored, and method for transmitting bitstream

A feature encoding method performed by a feature encoding apparatus, the feature encoding method comprising:

• generating vertical channel information on a vertical channel in a feature map and horizontal channel information on a horizontal channel in the feature map;
• and
• encoding information on a channel boundary in the feature map based on the vertical channel information and the horizontal channel information,
• wherein based on a channel size in the feature map being uniform, the vertical channel information comprises information on a number of vertical channels, and the horizontal channel information comprises information on a number of horizontal channels, and
• wherein based on the channel size in the feature map being not uniform, the vertical channel information comprises x-axis position information of a predetermined channel region having a same channel size in the feature map and information on a number of vertical channel boundaries in the predetermined channel region, and the horizontal channel information comprises y-axis position information of the predetermined channel region and information on a number of horizontal channel boundaries in the predetermined channel region.

A method of transmitting a bitstream generated by a feature encoding method, the feature encoding method comprising:

• generating vertical channel information on a vertical channel in a feature map and horizontal channel information on a horizontal channel in the feature map;
• and
• encoding information on a channel boundary in the feature map based on the vertical channel information and the horizontal channel information,
• wherein based on a channel size in the feature map being uniform, the vertical channel information comprises information on a number of vertical channels, and the horizontal channel information comprises information on a number of horizontal channels, and
• wherein based on the channel size in the feature map being not uniform, the vertical channel information comprises x-axis position information of a predetermined channel region having a same channel size in the feature map and information on a number of vertical channel boundaries in the predetermined channel region, and the horizontal channel information comprises y-axis position information of the predetermined channel region and information on a number of horizontal channel boundaries in the predetermined channel region.